Carrier 58MTB060F10112 User Manual FURNACE Manuals And Guides L0902504
CARRIER Furnace/Heater, Gas Manual L0902504 CARRIER Furnace/Heater, Gas Owner's Manual, CARRIER Furnace/Heater, Gas installation guides
User Manual: Carrier 58MTB060F10112 58MTB060F10112 CARRIER FURNACE - Manuals and Guides View the owners manual for your CARRIER FURNACE #58MTB060F10112. Home:Heating & Cooling Parts:Carrier Parts:Carrier FURNACE Manual
Open the PDF directly: View PDF 
.
Page Count: 62
| Download | |
| Open PDF In Browser | View PDF |
®
to the Expertg[
Installation, Start-up, and Operating Instructions
Sizes 060-120, Series 110
Visit www.Carrier.com
NOTE:
Read
the installation.
the entire instruction
manual
Please retain these instructions
after installation
for future
before
starting
with the furnace
reference.
ISO 9001:2000
NOTE: This furnace can be installed as a (2-pipe) direct vent
or (1-pipe) non-direct
vent condensing gas furnace.
Special Venting Requirements
Consignes
for Installations in Canada
Installation
in Canada must conform to the requirements
of CSA
B149 code.
Vent systems must be composed
of pipe, fittings,
cements,
and primers
listed to ULC $636.
The special vent
fittings
and accessory
concentric
vent termination
kits and
accessory external drain trap have been certified to ULC $636 for
use with those IPEX PVC vent components
which have
certified to this standard.
In Canada, the primer and cement
been
must
be of the same manufacturer
as the vent system - IPEX System
636, PVC/CPVC
Primer, Purple Violet for Flue Gas Venting and
IPEX System 636(1)
, PVC Cement for Flue Gas Venting, rated
sp_ciales
pour l'installation
Uinstallation
faite au Canada
code CSA B149. Ce syst_me
tuyaux, raccords, ciments
tuyauterie
de ventillation
de ventillation
au Canada
doit se conformer
aux exigences
de ventillation
doit se composer
du
de
et appr_ts conformes
au ULC $636. La
des gaz, ses accessoires,
le terminal
concentrique
mural ainsi que l'ensemble
du drain de condensat
ext_rieur
ont _t_ certifies
ULCS
636 pour l'application
des
composantes
IPEX PVC qui sont certifi_es
fi ce standard.
Au
Canada l'appr_t
que le syst_me
PVC/CPVC.
et le ciment doivent _tre du m_me manufacturier
de ventillation
- IPEX Syst_me
636, Appr_t
Mauve
Violette
pour
conduit
en _vacuation
des gaz
TM
Class IIA, 65 deg C. must be used with this venting
not mix primers and cements from one manufacturer
system - do
with a vent
system from a different manufacturer.
Follow the manufacturer's
instructions
in the use of primer and cement and never use primer
or cement
beyond
its expiration
The safe operation,
as defined
date.
by ULC
$636,
of the vent system
is based on following
these installation
instructions,
the vent
system manufacturer's
installation
instructions,
and proper use of
primer and cement.
All fire stop and roof flashing used with this
system must be UL listed material.
Acceptability
under Canadian
standard CSA B149 is dependent
upon full compliance
with all
installation
instructions.
Under this standard,
it is recommended
that the vent system
be checked
once a year by qualified
service
personnel.
The
TM,
et le ciment
d'un
autre
having
jurisdiction
(gas
inspection
authority,
building
department,
fire department,
etc) should be
before installation
to determine
the need to obtain a
permit.
(1) System 636 is a trademark of IPEX Inc.
d'un manufacturier
avec le syst_me
manufacturier.
Bien
suivre
les
manufacturier
lors
pas utiliser ceux-ci
de ventillation
indications
du
de l'utilisation
de l'appr_t et du ciment
si la date d'expiration
est atteinte.
Uop_ration
s_curitaire,
tel que d_finit par ULC $636,
de ventilation
est bass sur les instructions
d'installation
ainsi que l'usage
appropri_
de l'appr_t
et ciment.
et ne
du syst_me
suivantes,
Tout arr_t feu et
solin de toit utilis_s avec ce syst_me doivent _tre des mat_riaux
list,s UL.
Uacceptation
du standard
Canadien
CSA B419 est
directement
reli_ fi l'installation
conforme
aux instructions
cihaut
mentionn_es.
Le
standard
Canadien
recommande
1'
inspection
authority
municipal
consulted
et IPEX Syst_me
636(1)
ciment pour PVC pour conduit en
_vacuation
des gaz, _valu_ CLASSE
IIA, 65 deg. C. doit _tre
utilis_ avec ce syst_eme d'_vacuation
- ne pas m_langer
l'appr_t
Les
par un personel
autorit_es
qualifi_
ayant juridiction
en bfitiments,
d@artement
consult_es
avant l'installation
requis.
et ce, une fois par annie.
(inspecteurs
de gas, inspecteurs
des incendies,
etc) devraient
_tre
afin de d_terminer
si un permis est
Required
Notice
for Massachusetts
Installations
IMPORTANT
The Commonwealth
of Massachusetts
5.08: Modifications
to NFPA-54,
2) Revise
10.8.3
by adding
requires
Chapter
the following
additional
a. For all side wall horizontally
in whole
compliance
with regulation
248 CMR
as follows:
10
requirements:
vented
or in part for residential
gas fueled
purposes,
equipment
including
those
installed
in every
owned
or operated
dwelling,
building
or structure
by the Commonwealth
used
and where
the side wall exhaust vent termination
is less than seven (7) feet above finished grade in the area of the venting,
including
but not limited to decks and porches, the following requirements
shall be satisfied:
1. INSTALLATION
OF CARBON
MONOXIDE
DETECTORS.
At the time of installation
of the side wall horizontal
gas fueled equipment,
the installing
plumber or gasfitter shall observe that a hard wired carbon monoxide
alarm and battery back-up
is installed on the floor level where the gas equipment
is to be installed.
installing
installed
vented
detector with an
In addition,
the
plumber or gasfitter shall observe that a battery operated or hard wired carbon monoxide
detector with an alarm is
on each additional
level of the dwelling, building
or structure served by the side wall horizontal
vented gas fueled
equipment.
It shall be the responsibility
of the property owner
the installation
of hard wired carbon monoxide
detectors
to secure
the services
of qualified
licensed
professionals
for
a. In the event that the side wall horizontally
vented gas fueled equipment
is installed in a crawl space or an attic, the hard
wired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.
b. In the event that the requirements
of this subdivision
can not be met at the time of completion
of installation,
shall have a period of thirty (30) days to comply with the above requirements;
provided, however,
(30) day period, a battery operated carbon monoxide
detector with an alarm shall be installed.
2. APPROVED
CARBON
MONOXIDE
DETECTORS.
Each carbon monoxide
detector as required
above provisions
shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.
3.
SIGNAGE.
A metal or plastic identification
minimum
height of eight (8) feet above grade
fueled
VENT
accordance
The state or local gas inspector of the side wall horizontally
unless,
upon inspection,
the inspector
observes
carbon
with
5. EXEMPTIONS:
the provisions
of 248 CMR
The following
equipment
5.08(2)(a)1
is exempt
(1.) The equipment
listed in Chapter 10 entitled
NFPA 54 as adopted by the Board; and
MANUFACTURER
in accordance
with
the
through
REQUIREMENTS
inch in size,
"(}AS
4.
from 248 CMR 5.08(2)(a)1
"Equipment
- GAS
(1/2)
vented gas fueled equipment
shall not approve
monoxide
detectors
and signage
installed
in
Not Required
through
4:
To Be Vented"
in the most current
(2.) Product Approved
side wall horizontally
vented gas fueled equipment
installed in a room
the dwelling, building or structure used in whole or in part for residential
purposes.
c.
the owner
said thirty
plate shall be permanently
mounted
to the exterior
of the building
at a
directly in line with the exhaust vent terminal for the horizontally
vented gas
heating appliance
or equipment.
The sign shall read, in print size no less than one-half
DIRECTLY
BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS".
4. INSPECTION.
the installation
that during
EQUIPMENT
VENTING
SYSTEM
or structure
edition
separate
PROVIDED.
of
from
When
the
manufacturer
of Product Approved
side wall horizontally
vented gas equipment provides a venting system design
or venting system components
with the equipment,
the instructions
provided by the manufacturer
for installation
of the equipment
and the venting system shall include:
1. Detailed
instructions
2. A complete
for the installation
parts list for the venting
d. MANUFACTURER
the manufacturer
parts for venting
satisfied
parts
venting
design
or venting
- (}AS
venting
of
instructions
shall be Product
installation
all
system"
regarding
or the venting
system
components;
and
system.
EQUIPMENT
VENTING
SYSTEM
NOT
PROVIDED.
When
installation
these requirements,
and Gas Fitters,
shall
Approved
be included
by the Board,
with
the
appliance
and the instructions
or equipment
for that system
installation
shall include
a
instructions.
instructions
for
equipment,
all venting instructions,
all parts
shall remain with the appliance or equipment
For questions
design
of a Product Approved
side wall horizontally
vented gas fueled equipment
does not provide the
the flue gases, but identifies
"special venting systems",
the following
requirements
shall be
systems"
list and detailed
e. A copy
system
REQUIREMENTS
system
by the manufacturer:
1. The referenced
"special
instructions;
and
2. The "special
of the venting
please
contact
239 Causeway
all Product
Approved
lists for venting
at the completion
the Commonwealth
Street,
Boston,
side
of Massachusetts
MA
wall
instructions,
and/or
of the installation.
02114.
Board
617-727-9952.
horizontally
all venting
vented
gas
design
instructions
of State Examiners
fueled
of Plumbers
TABLE
SAFETY
OF CONTENTS
CONSIDERATIONS
CODES
Sequence
..........................
AND STANDARDS
3
...........................
5
Safety
............................................
General Installation
..................................
Combustion
and Ventilation
Duct Systems
Acoustical
5
5
Air ........................
and Fibrous
Duct ................
Gas Piping and Gas Pipe Pressure Testing
Electrical Connections
...............................
Venting
...........................................
ELECTROSTATIC
INTRODUCTION
DISCHARGE
(ESD)
....................................
APPLICATIONS
General
PRECAUTIONS
...
.....................................
...........................................
Upflow
Applications
.................................
Downflow
Applications
Horizontal
Left (Supply-Air
Horizontal
LOCATION
General
.............................
Discharge)
Right (Supply-Air
Discharge)
........................................
......
Applications
.....
..........................................
Furnace Location and Application
.....................
AIR FOR COMBUSTION
AND VENTILATION
Leveling
Installation
in Upflow
53
7
7
Heat Pump
Mode
Component
Self-Test
8
Operate
Furnace
8
8
8
Adjust
8
Set Thermostat
12
.......
.............................
Treatment
.....................
21
23
...........................
............................
Prime
....................................
29
29
Purge Gas Lines
30
45
45
.....................................
Drain Protection
......................
...................................
Off Delay
(Heat Mode)
Heat Anticipator
59
................
60
.....................
60
Check Safety Controls
..............................
Checklist
.........................................
60
61
AIRFLOW
O
q ozo
RIGHTAIRF!O w
AIRFLOW
©
AIRFLOW
A93041
Fig. 1 - Multipoise
Orientations
SAFETY
CONSIDERATIONS
30
.................
........................................
Trap With Water
54
27
Air and Vent Pipe Systems
Drain ..................................
Condensate
54
54
................................
23
24
.....................................
.....................................
START-UR ADJUSTMENTS,
AND
General
..........................................
53
Rise ..............................
21
21
of Existing Furnaces from
Vent Systems ..............................
Application
Condensation
53
.................................
..................................
21
26
27
General
..........................
..............................
13
16
Gas Piping ........................................
Electrical Connections
..............................
Combustion
Condensate
Blower
Mode
.................................
Set Gas Input Rate
Set Temperature
25
26
Removal
Common
Furnace
Restart
8
Filter Arrangement
.................................
Bottom Closure Panel ...............................
115-v Wiring
48
21
.................
24-v Wiring
Accessories
......................
21
Installation
in Horizontal Applications
Air Ducts .........................................
Air Connections
Air Connections
Mode)
17
18
...........................
Applications
General Requirements
Ductwork
Acoustical
Heating
48
Thermostat
17
17
..........
and Downflow
Supply
Return
.........
....................................
Legs (If Desired)
(Non-Adaptive
With Two-Stage
16
Furnace Location Relative to Cooling Equipment
Hazardous
Locations
...............................
INSTALLATION
Heating
Blower
10
Applications
Two-Stage
Continuous
7
................
47
Thermostat
49
49
7
Glass
..............................
Heating With Single-Stage
Mode) .................................
Cooling Mode
...................................
Thermidistat
Mode
...............................
7
......................................
Lining
of Operation
Two-Stage
(Adaptive
SAFETY
CHECK
....................
.....
FIRE, EXPLOSION,
ELECTRICAL
SHOCK,
CARBON MONOXIDE POISONING HAZARD
AND
45
46
Failure to follow this warning could result in dangerous
operation, serious injury, death, or property damage.
46
46
Improper
installation,
maintenance,
or use
47
47
adjustment,
could
cause
alteration,
carbon
service,
monoxide
poisoning,
explosion,
fire,
electrical
shock,
or other
conditions
which may cause personal injury or property
damage.
Consult
a qualified
service
agency, local gas
supplier, or your distributor
or branch for information
or
assistance.
The qualified
service agency
must use only
factory-authorized
and listed kits or accessories
when
modifying this product.
This furnace is CSA (formerly
for natural and propane gases
installation
in alcoves,
attics, basements,
closets, utility rooms,
crawlspaces,
and garages. This furnace is factory-shipped
for use
with natural gas. A CSA listed gas conversion
kit is required to
FURNACE
RELIABILITY
HAZARD
Improper
installation
or misapplication
of furnace
may
require excessive
servicing or cause premature
component
failure.
Application
of this furnace
attention
given
air temperature
should
be indoors
convert
hnproper
installation,
adjustment,
alteration,
maintenance,
or use can cause explosion,
fire, electrical
other conditions
which
may cause death, personal
This furnace
or any other
rate,
service,
shock, or
injury,
or
qualified
installer or agency must use factory-authorized
kits or
accessories
when modifying
this product.
Refer to the individual
instructions
packaged with the kits or accessories
when installing.
Wear safety glasses, protective
clothing,
a fire extinguisher
available.
Read these
instructions
thoroughly
and follow
all warnings
or cautions
include in literature
and attached
to the unit.
Consult local
Code (NEC)
NFPA
of the National
and the National
Fuel Gas
Electrical
70.
refer to the current
of Canada
Installation
CAN/CSA-B149.1
and .2 Natural
Gas and Propane
Codes, and Canadian Electrical
Code CSA C22.1
Recognize
safety
This is the safety-alert
When you see this symbol on
manuals, be alert to the potential
Understand
CAUTION.
DANGER
severe
which
of the National
Standards
symbol/_.
the unit and in instructions
for personal injury.
or
the signal
words
DANGER,
WARNING,
and
These words are used with the safety-alert
symbol.
identifies the most serious hazards which will result in
personal
injury or death. WARNING
signifies
hazards
could result in personal
injury or death. CAUTION
is
used to
personal
identify
unsafe
practices
which
may result in minor
injury or product and property damage. NOTE is used
to
highlight
suggestions
which
installation,
reliability,
or operation.
will
result
in
built
on site or a manufactured
This
furnace
enhanced
this caution
may result
in environmental
pollution.
Remove
and recycle
refrigerant,
control
all components
boards,
thermostat.
db. Failure
Return-air
to follow
of heat exchangers,
or materials
etc.) before
(i.e.,
oil,
unit final disposal.
may result
in personal
58MTB,
2-Stage,
4-way
with
the
applications.
(See Fig. 4.)
drain
and pressure
Minor modifications
1. See
details
Multipoise,
Category
IV, condensing
furnace
is available
ranging in high-stage
gas input rates of 60,000
injury.
RIGHT,
direction)
in Applications
Always
provide
adequate
combustion
and ventilation
air
specified
in section Combustion
Air and Vent Pipe Systems
these instructions
to furnace.
Combustion
products
must be discharged
outdoors.
Connect
as
of
this
furnace
to an approved
vent system
only, as specified
in the
Combustion
Air and Vent Piping sections of these instructions.
Never
test for gas leaks with
an open flame.
available
soap solution
made
leaks to check all connections,
section of these instructions.
Always
install
furnace
specifically
as specified
to operate
within
Use a commercially
for the detection
of
in the GAS PIPING
the furnace's
intended
a duct system
which
has an external
static
the allowable
range, as specified
in the SET
RISE section of these instructions
and furnace
plate.
furnace, the return
the furnace casing
the furnace.
furnace
supply
ducts carry
the space containing
air
the
air shall also be handled by duct(s) sealed to
and terminating
outside the space containing
may be used
installation
containing
condition
Gas-Fired,
in model
to 120,000
tubes
are
Install this furnace only in a location and position as specified
in
LOCATION
and INSTALLATION
sections of these instructions.
for construction
and operation
is permanently
complies
installed
the furnace. This prevents
as created by the circulating
flame rollout
structure.
model
must not exceed 80°F (27°C)
air limits may affect reliability
and controls.
in Fig.
down to
setback
garage
section
must be
of these
heat provided
that the
with:
with all electrical
wiring,
piping, air filters, venting and ducting installed according to
these installation
instructions.
A return air duct is provided,
sealed to the furnace casing, and terminated
outside the space
Sheet metal parts may have sharp edges or burrs. Use care
and wear appropriate
protective
clothing,
safety glasses
and gloves when handling
parts and servicing furnaces.
The
minimum
operation
a night
in DOWNFLOW,
HORIZONTAL
LEFT
(supply-air
discharge
as shown
• The furnace
this caution
tile,
For
at final site.
return-air
A gas-fired furnace for installation
in a residential
installed as specified
in the Hazardous
Locations
instructions.
HAZARD
to follow
motors
required when used
or HORIZONTAL
furnace
Failure
completed
continuous
temperature
these return
This
furnace
is shipped
connected
for UPFLOW
The
CUT
for
When
a furnace
is installed
so that
circulated by the furnace to areas outside
HAZARD
to follow
building
is designed
temperature
of 60°F (16°C) db or intermittent
55°F
(13°C)db
such
as when
used with
rating
Failure
gas.
to combustibles.
manufacturer's
coil assembly
or when the manufacturer's
coil
box is used. The design
of the 58MTB
furnace
is not CSA
certified for installation
in mobile homes, recreational
vehicles, or
outdoors.
This furnace
is suitable
for installation
in a structure
rise range with
pressure
within
TEMPERATURE
ENVIRONMENTAL
clearances
SHALL NOT be installed directly on carpeting,
combustible
material other than wood flooring.
applications
section.
In Canada,
information.
editions
for use with propane
downflow
installations,
a factory accessory
floor base must be
used when installed on combustible
materials and wood flooring.
Special base is not required when this furnace is installed on the
property damage.
Consult a qualified installer, service agency, or
your distributor
or branch
for information
or assistance.
The
building
codes, the current editions
Code (NFGC) NFPA 54/ANSI Z223.1
furnace
See Fig. 3 for required
with special
to vent sizing and material, gas input
rise, unit leveling, and unit sizing.
Follow all safety codes.
and work gloves.
Have
AGA and CGA) design-certified
(see furnace rating plate) and for
sizes
Btuh.
and/or
drawing
a negative pressure
air blower, causing
combustion
products
a
into the
• The furnace is controlled by a thermostat.
It may not be "hot
wired" to provide heat continuously
to the structure without
thermostatic
control.
• Clean outside air is provided for combustion. This is to
minimize the corrosive effects of adhesives, sealers and other
construction materials. It also prevents the entrainment of
drywall dust into combustion air, which can cause fouling and
plugging of furnace components.
• The temperature of the return air to the furnace is maintained
between 55°F (13°C) and 80°F (27°C), with no evening
setback or shutdown. The use of the furnace while the structure
is under construction is deemed to be intermittent operation per
our installation instructions.
Step
• The air temperature rise is within the rated rise range on the
furnace rating plate, and the firing rate has been set to the
nameplate value.
• The furnace, ductwork and filters are cleaned as necessary to
remove drywall dust and construction debris from all HVAC
system components after construction is completed.
This furnace is shipped with the following materials to assist in
proper furnace installation. These materials are shipped in the
main blower compartment.
Installer Packet includes:
Installation, Startup, and Operating Instructions
Service and Maintenance Instructions
User's Information Manual
Warranty Certificate
Quantity
1
Collector Box or condensate
trap extension tube
1
Inducer housing drain tube
1
1/2-in CPVC street elbow
2
Drain tube coupling
1
Drain tube coupling grommet
1
Condensate
3
trap hole filler plug
Vent and combustion-air
Combustion-air
intake hole filler plug
intake pipe perforated disk assembly
2
1
Gas line grommet
1
Vent pipe grommet
1
Combustion-air
1
pipe grommet
Power entry hole filler plug
Vent Pipe Extension
*ONLY supplied
2
1"
with some furnaces.
The furnace shall be installed so that the electrical components
are protected from water.
For accessory installation detail, refer to the accessory installation
instruction.
NOTE:
AND
STANDARDS
1 - Safety
• US: National Fuel (;as Code (NFGC) NFPA 54-2006/ANSI
Z223.1-2006 and the Installation Standards, Warm Air Heating
and Air Conditioning Systems ANSI/NFPA 90B
• CANADA: National Standard of Canada, Natural Gas and
Propane Installation Code (NSCNGPIC) CSA B149.1-05
• The filters used to clean the circulating air during the
construction process must be either changed or thoroughly
cleaned prior to occupancy.
Loose Parts Bag includes:
Pressure tube extension
CODES
Follow all national and local codes and standards in addition
to these instructions.
The installation
must comply with
regulations of the serving gas supplier, local building, heating,
plumbing, and other codes. In absence of local codes, the
installation must comply with the national codes listed below and
all authorities having jurisdiction.
In the United States and Canada, follow all codes and standards
for the following:
Remove all shipping materials before operating furnace.
Step 2 - General
Installation
• US: NFGC and the NFPA 90B. For copies, contact the
National Fire Protection Association Inc., Batterymarch Park,
Quincy, MA 02269; or for only the NFGC contact the
American Gas Association, 400 N. Capitol, N.W., Washington
DC 20001
• A manufactured (Mobile) home installation must conform with
the Manufactured Home Construction and Safety Standard,
Title 24 CFR, Part 3280, or when this standard is not
applicable, the Standard for Manufitctured Home Installation
(Manufactured Home Sites, Communities, and Set-Upsg,
ANSI/NCS A225.1, and/or CAN/CSA-Z240, MH Series
Mobile Homes
• CANADA: NSCNGPIC. For a copy, contact Standard Sales,
CSA International, 178 Rexdale Boulevard, Etobicoke
(Toronto), Ontario, M9W 1R3, Canada.
C
O_
d_c_
c°*G_
_on
"t::{
=
0Z
o
,o E = = _ g_.
"o_
09
LO
"_C'--
OLQ
o c_d.-oS
X_
CO
_ 'i
O.-C;
"-_
_o_oo._
o
_ x
cO
d
000
='_
_
_0
-o_.o _EW:g °_o°
09(.0
E _
0
_oe_<
o
_
_
0
--
_
O '-u
0 _
_-0
_CO
_$OLO
O_ o O_ c '_
0 05 O'TO
_._
o
o
zn
.,E
o0o
_
_E_Oo__OoO'-
%-
o:_O0 >
m..m_"_-_z- o z:
_
_ oli_
cO :_
O, 5
#.#.#mm#
_ o_
090_--
"'T
_ '_
O,1 _O' 0
co
Er)
,_'_'_om
_LLLL
E _LLo0
_0oooo_.
_
_
C
_o
O_
000000
o
_-
_O00_C_
1_
_-_000000
'_ o'_u-www_
o
_
o
_olooooo
--__0:0
.,:
aJ
000_
I11
k-
o
Z
A05053
Fig. 2 - Dimensional
Drawing
- In. (mm)
NSTALLATION
e
•
•
•
e
e
®
e
•
•
This forced air fumace is equipped for use with natural gas at altitudes 0 - 10,000 ft (0 - 3,050m), except 140 size furnaces are only approved for altitudes 0 - 7,000 fL
(0- Z135m).
An accessory kit, supplied by the manufacturer,
shah be used to convert to propane gas use or may be required for some natural gas applications.
This famace is for indoor installation in a building constructed
on site. This furnace may be installed in a manufactured
(mobile) home when stated on rating plate and
using factory authorized
kit..
This furnace may be instated on combustible
floodng in alsove or closet at Minimum
Inches Clearance
To Combustible
Construction
as described below.
This _mace
requires a special venting system.
Refer to the installation instructions for parts list and method of installation. In the US this furnace is for use with
schedule=40
PVC, PVC-DWV,
CPVC, or AB,S-DWV pipe, and must not be vented in common with other gas-fired appliances.
In Canada, refer to installation instructions
for vent materiaN.
Construction
through which vent/air intake pipes may be installed is maximum
24 inches (610 ram), minimum 3/4 inches (19 mm) thickness (including
roofing materials).
Cette foumaise _ air puls6 est 6quip6e pour utilisation avec gaz naturem et altitudes comprises
entre 0 - 3,050m (0 - 10,000 pi),except6
queles foumaises
de 140 taifle
sont pour altitudes comprises entre 0 - 2,135m (0 - 7,000pi).
Utiiiser une trousse de conversion,
foumie par le fabdcent, pour passer au gaz propane ou pour certaines installations
au gaz natureL
Cette foumaise _ air pulse est pour installation a Fintedeur dans un b_timent construit sur place. Cette foumaise a air puNe peut 6tre install6e dans une maison
prCfabdqu6e
(maison mobile) si prescrit par la plaque signal6tique et si'l on utilise une trousse specifi6e par le fabricent.
C.ette foumaise
pout 6tre install6e sur un piancher combustible
dans un enfoncement
ou un pmacerd en observant
les D6gagernent
Minimum
En Pouces Avec
EI6ments
De Construction
Combustibles.
Cette foumaise
n6cessite un syst_me d'6vacuation
sp6cial. La m6thode
d'instaliation
et la liste des pi_ces n6cessaires
figurent dana les instructions
d'installation.
Aux
Etats-Unis, cette foumaise
dolt s'utiliser avec la tuyautede des nomenclatures
40 PVC, PVC-DWV,
CPVC, ou ,ABS-DWV
et elle ne peut pas _tre ventii6e conjointment
avec d'autres appareils & gaz. Au Canada, referer aux instructions
d'installation
pour lax matedaux a ventiler. Epaisseur
de la construction
au travers de laquene il est
possible de faire passer les tuyaux d'aeration (admission/evacuation):
24 po (610 mm) maximum,
3/4 pc (19mm) minimum
(y compds la toiture).
For up&3w and downflow
applications,
furnace
must be installed level, or pitched within 1/2" (12.7ram) of level. For a
horizontal appllaatiorl, the furnace must be pitched mirlimum 1/4" (6.35mm) to maximum of 1/2" (12.7mm) forward
proper drainage. See Installation Manual for IMPORTANT
unit support details on horizontal applications.
LEVEL 0" ( 0 ) TO
for
_,.
MIN 114" (6.35mm) TO
1/2" (12.7mm) MAX t ¢_L-_-_
Pour des applications de flux ascendant et descendant, la foumaise doit ¢¢e install6e de niveau ou indin6e _
pas plus de 1/2" (12.7mm) du niveau. Pour une applicetion hodzontale, la foumaise dolt &,Ire inclin6e enli'e minimum
T
UPFLOW
1/4" (6.35mm) et maximum 1/2" (12.7ram) du niveau pour le drainage appropn6. En cas d'installation en position
hodzootale, consulter les renseignements
mMPORTANTS sur le support dans le manuel d'instaHation.
DOWN
OR
1/2" (12.7mm)MAX
............ !
F_0RONT_)
FLOW
HORIZONTAL
MINIMUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION
This furnace is approved for UPFLOW, DOWNFLOW and
HORIZONTAL installations.
ALL POSiTiONS:
Minimum
front clearance
t 1 140 size furnaces
DOWNFLOW POSITIONS:
t
for service
require
I inch back
For installation on combustible
NAHA01101SB,
CoilAssembly,
or WENC or WTNC.
HORIZONTAL
24 inches
(610mm).
clearance
11oors only when
Part No. CAR,
to combustible
Cette foumaise est approuv_e pour I'installation HORIZONTALE
et la circulation d'air VERS LE HAUT et VERS LE BAS.
materials.
instated on special base No. KGASB0201ALL
or
CAP, CNPV, CNRV or Coil Casing, Part No. KCAKC,
Clearance
furnace
is permissible
jacket,
Les _hes
and building
§
Clearance
shown
O
120 and
140 size
only between
joists,
lines formed
studs,
require
of top
and two
sides
of
or framing.
is for air inlet and air curet
furnaces
by intersections
de degagement
ne change pas avec
I'orientation de la
gen_rateur d'air chaud.
furnace orientation,
POSITIONSi
Line contact
arrows
do not change with
ends.
1 inch bottom
clearance
to combustible
materials.
DEGAGEMENT MNfl_UM EN POUCESAVEC I_LleMENTSDE CONSTRUCTION COMBUSTIBLES
POUR TOUS LES POSITIONS:
1- t
D@jagement
avant minimum
de 24 po (610mm ) pour l'entretien.
Pour les foumaises
de 140 taifle, 1 pc (25mm) d6gagement
des mat6riaux
requis au-arriere.
POUR LA POSITION COURANT
1
Le contact
deuxottes
batiment.
DESCENDANT:
n ° KCAKC
ou WENC
ou
ou WTNC.
n'est permis qOentre les lignes form6es
par les intersec_ons
de la chemise de la foumaise,
et des solives, des montants
du dessus et des
ou de la charpente
du
Vent clearance to
combustibles 0".
La distance indiqu_e conceme
I'extr_mit6 du tuyau d'ardv_e
d'air et I'extr_mit_ du tuyau de sortie
d'aic
Pour les foumaises
de 120 et 140 taifie, 1 pc (25mm) d6gagement
des materiaux
combustibles
est requis
• US: Section
Combustion
• CANADA:
and Ventilation
9.3 of the NFPA 54/ANSI
Air
Step 6 - Gas Piping
Z223.1-2006,
Air for
and Ventilation
and Air Supply
Venting
(ACCA)
Manual
Contractors
Association
Refrigeration,
2001 Fundamentals
HVAC Systems
Contractors
Association
and Equipment
Step 5 - Acoustical
• US and CANADA:
(SMACNA),
or Ainerican
and Air Conditioning
Handbook
Chapters
Engineers
Chapter 34 or 2000
codes.
of SMACNA,
must be installed
flexible
not exceed
Parts
4, 5, and 6, A, B, E,
connectors
Glass Duct
NFPA 90B as
181 for (?lass I Rigid Air Ducts
by a licensed
plumber
are used, the maximum
or gas fitter.
length
shall
36 in. (914 mm)
• When lever type gas shutoffs are used they shall not exceed 36 in.
014 mm).
• The use of copper
9 and 16.
Lining and Fibrous
current edition
tested by UL Standard
Testing
chapters 5, 6, 7, and 8 and
CAN/CSA-B149.1-05
• This product
• When
D, Sheet Metal and Air Conditioning
National
plumbing
• CANADA:
and Gas Pipe Pressure
Z223.1-2006;
In the state of Massachusetts:
Air Conditioning
of Heating,
(ASHRAE)
0 (pc) D_Jagement
d'_vent aveccombustibles.
G, and H.
for Appliances
Step 4 - Duct Systems
• US and CANADA:
• US: NFPA 54/ANSI
national
Part 8 of the CAN/CSA-B149.1-05,
Systems
Clearancein inches
D6gagement(pc).
au-dessous.
Step 3 - Combustion
Society
est
Pour Ilnstaflation sur le plancher cembustible
seulement
quand on utilise la base sp_ciale, piece
n° KGASB0201ALL
ou NAHA01101SB,
I'ensemble
serpentin,
pi_:e n ° CAR, CAP, CNPV, CNRV,
le carter de serpentin,
piece
POUR LA POSmON HORIZONTALE:
§
combustibles
tubing
for gas piping
is not approved
by the
state of Massachusetts.
Step 7 - Electrical
• US: National
• CANADA:
Electrical
Canadian
Connections
(?ode (NEC)
Electrical
ANSI/NFPA
(?ode CSA (722.1
70-2008
INTRODUCTION
Step 8 - Venting
• US: NFPA 54/ANSI Z223.1-2006
Chapters 12 and 13.
• CANADA: CAN/CSA-B149.1-05
Part 8 and Appendix C
MAX 80°F
(27 ° C)
The model 58MTB 4-way multipoise, Gas-Fired, Category IV,
condensing furnace is available in model sizes ranging from input
capacity of 60,000 to 120,000 Btuh as a direct vent (2-pipe)
application as well as a non-direct vent (1-pipe) application.
APPLICATIONS
MINOR
PROPERTY
DAMAGE
FRONT
Failure to follow this caution may result in minor property
damage.
MIN 60°F
(16o C)
Local codes may require a drain pan under entire furnace and
condensate trap when a condensing furnace is used in an attic
application or over a finished ceiling.
Step 1 - General
Fig. 4 - Return-Air
Temperature
A05004
ELECTROSTATIC
PRECAUTIONS
DISCHARGE
(ESD)
PROCEDURE
Some assembly and modifications
are required for furnaces
installed in any of the 4 applications shown in Fig. 1. All drain
and pressure tubes are connected as shown in Fig. 6. See
appropriate application instructions for these procedures.
Step 2 - Upflow Applications
In an upflow application, the blower is located below the burner
section, and conditioned air is discharged upwards.
CONDENSATE
TRAP LOCATION
(FACTORY-SHIPPED
UNIT
Failure
DAMAGE
to follow
HAZARD
this caution
may result
in damage
to unit
components.
Electrostatic
discharge
can affect electronic
components.
Take precautions
during furnace installation
and servicing to
protect
the furnace
electronic
control.
Precautions
will
prevent
electrostatic
discharges
from personnel
and hand
tools which are held during the procedure.
These precautions
will help to avoid exposing
the control
to electrostatic
discharge
by putting the furnace, the control, and the person
at the same electrostatic
potential.
1. Disconnect all power to the furnace. Multiple disconnects
may be required. DO NOT TOUCH THE CONTROL OR
ANY WIRE CONNECTED TO THE CONTROL PRIOR
TO DISCHARGING YOUR BODY'S ELECTROSTATIC
CHARGE TO GROUND.
2. Firmly touch the clean, unpainted, metal surface of the
furnace chassis which is close to the control. Tools held in
hand during grounding will be discharged.
3. After touching the chassis, you may proceed to service the
control or connecting wires as long as you do nothing to
recharge your body (moving or shuffling feet, touching
ungrounded objects, etc.).
4. If you touch ungrounded objects, firmly touch a clean,
unpainted metal surface of the furnace again before
touching control or wires.
5. Use this procedure
for installed
and uninstalled
(ungrounded) furnaces.
6. Before removing a new control from its container,
discharge your body's electrostatic charge to ground to
protect the control from damage. If the control is to be
installed in a furnace, follow items 1 through 4 before
bringing the control or yourself in contact with the
furnace. Put all used and new controls into containers
before touching ungrounded objects.
7. An ESD service kit (available from commercial
may also be used to prevent ESD damage.
sources)
ORIENTATION)
The condensate trap is factory installed in the blower shelf and
factory connected for UPFLOW applications. A factory-supplied
tube is used to extend the condensate trap drain connection to the
desired furnace side for field drain attachment. See Condensate
Trap Tubing (Factory-Shipped Orientation) section for drain tube
extension details. (See Fig. 5.)
CONDENSATE
TRAP TUBING
(FACTORY-SHIPPED
ORIENTATION)
NOTE: See Fig.6 or tube routing label on main furnace door to
confirm location of these tubes.
1. Collector Box Drain, Inducer Housing Drain, Relief Port,
and Pressure Switch Tubes
These tubes should be factory attached to condensate trap
and pressure switch ready for use in upflow applications.
These robes can be identified by their connection location
and also by a color label on each tube. These tubes are
identified as follows: collector box drain tube (blue label),
inducer housing drain tube (violet label or molded), relief
port tube (green label), and pressure switch tube (pink
label).
2. Condensate Trap Drain Tube
The condensate trap drain connection must be extended
for field attachment by doing the following:
f. Determine location of field drain connection. (See Fig.
2 or 6)
NOTE:
If internal filter or side Filter/Media Cabinet is used,
drain tube should be located to opposite side of casing from
return duct attachment to assist in filter removal.
g. Remove and discard casing drain hole plug button
from desired side.
h. Install drain tube coupling grommet (factory-supplied
in loose parts bag) in selected casing hole.
i. Slide drain tube coupling (factory-supplied in loose
parts bag) through grommet ensuring long end of
coupling faces blower.
BLOWER
SRELF
ACE ,--"CONDENSATE
,---CONDENSATE
\
/ TRAP
/TRAP(INSIDE)
"k
\
/
RNACE
DOOR
--
FURNACE -7
/
FURNACE
SIDE
S,Dy
4
102
146mm
T
26
FIELD
ALTERNATE DRAIN
TUBE LOCATION
CONDENSATETRAP-DRAINTUBE LOCATION
261/4
667 mm
3/4
19mm
38 mm
SIDE VIEW
END VIEW
FRONT VIEW
FRONT VIEW
HORIZONTAL
APPLICATIONS
DOWNFLOW AND ALTERNATE
EXTERNAL UPFLOW APPLICATIONS
UPFLOW APPLICATIONS
667mm
146mm
FIELD
DRAIN
CONN
1 /2
CONN
DRAIN
/4
_4
SLOT oO SO2fW
-7
/
1/40D
COLLECTOR BOX TO
TRAP RELIEF PORT
/
11/2 3Smm
1/2OD
INDUCER HOUSING
DRAIN CONNECTION
5/80D
COLLECTOR
BOX
DRAIN CONNECTION
__!/4
71/8
181
45 mm
SCREW HOLE FOR
UPFLOW OR DOWNFLOW APPLICATIONS
(OPTIONAL)
GUIDES
1/2-1N. PVC OR CPVC
(WHEN
USED)
FRONT VIEW
SIDE VIEW
A93026
Fig. 5 - Condensate
j. Cement
2 factory-supplied
1/2-in. (13 mm) street CPVC
elbows to the rigid drain tube connection on the
condensate trap. (See Fig. 6.) These elbows must be
cemented together and cemented to condensate trap drain
connection.
NOTE:
Failure
and prevent
to use CPVC
elbows
may allow
drain
to kink
draining.
k. Connect
supplied
larger diameter drain tube and clamp (factory
in loose parts bag) to condensate
trap and
clamp securely.
1. Route
tube to coupling
In. Attach
tube to coupling
CONDENSATE
UPFLOW
NOTE:
and cut to appropriate
location
Casing hole filler
when condensate
products
being
equipment room.
4. Install
trap
If the alternate
left-hand
is the left-hand
side of casing
Tubing
(Alternate
Upflow
Orientation)
attachment.
To relocate
condensate
trap
location
side
is used,
port tubes
must be
See Condensate
Trap
section
for tubing
to the left hand side,
the following:
1. Remove
3 tubes
connected
2. Remove
trap from
inward and rotating
3. Install
casing
blower
trap.
hole
parts bag) into blower
filler
shelf
to condensate
shelf
cap
(factory-supplied
hole where
this warning
could
HAZARD
result
in personal
injury
cap must be installed in blower shelf hole
trap is relocated
to prevent
combustion
drawn
in
from
appliances
in
the
condensate
trap
5. Fill unused condensate
caps (factory-supplied
CONDENSATE
UPFLOW
NOTE:
confirm
into left-hand
side casing
tabs
in loose
trap was removed.
NOTE:
between
trap casing holes with plastic
in loose parts bag).
TRAP TUBING
See Fig.7 or tube routing
location of these tubes.
filler
(ALTERNATE
label
on main furnace
door
to
Box Drain
Tube Connect
collector
condensate
trap.
pushing
hole by
hole and
ORIENTATION)
1. Collector
trap.
by gently
POISONING
inserting
tube connection
stubs through casing
rotating until tabs snap into locking position.
(See Fig. 2 and 7.)
the factory-connected
drain
and relief
disconnected
and modified
for attachment.
perform
Failure to follow
or death.
(ALTERNATE
for the condensate
MONOXIDE
length.
and clamp securely.
LOCATION
CARBON
ORIENTATION)
An alternate
of casing.
TRAP
Trap
On 17-1/2
corrugated
box
drain
tube
(blue
label)
to
in. (445 mm) wide furnaces ONLY, cut tube
sections to prevent kinks from occurring.
PLUG
PLUG
©
CAP
CAP
COLLECTOR
COLLECTOR
BOX
DRAIN TUBE (BLUE
&WHITE STRIPED)
DRAIN TUBE (BLUE
&WHITE STRIPED)
COLLECTOR
TUBE (PINK)
COLLECTOR BOX
TUBE (PINK) N
COLLECTOR BOX -TUBE (GREEN)
COLLECTOR BOX
TUBE (GREEN)
COLLECTOR
INDUCER
(MOLDED) DRAIN
TUBE (BEHIND
COLLECTOR BOX
DRAIN TUBE)
BOX --
DRAIN TUBE (BLUE)
O O
COLLECTOR
DRAIN TUBE (BLUE)
CONDENSATETRAP
.,.-,.*,,,.b__
INDUCER J
HOUSING
DRAIN TUBE
(VIOLET)
FACTORY-SUPPLIED
DRAIN TUBE
COUPLING (LEFT
DRAIN OPTION)
A01031
Fig. 7 - Alternate
FIELD-INSTALLED
FACTORY-SUPPLIED
DRAIN TUBE
PRESSURE
FIE LD-INSTALLED
FACTORY-SUPPLIED
%-IN. (13 mm) CPVC STREET
ELBOWS (2) FOR
LEFT DRAIN OPTION
FIELD- IN STALLED
FACTORY-SUPPLIED
DRAIN TUBE
COUPLING (RIGHT
DRAIN OPTION)
6 -
Factory-Shipped
(Shown
with
Blower
Upflow
Tube
Access
Panel
Housing
Drain
Removed)
Tube
a. Remove and discard LOWER (molded) inducer
housing drain tube which was previously
connected
condensate
trap.
b. Use inducer
housing
drain extension
tube (violet
condensate
to
d. Clamp
3. Relief
tube to prevent
length,
cut, and connect
any condensate
label
Upper Inducer
tube.
relief port tube (green
condensate
b. Extend
tube (factory-supplied
c. Determine
CONDENSATE
to
trap.
this tube (if required)
diameter
label)
appropriate
TRAP
length,
FIELD
by splicing
in loose
parts bag).
tube.
to
Condensate
Housing Drain Connection
Refer
to
Condensate
Drain
recommendations and procedures.
DRAIN
ATTACHMENT
Refer
Step 3 - Downflow
Drain
section
for
is a
NOTE: See Fig.6 or 7 or tube routing label on main furnace door
to check for proper connections.
CONDENSATE
TRAP FREEZE
PROTECTION
to small
cut, and connect
CONNECTIONS
Attached
to the UPPER (unused) inducer
housing drain
connection is a cap and clamp. This cap is used to prevent
condensate leakage in this application. Ensure this connection
is capped.
leakage.
Port Tube
a. Connect
DRAIN
factory-installed corrugated, plugged tube (blue and white striped
label). This tube is plugged to prevent condensate leakage in this
application. Ensure this tube is plugged.
NOTE: See Fig.6 or 7 or tube routing label on main furnace door
to check for proper connections.
trap.
appropriate
(UNUSED)
Upper Collector Box Drain Connection
Attached to the UPPER collector box drain connection
and factory-supplied
in loose parts bag) to connect
LOWER inducer housing drain connection
to the
c. Determine
TUBING
NOTE:
See Fig.6 or 7 or tube routing label on main furnace
door to check for proper connections.
UPPER COLLECTOR
BOX AND INDUCER
Configuration
HOUSING
2. Inducer
SWITCH
and Trap Location
The LOWER collector box pressure tube (pink label) is factory
connected to the High Pressure Switch and should not require
any modification.
A01030
Fig.
Upflow Configuration
recommendations
Protection
section
for
Applications
In a downflow furnace application, the blower is located above
the burner section, and conditioned air is discharged downwards.
CONDENSATE
TRAP LOCATION
and procedures.
The condensate trap must be removed from the factory-installed
blower shelf location and relocated in selected application
location as shown in Fig. 2, 8, or 9.
10
CC
DRAIN TUBE (BLUE)
COLLECTOR
TUBE (GREEN)
O
COLLECTOR
EXTENSION TUBE
BOX
DRAIN TUBE (BLUE)
O
BOX
COLLECTOR
TUBE (PINK)
TUBE (PINK)
)R BOX
TUBE (GREEN)
)R BOX
EXTENSION TUBE
DRAIN TUBE (BLUE
& WHITE STRIPED)
BOX
DRAIN TUBE (BLUE
& WHITE STRIPED)
COLLECTOR BOX_
EXTENSION TUBE
)R BOX
EXTENSION TUBE
INDUCER HOUSING
DRAIN TUBE
(VIOLET)
TRAP
©
©
TRAP
)R BOX
EXTENSION
DRAINTUBE
INDUCER HOUSING
DRAIN TUBE (VIOLET)
'DRAIN TUBE 8
COUPLING
"_
A01023
Fig. 8 - Downflow
(Left-Hand
To relocate
location,
condensate
perform
1. Remove
Trap
trap
A01024
Configuration
Fig. 9 - Downflow
Installation)
from
the
(Right-Hand
blower
shelf
3 tubes
connected
casing
to condensate
blower
trap.
shelf
trap.
by gently
hole filler cap from casing
pushing
tabs
casing
hole filler
cap into blower
Trap
Configuration
Installation)
(3.) Condensate Trap Located on Left Side of Casing
hole.
a. Connect LOWER collector box drain tube (blue
and white striped label) to condensate trap.
Tube does not need to be cut.
(See Fig. 2, 8, or 9.)
4. Install
Tube
b. Install removed clamp and plug into UPPER collector
box drain tube (blue label) which was connected to
condensate trap.
c. Connect LOWER collector box drain connection to
condensate trap.
to desired
the following:
2. Remove
trap from
inward and rotating
3. Remove
Tube
shelf hole where
trap was removed.
b. Clamp tube to prevent any condensate leakage.
(4.) Condensate Trap Located on Right Side of Casing
CARBON
MONOXIDE
POISONING
could
a. Install drain tube coupling (factory-supplied in
loose parts bag) into collector box drain tube
(blue and white striped label) which was
previously plugged.
b. Connect
larger
diameter
drain
tube
(factory-supplied in loose parts bag) to drain
tube coupling, extending collector box drain
tube for connection to condensate trap.
c. Route extended
collector
box drain tube
directly from collector box drain to condensate
trap as shown in Fig. 9.
HAZARD
Failure to follow
or death.
this warning
result
in personal
injury
Casing hole filler
when condensate
products
being
equipment room.
cap must be installed in blower shelf hole
trap is relocated
to prevent
combustion
drawn
in
from
appliances
in
the
5. Install condensate trap into desired casing hole by
inserting tube connection stubs through casing hole and
rotating until tabs snap into locking position.
CONDENSATE
TRAP TUBING
d. Determine appropriate length and cut.
e. Connect to condensate trap.
f. Clamp tube to prevent any condensate leakage.
NOTE: See Fig. 8 or 9 or robe routing label on main fi_rnace
door to check for proper connections.
Relocate robes as described below.
2. Inducer Housing Drain Tube
a. Remove factory-installed cap and clamp from LOWER
inducer housing drain connection.
1. Collector Box Drain Tube
b. Remove and discard UPPER (molded) inducer housing
drain tube which was previously connected to
condensate trap.
a. Remove factory-installed plug from LOWER collector
box drain tube (blue and white striped label).
c. Install cap and clamp on UPPER inducer housing drain
connection where molded drain tube was removed.
11
d. Use inducer housing drain tube (violet label and
factory-supplied in loose parts bag) to connect
LOWER inducer housing drain connection to the
condensate trap.
Step 4 - Horizontal
Applications
CONDENSATE
(1.) Condensate Trap Located on Left Side of Casing
a. Determine appropriate length and cut.
The
c. Clamp tube to prevent any condensate leakage.
(2.) Condensate Trap Located on Right Side of Casing
4. Install
Drain
NOTE:
check
section
by
POISONING
this warning
to desired
trap.
gently
pushing
tabs
could
HAZARD
result
in personal
trap
into left-hand
condensate
TRAP
trap casing
in loose
side casing
holes
hole by
hole and
with plastic
filler
parts bag).
TUBING
See Fig. 10 or tube routing
for proper
injury
cap must be installed in blower shelf hole
trap is relocated
to prevent
combustion
drawn
in
from
appliances
in
the
condensate
label on main furnace
door to
connections.
1. Collector
Box Drain
a. Install
Tube
drain tube coupling
(factory-supplied
in loose
parts bag) into collector box drain tube (blue label)
which was previously
connected
to condensate
trap.
b. Connect
large
diameter
drain tube and clamp
(factory-supplied
in loose parts bag) to drain tube
coupling,
extending
collector box drain tube.
c. Route extended tube (blue label)
and cut to appropriate
length.
d. Clamp
2. Inducer
tube to prevent
Housing
a. Remove
Drain
and discard
b. Use inducer housing
and factory-supplied
for
LOWER inducer
condensate
trap.
and procedures.
c. Determine
d. Clamp
any condensate
LOWER
12
appropriate
trap
leakage.
(molded)
inducer
was previously
connected
to
drain extension tube (violet label
in loose parts bag) to connect
housing
tube to prevent
to condensate
Tube
housing drain tube which
condensate
trap.
PROTECTION
Protection
MONOXIDE
CONDENSATE
tube to relief port connection.
Condensate
shelf
to condensate
shelf
application
trap.
caps (factory-supplied
4. Extend collector box pressure tube (pink label) which was
previously connected to High Pressure Switch by splicing
to remaining small diameter tube (factory-supplied
in
loose parts bag).
5. Route this extended robe (pink label) to condensate trap
relief port connection.
6.
Determine appropriate length, cut, and connect tube.
to
the factory-installed
selected
the blower
blower
and rotating
5. Fill unused
3. Connect collector box pressure tube (green label) to High
Pressure Switch connection labeled COLLECTOR BOX.
recommendations
from
in
inserting
tube connection
stubs through casing
rotating until tabs snap into locking position.
1. Disconnect
collector box pressure tube (pink label)
attached to High Pressure Switch.
2. Extend collector box pressure tube (green label) which
was previously connected to condensate trap relief port
connection
by
splicing
to small
diameter
tube
(factory-supplied in loose parts bag).
Refer
trap
Casing hole filler
when condensate
products
being
equipment room.
TUBING
FREEZE
3 tubes connected
Failure to follow
or death.
recommendations
NOTE: See Fig. 8 or 9 or robe routing label on main furnace
door to check for proper connections.
TRAP
1. Remove
2. Remove
CARBON
One collector box pressure tube (pink label) is factory connected
to the High Pressure Switch for use when furnace is installed in
upflow applications. This tube MUST be disconnected and used
for the condensate trap relief port tube. The other collector box
pressure tube (green label) which was factory connected to the
condensate trap relief port connection MUST be connected to the
High Pressure Switch in DOWNFLOW
or HORIZONTAL
RIGHT applications
CONDENSATE
from
3. Install casing hole filler cap (factory-supplied
in loose
parts bag) into blower shelf hole where trap was removed.
d. Clamp tube to prevent any condensate leakage.
3. Relief Port Tube Refer to Pressure Switch Tubing section
for connection procedure.
CONDENSATE
TRAP FIELD DRAIN
ATTACHMENT
7. Clamp
must be removed
shelf location
and relocated
as shown in Fig. 2 or 10.
inward
c. Connect tube to condensate trap.
for
trap
LOCATION
To relocate
condensate
trap from
location,
perform the following:
a. Route inducer housing drain tube (violet label)
directly from inducer housing to condensate
trap as shown in Fig. 9.
b. Determine appropriate length and cut.
section
TRAP
condensate
blower
location
b. Connect tube to condensate trap.
Drain
Discharge)
In a horizontal
left furnace application,
the blower is located to
the right of the burner section, and conditioned
air is discharged
to the left.
e. Connect inducer housing drain connection to
condensate trap.
Refer to Condensate
and procedures.
PRESSURE
SWITCH
Left (Supply-Air
drain
length,
connection
to the
cut, and connect
any condensate
leakage.
tube.
PLUG --
AUXILIARY
"J" BOX
COLLECTOR BOX
DRAIN TUBE
(BLUE AND WHITE STRIPED)
_t
I
CAP
_
O
O
CONDENSATE
TRAP
COLLECTC
BOX EXTENSION
DRAIN TUBE
COLLECTOR BOX
UCER HOUSING
DRAIN TUBE (VIOLET)
\
\\
\_'\
COLLECTOR BOX
DRAIN TUBE (BLUE)
EXTE.S,O. O E
DRAINTUBE COUPLING _
%.
COLLECTOR BOX TUBE (PINK)
RELOCATE TUBE BETWEEN
BLOWER SHELF AND INDUCER HOUSING FOR
040,060, AND 080 HEATING INPUT FURNACES
A01029
Fig. 10 - Horizontal
Left Tube
3. Relief Port Tube
4. Determine appropriate length, cut, and reconnect tube to
High
Pressure
Switch
connection
labeled
COLLECTOR BOX.
a. Extend collector box tube (green label) which was
previously connected to the condensate trap by splicing
to small diameter tube (factory-supplied in loose parts
bag).
b. Route extended collector box pressure tube to relief
port connection on the condensate trap.
c. Determine appropriate length, cut, and connect tube.
CONDENSATE
for recommendations
TRAP
FREEZE
PROTECTION
Refer
to
Condensate
Drain
Protection
recommendations and procedures.
CONSTRUCT
A WORKING
PLATFORM
section
for
Construct working platform where all required furnace clearances
are met. (See Fig. 3 and 11 or 12.)
d. Clamp tube to prevent any condensate leakage.
CONDENSATE
TRAP FIELD DRAIN
ATTACHMENTS
Refer to Condensate Drain section
procedures.
PRESSURE
SWITCH
TUBING
Configuration
and
UNIT
MAY
NOT
OPERATE
Failure to follow
unit operation.
The LOWER collector box pressure tube (pink label) is factory
connected to the High Pressure Switch for use when furnace is
installed in UPFLOW
applications.
This tube MUST be
disconnected, extended, rerouted, and then reconnected to the
pressure switch in HORIZONTAL LEFT applications for 060 and
080 heating input furnaces.
NOTE: See Fig. 10 or tube routing label on main furnace door to
check for proper connections.
Modify tube as described below:
this caution
may result in intermittent
The condensate trap MUST be installed below furnace. See
Fig. 5 for dimensions. The drain connection to condensate trap
must also be properly sloped to an open drain.
NOTE:
Combustion-air
and vent pipes are restricted
minimum length of 5 ft. (2 M)(See Table 13.)
to a
NOTE:
A 12-in. (305 mm) minimum offset pipe section is
recommended with short (5 to 8 ft or 2 to 3 M)) vent systems.
This recommendation is to reduce excessive condensate droplets
from exiting the vent pipe. (See Fig. 11, 12 or 43.)
1. Disconnect
collector box pressure tube (pink label)
attached to High Pressure Switch.
2. Use smaller diameter tube (factory-supplied in loose parts
bag) to extend tube disconnected in item 1.
3. Route extended tube:
Step 5 - Horizontal
Applications
Right (Supply-Air
Discharge)
In a horizontal right furnace application, the blower is located to
the left of the burner section, and conditioned air is discharged to
the right.
a. Behind inducer housing.
b. Between blower shelf and inducer housing.
13
COMBUSTION INTAKE
A 12-1N. (305 mm) MIN HORIZONTAL PIPE
SECTION IS RECOMMENDED WITH
SHORT (5 TO 8 FT / 1.5 TO 2.4 M) VENT
SYSTEMS TO REDUCE EXCESSIVE
CONDENSATE DROPLETS FROM
EXITING THE VENT PIPE.
30" (762 mm)MIN
(146 mm)
MAN1
SHUTOFF
GAS VALVE
ACCESS OPENING
FOR TRAP
DRAIN
SEDIMENT
TRAP
CONDENSATE
TRAP
NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE
FURNACE AND CONDENSATE TRAP WHEN A CONDENSING
FURNACE IS INSTALLED ABOVE FINISHED CEILINGS.
A93031
Fig. 11 - Attic
MINOR
Location
this caution
may
result
in minor
Local codes may require a drain pan under
condensate
trap when a condensing
furnace
application
or over a finished ceiling.
The
to opposite
Connection
Platform
PROPERTY DAMAGE
Failure to follow
damage.
NOTE:
and Working
auxiliary
junction
box (J-Box)
MUST
CONDENSATE
TRAP
Vent
CARBON
MONOXIDE
property
blower
location
trap must
shelf location
and relocated
as shown in Fig. 2 or 13.
To relocate
condensate
trap from
location, perform the following:
1. Remove
2. Remove
inward
3 tubes
trap
connected
from
and rotating
blower
the
in
the factory-installed
selected
blower
to condensate
shelf
HAZARD
result
in personal
injury
cap must be installed in blower shelf hole
trap is relocated
to prevent
combustion
drawn
in
from
appliances
in
the
until
CONDENSATE
NOTE:
to desired
check
for proper
a. Remove
tabs
in loose
TRAP
b. Install
3. Install
casing hole filler cap (factory-supplied
in loose
parts bag) into blower shelf hole where trap was removed.
holes
with plastic
filler
parts bag).
TUBING
label on main furnace
door to
connections.
Box Drain
Tube:
factory-installed
box drain tube (blue
trap.
position.
trap casing
See Fig. 13 or tube routing
1. Collector
trap.
pushing
tabs snap into locking
condensate
caps (factory-supplied
application
shelf
by gently
could
4. Install condensate
trap into right-hand
side casing hole by
inserting
tube connection
stubs through casing hole and
rotating
from
POISONING
be relocated
13.) See Electrical
LOCATION
be removed
Applications
this warning
Casing hole filler
when condensate
products
being
equipment room.
5. Fill unused
The condensate
(2-Pipe)
Failure to follow
or death.
entire furnace and
is used in an attic
side of furnace casing. (See Fig.
section for J-Box relocation.
for Direct
removed
clamp
plug from LOWER
and white
striped
and plug into UPPER
box drain tube (blue label) which
connected
to condensate
trap.
collector
label).
collector
was previously
c. Connect LOWER collector box drain tube (blue and
white striped label) to condensate
trap. Tube does not
need to be cut.
d. Clamp
14
tube to prevent
any condensate
leakage.
A 3-1N.(76mm) MINIMUM CLEARANCE
TO COMBUSTION-AIR
INTAKE
IS REQUIRED.
COMBUSTION
INTAKE
A 12-IN. (305mm) MIN HORIZONTAL PIPE
SECTION IS RECOMMENDED WITH
SHORT (5 TO 8 FT / 1.5 TO 2.4M) VENT
TO REDUCE EXCESSIVE
CONDENSATE DROPLETS FROM
EXITING THE VENT PIPE.
30-1N.(762mm)
WORKAREA
MIN
IN. (146mm)
MAN[
SHUTOFF
GAS VALVE
ACCESS OPENING
FOR TRAP
DRAIN
SEDIMENT
TRAP
CONDENSATE
TRAP
NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE
FURNACE AND CONDENSATE TRAP WHEN A CONDENSING
FURNACE IS INSTALLED ABOVE FINISHED CEILINGS.
A96184
Fig. 12 - Attic Location and Working
2. Inducer
Housing
a. Remove
Drain
Tube:
factory-installed
inducer
housing
Platform for Non-Direct Vent (1-pipe) Applications
NOTE:
check
cap and clamp from LOWER
Relocate
drain connection.
b. Remove and discard UPPER (molded) inducer housing
drain tube which was previously
connected
to
condensate
trap.
condensate
f. Clamp
3. Connect
Pressure
4. Use
length,
cut, and connect
tube to
3. Relief
Port Tube:
Refer
to Pressure
any condensate
Tubing
section
leakage.
Refer
to
6. Clamp
TRAP
Condensate
FIELD
Drain
DRAIN
section
ATTACHMENT
for
CONDENSATE
recommendations
Refer
and procedures.
PRESSURE
to
recommendations
SWITCH
TUBING
CONSTRUCT
One collector box pressure tube (pink label) is factory connected
to the High Pressure Switch for use when furnace is installed
in
UPFLOW
applications.
used for the condensate
splicing
to
small
in loose parts bag).
smaller
diameter
(pink
label)
This tube MUST be disconnected
and
trap relief port tube. The other collector
applications.
15
diameter
trap relief
TRAP
Condensate
to High
BOX.
in
box pressure
tube
connected
to High
tube (pink label) to
port connection.
appropriate
tube to relief
tube
tube (factory-supplied
length,
cut, and connect
tube.
port connection.
FREEZE
Drain
PROTECTION
Protection
section
for
and procedures.
A WORKING
PLATFORM
Construct working platform where all required
are met. (See Fig. 3 and 11 or 12.)
box pressure
tube (green label) which was factory connected
to
the condensate
trap relief port connection
MUST be connected
to
the High Pressure
Switch in DOWNFLOW
or HORIZONTAL
RIGHT
remaining
5. Determine
for connection
procedure.
CONDENSATE
tube
collector
box pressure tube (green label)
Switch connection
labeled COLLECTOR
condensate
Switch
below.
loose parts bag) to extend collector
(pink label) which
was previously
Pressure Switch. Route this extended
trap.
tube to prevent
as described
connection
by
(factory-supplied
trap.
appropriate
door to
2. Extend
collector
box pressure
tube (green label) which
was previously
connected
to condensate
trap relief port
d. Use inducer housing drain extension tube (violet label
and factory-supplied
in loose parts bag) to connect
LOWER inducer housing drain connection
to
condensate
tubes
label on main furnace
connections.
1. Disconnect
collector
box
pressure
attached to High Pressure Switch.
c. Install cap and clamp on UPPER inducer housing drain
connection
where molded drain tube was removed.
e. Determine
See Fig. 12 or tube routing
for proper
furnace
clearances
COLLECTOR
BOX DRAIN TUBE (BLUE)
COLLECTOR
BOX TU BE (GREEN)
BOX EXTENSION TUBE
PLUG
COLLECTOR
BOXTUBE (PINK)
"J" BOX RELOCATED
HERE
TRAP
COLLECTOR BOX DRAIN TUBE
(BLUE AND WHITE STRIPED)
INDUCER HOUSING
DRAINTUBE(VIOLET)
COLLECTOR BOX
EXTENSION TUBE
A01028
Fig. 13 - Horizontal
Right
Tube Configuration
shown
on the furnace
NOTE:
Failure
to follow
unit operation.
this
furnace
caution
may
result
in
intermittent
mm)
Combustion-air
are restricted
NOTE:
pipe (when
to a minimum
A 12-in.
(305
length
mm)
applicable)
minimum
offset
pipe
furnace,
furnace
wood flooring
• be located
directly
so combustion-air
where
meet specifications
• be attached
Refer
to the center
are protected
electric
of the distribution
air must
The ducts
also be
terminate
power
system
secondary
lengths
.
plate.
exchangers.
by ducts
the space
condition
air
the
sealed
to
containing
will not occur
result
in fire, property
L_
as possible.
for servicing
FRONT
as close
Refer to Air
I_"MAX
(6to13mm)
UPFLOW OR DOWNFLOW
with ample space
(6
to ensure
supply
ducts carry
the space containing
handled
outside
F
and be located
Ducts section.
• be provided
heat
1/4-in.
and gas supplies
rating
system
pitch
forward
other than
13.
on the furnace
so that
Do not install furnace on its back. (See Fig. 15.) Safety control
operation will be adversely
affected. Never connect return-air
ducts to back of furnace.
from water.
material
and vent pipe maximum
to an air distribution
return
casing.
CONSIDERATIONS).
to Table
available
from
Failure to follow this warning
could
damage, personal injury, or death.
on any combustible
(refer to SAFETY
are not exceeded.
• be located
components
applications
(13 mm) maximum
drainage
furnace
(13 mm) for proper
FIRE, INJURY OR DEATH HAZARD
must
so the electrical
install
1/2-in.
is
Step 1 - General
• not be installed
horizontal
label.
This
from
LOCATION
• be installed
within
the furnace to ensure a negative pressure
within equipment
room or space.
the vent pipe. (See Fig. 11, 12 or 43.)
This furnace
For
to 1/2-in.
condensate
applications
forward
When
a furnace
is installed
so that
circulated by the furnace to areas outside
13.)
section
recommended
with short (5 to 8 ft or 2 to 3 M) vent systems.
recommendation
is to reduce excessive
condensate
droplets
exiting
operation.
to combustibles
(See Fig. 14.)
and vent pipe(s)
of 5 ft. (2 M). (See Table
or pitched
minimum
proper
The condensate
trap MUST be installed below furnace. See
Fig. 5 for dimensions.
The drain connection
to condensate
trap must also be properly sloped to an open drain.
NOTE:
For upflow/downflow
it is level
UNIT MAY NOT OPERATE
clearance
HORIZONTAL
and cleaning.
A02146
Always
comply
with minimum
fire protection
clearances
Fig. 14 - Proper Condensate
16
Drainage
UNIT DAMAGE
This gas fllmace
HAZARD
may be used for construction
heat provided
that:
-The
furnace
is permanently
installed
with all electrical
wiring,
piping,
air filters,
venting
and ducting
installed
according
to these installation
instructions.
A return air duct
is provided,
sealed
to the furnace
casing,
and terminated
outside
the space containing
the furnace.
This prevents
a
negative
pressure
condition
as created by the circulating
air
blower, causing a flame rollout and/ or drawing combustion
products into the structure.
BACK
-The furnace is controlled
by a thermostat.
It may not be "hot
wired" to provide heat continuously
to the structure
without
thermostatic
control.
-Clean
outside
air is provided
for combustion.
This is to
minimize
the corrosive
effects of adhesives,
sealers and other
construction
materials.
It also prevents
the entrainment
of
drywall
dust into combustion
air, which can cause fouling
and plugging of furnace components.
A93043
Fig. 15 - Prohibit
Step 3 - Hazardous
-The
temperature
of the return
air to the furnace
is
maintained
between
55°F (13°C) and 80°F (27°C), with no
evening
setback or shutdown.
The use of the furnace while
the structure
is under
construction
is deemed
to be
intermittent
operation
-The air temperature
furnace rating plate,
nameplate
value.
per our installation
Improper location
or explosion.
rise is within the rated rise range on the
and the firing rate has been set to the
-The furnace, ductwork
and filters are cleaned as necessary
to remove
drywall
dust and construction
debris from all
HVAC system components
after construction
is completed.
NSCNGPIC.
- After construction
is complete,
verify furnace
operating
conditions
including
ignition, input rate, temperature
rise and
venting, according to the manufacturer's
instructions.
Step 4
DIRECT
Furnace
provisions
DAMAGE
Failure to follow
unit damage.
protection
could result
in fire
(See Fig. 17.)
Furnace
Location
and Application
VENT (2-PIPE) APPLICATION
may
be
located
for dilution
in a confined
or ventilation
space
without
special
air.
HAZARD
this caution
may result
in minor
property
If this furnace is installed
in an unconditioned
space
the ambient temperatures
may be 32°F (0°C)or lower,
protection
measures must be taken. (See Fig. 16.)
Step 2 - Furnace
Equipment
INJURY OR DEATH HAZARD
or inadequate
When the furnace
is installed
in a residential
garage,
the
burners and ignition sources must be located at least 18 in.
(457 mm) above the floor. The furnace must be located or
protected
to avoid physical
damage by vehicles. When the
furnace is installed in a public garage, airplane hangar, or other
building having a hazardous
atmosphere,
the furnace must be
installed in accordance
with current edition of the NFGC or
-The filters
used to clean the circulating
air during
the
construction
process must be either changed
or thoroughly
cleaned prior to occupancy.
UNIT
on Back
Locations
FIRE, EXPLOSION,
instructions.
Installation
Location
Relative
or
where
freeze
to Cooling
32 ° F/0 ° C MINIMUM INSTALLED
AMBIENT OR FREEZE
PROTECTION REQUIRED
The cooling coil must be installed parallel with or on downstream
side of furnace to avoid condensation
in heat exchanger.
When
installed parallel with a furnace, dampers or other means used to
control flow of air shall be adequate
to prevent chilled air from
entering furnace. If dampers are manually
operated, they must be
equipped with a means to prevent operation
of either unit unless
the damper is in full-heat or full-cool position.
/\
/
A07911
Fig. 16 - Freeze
17
Protection
If air is exposed
to the following
substances,
used for combustion
air, and outdoor
air
for combustion:
• Permanent
wave
• Chlorinated
• Chlorine
swimming
chemicals
salts or chemicals
type refrigerants
• Cleaning
solvents
• Printing
• Cements
NON-DIRECT
UNIT
VENT
DAMAGE
not
install
atmosphere.
requirements
Refer
section
this
furnace
in
Make sure
are met.
to the AIR
FOR
all
may
a
result
corrosive
combustion
COMBUSTION
in
or
AND
COMBUSTION
circulating
CARBON
air
for adequate
combustion,
AND
and dilution
air
must be provided in accordance
with:
• U.S. Installations:
Section 9.5 of the NFPA 54/ANSI
Z223.1-2006,
applicable
Air for Combustion
provisions
• Canadian
of the local building
Installations:
Venting
Systems
authorities
having
and Ventilation
and
codes.
for Appliances
burner
and all
jurisdiction.
• Spaces
POISONING
this warning
could
having
CORROSION
Failure to follow
component
life.
this warning
Outdoor
HAZARD
could result
cleaning
products.
in reduced
solvents,
The following
types
of furnace
installations
OUTDOOR
AIR for combustion
due to chemical
• Commercial
• Buildings
furnace
• Laundry
• Hobby
• Chemical
salts,
2.
air
storage
draft
HAZARD
result
in personal
injury
AIR, STANDARD
METHOD.
or
Air Method
Fig.
18 illustrates
OPENINGS,
one
how to provide
TWO
OUTDOOR
inlet and one outlet combustion
and
air openings
to the outdoors.
a. One opening MUST commence
within 12 in.(305
of the ceiling and the second opening MUST
commence
within 12 in. (305 mm) of the floor.
may
require
exposures:
b. Size openings
and ducts per Fig. 18 and Table
mm)
1.
c. TWO HORIZONTAL
DUCTS require 1 square inch of
free area per 2,000 Btt h (1,100 mm 2 /kW) of combined
input for all gas appliances
in the space per Fig. 18 and
Table 1.
pools
rooms
or craft rooms,
Combustion
ventilation
buildings
with indoor
from
Provide
the
space
with
sufficient
air
for
proper
combustion,
ventilation,
and dilution of flue gases using
permanent
horizontal
or vertical
duct(s)
or opening(s)
directly
communicating
with the outdoors or spaces that
freely communicate
with the outdoors.
Air for combustion
must not be contaminated
by halogen
compounds,
which include fluoride, chloride,
bromide,
and
iodide. These elements
could corrode heat exchangers
and
shorten furnace life. Air contaminants
are found in aerosol
sprays,
detergents,
bleaches,
fresheners, and other household
and
at least 50 cubic feet per 1,000 Btuh may use
the INDOOR COMBUSTION
KNOWN
AIR INFILTRATION
FURNACE
area
The requirements
for combustion
and ventilation
air depend upon
whether or not the furnace is located in a space having a volume
of at least 50 cubic feet per 1,000 Btuh input rating for all gas
appliances installed in the space.
• Spaces having less than 50 cubic feet per 1,000 Btuh require
the OUTDOOR
COMBUSTION
AIR METHOD.
Part 8 of the CAN/CSA-B149.1-05,
and Air Supply
the
for fuel
negative
must be
duct to
The operation of exhaust fans, kitchen ventilation fans, clothes
dryers, attic exhaust fans or fireplaces could create a
NEGATIVE PRESSURE
CONDITION
at the furnace.
Make-up air MUST be provided for the ventilation devices, in
addition to that required by the furnace. Refer to the Carbon
Monoxide Poisoning Hazard warning in the venting section of
these instructions to determine if an adequate amount of
make-up air is available.
VENTILATION
ventilation,
from
MONOXIDE
Failure to follow
or death.
VENTILATION
Provisions
dryers
intermittent
contaminated
and
for clothes
materials
All fuel-burning
equipment
must be supplied
with air
combustion.
Sufficient
air must be provided
to avoid
pressure in the equipment
room or space. A positive seal
made between
the furnace
cabinet
and the return-air
APPLICATION
for details.
AIR FOR
acid washing
prevent
pulling
air
safeguard
opening.
caution
etc.
acid
fabric softeners
• Masonry
HAZARD
Failure
to follow
unit operation.
Do
(1-PIPE)
varnishes,
and glues
• Antistatic
A93044
(such as perchloroethylene)
inks, paint removers,
• Hydrochloric
in a Garage
pool chemicals
tetrachloride
• Halogen
Fig. 17 - Installation
and cleaners
based
• Carbon
18-1N.
(457.2
mm)
MINIMUM
TOBURNERS
solutions
waxes
• Water softening
• De-icing
it should not be
may be required
and
areas
18
Table
1-
FURNACE
INPUT
(BTUH)
Minimum
Free Area Required for Each Combustion
Air Opening
or Duct to Outdoors
TWO HORIZONTAL DUCTS
SINGLE DUCT OR OPENING
TWO OPENINGS OR VERTICAL DUCTS
(1 SQ. INJ2,000 BTUH) (1,100SQ. MM/KW)
(1 SQ. IN./3,000 BTUH) (734 SQ. MM/K3/V)
(1 SQ. IN./4,000 BTUH) (550 SQ. MM/KW)
Free Area of
Round Duct
Free Area of Opening
Round Duct
Free Area of Opening
Round Duct
Opening and Duct
Dia.
and Duct
Dia.
and Duct
Dia.
Sq. In. (mm)
In. (mm)
Sq. In (mm)
In. (mm)
Sq. In (mm)
In. (mm)
44,000
22 (14194)
6 (152)
14.7 (9494)
5 (127)
11 (7097)
4 (102)
66,000
33 (21290)
7 (178)
22 (14193)
6 (152)
16.5 (10645)
5 (127)
88,000
110,000
44 (28387)
55 (35484)
8 (203)
9 (229)
29.3 (18903)
36.7 (23677)
7 (178)
7 (178)
22 (14193)
27.5 (17741)
6 (152)
6 (152)
132,000
66 (42581)
10 (254)
44 (28387)
8 (203)
33 (21290)
7 (198)
154,000
77 (49677)
10 (254)
51.3 (33096)
9 (229)
38.5 (24838)
8 (203)
EXAMPLE:
Determining
FURNACE
Free Area
WATER HEATER
TOTAL INPUT
110,000
+
30,000
=
(140,000 divided by 4,000)
=
66,000
+
40,000
=
(106,000 divided by 3,000)
=
88,000
+
30,000
=
(118,000 divided by 2,000)
=
Table
2 - Minimum
Space
Volumes
for 100%
Combustion,
!
40
!
35.3 Sq. In. for a Single Duct or Opening
59.0 Sq. In. for each of two Horizontal
Ventilation
OTHER THAN FAN-ASSISTED TOTAL
(1,000'S BTUH GAS INPUT RATE)
30
35.0 Sq. In. for each two Vertical Ducts or Openings
and Dilution
Air from
Ducts
Outdoors
FAN-ASSISTED TOTAL
(1,000'S BTUH GAS INPUT RATE)
50
44
ACH
!
66
!
88
Space Volume Ft3 (M 3)
!
110
!
132
!
154
0.60
1,050
(29.7)
1,400
(39.6)
1,750
(49.5)
1,100
(31.1)
1,650
(46.7)
2,200
(62.2)
2,750
(77.8)
3,300
(93.4)
3,850
(109.0)
0.50
1,260
(35.6)
1,680
(47.5)
2,100
(59.4)
1,320
(37.3)
1,980
(56.0)
2,640
(74.7)
3,300
(93.4)
3,960
(112.1)
4,620
(130.8)
0.40
1,575
(44.5)
2,100
(59.4)
2,625
(74.3)
1,650
(46.7)
2,475
(70.0)
3,300
(93.4)
4,125
(116.8)
4,950
(140.1)
5,775
(163.5)
0.30
2,100
(59.4)
2,800
(79.2)
3,500
(99.1)
2,200
(62.2)
3,300
(93.4)
4,400
(124.5)
5,500
(155.7)
6,600
(186.8)
7,700
(218.0)
0.20
3,150
(89.1)
4,200
(118.9)
5,250
(148.6)
3,300
(93.4)
4,950
(140.1)
6,600
(186.8)
8,250
(233.6)
9,900
(280.3)
11,550
(327.0)
O.10
6,300
(178.3)
8,400
(237.8)
10,500
(297.3)
6,600
(186.8)
9,900
(280.3)
13,200
(373.7)
16,500
(467.2)
19,800
(560.6)
23,100
(654.1)
0.00
NP
NP
NP
NP
NP
NP
NP
NP
NP
Indoor
d. TWO OPENINGS
OR VERTICAL
DUCTS require 1
square inch of free area per 4,000 Btuh (550 mm2/kW)
for combined input of all gas appliances
in the space
per Fig. 18 and Table 1.
3. ONE OUTDOOR
OPENING
requires:
The Standard
1 and 13.
2. The
POISONING
Failure to supply outdoor air via grilles
death and/or personal injury.
Rate
Methods
and
rate is not known
1. Less
than 0.40 ACH
2. Equal
to or greater
Infiltration
minimum
to be less than 0.40
per hour (ACH).
The Known Air Infiltration
Rate
infiltration
rate is known to be:
through a vertical or horizontal
duct to
or spaces (crawl or attic) that freely
with the outdoors.
MONOXIDE
in the space
air infiltration
air changes
back and 6 in. (152 mm) from the front. The opening
shall directly communicate
with the outdoors or shall
CARBON
& AGA
Method:
installed
in the space.
The opening shall commence
within 12 in. (305 mm)
of the ceiling. Appliances
in the space shall have
clearances
of at least 1 in. (25 mm) from the sides and
communicate
the outdoors
communicate
NFPA
1. The space has no less volume than 50 cubic feet per 1,000
Btuh of the maximum
input ratings for all gas appliances
b. Not less than the sum of the areas of all vent
connectors
Air©
and Known-Air-Infiltration
Indoor
combustion
air is permitted
for combustion,
ventilation,
and dilution, if the Standard
or Known-Air-Infiltration
Rate
Method is used.
a. 1 square inch of free area per 3,000 Btuh (734 mm2/kW)
for combined input of all gas appliances
in the space
per Table
Combustion
Standard
Method
shall be used,
if the
and
than 0.10 ACH
rates greater than 0.60 ACH shall not be used. The
required volume of the space varies with the number of
ACH and shall be determined
per Table 2 or Equations
1 and 2.
Determine
the minimum
required
volume for each appliance
in
the space and add the volumes together to get the total minimum
HAZARD
required
or ducts could result in
Table
volume
for the space.
2 - Minimum
Space
Volumes
were
the following
equations
from the National
Z223.1-2006/NFPA
54-2006,9.3.2.2:
Many homes require air to be supplied
from outdoors
for
furnace combustion,
ventilation,
and dilution of flue gases.
The furnace
combustion
air supply must be provided
in
accordance
with this instruction manual.
19
determined
Fuel
by using
Gas Code ANSI
CIRCULATING
DUCTS
I
I
AIR
I
I
I
I
I
II
_:
12" MAX (305mm)
------1 SQ IN,
PER 1000
BTUH* IN DOOR
INTERIOR
HEATED
SPACE
O_
OR WALL
O
UNCONFINED
O
SPACE
6" MIN (152mm)
z
(FRONT)0
1 SQ IN,
<_
<_
--
PER 1000
BTUH* IN DOOR
OR WALL
©
i
i
CIRCULATING
OUTDOORS
L 12" MAX (305rnm)
AIR DUCTS
BTUH*
_' Minimum opening size is 100 sq in. (64516 mm 2) with minimum
*Mininmm dimensions of 3 in. (76 mm).
Use any of the following combinations of openings:
A&BC&DD&EF&G
dimensions of 3
in. (76 mm)
t Minimum of 3 in. (76 mm) when type-B1 vent is used.
A03174
Fig. 18 - Air for Combustion,
Ventilation,
Outdoors
1. For other
than
hood-equipped
Volume
fan-assisted
water
Dilution
A03175
for
Fig. 19 - Air for Combustion,
appliances,
such
c. Combining
Other ACH _000
appliances
Btu/hr d
such
and
Dilution
from
space on different
floor levels.
The
volumes of spaces on different floor levels shall be
considered
as communicating
spaces if connected
by
3
!other
Ventilation,
Indoors
as a draft
heater:
_ 21ft 3 _
2. For fan-assisted
and
one or more permanent
openings
in doors or floors
having free area of at least 2 in.2/1,000 Btuh
A04002
(4,400 mm2/kW)
gas appliances.
as this furnace:
of total input rating
of all
2. An attic or crawlspace
may be considered
a space that
freely communicates
with the outdoors provided there are
Volume
Fan
ACH
00(J Btu/hr
adequate
permanent
ventilation
openings
directly
outdoors having free area of at least 1-in.2/4,000
Btuh
total input rating for all gas appliances
in the space.
A04003
If:
Io_her=combined input of all ether
appliances
in Btu/hr
If_,,= combined
ACH
input of all fan-assisted
= air changes
per hour (ACH
The following
requirements
the Known Air Infiltration
1. Adjoining
a. There
than fan-assisted
rooms
appliances
shall not exceed
apply to the Standard
Rate Method.
can be considered
are no closable
doors
3. In spaces
infiltration
and to
Unusually
Construction
if:
rooms.
a. Walls
(2,000 mm2/kW) of the total input rating of all gas
appliances
in the space, but not less than 100 in. 2
(0.06 m2). One opening shall commence
within 12 in.
commence
minimum
and the second
opening
shall
ventilation
and
construction
and ceilings
exposed
vapor
and
dilution
of
flue
(See Fig. 19.)
NOTE:
effect
2O
to the outdoors
barrier.
windows
Openings
as
have a
are
c. Other
joints
openings are caulked or sealed. These include
around window and door frames, between sole
In determining
assumed
louvers
defined
and openable
of the louvers,
the free
is
b. Doors
plates and floors, between
wall panels, at penetrations
and gas lines, etc.
within 12 in. (305 mm) of the floor. The
dimension
of air openings
shall be at least
3 in. (76 mm).
tight
with:
continuous,
sealed
gasketed
or sealed
b. Combining
spaces on same floor level. Each opening
shall have free area of at least 1 in.2/1,000
Btuh
(305 mm) of the ceiling
permanent
Method,
air for
gases.
However,
in buildings
with
unusually
tight
construction,
additional
air MUST be provided
using the
methods
described
in the Outdoor
Combustion
Air
Method section.
0.60.)
part of a space
between
combustion,
in Btu/hr
Method
that use the Indoor
Combustion
Air
should
be adequate
to provide
to
of
that wood
louvers
and screens
or grille
design
must
the blocking
be considered.
is unknown,
have a 20 percent
have a 60 percent
and
wall-ceiling
joints, between
for plumbing,
electrical
the free area of an opening,
grilles,
area of a louver
or grilles
are weatherstripped
If
it may be
free area, and metal
free area. Screens,
when used,
mustnotbesmaller
than1/4-in.(6 mm)mesh.
Louvers
and
grilles
must
beconstructed
sotheycannot
beclosed.
When
combustion
airductsareused,
theymustbeofthesame
cross
sectional
area
asthefreearea
oftheopenings
towhichthey
connect.
Theminimum
dimension
ofducts
must
notbelessthan
3in.(76mm).
Combination
ofIndoor
andOutdoor
Air
1.Indooropeningsshall complywith the Indoor
Combustion
Air Method
below
and,
2.Outdooropenings
shallbe locatedas required
in
theOutdoorCombustion
Air Methodmentioned
previously
and,
3.Outdoor
openings
shallbesized
asfollows:
a.Calculate
theRatio
ofallIndoor
Space
volume
divided
byrequired
volume
forIndoorCombustion
Air
Method
below.
b.Outdoor
opening
sizereduction
Factor
is 1minus
the
Ratioina.above.
c.Minimum
sizeofOutdoor
openings
shallbethesize
required
inOutdoor
Combustion
Air Method
above
multiplied
byreduction
Factorinb.above.
The
minimum
dimension
ofairopenings
shallbenotless
than3in.(76mm).
INSTALLATION
Step 1 - Leveling
When
furnace
in upflow
The maximum
length
position
with
side
inlet(s),
of bolt should
2. For each hole,
in bottom
install
nut in hole. (Install
3. Install
another
flat washer
closure
not exceed
1-1/2 in
panel
nut on other
side
closure
Closure
must
Panel
of furnace
Step 2 - Installation
Applications
in Upflow
For downflow
use on combustible
manufacturer)
not required
Assembly
is used.
be used
section.
applications,
flooring
when
when
1. Determine
bolt
base.
this furnace
being
special
and
base
installed
dimensions
are
they
furnace
interfere
To remove
is approved
for
(available
UNIT
from
with
duct flange
and
until
forth
it
NOT
OPERATE
in intermittent
unit
in Fig. 24.
in Horizontal
or installed
from each
Applications
in either horizontal left
the furnace can either
on suitable blocks or pad.
corner by hanger bolts and
are provided
from Table
Coil
for hole locations.
(See
in Table 3
in
Table
NOT
OPERATE
in intermittent
unit
The entire length of furnace
MUST
be supported
when
furnace
is used in a horizontal
position
to ensure proper
draining.
When suspended,
bottom brace supports sides and
center blower shelf. When unit is supported from the ground,
blocks
or pad should
support
sides
and center
blower
shelf area.
3.
specified
MAY
Failure to follow this caution may result
operation or performance
satisfaction.
base is
Part No. KCAKC
specified
is used, install
perforated,
mating
perforated,
duct pliers,
MAY
Legs
Step 4 - Air Ducts
3
GENERAL REQUIREMENTS
Box Part No. KCAKC
subbase.
A89014
Fig. 20 - Leveling
shown in Fig. 25. Dimples
Fig. 2.)
4. If downflow
subbase (KGASB)
is used, install as shown in
Fig. 22. If Coil Assembly
Part No. CD5 or CK5 or Coil
when
1
angle iron supports. (See Fig. 25.) Cut hanger bolts (4 each 3/8-in.
(10 mm) all-thread
rod) to desired length. Use 1 X 3/8-in. flat
washers,
3/8-in. lock washers, and 3/8-in. nuts on hanger rods as
legs
on manufacturer's
or Coil Box
3. Construct
plenum
and Fig. 21.
Remove
1 3/4"
(44mm)
be hung from floor joist
Furnace can be suspended
and tighten
is used. Special
per dimensions
NOTE:
(44mm)
These furnaces can be installed horizontally
or right discharge position. In a crawlspace,
(Install
leveling
this furnace
2. Construct
hole in floor
and Fig. 21.
to
5/16"
and Downflow
is installed
application
height,
when
Part No. KGASB0201ALL
Part No. CD5 or CK5,
(8mrn)
Step 3 - Installation
as
if desired.)
NOTE:
Bottom
used. See Bottom
(44ram)
shown
if desired.)
4. Adjust outside nut to provide desired
inside Nut to secure arrangement.
NOTE:
may be used
nut on bolt and then install
flat washer
1 3/4"
Do not bend duct flanges inward as shown in Fig. 21. This
will affect airflow across heat exchangers
and may cause limit
cycling or premature
heat exchanger
failure. Remove
duct
flange completely
or bend it inward a minimum
of 210 ° as
1. Position furnace on its back. Locate and drill a 5/16-in. (8
mm) diameter hole in each bottom corner of furnace. (See
Fig. 20.) Holes
guide locations.
)
Failure to follow this caution may result
operation or performance
satisfaction.
leveling legs may be desired. (See Fig. 20.) Install field-supplied,
corrosion-resistant
5/16-in. (8 mm) machine bolts and nuts.
NOTE:
1 3/4'
(44ram)
UNIT
Legs (If Desired)
is used
(8mm)
as shown
supply-air
flanges
supply-air
on
off.
Be
in Fig. 23.
duct
careful
use wide
to bend flange
of
sharp
should be designed
and sized
according to
standards
such as those published
by: Air
Conditioning
Contractors
Association
(ACCA), Sheet Metal and
Air Conditioning
Contractors
National
Association
(SMACNA)
or American
Society
of Heating,
Refrigerating
and Air
flanges
or downflow
duct flanges,
tool, or hand seamers
breaks
coil
The duct system
accepted
national
Conditioning
Engineers
(ASHRAE),
Design
Guidelines
reference
tables
back
edges.
distributor.
The duct
required system design
(See Fig. 24.)
21
or consult
available
The Air Systems
from your local
system
should
be sized to handle
CFM at the design static pressure.
the
FURNACE
(OR OTHER MANUFACTURER'S
COILCASING WHEN USED)
COMBUSTIBLE
FLOORING
SUBBASE
SHEET METAL ...._
PLENUM
FLOOR
OPENING
A07585
A96283
Fig. 21 - Floor
and Plenum
Opening
Dimensions
Fig. 22 - Furnace, Plenum,
and Subbase
on a Combustible
Floor
Installed
FU RNACE
APPROVED
COIL ASSEMBLY
OR
COIL BOX
COMBUSTIBLE
FLOORING
I
--\
SHEET METAL
PLENUM
FLOOR
OPENING
A08556
Fig. 23 - Furnace,
Plenum,
and Coil Assembly
or Coil Box Installed
22
on a Combustible
Floor
Table
FURNACE
CASING
WIDTH
3 - Opening
Dimensions
- In. (mm)
PLENUM OPENING
APPLICATION
A
B
C
D
16
(406)
24-1/8
(613)
16-5/8
(422)
24-3/4
(629)
15-7/8
(403)
19
(483)
16-1/2
(419)
19-5/8
(498)
Downflow Applications on Combustible Flooring Using KGASB
Subbase Furnace with or without CAP, CAR, CNPV, CNRV Coil
Assembly or KCAKC Coil Box
15-1/8
(384)
19
(483)
16-3/4
20-3/8
(425)
(518)
Downflow Applications on Combustible Flooring NOT Using
KGASB Subbase Furnace with CAP, CAR, CNPV, CNRV Coil Assembly or KCAKC Coil Box
15-1/2
(394)
19
(483)
16-1/2
20
(419)
(508)
19-1/2
(495)
24-1/8
(613)
20-1/8
(511 )
24-3/4
(629)
19-3/8
(492)
19
(483)
20
(508)
19-5/8
(498)
Downflow Applications on Combustible Flooring Using KGASB
Subbase Furnace with or without CAP, CAR, CNPV, CNRV Coil
Assembly or KCAKC Coil Box
18-5/8
(473)
19
(483)
20-1/4
20-3/8
(514)
(518)
Downflow Applications on Combustible Flooring NOT Using
KGASB Subbase Furnace with CAP, CAR, CNPV, CNRV Coil Assembly or KCAKC Coil Box
19
19
20
20
(483)
(483)
(508)
(508)
23
(584)
24-1/8
(613)
23-5/8
(600)
24-3/4
(629)
22-7/8
(581)
19
(483)
23-1/2
(597)
19-5/8
(498)
Downflow Applications on Combustible Flooring Using KGASB
Subbase Furnace with or without CAP, CAR, CNPV, CNRV Coil
Assembly or KCAKC Coil Box
22-1/8
(562)
19
(483)
23-3/4
20-3/8
(603)
(518)
Downflow Applications on Combustible Flooring NOT Using
KGASB Subbase Furnace with CAP, CAR, CNPV, CNRV Coil Assembly or KCAKC Coil Box
22-1/2
(572)
19
(483)
23-1/2
20
(597)
(508)
Upflow Applications
Downflow Applications
17-1/2
(445)
on Non-Combustible
Flooring
Upflow Applications
Downflow Applications
21
(533)
on Non-Combustible
Flooring
Upflow Applications
Downflow Applications
24-1/2
(622)
FLOOR OPENING
on Non-Combustible
Flooring
Flexible
connections
furnace
DISCHARGE
FLANGE
DUCT
should
to prevent
be
transmission
used
between
of vibration.
ductwork
Ductwork
through
unconditioned
space should
be insulated
to
system
performance.
When air conditioning
is used,
barrier is recommended.
NO
and
passing
enhance
a vapor
Maintain
a 1-in. (25 mm) clearance
from combustible
materials to
supply
air ductwork
for a distance
of 36 in. (915
mm)
horizontally
from the furnace. See NFPA 90B or local code for
further
For
YES
I--]
I I
requirements.
a furnace
be provided
be accessible
such
a size that
openings
sampling
210 DEG.
MIN
not
shall
shall
using
the
prevent
Metal
the heat
light
air
with
a cooling
exchanger
assistance
stream.
coil, the outlet
duct
access panel. This opening
is installed
and shall be of
can
be viewed
or a probe
The
cover
for possible
can be inserted
for
attachment
shall
leaks.
DUCTWORK
YES
equipped
with a removable
when the furnace
ACOUSTICAL
duct systems
TREATMENT
that do not have a 90 degree
elbow
and 10 ft
(3 M) of main duct to the first branch take-off
may require
internal
acoustical
lining. As an alternative,
fibrous
ductwork
may be used if constructed
and installed in accordance
with the
A93029
latest edition of SMACNA
construction
standard on fibrous glass
ducts. Both acoustical
lining and fibrous ductwork
shall comply
Fig. 24 - Duct Flanges
with NFPA
air ducts.
When a furnace is installed
so that the supply ducts carry air
circulated by the furnace to areas outside the space containing the
furnace, the return
the furnace casing
the furnace.
Secure ductwork
Seal supply-and
approved
air must also be handled
and terminating
outside
with proper
return-duct
SUPPLY
by a duct(s) sealed to
the space containing
fasteners for type of ductwork
connections
to furnace with
Upflow
90B as tested
AIR
by UL Standard
181 for Class
1 Rigid
CONNECTIONS
Furnaces
Connect
supply-air
duct to 3/4-in. flange on furnace supply-air
outlet. The supply-air
duct attachment must ONLY be connected
used.
code
to furnace
casing
tape or duct sealer.
23
supply-/outlet-air
(when
used).
duct flanges
or air conditioning
DO NOT cut main furnace
casing
coil
to attach
supplysideair duct,humidifier,
or otheraccessories.
All
accessories
MUSTbeconnected
external
tofurnace
maincasing.
Downflow
Furnaces
covering
an opening
air plenum on ducts
Connect
supply-air
duct to supply-air
opening on furnace.
The
supply-air
duct attachment
must ONLY be connected
to furnace
supply/outlet
or air conditioning
installed
on non-combustible
coil casing (when used), when
material.
When
installed
on
combustible
duct attachment
material,
supply-air
must
ONLY
be
connected
to an accessory
subbase
or factory
approved
conditioning
coil casing. DO NOT cut main furnace casing
air
to
FIRE
Connect
in the furnace fan compartment
in the closed position.
or in a return
HAZARD
Failure to follow
injury, or death.
Never
attach supply side air duct, humidifier,
or other accessories.
All
accessories
MUST be connected
external to furnace main casing.
Supply air opening duct flanges must be modified
per Fig. 24.
Horizontal
communicating
with another fuel-burning
appliance
not of the
direct-vent
type, shall be operable
only when any door or panel
connect
this warning
return-air
could
ducts
Return-air
duct connections
upflow applications only.
to the
on
result
in fire, personal
back
furnace
of
the furnace.
side(s)
permitted
to bottom,
sides
in
Furnaces
supply-air
duct to supply
air opening
on furnace.
The
Upflow
supply-air
duct attachment
must ONLY be connected
to furnace
supply/outlet
or air conditioning
coil casing (when used). DO
NOT cut main furnace
casing to attach supply side air duct,
humidifier,
or other
accessories.
All accessories
MUST
be
connected
external
RETURN
AIR
to furnace
main
The
casing.
portion
The furnace
and its return air system
shall be designed
and
installed so that negative pressure
created by the air circulating
air supply or act
air, and that the
air circulating
in an enclosure
of
of return-air
Downflow
fan cannot affect another appliance's
combustion
to mix products of combustion
with circulating
the furnace,
if installed
The
COMBUSTION-AIR
(NON-DIRECT
duct
must
be connected
(left
or
right), or a combination
of bottom and side(s) of main furnace
casing.
Bypass
humidifier
may be attached
into unused
side
return air portion
of the furnace casing. DO NOT connect any
CONNECTIONS
fan
Furnaces
return-air
duct to back of furnace
and Horizontal
return-air
duct
casing.
Furnaces
must
be
connected
to return-air
opening
provided.
DO NOT
portion of return-air
cut into casing sides or back to attach any
duct. Bypass humidifier
connections
should
be made at ductwork
or coil casing
sides exterior
to furnace.
INTAKE
VENT
COMBUSTION-AIRPIPE
DIRECT VENT/2-PIPE
?ATION)
;)
_COMBUSTION-AIR
INTAKE
IS REQUIRED"_
!1
(NON-DIRECTVENT/1-PIPE
APPLICATION,)
3/8-1N. (10 mm) ROD
ANGLE
IRON OR
EQ
5 3/4"
(146
ram)
ALTERNATE SUPPORT
LOCATION 4qN. (102 mm) MIN
3-IN. (203 mm) MAX
(A)
(A) ROD LOCATION
USING DIMPLE
LOCATORS
(SEE DIMENSIONAL
DWG FOR
LOCATIONS)
(a)
& WASHER
(4)
REQD PER ROD
NOTES:
(A) PREFERRED
ROD LOCATION
13/16-1N. (21 mm)
MAX
ALTERNATESUPPORT
LOCATIONFROMBACK
1. A 1-in. (25.4 mm) clearance minimum
between top of furnace and combustible
material.
(B) ALTERNATE ROD LOCATION
2. The entire length of furnace must be
supported when furnace is used in horizontal
position to ensure proper drainage.
3. For non-direct vent/I-pipe application,
bottom side combustion-air entry cannot be
used when furnace is installed with hangers
as shown.
A05054
Fig. 25 - Crawlspace
Horizontal
Application
and for Non-Direct
for Direct
Vent/l-Pipe
24
Vent/2-Pipe
Installation
Installation
Step 5 - Filter
Arrangement
FIRE, CARBON
MONOXIDE
POISONING
HAZARD
AND
Failure to follow
injury or death.
could
result
a filter
or
Never
operate
door removed.
The
air filter
this warning
unit
without
arrangement
will
orientation,
and filter type.
external Filter/Media
cabinet
vary
21-IN. (533mm) WIDE
CASINGS ONLY:
SUPPORT RODS (3)
EXTEND 1/4" (6mm)ON
EACH SiDE OF FILTER AND
REST ON CASING FLANGE
171/2-1N.(444mm) WIDE
CASINGS ONLY:
INSTALL FIELD-SUPPLIED
FILTER FILLER STRIP
UNDER FILTER.
in fire,
with
personal
filter
access
due to application,
furnace
The filter may be installed
(if provided)
or the furnace
in an
blower
\
compartment.
If a factory-supplied
instructions
for its
external Filter/Media
application,
assembly,
cabinet is provided,
and installation
are
packaged
with the cabinet. The Filter/Media
cabinet can be used
with a factory-specified
washable
filter or a factory-specified
high-efficiency
If
installing
disposable
the
filter
filter
in
(see cabinet
the
furnace
instructions).
blower
compartment,
determine
location for filter and relocate filter retaining
wire if
necessary.
See Table 4 to determine
correct filter size for desired
filter location.
Table 4 indicates
filter size and location for this
furnace.
return-air
See Fig.
openings.
2 for location
and
size
of bottom
and
side
FILTER
Table 4 - Filter Information
AiR FILTER LOCATED
Furnace
Casing
Width
In. (mm)
17-1/2
(445)
21
(533)
24-1/2
(622)
IN BLOWER COMPARTMENT
Filter Size Side
Return*t
(1) 16X
25 X3/4
(406 X 635
X 19)
(1) 16X25X3/4
(406 X 635
In. (ram)
Bottom
Return*
(1) 16X
25 X3/4
(406 X 635
(1 or2)
16X25
X 3/4
(406 X 635 X 19)
(508 X 635
(1) 24X
Washable
X 19)
25 X3/4
(609 X 635
Washable
X 19)
(1) 20 X 25 X 3/4
X 19)
Filter Type
Framed
SUPPORT
Washable
FILTER
RETAINER
X 19)
A08605
* Alternate sizes can be ordered from your distributor or dealer.
1- Upflow only. Alternate sizes and additional filters may be ordered from
your dealer.
Fig. 27 - Bottom
Filter
Arrangement
FILTER
FILTER
RETAINER
!
I
|
|
|
I
BOTTOM
CLOSURE
PANEL
PANEL
A08587
Fig. 26 - Filter
Installed
for Side Inlet
A93047
Fig. 28 - Removing
25
Bottom
Closure
Panel
Risers must be used to connect to furnace
all gas piping
with appropriate
straps,
CUT
minimum
of 1 hanger every 6 ft. (2 M). Joint compound
(pipe
dope) should be applied sparingly
and only to male threads of
joints. Pipe dope must be resistant to propane gas.
HAZARD
Failure
personal
to follow
injury.
this
caution
may
result
in
minor
Use care when cutting support rods in filters to protect
flying pieces and sharp rod ends. Wear safety glasses,
and appropriate protective clothing.
against
gloves,
FIRE OR EXPLOSION
Failure to follow
injury or death.
-Connect
damaging
UNIT
MAY NOT
OPERATE
Failure to follow this caution may result
operation or performance
satisfaction.
in intermittent
Side
UPFLOW
Bottom
return-air
openings
configurations.
return-air
Install
opening
can
filter(s)
and discard
Step 6 - Bottom
-Use proper
manifold.
used
in
in Fig.
26.
widths.
Install
closure
panel when
furnace
is shipped
with
bottom
closure
1. Tilt or raise
filler panel.
2. Rotate
filter
be in place
perform
installed
filler panel downward
closure
2 screws
holding
front
to release
holding
tabs.
panel.
front filler panel
INTERNAL
SUPPLY
MANUAL _/
SHUTOFF
VALVE
10
(3.0)
20
(6.0)
30
(9.1 /
40
(12.1)
50
(15.21
(158)
175
120
97
82
73
0.824
(20.9)
360
250
200
170
151
(26.6)
680
465
375
320
285
(31.8)
1.380
(35.0)
1400
950
770
660
580
1-1/2
1.610
2100
1460
1180
990
IN. (MM)
3/4 (19.0)
wrench
to avoid
be facing
forward
or tilted
of pipe
to avoid
stress
on
gas
control
a minimum
of 2 in. (51 mm)
outside
"
II
_
_
SEDIMENT ''1
[
TRAP
UNION ..-a
0.622
1/2 (12.7)
a backup
(REQUIRED)/
f
LENGTH OF PIPE - FT (M)
DIA.
IN. (MM)
length
GAS _
and screws.
Table 5 - Maximum Capacity of Pipe*
NOMINAL
IRON PIPE
SIZE
personal
Install a sediment
trap in riser leading to furnace. Trap can be
installed
by connecting
a tee to riser leading
to furnace
so
straight-through
section of tee is vertical. Then connect a capped
nipple into lower end of tee. Capped nipple should extend below
level of gas controls.
Place a ground joint union between
gas
control manifold and manual gas shutoff valve. (See Fig. 29.)
the following:
and remove
MUST
in fire,
in
when
(See Fig. 28.)
bottom
4. Reinstall
panel
MUST
using
result
-Protect
gas valve from water and debris. Gas valve inlet
and/or inlet piping must remain capped until gas supply line is
permanently
installed to protect the valve from moisture
and
debris. Also, install a sediment trap in the gas supply piping at
the inlet to the gas valve.
bottom
closure
panel
panel,
furnace
front
3. Remove
bottom
switch
gas valve and extend
furnace casing.
Panel
This
shutoff
could
-If a flexible connector
is required
or allowed by authority
having jurisdiction,
black iron pipe shall be installed at furnace
all 4 orientations.
furnace
bottom
Closure
bottom return-air
opening.
side return air is used.
To remove
with
this warning
-Never purge a gas line into a combustion
chamber. Never test
for gas leaks with an open flame. Use a commercially
available soap solution made specifically
for the detection of
leaks to check all connections.
in Fig. 27.
NOTE:
Remove
inlet is used.
This
be
as shown
may be used
Filter may need to be cut to fit some
as shown
ONLY
HAZARD
gas pipe to furnace
gas controls.
-Gas valve
upward.
unit
For airflow requirements
above 1800 CFM, see Air Delivery
table in Product Data literature for specific use of single side
inlets. The use of both side inlets, a combination
of I side and
the bottom, or the bottom only will ensure adequate return air
openings for airflow requirements
above 1800 CFM.
NOTE:
and to meter. Support
hangers,
etc. Use a
1.049
1 (25.4)
1-1/4
(38.1)
* Cubic
(40.9)
ft of gas per hr for gas pressures
a pressure
drop
Table 9.2 NFGC.
of O.5-in
wc (based
of 0.5
on a 0.60
psig (14-in.
specific
900
wc)
gravity
or tess and
gas).
Ref:
A93324
Step 7 - Gas Piping
Fig. 29 - Typical Gas Pipe Arrangement
Gas piping must be installed
in accordance
with national
local
codes.
Refer
to current
edition
of NFGC
in
United
and
the
If local codes
States.
Canadian
NSCNGPIC
installations
must
and all authorities
be
made
having
in
accordance
allow the use of a flexible
gas appliance
connector,
always use a new listed connector.
Do not use a connector
has previously
served another gas appliance.
with
An accessible
jurisdiction.
manual
shutoff
valve
MUST
be installed
which
external
to furnace casing and within 6 ft (2 M)of furnace. A 1/8-in. NPT
plugged tapping, accessible
for test gauge connection,
MUST be
installed
immediately
upstream
of gas supply
connection
to
furnace and downstream
of manual shutoff valve.
Gas supply line should be a separate line running directly from
meter to furnace, if possible. Refer to Table 5 for recommended
gas pipe sizing.
26
Table 6-
Electrical
OPERATING VOLTAGE
RANGE
VOLTSHERTZPHASE
Data
MIN
WIRE
SIZE
MAX WIRE
LENGTH
FT (M):I:
MAX FUSE
OR CKT
BKR
AMPS**
Max*
Min*
MAX
UNIT
AMPS
060-12/036060
115-60-1
127
104
8.4
11.3
14
33(10.0)
15
080-12/036080
115-60-1
127
104
8.1
10.8
14
34(10.3)
15
080-16/048080
115-60-1
15.3
12
37(11.2)
115-60-1
115-60-1
104
104
11.6
100-16/048100
100-20/060100
127
127
104
15.4
17.5
12
12
37(11.2)
33(10.0)
2O
2O
127
11.6
13.3
120-20/060120
115-60-1
127
104
12.9
16.8
12
34(10.3)
UNIT SIZE
UNIT
AMPACITYI
2O
2O
Permissible limits of voltage range at which unit will operate satisfactorily.
Unit ampacity = 125 percent of largest operating component's
full load amps plus 100 percent of all other potential operating components'
etc.) full load amps.
:l: Length shown is measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop.
** Time-delay type is recommended.
Piping
should
be pressure
tested
in accordance
with
edition of the NFGC, local and national plumbing
before the furnace has been connected.
In Canada,
Step 8 - Electrical
the current
and gas codes
refer to current
(EAC, humidifier,
Connections
See Fig. 31, 32, and 50-57
for field wiring diagram
typical field 115-v and 24-v wiring. Check all factory
electrical connections
for tightness.
edition of NSCNGPIC.
If the pressure
exceeds 0.5 psig (14-in.
wc), gas supply pipe must be disconnected
from the furnace and
showing
and field
capped before pressure test. If test pressure is equal to or less than
0.5 psig (14-in. wc), turn off electric shutoff switch located on
furnace gas valve and accessible
manual shutoff valve before test.
After all connections
leakage.
have been made,
purge
lines
and check
ELECTRICAL
for
FIRE OR EXPLOSION
HAZARD
could
result
Field-supplied
wiring
63°F (3. 5o C) rise.
UNIT
Gas line grommet
(factory-supplied
loose parts
used when installing
gas piping. Gas line entry
bag) should be
hole filler plug
should
(See Fig. 30.)
NOTE:
gas line entry hole.
The gas valve inlet pressure
use as test gauge
connection
exceed
0.5 psig
(14-in.
pressure
shall
maximum
tap connection
providing
is suitable
test pressure
wc) stated
Furnace
gas
NOT
on gas valve.
(See
l15-V
supply
be
within
the
maximum
minimum
inlet supply pressures
marked on the rating
the furnace burners ON at HI-HEAT and OFF.
COMBUSTION-AIR
and
HOLE
FILLER
PLUG
A05057
Pipe
control
with the limitations
of
this
must
caution
may
be grounded
result
in
for proper
intermittent
operation
or
WIRING
The furnace
local codes;
ENTRY HOLE FILLER
IN FACTORY-SUPPLIED
Gas
injury
OPERATE
with electrical
connections,
make certain that
and phase correspond to that specified
on the
equipment.
Refer to
electrical specifications.
A05057
Fig. 30 - Typical
in personal
furnace rating plate. Also, check to be sure that service provided
by power supply is sufficient
to handle load imposed by this
PIPE GROMMET
2_6}'4-- GAS
L,NE
ENTRY
PIPE GROMMETS
AND
PLUGS ARE INCLUDED
LOOSE PARTS BAG
NOT
Before proceeding
voltage, frequency,
plate with
UNUSED
1÷3/4 -IN. (44 mm)
DIAMETER
GAS
HOLE
NOTE:
result
control
will
lock
out.
Control
is grounded
through
green/yellow
wire routed to gas valve C-terminal
and burner
box screw.
to
DOES
MAY
shall conform
Failure
to follow
unit operation.
Fig. 58.)
The
could
in serious
Never
test for gas leaks
with
an open flame.
Use a
commercially
available soap solution made specifically
for the
detection of leaks to check all connections.
A fire or explosion
could result causing property damage, personal injury or loss
of life.
in unused
this warning
Blower access door switch opens
115-v power
to furnace
control. No component
operation can occur. Do not bypass or
close switch with panel removed.
Failure to follow this warning exactly
injury, death, or property damage.
be installed
SHOCK HAZARD
Failure to follow
or death.
Arrangement
27
rating
plate
or
Table
6 for
equipment
must be electrically
grounded
in accordance
with
or in the absence of local codes, with the National
Electric Code ANSI/NFPA
70 and/or the Canadian
Electric Code,
CSA C22.1, Part I, if an external electrical source is utilized.
....
....
--
FIELD 24-V WIRING
FIELD 115-, 208/230-, 460-V WIRING
FACTORY 24-V WIRING
FACTORY 115-V WIRING
115-V FUSED
DISCONNECT
SWITCH
(WHEN REQUIRED)
1. Connect Y-terminal as shown for proper operation.
2. Some thermostats require a "C" terminal connection as shown.
3. If any of the original wire, as supplied, must be replaced,
use same type or equivalent wire.
A99071
Fig. 31 - Typical
Heating
and
Cooling
Application
Wiring
Diagram
1-Stage
....
....
--
Thermostat
and Condensing
Unit
FIELD 24-V WIRING
FIELD 115-, 208/230-, 460-V WIRING
FACTORY 24-V WIRING
FACTORY 115-V WIRING
2-STAGE THERMOSTAT TERMINALS
[
THREE-WIRE__
HEATINGONLY
BLK.__BLK
115-V FUSED
DISCONNECT
SWITCH
(WHEN REQUIRED)
I
I
I
Ii
II
I
T
',
',
',
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
"_,,__
-"h_]]_
I
@
it;
[
_1
I
I
I
....
p---l----+----[----4-- l
l
l
....
[
I
.......
II
[--"OJ
FIELD-SUPPLIED
FUSED DISCONNECT
208/230- OR
460-V
PHASE
Hm
JUNCTION
-]
BOX
CONTROL
BOX
Li--_
OY2
(_
I
[
j
(_
24-V
TERMINAL
BLOCK
FURNACE
-._E_®_
_
b /
T__:I::I
[
----GND/
- - 1 208/230-V
/SINGLE
PHASE
2-SPEED
CONDENSING
UNIT
NOTES: 1. Connect Y4ermina[ as shown for proper operation.
2. Some thermostats require a "C" terminal connection as shown.
3. If any of the original wire, as supplied, must be replaced,
use same type or equivalent wire.
A99072
Fig. 32 - Typical
Heating
and Cooling
Application
Wiring
28
Diagram
2-Stage
Thermostat
and Condensing
Unit
INSTALLED
LOCATION
ELECTRIC
DISCONNECT
SWITCH
POWER ENTRY HOLE
FILLER PLUG (FACTORYSUPPLIED LOOSE PARTS BAG)
@
UNUSED
7/SqN.
DIAMETER
ENTRY
(22
I
POWER
HOLES
A93033
Fig. 33 - Disconnect
Switch
A05113
and Furnace
Fig. 34 - Factory
within
sight from and readily
NOTE:
Proper
maintained
for l15-v
status
polarity
indicator
and
wiring.
light
accessible
proper
If polarity
will
flash
must
is incorrect,
rapidly
and
be
control
LED
furnace
will
NOT operate.
FIRE
HAZARD
Failure to follow this warning
could
operation or performance
satisfaction.
result
Do not connect
disconnect
furnace.
aluminum
Use only copper
ELECTRICAL
wire between
in intermittent
switch
1. Electronic Air (.'leaner (EAC) Two male quick-connect
terminals marked EAC-1 and EAC-2 are provided for
EAC connection. (See Fig. 37.) These terminals are
energized with 115-v (1.0-amp maximum) during blower
motor operation.
and
wire. (See Fig. 33.)
2. Humidifier (HUM) Connect an accessory 24 VAC, 0.5
amp maximum humidifier (if used) to the 1/4-in. male
quick-connect
HUM terminal
and COM-24V screw
terminal on the control board thermostat strip. The HUM
terminal is energized when gas valve is energized. (See
Fig. 36 or 37.)
NOTE:
A field-supplied, 115-v controlled relay connected to
EAC terminals may be added if humidifier operation is desired
during blower operation.
SHOCK AND FIRE HAZARD
Failure to follow
fire, or death.
this warning
could
result in electrical
The furnace casing MUST have an uninterrupted
ground according to NEC ANSI/NFPA
70-2008
Electrical
Code CSA C22.1 or local codes
shock,
or unbroken
and Canadian
to minimize
personal injury if an electrical fault should occur. This may
consist of electrical
wire or conduit approved
for electrical
ground when installed in accordance
with existing electrical
codes. Do not use gas piping as an electrical ground.
UNIT
Factory
Install
Installed
J-Box
electrical
entry
parts bag) in unused
J-Box
2. Rotate
hole filler
power
plugs (factory-supplied
2 screws
entry holes.
(See Fig. 34.)
holding
180 ° and
auxiliary
attach
J-box. (See Fig. 35.)
box
to
left
side,
loose
35.)
electrical
parts
ELECTRICAL
Bag)
entry
hole
in unused
SHOCK
AND
filler
plugs
power
using
FIRE
Failure to follow this warning could
operation or performance
satisfaction.
(factory-supplied
entry
holes.
Fig.
HAZARD
result
in intermittent
If manual disconnect
switch is to be mounted
select a location where a drill or fastener will
electrical
(See
NOT
connect
this
furnace
caution
control
may
HUM
result
terminal
in
unit
to HUM
(humidifier)
terminal
on Thermidistaff
M, Zone Controller
or
similar
device.
See
Thermidistat'M,
Zone
Controller,
thermostat,
or controller
manufacturer's
instructions
for
proper connection.
holes provided.
3. Install
HAZARD
Failure
to
follow
component
damage.
in loose
DO
J-box
DAMAGE
Location
Relocation
1. Remove
Location
Make field 24-v connections at 24-v terminal block on furnace.
(See Fig. 37.) Connect terminal Y/Y2 as shown in Fig. 31 and 32
for proper cooling operation. Use only AWG No. 18, color-coded,
copper thermostat wire for lengths up to 100 ft. (30 M). For wire
lengths over 100 ft. (30 M), use AWG No. 16 wire.
The 24-v circuit contains an automotive-type, 3-amp fuse located
on furnace control. (See Fig. 37.) Any direct shorts of 24-v wiring
during installation, service, or maintenance could cause this fuse
to blow. If fuse replacement is required, use ONLY a 3-amp fuse
of identical size/type. The control will flash code 24 when fuse
needs replacement.
ACCESSORIES
to furnace.
grounding
J-Box
24-V WIRING
Use a separate,
fused
branch
electrical
circuit
containing
a
properly sized fuse or circuit breaker for this furnace. See Table 6
for wire size and fuse specifications.
A disconnecting
means must
be located
Installed
unit
on furnace,
not contact
or gas components.
29
ALTERNATE -FIELD
LOCATION
S
iNSTALLED
LOCATION
ACTORY
POWER ENTRY HOLE
iiiiii:0 _,,_1
,..-----.- FILLER PLUG (FACTORYSUPPLIED LOOSE PARTS BAG)
J
POWER ENTRY HOLE
______n-u.. ....
FILLER PLUG (FACTORY .......
SUPPLIED LOOSE PARTS BAG)
•_. UNUSED 7/8-1N. (22 ram) DIAMETER
POWER ENTRY HOLES
/
UNUSED 7/8-1N. (22 mm) DIAMETER
POWER ENTRY HOLES
A05058
Fig. 35 - Relocating
Step 9 - Removal of Existing
Common Vent Systems
Furnaces
from
When an existing Category I furnace is removed
original venting system may no longer be sized
or replaced,
the
to properly vent
the remaining
attached
appliances.
An
Category I venting
system
could
cause
improperly
sized
the formation
of
condensate
in the furnace and vent, leakage
combustion
products,
spillage
of combustion
living space, etc.
of condensate
and
products
into the
Step 10 - Combustion
GENERAL
Vent system
may need
to be resized.
when
resizing
vent
or connector
must be
using appropriate
systems
sized
to
table
Multistory
and common
DIRECT
VENT/2-PIPE
venting
vent
(1-pipe)
or
vent
approach
kit MUST
NON-DIRECT
in
4. Close
SYSTEM
be used in a direct
range hoods
at maximum
(in loose
pipe elbow.
vent (2-pipe)
system.
bag)
MUST
be
used
in
Natural
and
vent
pipe,
fittings,
primers,
and
to
and bathroom
exhausts, so they are operating
speed. Do not operate a summer exhaust fan.
being
at
8. If improper venting is observed during any of the above
tests, the venting system must be corrected in accordance
with the National Fuel Gas Code, ANSI
Z223.12006/NFPA
54-2006
and/or CSA B149.1-05,
MATERIALS
Combustion-air
not connected
fans, such as
7. Test for spillage from draft hood equipped appliances
the draft hood relief opening after 5 minutes of main
burner operation. Use the flame of a match or candle.
SYSTEM
parts
dampers.
6. Follow the lighting instructions.
Place the appliance
inspected into operation. Adjust the thermostat
so
appliance is operating
continuously.
In a non-direct
vent (1-pipe) system,
all air for combustion
is
taken from the area adjacent to furnace, and all flue products are
discharged
to outdoor atmosphere.
A factory-supplied
perforated
disk
assembly
combustion-air
fireplace
5. Turn on clothes dryers and any appliance
the venting system. Turn on any exhaust
are prohibited.
VENT/I-PIPE
system.
3. As far as practical, close all building doors and windows
and all doors between the space in which the appliance(s)
connected
to the venting system are located and other
spaces of the building.
In a direct-vent
(2-pipe) system,
all air for combustion
is taken
directly
from outdoor
atmosphere,
and all flue products
are
discharged
to outdoor
atmosphere.
A factory
accessory
vent
termination
in venting
Natural Gas and Propane Installation
Code and these
instructions.
Determine
that there is no blockage or
restriction,
leakage, corrosion
and other deficiencies,
which could cause an unsafe condition.
in the
procedures
openings
2. Inspect the venting system for proper size and horizontal
pitch, as required in the National Fuel Gas Code, ANSI
Z223.1-2006/NFPA
54-2006
or the CSA B149.1-05,
system
shall be installed
in accordance
with the direct vent
(2-pipe)
procedures
in the following
Combustion
Air
and
Vent Pipe
Systems
section.
For
non-direct
vent
(1-pipe)
to the non-direct
HAZARD
The following
steps shall be followed
for each appliance
connected
to the venting system being placed into operation,
while all other appliances connected
to the venting system are
not in operation:
For any
found
POISONING
Failure to follow the steps outlined below for each appliance
connected
to the venting system being placed into operation
could result in carbon monoxide poisoning or death.
can be vented as either a direct vent (all sizes) or as
vent (except for 140 size) application.
A direct vent
applications,
refer
the same section.
MONOXIDE
1. Seal any unused
minimum
size as determined
NFGC or NSCNGPIC.
The 58MTB
a non-direct
CARBON
Air and Vent Pipe Systems
or vent connectors
other
appliances
connectors,
system
J-Box
Gas and Propane
Installation
Code.
9. After it has been determined
that each appliance
connected
to the venting system properly vents when
tested as outlined above, return doors, windows, exhaust
solvents
must conform to American
National
Standards
Institute (ANSI)
standards
and American
Society
for Testing
and Materials
(ASTM) standards.
See Table 7 for approved
materials for use in
the U.S.A.
fans, fireplace dampers and any other gas-fired
appliance to their previous conditions
of use.
3O
burning
PRINTED CIRCIUT BOARD
z
0_+o,I1"' °+"-_d¢
tu
8z
E
i_
£
E
_o_
_
_
o
_
_
_
_o
_
_
_
<
_
'=' -ol _
/
ACRDJ
O,S B,
AIR CONDITIONING
TEST!TWIN
,/
--
--
TRANSFORMER
PLI-
sEo,
%02"I 11
DIAGNOSTIC
LIGHT
FUSE _
LED3-AMP
OPERATION&_p,_=
115-VAC (L2) NEUTRAL _
CO N N ECTtO N S
_ I
_=
LOW VOLTAGE
MAIN
HARNESS
CONNECTOR
_
,g__ _;_:,
24-VAC
CONNECT,ONS
_
PL3
o
BHi/LOR
BLWR
HEAT
-i
_J[_Z[]
LO HEAT-
_'
-
=
SPA _ spRE-1SPARE-2 EAC-1
S E LECTIO N :TgR_/I_I_ALS
_
BLOWER SPEEDIPX
y
\
COOL, EAC-1 _I_;_V_L_A_O(IN)
SPARE-2 /
L_Eo
N
PG:_T,
oTi R_O:N_D_U:_T_O
E
(115-VAC
A02017
Fig. 37 - Control
Center
4. Permanently
attach elbow/perforated
straight portion
of pipe using RTV
shown
UNIT
CORROSION
HAZARD
Assembly
Excessive exposure to contaminated
combustion
in safety and performance
related problems.
Combustion
air
because
inside
which
include
These elements
must
not
be
taken
from
System
air may result
air is frequently
contaminated
by halogens,
fluorides,
chlorides,
bromides,
and iodides.
are found in aerosols,
detergents,
bleaches,
NOTE:
within
cleaning solvents, salts, air fresheners,
adhesives,
paint, and
other household products. Locate combustion-air
inlet as far as
possible
from swimming
pool and swimming
pool pump
house.
All
pipe
combustion-air
inlet
may be necessary
Assembly
System
joints
pipe
must
to inlet
to remove
of Combustion
have
cemented
housing
attachment
connection,
of
since
Table
13,
Do not count
furnace
MAY
Failure
to
combustion,
it
pipe for servicing.
Air Pipe (Non-Direct
Vent-2-Pipe
determine
the
smallest
elbows
(All elbows
or pipe sections
shown
combustion
diameter
air
and use it for
in terminations
or
in Fig. 44 and Fig. 45 are not
to be counted).
UNIT
NOTE:
Air Pipe (Direct
ONLY)
diameter permitted.
Pick the larger
both combustion
and vent pipe.
structure
to
as
in Fig. 39.
of Combustion
1. Using
inside
disk assembly
or by cementing
NOT
OPERATE
follow
this caution
may
flame disturbance,
or flame
result in incomplete
sense lockout.
When installing combustion
air and vent system of short pipe
length, the smallest allowable pipe diameter must be used.
Vent/I-Pipe
ONLY)
1. Permanently
install
perforated
disk
assembly
NOTE:
furnace
(factory-supplied
in loose parts bag) in combustion-air
elbow using RTV or by cementing,
as shown in Fig. 39.
For 120,000 Btuh size units only: separate the 2 halves of
perforated
disk half.
disk
assembly
and
2. Determine
the length of straight
inlet pipe from Fig. 39.
use
only
portion
3. Cut field-supplied
2-in. (51 mm)
length as determined
per Fig. 39.
the
casing
shouldered
PVC
pipe
per Table
(factory-supplied
where combustion
set is required,
to
33
be used within
outside furnace
per Fig. 41.
2. If required
of combustion-air
diameter
A 2-in. (51 mm) diameter
pipe must
casing. Make all pipe diameter transitions
13, insert
perforated
disk
assembly
in loose parts bag) in intake housing
air pipe will be connected.
If half disk
install
only shouldered
disk half.
/
i!
/
!
..........
\
\
A
....
.....
"\
......
............
C
_
to a _y
t_m_lnal _tn
F
Cl_r_e
_ra_"_e
_
_s_
of 2 feet(61cm) f_om _e
_oa_ o_tstd_ ¢o_er
Clearar_e to _
J
25-24_2
ctosed _ow
a horl_
m_ter ot _
_I
\
\
............
..... .....
¢Om_o_
se_¢_
_ulator
to nor_-m_a_
air |r_tet to _
_U_
_s_b_
assembly
ve_ _et
a_r sut_;:)ty Inlet to bt_idi_
_r
rneter, rteg_l_
asserrd_
3 f_st (9_ _m)
or
ap_$e_;_
12 inches
and <
(30 cm)
100,000
appliances
for applieances
Btuh(3OkW),
> 100,000
> 10,000
36 inches
Btuh(3
(91cm)
kW)
for
50,000 BtL_h(i _,
i 2 in_es (_)lot
app_
Btuh(3OkW)
A08600
Table
8 - Direct
Vent Termination
34
Clearance
H
25-24-65-2
[_
VENTTERMINAL
Item
Clearance
A
Clearance
above
anticipated
B
snow
Clearance
C
Clearance
D
Vertical
grade,
or door
to a permanently
clearance
that
deck,
to an unventilated
E
Clearance
to an outside
G
Clearance
to an inside
H
Clearance
to each
may
closed
balcony,
or
6 inches
soffit
located
above
of 2"(61cm)
U.S. Installation
12 inches
(30 cm)
4 feet(l.2
m) below
(2)
(15 cm)
for appliances
_< 10,000
Btuh (3 kW)
12 inches ( 30 cm) for appliances
> 10,000 Btuh (3 kW0)
and -< 100,000
Btuh (30 kW), 36 inches (91 cm) for
appliances
> 100,000
Btuh (39 kW)
above
3 feet (91 cm) within
3 feet (91 cm)
or to the side of the opening,
t foot (30 cm
the opening.
corner
corner
side of the centerline
extended
regulator
regulator
above
assembly
K
Clearance
to a mechanical
L
Clearance
under
vent outlet
M
Clearance
to each
below
terminal
air supply
a veranda,
porch,
of the furnace
appliance's
direct
or
extended
t 2 inches(3O
above
to a dryer or water
15 feet
(4.5 m) above
the meter/regulator
4 feet(1.2
m) below
above opening.
intake
3 feet (91 cm) above
cm)
or to the side of opening:
if within
1 foot
(30 cm)
10 feet (3 m horizontally)
+
or
heater
or exhaust.
Clearance
to the vent terminal of a dryer vent, water heater
vent, or other appliances
direct vent intake or exhaust.
O
Clearance
p
Clearance
above
driveway
located
vent
_iithin
assembly
6 feet (1.83 m)
or balcony
N
a plumbing
the meter/regulator
6 inches (15 cm) for appliances
-< 10,000 Btuh (3 kW)
12 inches
( 30 cm) for appliances
> 10,000 Btuh (3 kWO)
and < 100,900
Btuh (30 kW)
36 inches
(91 cm) for appliances
> t00,000
Btuh (30 kW)
inlet
vent
m) above
3 feet (91 cm)
deck,
side of the centerline
15 feet(4.5
assembly
Clearance
to non-mechanical
air supply inlet to building
the combustion
air inlet to any other appliance
(1.)
(1)
#
the
J
from
Installation
IS NOT PERMITED
the
from
Clearance
or other
(30cm)
TERMINAL
soffit
or gas service
to service
be opened
I
vent,
12 inches
WHERE
window
distance
Clearance
vent
AREA
INLET
Canadian
porch,
to a ventilated
E
meter
AIR SUPPLY
level
to a window
electrical
_
Descriptions
veranda,
terminal
within a horizontal
centerline
of the terminal
stack
paved sidewalk
or paved
on public property
7 feet (2.13m)**
7 feet (2.13m)
InaccordaecewiththecurrentCSABt49.1,NaturalGasandPropanelnstallationCode
(2.)
InaccordancewiththecurrentANSIZ223.1/NFPA54,
#
18"
+
Permitted
**
\\
(46 cm)
above
only
if veranda,
porch,
For clearances
not specified
Manufacturer's
installation
A vent
NationalFuelGasCode
roof surface
shall not terminate
deck,
in ANSI
or balcony
is fully open
Z223.1/NFPA
54 or CSA
on a minimum
B149.1,
of two sides
clearances
shall
beneath
the floor.
be in accordance
with local installation
codes
and the requirements
of the gas supplier
and
the
instructions.
above
a sidewalk
or paved
driveway
that
is located
between
two single
family
dwellings
and serves
both
dwellings.
Notes:
1.
2.
The
vent for this appliance
b.
Nears__it_ents_rcraw_spacevents_r_therareaswherec_ndensate_rvap_rc_u_dcreateanusiance_rhazard_rpr_pertydamage;_r
c.
Wh_rec_ndensatevap_rc_u_dcausedamage_rc_u_dbedetrime_ta_t_t_e_p_rati_n_fregu_at_rs_r__iefva_ves__r_therequipme_t_
locating
Recirculation
3
Avoid
venting
walkways;
not terminate
Over
When
public
shall
a.
or
vent terminations,
can cause
under
consideration
poor combustion,
a deck
or large
must
be given
inlet condensate
overhang.
Recirculation
to prevailing
problems,
could
and
occur
winds,
location,
accelerated
and
cause
and
other c onditions
corrosion
performance
of the heat
or system
which
may cause
recirculation
of the combustiob
products
of adjacent
vents.
exchangers.
problems.
A08601
Table
9 - Other
than Direct
Vent Termination
35
Clearance
Table
10 -
Maximum
Allowable
Winter
UNIT
SIZE
WINTER
DESIGN
TEMPERATURE
060
°F (°C)
Exposed
Design
Vent Pipe Length
Temperature
With and Without
Insulation
in
Ambient*
MAX PIPE
DIAMETER
IN. (mm)
WITHOUT
INSULATION
FT (i)
WITH 3/8-1N.
(10 mm) OR
THICKER
INSULATION
FT (a)l
20 (-7)
2 (51)
44 (13)
70 (21)
0 (-18)
2 (51)
21 (6)
70 (21)
2 (51)
20 (6)
57 (17)
20 (-7)
2 (51)
55 (17)
55 (17)
0 (-18)
2 (51)
30 (9)
55 (17)
2 (51)
16 (5)
55 (17)
20 (-7)
2.5 (64)
58 (18)
70 (21)
0 (-18)
2.5 (64)
29 (9)
70 (21)
2.5 (64)
14 (4)
67 (20)
20 (-7)
2.5 (64)
40 (12)
40 (12)
0 (-18)
2.5 (64)
38 (12)
40 (12)
2.5 (64)
21 (6)
40 (12)
-20
-20
(-29)
(-29)
080
-20
-20
(-29)
(-29)
100
3 (76)
0 (-18)
3 (76)
30 (9)
70 (21)
3 (76)
12 (4)
70 (21)
20 (-7)
3 (76)
70 (21)
70 (21)
0 (-18)
3 (76)
38 (12)
70 (21)
3 (76)
19 (6)
70 (21)
20 (-7)
4 (102)
65 (20)
70 (21)
0 (-18)
4 (102)
26 (8)
70 (21)
4 (102)
5 (2)
65 (20)
-20
120
-20
-20
(-29)
(-29)
(-29)
* Pipe length (ft) specified for maximum pipe lengths located in unconditioned
length as specified in Table 11.
1- Insulation thickness based on R value of 3.5 per in.
Attachment of Combustion
63
(19)
20 (-7)
70 (21)
spaces= Pipes located in unconditioned
Air Pipe
space cannot exceed total allowable pipe
field-supplied 3/8-in. tube. This tube should be routed to open
condensate drain for furnace and A/C (if used), and should be
trapped, as shown in Fig. 42.
1. Determine
location of combustion
air intake pipe
connection to combustion air intake housing as shown in
Fig. 38 for application.
NOTE:
(Direct Vent/2-Pipe System ONLY). Moisture in
combustion air intake may be a result of improper termination.
Ensure combustion air pipe termination is similar to those as
shown in Fig. 44 so that it will not be susceptible to area where
light snow or other sources of moisture could be pulled in.
VENT PIPE
2. Reposition combustion air intake housing plug fitting in
appropriate unused intake housing connection.
3. Install combustion-air pipe grommet (factory-supplied in
loose
parts
bag)
into
selected
furnace
casing
combustion-air pipe hole. (See Fig. 40.)
4. Insert assembled combustion air inlet pipe into intake
housing as shown in Fig. 38.
General
Furnace vent connection must be attached as shown in Fig. 38.
5. Drill a I/S-in. (3 mm) hole in 2-in. (51 mm), combustion
air pipe using the hole in intake housing as a guide.
6. Install a field-supplied No. 6 or No. 8 sheet metal screw
into combustion air pipe.
CARBON MONOXIDE
DAMAGE HAZARD
7. Install casing hole filler cap (factory-supplied in loose
parts bag) in unused combustion air pipe casing hole.
POISONING
AND PROPERTY
Failure to follow this warning could result in property damage,
personal injury, or death.
NOTE: Do not attach combustion air intake pipe permanently
to combustion air intake housing since it may be necessary to
remove pipe for service of burner box components
or
flame sensor.
Vent pipes must be airtight.
NOTE:
A 2-in. (51 mm) diameter
Attachment of Combustion Air Intake Housing Plug Fitting
furnace
The combustion-air intake plug fitting must be installed in unused
combustion air intake housing. This fitting must be attached by
using RTV sealant, or by drilling a 1/8-in. (3 mm) hole in fitting,
using hole in intake housing as a guide. Install a field-supplied
No. 6 or No. 8 sheet metal screw.
casing
NOTE: DO NOT OVERTIGHTEN SCREW. Breakage of intake
housing or fitting may cause air leakage to occur.
excessive
Fig. 43.)
A plugged drain connection has been provided on this fitting for
use when moisture is found in combustion air intake pipe and
combustion box. If use of this drain connection is desired, drill
out fitting's tap plug with 3/16-in. drill and connect a
Attachment
casing.
Make
pipe must be used
all pipe diameter
transitions
within
outside
the
furnace
per Fig. 41.
The minimum
vent pipe length for these furnaces is 5 ft. (2 M).
Short pipe lengths (5-8 ft or 2-3 M) may discharge
condensate
droplets.
These condensate
(305 mm) minimum offset
condensate
droplets may be undesirable.
pipe section is recommended
droplets
from exiting
vent pipe outlet.
(See
of Vent Pipe
1. Determine
vent pipe diameter
using Table 13.
36
A 12-in.
to reduce
and maximum
pipe lengths
Table
11 SETUP SWITCH
NOTE:
NO.
SWITCH
NAME
Furnace
NORMAL
Setup
Switch
Description
POSITION
DESCRIPTION
OF USE
When off, allows 2-stage operation with a single-stage
thermostat. Turn on when using 2-stage thermostat to allow Low
Heat operation when R to W/W1 closes and High Heat operation
when R to W/W1 and W2 close.
SW-1
Adaptive Heat
Mode
OFF
Blower OFF
delay
ON or OFF
Control blower OFF delay time. Used in conjunction
See Table 9B.
with SW-3.
SW-2
Blower OFF
delay
ON or OFF
Control blower OFF delay time. Used in conjunction
See Table 9B.
with SW-2.
SW-3
Select 1 vent pipe connection and
1 combustion-air
pipe connection.
AIR
COMBUSTION-AIR _
COMBUSTION-AIR
_t[-F!'EL'
NOTE: Select 1 vent pipe connection and
1 combustion-air
pipe connection.
' ---F,ELD-SUPPL,
ED
PVC 90 ° ELBOWJ
,z"
__
4__
W TO
2-IN. (51 mm) DIA.
PVC PiPE
_ _
VENT
f
COMBUSTIONAIR
_7
AiR
FLOW
A
COMBUSTIONAIR
_LCOMBUSTION-AIR
UPFLOW
DISC
DOWNFLOW
(FACTORY-SUPPLIED
LOOSE PARTS BAG)
COMBUSTIONAIR
COMBUSTIONAIR
VENT
IN
A96211
Length
VENT
of Straight
Combustion-Air
Pipe Portion
Inlet Pipe Assembly
of
- In. (mm)
CASING WIDTH
17-1/2
A
(445)
21 (533)
24-1/2
(622)
HORIZONTAL-LEFT
DISCHARGE
HORIZONTAL-RIGHT
NOTE:
DISCHARGE
(Direct
same diameter
in section
For Non-Direct Vent (1-Pipe) system, orient elbow so that its
opening faces down.
system
NOTE:
For Non-Direct Vent (1 -Pipe) system, orient elbow so that its
opening faces sideways.
within
1 An external trap kit (see furnace product data sheet) must be used.
tt
Bottom combustion-air
not allowed for non-direct
38
-+1/2 (287 -+13)
Inlet Pipe Assembly
- Combustion-Air
Table 12 - Blower
and
Vent
Pipe
Vent/2-pipe
"Assembly
of Combustion
Do not count
furnace
elbows
(all elbows
housing
location
as shown
pipe
system
has the
air pipe mentioned
Air Pipe (Direct
or pipe sections
shown
Vent/2-Pipe
in terminations
or
in Fig. 44 and Fig. 45 are not be
of vent
pipe
connection
Units
4. Reposition
elastomeric
(rubber)
and
clamp
to appropriate
Tighten
to inducer
in Fig. 38 for application.
3. Install vent pipe grommet
(factory-supplied
bag) into selected
furnace
casing vent
Fig. 44.)
Connections
connection.
DESIRED HEATING MODE
BLOWER-OFF DELAY (SEC)
vent
as combustion
ONLY)."
2. Determine
Off Delay Setup Switch (SW) 2-Stage
with PSC Blower Motors
ONLY)
and same length
to counted).
vent
A05092
Fig.
10-1/2
12 -+1/2 (318 -+13)
Fig. 39 - Combustion-Air
**
-+1/2 (216 -+13)
tt
t
*
8-1/2
inducer
unused
in loose
pipe hole.
housing
inducer
parts
(See
outlet cap
housing
clamp.
SETUP SWITCH
90
SW-2
OFF
SW-3
OFF
120
OFF
ON
UNIT
150
ON
OFF
180
ON
ON
Failure to follow this caution may result in unit component
damage.
DAMAGE
HAZARD
Inducer housing outlet cap must be installed and fully seated
against inducer housing. Clamp must be tightened to prevent
any condensate leakage.
37
Table 13 - Maximum
ALTITUDE
FT (i)
UNIT MAX
INPUT
RATE
(BTUH)
60,000
80,000
DIRECT VENT (2-PIPE)
ONLY
TERMINATI
PIPE DIA
ON TYPE
IN. (MM)*
2 Pipe or 2-in.
(51 ram)
Concentric
2 (51)
1 - 1/2 (38)
1 - 1/2 (38)
2 (51)
(64)
2-1/2
(64)
3 (76)
2-1/2
60,000
80,000
2001 to
3000
100,000
(610 to 914)
120,000
60,000
80,000
3001 to
4000
(914 to
1219)
100,000
120,000
2 Pipe or 3-in.
(76 ram)
Concentric
2 Pipe or 2-in.
(51 ram)
Concentric
2 Pipe or 2-in.
(51 ram)
Concentric
2 Pipe or 3-in.
(76 ram)
Concentric
2 Pipe or 3-in.
(76 ram)
Concentric
2 Pipe or 2-in.
(51 ram)
Concentric
2 Pipe or 2-in.
(51 ram)
Concentric
2 Pipe or 3-in.
(76 mm)
Concentric
2 Pipe or 3-in.
(76 mm)
Concentric
4t no disk
See
notes
at end
(64) one
disk
2 (51)
2-1/2
(64)
2 (51)
2-1/2
(64)
3 (76)
2-1/2
(64)
NA
3 (76)t
3 (76)t no
disk
3 (76)t
1 - 1/2 (38)
1 - 1/2 (38)
2 (51)
2 (51)
2 (51)
2 (51)
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
3 (76)
3 (76)
3 (76)
NA
NA
NUMBER OF 90 ° ELBOWS
DIA
2 (51)
2 (51)
2 Pipe or 3-in.
(76 ram)
Concentric
PIPE
IN. (MM)*
1 - 1/2 (38)
2 Pipe or 2-in.
(51 ram)
Concentric
- Ft. (M)
(1 -PIPE)
ONLY
1 - 1/2 (38)
2-1/2
120,000
Pipe Length
NON-DIRE
CT VENT
0 to 2000
(0 to 610)
100,000
Allowable
3 (76)t
3 (76)t no
disk
NA
4t no disk
4t no disk
1 - 1/2 (38)
1 - 1/2 (38)
2 (51)
2 (51)
2 (51)
2 (51)
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
3 (76)
3 (76)
3 (76)t no
disk
NA
NA
3 (76)t
4t no disk
4t no disk
of table
38
1
2
3
4
5
6
2O
(6.1)
70
(21.3)
10
(3.0)
55
(16.7)
70
(21.3)
15
(4.6)
70
(21.3)
10
(3.0)
70
(21.3)
5
(1.5)
70
(21.3)
NA
NA
70
(21.3)
70
(21.3)
NA
NA
NA
NA
NA
50
(15.2)
70
(21.3)
35
(10.6)
70
(21.3)
30
(9.1)
70
(21.3)
30
(9.1)
70
(21.3)
20
(6.1)
70
(21.3)
5
(1.5)
40
(12.1)
70
(21.3)
NA
NA
NA
NA
NA
30
(9.1)
20
(6.1)
20
(6.1)
10
(3.0)
NA
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
70
(21.3)
10 (3.0)
NA
NA
NA
NA
NA
45
40
35
30
25
20
(13.7)
(12.1)
(10.6)
(9.1)
(7.6)
(6.1)
70
70
70
70
70
70
(21.3)
(21.3)
(21.3)
(21.3)
(21.3)
(21.3)
17
(5.1)
12
(3.6)
7
(2.1)
NA
NA
NA
70
67
66
61
61
61
(21.3)
(20.4)
(20.1)
(18.5)
(18.5)
(18.5)
49
44
30
25
25
15
(14.9)
(13.4)
(9.1)
(7.6)
(7.6)
(4.6)
70
70
70
70
70
70
(21.3)
(21.3)
(21.3)
(21.3)
(21.3)
(21.3)
35
26
16
16
6
(10.6)
(7.9)
(4.8)
(4.8)
(1.8)
70
70
70
70
66
61
(21.3)
(21.3)
(21.3)
(21.3)
(20.1)
(18.5)
14
(4.2)
9
(2.7)
NA
NA
NA
NA
63
62
62
61
61
61
(19.2)
(18.8)
(18.8)
(18.5)
(18.5)
(18.5)
NA
70
70
63
56
50
43
(21.3)
(21.3)
(19.2)
(17.)
(15.2)
(13.1)
70
70
70
70
70
70
(21.3)
(21.3)
(21.3)
(21.3)
(21.3)
(21.3)
NA
16
11
(4.8)
(3.3)
(18.8)
6
NA
NA
68
63
62
57
57
56
(20.7)
(19.2)
(18.8)
(17.3)
(17.3)
(17.0)
46
41
28
23
22
13
(14.0)
(12.4)
(8.5)
(7.0)
(6.7)
(3.9)
70
70
70
70
70
70
(21.3)
(21.3)
(21.3)
(21.3)
(21.3)
(21.3)
33
24
15
14
5
(10.0)
(7.3)
(4.6)
(4.2)
(1.5)
70
70
70
66
61
56
(21.3)
(21.3)
(21.3)
(20.1)
(18.5)
(17.0)
NA
65
58
51
44
38
31
(19.8)
(17.6)
(15.5)
(13.4)
(11.5)
(9.4)
59
59
58
57
57
56
(17.9)
(17.6)
(17.6)
(17.3)
(17.3)
(17.0)
70
70
70
70
70
70
(21.3)
(21.3)
(21.3)
(21.3)
(21.3)
(21.3)
Table 13--Maximum
ALTITUDE
FT (a)
UNIT MAX
INPUT
RATE
(BTUH)
60,000
80,000
4001 to
5000
(1219 to
1524)*
100,000
120,000
80,000
80,000
5001 to 6000
(1524 to
1829)*
100,000
120,000
60,000
80,000
6001 to 7000
(1829 to
2134)*
100,000
DIRECT
VENT
TERMINATION
TYPE
2 Pipe or 2-in.
(51 mm)
Concentric
2 Pipe or 2-in.
(51 mm)
Concentric
2 Pipe or 3-in.
(76 mm)
Concentric
2 Pipe or 3-in.
(76 mm)
Concentric
2 Pipe or 2-in.
(51 mm)
Concentric
2 Pipe or 2-in.
(51 mm)
Concentric
2 Pipe or 3-in.
(76 mm)
Concentric
2 Pipe or 3-in..
(76 mm)
Concentric
2 Pipe or 2-in.
(51 mm)
Concentric
2 Pipe or 2-in.
(51 mm)
Concentric
2 Pipe or 3-in.
(76 mm)
Concentric
Allowable Pipe Length - Ft. (M) (Continued)
(2-PIPE)
ONLY
PIPE
DIA
NON-DIRE
CT VENT
PIPE
(IN.)*
1-1/2
1-1/2
2 (51)
2 (51)
2 (51)
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
3 (76)
3 (76)
3 (76)1- no disk
NA
NA
3 (76)1-
41-no disk
41- no disk
(38)
1-1/2
120,000
(38)
2 (51)
2 (51)
2 (51)
2 (51)
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
3 (76)
3 (76)
3 (76)1- no disk
NA
NA
3 (76)1-
41-no disk
41- no disk
1-1/2
1-1/2
(38)
(38)
2 (51)
2 (51)
2 (51)
2 (51)
2-1/2
(64)
2-1/2
(64)
2-1/2
2-1/2
3 (76)
(64)
(64)
3 (76)
NA
3 (76)1- no disk
2 Pipe or 3-in.
(76 mm)
Concentric
(38)
2 (51)
1-1/2
NA
3 (76)1-
41-no disk
41- no disk
See Notes at the end of table
39
OF 90 ° ELBOWS
DIA
(IN.)*
(38)
NUMBER
(1 -PIPE)
ONLY
1
2
3
4
5
6
15
(4.6)
64
(19.5)
44
(13.4)
70
(21.3)
31
(9.4)
10
(3.0)
59
(17.9)
39
(11.8)
7O
(21.3)
22
(6.7)
5
(1.5)
58
(17.6)
26
(7.9)
70
(21.3)
13
(3.9)
NA
NA
NA
53
(18.1)
21
(6.4)
70
(21.3)
12
(3.6)
52
(15.8)
20
(6.0)
70
(21.3)
52
(15.8)
11
(3.3)
70
(21.3)
NA
NA
70
(21.3)
53
(18.1)
56
(17.0)
7O
(21.3)
14
(4.2)
6O
(18.2)
41
(12.4)
70
(21.3)
46
(14.0)
55
(16.7)
70
(21.3)
9
(2.7)
55
(16.7)
36
(10.9)
67
(20.4)
40
(12.1 )
54
(16.4)
70
(21.3)
62
(18.8)
33
(10.0)
53
(16.1)
70
(21.3)
57
(17.3)
26
(7.9)
52
(15.8)
70
(21.3)
52
(15.8)
20
(6.0)
52
(15.8)
70
(21.3)
NA
NA
NA
NA
54
(16.4)
23
(7.0)
49
(14.9)
18
(5.9)
48
(14.6)
17
(5.1)
47
(14.3)
8
(2.4)
7O
(21.3)
29
7O
(21.3)
21
(6.4)
67
(20.4)
35
(10.6)
52
(15.8)
7O
(21.3)
8
(2.4)
52
(15.8)
33
70
(21.3)
12
(3.6)
70
(21.3)
11
(3.3)
70
(21.3)
70
(21.3)
NA
NA
62
(18.8)
29
(8.8)
50
(15.2)
70
(21.3)
57
(17.3)
22
(6.7)
49
(14.9)
70
(21.3)
52
(15.8)
15
(4.6)
48
(14.6)
70
(21.3)
47
(14.3)
9
(2.7)
47
(14.3)
70
(21.3)
NA
NA
NA
NA
50
(15.2)
21
(6.4)
68
(20.7)
45
(13.7)
16
(4.8)
67
(20.4)
44
(13.4)
15
(4.6)
66
(20.1)
43
(13.1)
6
(1.8)
64
(19.5)
10
(3.0)
9
(2.7)
NA
NA
58
(17.6)
18
(5.4)
53
(16.1)
11
(3.3)
48
(14.6)
43
(13.1)
NA
NA
47
(14.3)
70
(21.3)
45
(13.7)
70
(21.3)
44
(13.4)
67
(20.4)
43
(13.1)
62
(18.8)
(8.8)
70
(21.3)
42
(12.8)
53
(18.1)
7O
(21.3)
13
(3.9)
57
(17.3)
38
(11.5)
7O
(21.3)
27
(8.2)
68
(20.7)
31
(9.4)
49
(14.9)
7O
(21.3)
(1o.o)
7o
(21.3)
19
(5.7)
63
(19.2)
24
(7.3)
48
(14.6)
70
(21.3)
Table
ALTITUDE
FT (i)
UNIT SIZE
(BTUR)
60,000
80,000
7001 to
8000
(2134 to
2438),
100,000
13--Maximum
Allowable
60,000
80,000
8001 to
9000
(2438 to
2743)*
100,000
PIPE DIA
(IN.)*
PIPE DIA
(IN.)*
1
2
3
4
5
6
2 Pipe or 2-in.
(51 mm)
Concentric
1 - 1/2 (38)
1 - 1/2 (38)
12
(3.6)
7
(2.1)
NA
NA
NA
NA
2 (51)
2 (51)
2 (51)
2 (51)
48
(14.6)
31
(9.4)
46
(14.0)
19
(5.7)
41
(12.4)
14
(4.2)
40
(12.1)
12
(3.6)
38
(11.5)
2 Pipe or 2-in.
(51 mm)
Concentric
53
(16.1)
36
(10.9)
66
(20.1)
25
(7.6)
65
(19.8)
17
(5.1)
63
(19.2)
8
(2.4)
62
(18.8)
7
(2.1)
60
(18.2)
59
(17.9)
NA
NA
63
(19.2)
20
(6.0)
58
(17.6)
13
(3.9)
53
(16.1)
7
(2.1)
48
(14.6)
43
(13.1)
38
(11.5)
NA
NA
NA
46
(14.0)
44
(13.4)
43
(13.1)
41
(12.4)
40
(12.1)
38
(11.5)
61
(18.5)
11
(3.3)
56
(17.0)
6
(1.8)
51
(15.5)
46
(14.0)
41
(12.4)
36
(10.9)
NA
NA
NA
NA
49
(14.9)
33
(10.0)
44
(13.4)
28
(8.5)
42
(12.8)
17
(5.1)
37
(11.2)
12
(3.6)
35
(10.6)
10
(3.0)
34
(10.3)
62
(18.8)
23
(7.0)
60
(18.2)
15
(4.6)
58
(17.6)
7
(2.1)
56
(17.0)
5
(1.5)
55
(16.7)
53
(16.1)
NA
NA
59
(17.9)
10
(3.0)
54
(16.4)
49
(14.9)
44
(13.4)
39
(11.8)
34
(10.3)
NA
NA
NA
NA
NA
41
(12.4)
30
(9.1)
39
(11.8)
25
(7.6)
37
(11.2)
20
(6.1)
35
(10.6)
15
(4.6)
34
(10.3)
10
(3.0)
2 Pipe or 3-in.
(76 mm)
Concentric
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
3 (76)
2 Pipe or 3-in.
(76 mm)
Concentric
no disk
NA
3 (76)t
4t no disk
4t no disk
2 Pipe or 2-in.
(51 mm)
Concentric
1 - 1/2 (38)
1 - 1/2 (38)
2 (51)
2 (51)
2 Pipe or 2-in.
(51 mm)
Concentric
2 (51)
2 (51)
2 Pipe or 3-in.
(76 mm)
Concentric
120,000
60,000
2 Pipe or 2-in.
(51 mm)
Concentric
80,000
2 Pipe or 2-in.
(51 ram)
Concentric
120,000
3 (76)
NA
2 Pipe or 3-in.
(76 mm)
Concentric
100,000
NUMBER OF 90 ° ELBOWS
TERMINATIO
N TYPE
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
3 (76)
3 (76)f
9001 to
10,000
(2743 to
3048)*
- Ft. (M) (Continued)
NON-DIRE
CT VENT
(1 -PIPE)
ONLY
DIRECT VENT (2-PIPE)
ONLY
3 (76)f
120,000
Pipe Length
2 Pipe or 3-in.
(76 mm)
Concentric
2 Pipe or 3-in.
(76 mm)
Concentric
3 (76)
no disk
NA
NA
NA
NA
3 (76)t
4t no disk
4t no disk
43
(13.1)
35
(10.6)
2 (51)
2 (51)
45
(13.7)
40
(12.1)
38
(11.5)
33
(10.0)
31
(9.4)
29
(8.8)
2 (51)
2 (51)
30
(g. 1)
25
(7.6)
14
(4.2)
9
(2.7)
7
(2.1)
NA
57
(17.3)
21
(6.4)
55
(16.7)
13
(3.9)
53
(16.1)
5
(1.5)
51
(15.5)
49
(14.9)
47
(14.3)
NA
NA
NA
54
(16.4)
39
(11.8)
10
(3.0)
49
(14.9)
37
(11.2)
5
(1.5)
44
(13.4)
35
(10.6)
39
(11.8)
33
(10.0)
34
(10.3)
31
(9.4)
29
(8.8)
29
(8.8)
NA
NA
NA
NA
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
2-1/2
(64)
3 (76)
3 (76)
NA
3 (76)t
4t no disk
4t no disk
*Disk usage - Unless otherwise specified, use perforated disk assembly (factory-supplied in loose parts bag). If one disk is stated, separate 2 halves of
perforated disk assembly and use shouldered disk half. When using shouldered disk half, install screen side toward inlet box.
tWide radius elbow.
SVent sizing for Canadian installations over 4500 ft (1370 M) above sea level are subject to acceptance by the local authorities having jurisdiction. NA-Not
Allowed; pressure switch will not make.
NOTES:
1. Do not use pipe size greater than those specified in table or incomplete combustion, flame disturbance, or flame sense lockout may occur.
2. Size both the combustion-air
and vent pipe independently, then use the larger diameter for both pipes.
3. Assume
two 45 ° elbows equal one 90 ° elbow. Wide radius elbows are desirable
4. Elbows and pipe sections within the furnace casing and at the vent termination
5. The minimum pipe length is 5 ft (2 M) for all applications.
6. Use 3-in. (76 mm) diameter vent termination
kit for installations
and may be required in some cases.
should not be included
requiring 4-in. (102 mm) diameter pipe.
40
in vent length or elbow count.
5. Be certain
connection
that
mating
surfaces
of inducer
elastomeric
(rubber)
coupling,
and
mm) diameter vent
elastomeric
(rubber)
pipe are clean
vent coupling
housing
2-in. (51
4. Chamfer
outside
edge
primer and cement.
and dry. Assemble
the
(with 2 loose clamps)
5. Clean and dry all surfaces
6. Check
onto inducer housing connection.
Insert the 2-in. (51 mm)
diameter
vent
pipe
through
the elastomeric
(rubber)
coupling
and fully into inducer housing connection
until it
touches
a stop inside the inducer housing outlet.
the screws on both clamps to 15-in-lb. of torque,
inducer
housing.
Tighten
the clamp
screws
Starting
at furnace,
(6 mm) per linear
slope vent pipe a minimum
ft with no sags between
distribution
of
to be joined.
dry fit of pipe and mark insertion
end of pipe
depth
on pipe.
to insertion
mark.
Quickly
apply
approved
cement to end of pipe and fitting socket (over primer).
Apply cement in a light, uniform coat on inside of socket
to prevent buildup of excess cement. Apply second coat.
of
torque.
NOTE:
for better
7. After
pipes
have
been
cut and preassembled,
apply
generous layer of cement primer to pipe fitting socket and
Tighten
pipe to
to 15 in.-lb,
of pipe
8. While cement is still wet, twist pipe into socket with
turn. Be sure pipe is fully inserted into fitting socket.
of 1/4-in.
hangers.
9. Wipe excess
cement will
1/4
cement
from joint. A continuous
bead of
be visible
around
perimeter
of a properly
made joint.
UNIT
DAMAGE
HAZARD
10. Handle
Failure to follow this caution may result in unit component
damage.
supportive
combustion
Inducer housing outlet cap must be installed and fully seated
against inducer housing. Clamp must be tightened to prevent
any condensate leakage.
6. Install
casing
hole
filler
parts bag) in unused
Attachment
Furnaces
with
100,000
(factory-supplied
vent pipe casing
of Vent Extension
PVC vent extension
cap
Btuh
hole.
input
are supplied
(51 mm) diameter
with
by 12-in.
on ALL upflow
NOTE:
and downflow
See label on vent extension
This pipe may be shortened
extension
Guidelines
until
the
cement
venting
sets.
system
support.
and vent
portions
a
14. Use
(305
of the venting
the accumulation
appropriate
methods
system
is
is used
to
seal
combustion
air pipe (if applicable)
through roof or sidewall.
COMBUSTION-AIR
openings
and vent
1. Attach
all
permanently
combustion
in sections
2. Working
that
before
PIPE GROMMET
installation.
to connect
UNUSED
1-3/4 -IN. (44 mm)
DIAMETER
GAS
HOLE
vent
Air Pipe and Vent
illi0 _-- GAS
L,NE
ENTRY
pipes
be
cementing
cut,
prepared,
inside
FILLER
PLUG
and
any joint.
Air Pipe"
furnace
to outside,
and outside
of pipe.
and "Vent Pipe."
cut
pipe
to required
NOTE:
length(s).
3. Deburr
pass
air pipe and vent pipe per instructions
"Combustion
from
where
pipe
vent pipe.
for Combustion
recommended
or
shall be installed
HOLE
pre-assembled
be
Support
piping a
of condensate.
Pipe
It
shall
applications.
pipe for proper
if an elbow
tube to field-installed
Installation
of
to
prevent
sagging
air piping (if applicable)
so as to prevent
mm) long). This pipe has a built-in
channel
to assist vent
condensate
disposal. When this vent extension pipe is supplied,
it
MUST be used to connect the field vent pipe to furnace inducer
housing
carefully
12. Slope combustion
air piping (if applicable)
and vent piping
downward
towards furnace a minimum
of 1/4 in. (6 mm)
per linear ft with no sags between hangers.
in loose
13. Horizontal
and larger
portions
minimum
of every 5 ft (2 M) (3 ft or .9 M for SDR-21
-26 PVC) using perforated
metal hanging strap.
Pipe
pipe (2-in.
pipe joints
11. Horizontal
PIPE GROMMETS
AND ENTRY HOLE FILLER
PLUGS ARE INCLUDED
IN FACTORY-SUPPLIED
LOOSE PARTS BAG
A05057
A05057
Fig. 40 - Typical
41
Gas
Pipe Arrangement
EXAMPLE:
(
An 080-12 size furnace located in Indianapolis, elevation
650 fl (198 M) above sea level, could be installed as either a
direct vent/2-pipe system that requires 3 elbows and 32 fl (10
M) of vent pipe, along with 5 elbows and 34 fl (10 M) of
combustion-air pipe OR a non-direct vent/I-pipe system that
requires 3 elbows and 32 fl (10 M) vent pipe.
FURNACE
For a direct vent/2-pipe system, Table 13 indicates this
application would allow a 2-in. (51 mm) diameter vent pipe,
but require a 2-1/2 in. (64 mm) diameter combustion air pipe.
According to Table 13, 2-in. (51 mm) diameter pipe is good
for 35 fi (11 M) with 3 elbows, but only 30 ft (9 M) with 5
elbows. Therefore, 2-1/2 in. (64 mm) diameter pipe must be
used for both vent and combustion-air pipes since larger
required diameter must always be used for both pipes.
NOT IN
HORIZONTAL
SECTION
TRANSITION iN
VERTICAL SECTION
A93034
For a non-direct vent/I-pipe system, Table 13 indicates that
this application would allow a 2-in. (51 mm) diameter vent
pipe.
If same installations were in Albuquerque, elevation 5250 ft
(1600 M) above sea level:
Fig. 41 - Combustion-Air
and Vent Pipe Diameter
Transition Location and Elbow Configuration
COMBUSTION
AIR
TAKE HOUSING
3/8 ID TUBE --
7
--_
D I1,
For a direct vent/2-pipe system, Table 13 indicates that 2-1/2
in. (64 mm) diameter vent pipe and combustion-air pipe are
required.
BURNER
BOX
--
j_.-_
['1,
COMBUSTION-AIR
I _PIPE
(DIRECT
VENT/2 PIPE)
b_€
For a non-direct vent/I-pipe system, Table 13 indicates that
2-1/2-in. (64 mm) diameter vent pipe is required.
\
If same applications are to be installed
(1524 to 1829 M)elevation:
COMBUSTION-AIR
PIPE (NON-DIRECT
VENT/I-PIPE)
For a direct vent/2-pipe system, 2-in. (51 mm) pipe is only
good for 23 ft (7 M) (with 3 elbows) and 17 fl (5 M)(with 5
elbows). Therefore, 2-1/2 in. (64 mm) diameter combustion air
and vent pipe must be used.
TRAPJt
TO OPEN
DRAIN
--
For a non-direct vent/I-pipe
system, a 2-in. (51 mm)
diameter pipe is only good for 23 fl (7 M) with 3 elbows. A
2-1/2-in. (64 mm) diameter vent pipe must be used.
A05093
Fig. 42 - Air Intake
at 5001 to 6000 fi
Housing Plug Fitting Drain
42
--12MN
1
-,_l--_
12" MI N ------B_ I
(305mm)
VENT
PIPE
0
HORIZONTAL
L
U
--
TO ROOF
HORIZONTAL
F
VENT
COMBUSTION-AIR
PIPE
PIPE
VENT
VERTICAL
TO ROOF
PIPE
TO SIDEWALL
COMBUSTION-AIR
COMBUSTION-AIR
_
VERTICAL
PIPE
TO SIDEWALL
NOTE: A 12-in. (304.8mm) minimum offset pipe section is recommended
with short (5 to 8 ft / 1.5 to 2.5M) vent systems. This recommendation
is to reduce excessive condensate
droplets.
A96230
Fig. 43 - Short
VENT
Vent (5 to 8 ft (1.5 to 2.4 M)) System
TERMINATION
building
airborne
flue
gases,
4. Termination
or termination
kit should be positioned
it will not be damaged
by or subjected
to foreign
such as stones, balls, etc.
where
objects
General
Combustion-air
(direct
must terminate
outside
For vent termination
Vent/2-Pipe
system
vent/2-pipe
system only) and vent pipe
structure,
either through sidewall
or roof.
clearance,
refer to Table 8 for Direct
and
Table
9
for
Non-direct
5. Termination
Vent/I-Pipe
system.
For
exterior
piping
arrangements,
refer
Fig. 44 for Direct
Vent/2-Pipe
system
and
Fig.
45
Non-Direct/I-Pipe
system.
vent vapors
to
for
Extended
termination
require
sealing
with a corrosive
resistance
combustion
products
or shielding
material
due
of building
to corrosive
ambient
When
Vent/2-Pipe
of vent system.
determining
the following
1. Comply
or Table
System
Only)"
appropriate
for termination,
all clearance
or termination
vent
vapors
will
not
conditioning
equipment.
3. Termination
it will not
by insulating
stated
consider
in Table
8
damage
be positioned
plants/shrubs
where
or
pipe as indicated
in Table
air
pipe
10.
diameter
(direct
design
temperature
required
(used
in
load
for
your
for exposed
pipe
temperature
insulation
thickness
length(s).
NOTE:
kit should
where
Pipes
combustion
winter
3. Determine
requirements
Sidewall
calculations),
find
appropriate
application
and furnace model.
9 per application.
2. Termination
Exposed
2. Using
guidelines:
with
be positioned
vent/2-pipe
system only) and vent pipe diameter,
as stated
above, using total pipe length and number of elbows.
in this instruction.
location
kit should
are not objectionable.
1. Determine
NOTE:
(Direct Vent/2-Pipe
system ONLY). A factory accessory
termination
kit MUST be used. See section "Vent Termination
Kit
(Direct
or termination
of
Sidewall
combustion
air pipe termination
(direct
vent/2-pipe
system only) and vent pipe termination
may be extended beyond
area shown in Fig. 44 or in Fig. 45 per application
in outside
Roof termination
is preferred
since
it is less susceptible
to
damage or contamination,
and it has less visible vent vapors.
Sidewall
surfaces
corners,
nor by recirculation
leaves, or light snow.
located
air
Pipe
pipe length
as specified
Vent Termination
or termination
kit should be positioned
so that
be affected
by wind eddy, such as inside
NOTE:
Always
latest version.
43
length
in unconditioned
(ft)
specified
spaces
in Table
Kit (Direct
for maximum
cannot
exceed
pipe
total
lengths
allowable
13.
Vent/2-Pipe
refer to the instructions
System
Only)
in termination
kit for the
Table
14 DIRECT VENT (2-PIPE) TERMINATION
Vent Termination
KIT
Kit for Direct
TERMINATION
Vent/2-Pipe
DIAM, OF COMBUSTION AIR AND VENT
PIPES - IN (mm)
SYSTEM
2-in. (51 mm) Concentric
Vent Kit
Single Penetration of Wall or Roof
3-in. (76 ram)Concentric
Vent Kit
Single Penetration of Wall or Roof
2-in. (51 ram)Termination
Bracket
Kit
2-Pipe
Termination
System
3-in. (76 ram) Termination
Bracket
Kit
2-Pipe
Termination
System
Rool _
rmlnatlon
System
1, 1 - 1/2, 2, or 2-1/2
2-1/2,
1, 1-1/2
2-1/2,
(25, 38, 51,64 mm)
3 or 4 (64, 76, 102 mm)
or 2 (25, 38, 51 mm)
3 or 4 (64, 76, 102 mm)
(Preferred)
At Feast 36 in
(914mm)
Con c_mtric V#nt and Combustion
Roo f f_r ruination (preferred)
Air
..................
Vertical
separation
between
combustion
air and vent
Maintain 12 in (3O5mm)
min clearance
above
highest anticipatod
snow level maximum of
24 i{I above roof
"-,.
Maintain
12 in (3O5mm)min
clearance
above
.........
_ _go_ % vaen
................
i
.............
A05090
Fig. 44 - Combustion
Air and Vent Pipe Termination
Roof Termination
for Direct
Vent
(2-pipe)
System
(Preferred)
.... I--..
Maintain
12 in
3O5mm
"
"""
above highest
anticipated
snow [evel maximum
of
24 _n (610ram)
abov_
roof
_.
Abandoned masonry
used as raceway
(per code)
"\\
overhang
or roof
whichever
w_th Sha[ght
Maintain
12 in
_s greater
P_pe (preferred)
3O5mm
m[n[mu m c earance
above
highest anticipated
s_qow level or grade
"_Mchever
_s greater
Side wall termination
w_th 2 elbows
(preferred)
\\\\\\\\\
A05091
Fig. 45 - Vent Pipe Termination
for Non-Direct
44
Vent (1-pipe)
System
(Direct Vent/2-Pipe System ONLY) - When 2 or more 58MTB
furnaces are vented near each other, 2 vent terminations may be
installed as shown in Fig. 44, but next vent termination must be at
least 36 in. (914 mm) away from first 2 terminations. It is
important that vent terminations be made as shown in Fig. 44 to
avoid recirculation of flue gases.
Combustion
air and vent pipes MUST terminate outside structure.
A factory accessory
termination
kit must be installed as shown in
Table
14.
termination
NOTE:
There
are four options
of vent/combustion
kits available
as shown in Table 14.
Combustion
air pipe
must
have
the same
air
diameter
as
vent pipe.
Concentric
Vent/Combustion
Vent/2-Pipe
System
Air Termination
Determine
an appropriate
location for termination
guidelines
provided
in section "Vent Termination:
this instruction.
1. Cut one 4-in. (102
mm)
diameter
3. Slide
NOTE:
inside
assemble
components
assembled
through
kit
Do not allow
terminations
with rain shield
4. Disassemble
loose
same procedures
5. Check
required
Termination
guidelines
provided
this instruction.
pipe
dimensions
Kit (Direct
in section
1. Cut 2 holes, 1 for each
size being used.
through
roof
and cement
pipe,
System
Termination:
of appropriate
2. Loosely install elbow in bracket and place
combustion-air
pipe.
Roof terminations
- Loosely
install pipe
properly
cut vent pipe. Coupling
must
bracket will mount as shown in Fig. 44.
using
making
Only)
kit using
the
General"
in
size
for pipe
assembly
on
coupling
on
be positioned
so
a U-fitting.
Multi-venting
When
required
The furnace, A/C, and humidifier drains may be combined and
drained together. The A/C drain must have an external,
field-supplied trap prior to the furnace drain connection. All drain
connections (furnace, A/C, or humidifier) must be terminated into
an open or vented drain as close to the respective equipment as
possible to prevent siphoning of the equipment's drain.
in Fig. 44.
dimensions
as shown
using
See Fig. 46 for example of possible field drain attachment using
1/2-in. (13 mm) CPVC or PVC tee for vent and A/C or humidifier
drain connection.
in Fig. 44.
and Vent Terminations
2 or more 58MTB
Furnaces
each furnace must be individually
or breach vent 58MTB furnaces.
are vented
vented.
intermittent
Furnace condensate is mildly acidic, typically in the pH range of
3.2 to 4.5. Due to corrosive nature of this condensate, a
condensate pH neutralizing filter may be desired. Check with
local authorities to determine if a pH neutralizer is required.
APPLICATION
A 180 ° U-fitting
3. Disassemble
loose pipe fittings. Clean and cement
same procedures
as used for system piping.
4. Check
in
When a condensate pump is required, select a pump which is
approved
for condensing
furnace
applications.
To avoid
condensate spillage, select a pump with an overflow switch.
Sidewall
terminations
- Install bracket as shown in Fig.
44. For applications
using vent pipe option indicated
by
dashed
lines in Fig. 44, rotate vent elbow
90 ° from
shown
result
The field drain connection (condensate trap or drain tube
coupling) is sized for 1/2-in. (13 mm) CPVC, 1/2-in. (13 mm)
PVC, or 5/8-in. (16 mm) ID tube connection.
Drain pipe and fittings must conform to ANSI standards and
ASTM D1785, D2466 or D2846. CPVC or PVC cement must
conform to ASTM D2564 or F493. Primer must conform to
ASTM F656. In Canada, use CSA or ULC listed schedule 40
CPVC or PVC drain pipe, fittings, and cement.
For
applications
using
combustion-air
pipe
option,
indicated
by dashed
lines in Fig. 44, install
90 ° street
elbow into 90 ° elbow,
may be used.
may
An external trap is not required when connecting the field drain
to this condensate trap.
in Fig. 44.
for termination
"Vent
caution
Condensate trap is shipped installed in the blower shelf and
factory connected for UPFLOW applications. Condensate trap
must be RELOCATED
for use in DOWNFLOW
and
HORIZONTAL applications.
to
piping.
Vent/2-Pipe
location
this
Condensate trap MUST be used for all applications.
Clean
as shown
OPERATE
GENERAL
hole.
in Fig. 44.
fittings.
NOT
Unit must not be installed, operated,
and then turned off and
left in an unoccupied
structure
during cold weather
when
temperature
drops to 32°F (0°C) and below unless drain trap
and drain line have adequate freeze protection.
See Service
and Maintenance
Instructions
for winterizing
procedure.
air
in kit.
Locate
assembly
through
positioned
no more than 1-in. (25
as used for system
an appropriate
position
Drain
to accumulate
it through
- Locate
assembly
as shown in Fig. 44.
MAY
Failure
to follow
unit operation.
REMOVED
or other materials
from wall as shown
Determine
vent/combustion
using instructions
rainshield
when installing
Roof terminations
appropriate
height
Two-Pipe
(51 mm)
hole for 3-in. (76 mm)
with
insulation
of pipe assembly
mm)
concentric
together
UNIT
hole.
Sidewall
sidewall
11 - Condensate
kit using the
General"
in
hole for 2-in.
kit, or one 5-in. (127 mm) diameter
kit.
2. Loosely
termination
Step
Kit (Direct
Only)
near each
NEVER
common
other,
Outdoor draining of the furnace is permissible if allowed by local
codes. Caution should be taken when freezing. Ambient may
freeze drain pipe and prohibit draining.
vent
45
__/
\__
CONDENSATE
PIPE FOR
A/C OR
HUMIDIFIER
OPEN STAND/
DRAIN
WIRE
(3 WRAPS
TIE
HEAT
MINIMUM)
A94054
Fig. 46 - Example
of Field
Drain
Attachment
A93036
Fig. 47 - Condensate
Trap Heat Tape
Step 1 - General
PERSONAL
INJURY
The furnace must have a 115-v power
and grounded.
HAZARD
Caution should be taken to prevent draining
conditions may cause personal injuries.
Excessive
conditions
condensate
draining
may
which could result in damage
where
slippery
cause
saturated
to plants.
soil
NOTE:
Proper
maintained
for 115-v wiring.
indicator
light will flash rapidly
Thermostat
line may
If freeze
required
2-stage
cooling,
protection
is required, use condensate
freeze protection
accessory
or equivalent
3 to 6 watt per ft at 120-v and 40°F (4°C)
self-regulating,
shielded,
and
waterproof
heat
tape.
See
Installation
Instructions
supplied
manufacturer's
recommendations.
with
1. Fold heat tape in half and wrap
2. Locate
heat tape
between
accessory
on itself
or
heat
made
tape
3 times.
sides of condensate
trap
positioned
in notches
heat tape in place.
Wire
of condensate
sides.
trap
back.
ties can be
(See
approximately
5. When using
manufacturer's
drain
pipe
1 wrap
with
remaining
heat
tape,
per ft.
field-supplied
instructions
heat tape, follow
heat tape
for all other
installation
guidelines.
START-UP ADJUSTMENT
SAFETY CHECK
FURNACE
MAY NOT
wire
for gas
connections
heating
must
control
be
status
will not operate.
0.5 psig (14-in.
at R and W/W1
operation.
connected
W2 must
wc),
are the minimum
be connected
for
heating thermostats.
COM, Y/Y2, and G are required for
heat pumps, and some clock thermostats.
These must be
at the 24-v
terminal
block
on the control.
This furnace can be installed
a 2-stage heating thermostat.
with either
For single-stage
connect
and Table
field
grounding
is incorrect,
and the furnace
thermostats,
low- and high-gas
heat for optimum
(SW-1) must be in the factory-shipped
Fig.
47.)
4. Wrap
proper
properly
(See Fig. 37.)
a single-stage
thermostat
heating
or
W to W/W1
at
furnace
control
terminal
block.
(See Fig. 31 and 50H.) For
single-stage
thermostats,
the control will determine,
based on
length of previous heating on and off cycles, when to operate in
(See Fig. 47.)
3. Use wire ties to secure
and
If polarity
Natural gas service pressure must not exceed
and be no less than 0.16 psig (4.5-in. wc).
CONDENSATE DRAIN PROTECTION
Freezing
condensate
left in condensate
trap and drain
cause cracks, and possible
water damage
may occur.
polarity
supply
AND
OPERATE
Failure to follow this caution may result in furnace operation
stopping and water pipes freezing during cold weather.
Furnace control must be grounded
for proper operation,
or
control will lockout. Control is grounded through green/yellow
wire connected to gas valve C-terminal and burner box screw.
46
11 and 12 for setup
switch
comfort.
Setup switch-1
OFF position. See Fig. 36
information.
FIRE HAZARD
Failure to follow this caution may result
operation or performance
satisfaction.
in intermittent
unit
This furnace is equipped with a manual reset limit switch in
the burner box area. The switch will open and shut off power
to the gas valve if a flame rollout or overheating
condition
occurs in the burner enclosure
area. DO NOT bypass the
switch. Correct inadequate
combustion-air
supply, component
failure,
or restricted
flue gas passageway
before
resetting
the switch.
Step 2 - Prime Condensate
\
UNIT
MAY
NOT
Trap With Water
OPERATE
Failure to follow this caution may result
operation or performance
satisfaction.
Housing
Drain
Tube
unit
Condensate
trap must be PRIMED or proper draining may not
occur. The condensate
trap has internal chambers which can
ONLY be primed by pouring water into the inducer drain side
of condensate trap.
A99118
Fig. 48 - Inducer
in intermittent
Cap
If a 2-stage heating thermostat
is to be used, move SW-1 to ON
position
at end of furnace
installation.
This overrides
built-in
1. Remove upper
Fig. 48.)
inducer
housing
drain
connection
cap. (See
control process for selecting
high and low fire and allows the
2-stage thermostat
to select gas heating modes. The W2 from
thermostat
must be connected
to W2 on control terminal
block.
2. Connect field-supplied
1/2-in. (13 mm) ID tube to upper
inducer housing drain connection.
(See Fig. 32 and 50-57.)
3. Insert
field-supplied
4. Pour
1 quart
Before
operating
furnace,
check
each
flame
rollout
manual
reset
switch for continuity.
If necessary,
press and release button
reset switch. The blower compartment
door must be in place
complete
the l15-v
circuit
to
to
through
inducer
flow into open
to the furnace.
funnel
of water
into
housing,
into tube.
funnel/tube.
overfill
field drain.
Water
should
run
condensate
trap,
and
(See Fig. 49.)
5. Remove funnel and tube from inducer
drain connection
cap and clamp.
Step 3 - Purge
housing
and replace
Gas Lines
After
all connections
check for leaks.
have been
FIRE AND EXPLOSION
made,
purge
the gas lines
and
HAZARD
Failure to follow this warning
personal injury, or death.
could result in a fire, explosion,
never purge a gas line into a combustion
chamber. Never test
for gas leaks with
an open flame.
Use a commercially
available soap solution made specifically
for the detection of
leaks to check all connections,
as specified
in "Gas Piping"
and "Start-up
Adjustment,
and Safety Check"
sections
of
these instructions.
Step 4 - Sequence
Using schematic
operation
through
very carefully.
NOTE:
A99119
Fig. 49 - Filling
Condensate
Trap
or W/W1
selected
blower
thermostat
flash
interruption
occurs
and W2), the control
off delay
is still
calling
code 12 during
continuous
furnace
diagram
in Fig. 36, follow
the sequence
of
the different modes. Read and follow diagram
If power
(W/W1
of Operation
period
power
for gas heating.
this period,
as long as no faults
will respond
after
during
after which
are detected.
to the thermostat
"call
for
will run the blower
heat"
for the
is restored,
The
amber
if the
LED
will
the LED will be ON
After this period,
the
normally.
The blower
door must be installed
for power to be conducted
through
blower
door interlock
switch ILK to furnace
control
47
CPU,transformer
BLWM,
TRAN,
hot surface
TWO-STAGE
inducer
igniter
HEATING
THERMOSTAT
WITH
(ADAPTIVE
(See Fig. 31 for thermostat
NOTE:
low-heat-only
mode
OFF, in response
This furnace
can operate
blower
motor
control
three
GV.
SINGLE-STAGE
SEC1
SW-1,
when
ON,
selects
or
either
adaptive
the
furnace
or SEC2
to the furnace
heating
high speed
with a single-stage
until flame
5. Blower-On
thermostat
because furnace control CPU includes
a programmed
adaptive sequence of controlled
operation,
which selects low-gas-
Delay
motor BLWM
opened.
heat or high-gas-heat
operation.
This selection is based upon the
stored history of the length of previous gas heating on/off periods
of the single-stage
thermostat.
is no longer
- If burner
is energized
Low-heat
- The blower
HEAT speed.
proved.
flame
motor
BLWM
low-gas heat on time (from 0 to 16 minutes)
before switching
to high-heat.
is energized
and remains energized
motor BLWM is energized.
If power
happens,
6. Switching
is interrupted,
the stored history is erased. When this
the control CPU will initially select low-heat
for up to
control
furnace
16 minutes and then switch to high-heat,
as long as the thermostat
continues
to "call for heat." Subsequent
selection
is based on
stored history of thermostat
cycle times.
When
wall
thermostat
The furnace
control
"calls
for heat",
performs
R-W/W1
a self check,
circuit
verifies
and high-heat
pressure
switch contacts
LPS and HPS
and starts inducer motor IDM in high speed.
1. Inducer
Prepurge
Period
selects low-heat
operation
up to speed,
the furnace
period.
furnace
- If the furnace control CPU
the inducer motor IDM comes
the low-heat
pressure
control
CPU begins
After the low-heat
control
CPU will
period, and
high-speed.
continue
are open,
motor
IDM
low-heat
operate
pressure
switch
at low-heat
gas
pressure
switch
after ignition.
closes
for
of
warm-up
seconds
begins.
flame
period
is sensed
begins.
4. Flame-Proving
flame-proving
IDM switches
and the furnace
the
2-second
flame
CPU begins
the blower-ON
switch
When
pressure
gas valve solenoid
BLWM will switch
the furnace control
- The control
CPU
- When
the thermostat
de-energizing
is satisfied,
the
gas
the
valve
energized
for a 15-second
post-purge
motor BLWM and air cleaner terminal
remain
energized
for 90,
120, 150,
on selection
at blower-OFF
control CPU is factory-set
or 180 seconds
delay switches).
for a 120-second
delay.
HEATING
WITH
TWO-STAGE
(NON-ADAPTIVE
for thermostat
the low-heat
In this mode,
the low-heat
only operation
R-to-W1
circuits
period.
EAC-1
circuit.
always
HEATING
connections).
only switch
mode
Closing
causes
of the low-heat-only
MODE)
in response
the
high-heat
must be ON to
to closing
thermostat
operation,
the
R-to-W1
regardless
of
switch.
for heat", closing the R to W1 circuit
the R to W1 and-W2
circuits
for
high-heat.
The furnace control performs
a self-check,
verifies the
low-heat
and high-heat
pressure switch contacts LPS and HPS are
open, and starts the inducer motor IDM in high-speed.
The
start-up
and
shutdown
functions
and
delays
described
in
except
for
item 1 above apply to 2-stage heating mode as well,
switching
from low-to high-heat
and vice versa.
proving
1. Switching
From Low- To High-Heat
- If the thermostat
R to W1 circuit is closed and the R to W2 circuit closes,
the furnace
control CPU will switch the inducer
motor
- When burner flame is proved
at the
sensor electrode
FSE, the inducer
motor
to low-speed
unless running at high-speed,
control
high-heat
is opened,
The wall thermostat
"calls
for low-heat
or closing
warm-up
closes, a 2-second
flame period
will remain energized
until the
or until
- If the furnace
to high-heat.
NOTE:
and-W2
The gas valve GV permits gas flow to the burners
it is ignited by the Hot Surface Igniter HSI. Five
after the GVR
The HIS igniter
the
To Low-Heat
(See Fig. 32 and 50-56
thermostat
period is completed
the main gas valve relay contacts
GVR close to energize the gas valve GV, the gas valve
opens.
where
delay
THERMOSTAT
2 minutes
the igniter
High-
circuit
blower-OFF
the setting
- When
available
low-heat
TWO-STAGE
the
the
- At end of the inducer prepurge period,
Igniter HSI is energized
for a 17-sec
Sequence
is
from
From
(depending
The furnace
period.
3. Trial-For-Ignition
as the blower
The high-heat
pressure
to close the NC contact.
CPU switches
will
closes,
the furnace
will
rate until the high-heat
a maximum
To High-Heat
and the high-heat
The blower motor
five seconds after
will remain
The blower
select
2. IgniterWarm-Up
the Hot Surface
igniter
LPS
flow
at LO
GV-M, stopping gas flow to the burners, and de-energizing
the humidifier
terminal
HUM. The inducer
motor IDM
the high-heat
pressure
switch
HPS
closes,
and the
high-heat
gas valve
solenoid
GV-HI is energized.
The
furnace control CPU begins a 15-second
prepurge period
pressure
switch
LPS closes.
If
switch
HPS fails to close
and
pressure
R to W
high-heat
pressure
switch relay HPSR is de-energized
to
close the NC contact. When sufficient pressure is available
low-heat
pressure
Low-
as long
switch HPS closes,
GV-HI is energized.
to HI HEAT speed
8. Blower-Off
at
If the furnace control CPU selects high-heat
operation, the
inducer motor IDM remains running at high-speed,
and the
after the
high-heat
is energized
is
will not switch
from high-heat
to low-heat
while the
thermostat
R-to-W
circuit is closed when a single-stage
thermostat is used.
switch LPS closes, and
a 15-second
prepurge
the inducer
From
7. Switching
pressure
switch re-closes
the
begin a 15-second
prepurge
to run
GV-M
CPU switches
from low-heat
to high-heat,
the
control CPU will switch the inducer motor IDM
sufficient
closes.
the blower
BLWM is energized
at HI HEAT speed.
the electronic
air cleaner terminal EAC-1
speed from low to high.
relay HPSR is de-energized
the low-heat
is proven
66 sec after gas valve
Hi-heat
- The
Simultaneously,
is permitted
CPU (not at W/Wl,
when flame should not be
CPU will
lock
out of
the inducer motor IDM on
The furnace will start up in either low-or high-gas
heat. If the
furnace starts up in low-gas heat, the control CPU determines
the
which
sequence
for up to
before
going
to
control
G, R, etc.). If flame is proved
present,
the furnace
control
Gas-Heating
mode and operate
to a call for heat. (See Fig. 37.)
as a 2-stage
CPU will repeat the ignition
more
Trials-For-Ignition
Ignition-Lockout.
Lockout
will be reset
automatically
after three hours, by momentarily
interrupting
115 vac
power to the furnace, or by interrupting
24 vac power at
MODE)
switch,
operation
IDM,
connections.)
Low-heat-only
mode when
motor
HSI, and gas valve
IDM speed from low to high. The
switch
relay HPSR
is de-energized
delay
contact.
period and continues
to hold the gas valve GV-M open. If
the burner flame is not proved
within two seconds,
the
control
CPU will close the gas valve GV-M,
and the
48
When
sufficient
pressure
pressure
switch
HPS
closes,
solenoid
GV-HI
is energized.
high-heat
to close
is available
the high-heat
and the high-heat
The blower
pressure
the NC
motor
gas valve
BLWM
willswitch
toHIHEAT
speed
fiveseconds
aftertheRto
W2circuit
closes.
2.Switching From High-To Low-Heat - If the thermostat R
G-and-Yl-and-Y/Y2
motor
to W2 circuit opens, and the R to Wl circuit remains
closed, the furnace control CPU will switch the inducer
motor
IDM speed
from high to low. The high-heat
pressure
switch relay HPSR is energized
to open the NC
contact
and de-energize
the high-heat
gas valve
COOLING
1. Single-Speed
solenoid
terminal
seconds.
opens.
EAC-1
control
The outdoor
motor BLWM
additional
will continue
to 5 seconds.
2. Two-Speed
Cooling
(Adaptive
cooling
This furnace
includes
for thermostat
can operate
single-stage
The
the cool-
Thermostat
thermostat
because
which
operation.
This selection
the length
thermostat.
of previous
the furnace
adaptive
selects
cooling
sequence
low-cooling
is based
cooling
control
CPU
history
the
EAC-1
Jumper
high-cooling
upon the stored
to enable
relay
disable
seconds.
of
the adaptive
cooling
mode
ACRDJ
is satisfied,
unit staging.
must
in response
(See Fig. 37.)
switch
the
outdoor
either low-or
the furnace
control
CPU
high-cooling.
control
CPU
to
unit
can start up the cooling
If starting
determines
on-time (from 0 to 20 minutes)
switching
to high-cooling.
to
If the power
is interrupted,
unit in
is permitted
before
The
the stored
history
is erased
will
YI
is satisfied,
the
R-to-G-and-Yl
circuits are opened.
The
blower BLWM and electronic
remain
energized
for an
to DHUM
to reduce
the
for Thermidistat
cooling
operation
with a Thermidistat.
and
described
motor
BLWM
(same
speed
is based
speed,
on stored
and the R to G-and-Yl
starts the furnace blower motor
(same speed as LO HEAT).
BLWM
at low-cool
R-to
additional
90 seconds.
cooling
off-delay
to 5
the DHUM
is removed
should
DHUM.
input
is
from the
the DHUM input logic is
ON when no dehumidify
by the furnace control on
circuits
speed
If the furnace control CPU switches
from low-cooling
to
high-cooling,
the furnace control CPU will energize the air
conditioning
relay ACR. When the air conditioning
relay
ACR is energized
the R to Yl-and-Y2
circuits switch the
outdoor
unit to high-cooling
speed,
and the R to
49
above
the R to G-and-Yl
a demand
The wall thermostat
"calls for cooling",
closing the R to
G-and-Y
circuits.
The R to YI circuit starts the outdoor
unit on low-cooling
or
outdoor
unit stops,
air cleaner terminal
connections.)
The exceptions
ACR to energize the Y/Y2 terminal and switch the outdoor
unit to high-cooling,
as long as the thermostat
continues
to
call for cooling.
Subsequent
selection
history of the thermostat
cycle times.
with
MODE
a. When
control CPU will select
and then energize
the
start the
(See Fig. 37.)
low-cooling
for up to
air conditioning
relay
the furnace
20 minutes
for
the DHUM input, the furnace control operates
in Thermidistat
mode. If the DHUM input is low or OFF for more than 48 hours,
the furnace control reverts back to non-Thermidistat
mode.
up in low-cooling,
the low-cooling
which
circuits
The dehumidification
output, DHUM on the Thermidistat
be connected
to the furnace control thermostat
terminal
high-cooling.
The furnace
for low-
circuits
The R to YI circuit starts the outdoor unit on
speed, and the R to G-and-Yl
circuit starts the
DHUM input terminal. In other words,
reversed.
The DHUM
input is turned
demand exists. Once 24 vac is detected
and
circuits
the R to G-and-Yl-and-Y2
energize
terminal
to
Thermostat
the R to G-and-Yl
When
there is a dehumidify
demand,
activated,
which
means 24 vac signal
Y/Y2
R
(See Fig. 37.)
a call for cooling.
(See Fig. 32.) When in place the furnace
control
CPU can turn on the air conditioning
relay ACR to
the
the
The outdoor unit stops, and
and electronic
air cleaner
and Two-Stage
closes
THERMIDISTAT
of the single-stage
jumper
Cooling
thermostat
(See Fig. 50-53
The air conditioning
thermostat
to 5 seconds.
or closes
G-and-Yl-and-Y2
and the furnace
a
of controlled
or
period
with
as
on at
The electronic
air cleaner
terminal
EAC-1
is energized
115 vac whenever
the blower motor BLWM is operating.
When
unit
the
high-cooling
speed, and the R to G-and-Y/Y2
furnace blower motor BLWM on COOL speed.
connections.)
a two-speed
a programmed
operation,
be connected
on COOL speed for an
Single-Stage
back
furnace blower
motor BLWM on low-cool
speed (same
speed as LO-HEAT).
R-to-Yl-and-Y2
circuits
start
the
outdoor
unit
on
blower
(See Fig. 37.)
and
speed
comes
EAC-1 will remain energized for an additional
90
Jumper
YI to DHUM
to reduce
the cooling
high-cooling.
low-cooling
Mode)
(See Fig. 31 and 50-57
NOTE:
operating
90 sec. Jumper Y/Y2 to DHUM to reduce
ing off-delay
When
of the outdoor
is ener-
unit will stop, and furnace
(same
the
the
air cleaner
terminal
EAC-1
is energized
whenever
the blower
motor
BLWM
is
The thermostat
gized with 115-v when blower motor BLWM is operating.
When the thermostat
is satisfied, the R-to-G-and-Y
circuits
are opened.
blower
(See Fig. 32 and Fig. 50-56 for thermostat
connections)
NOTE:
The ACRDJ must be disconnected
to allow thermostat
Cooling
terminal
speed
unit compressor
G-and-Y
circuit are opened.
the furnace
blower
BLWM
3. Two-Speed
air cleaner
at low-cool
the outdoor
operating.
for cooling".
The electronic
to run
until
The electronic
with
115 vac
(See Fig. 31 or 32 and 50, 52, or 54 for thermostat
connections.) The thermostat
closes R-to-G-and-Y
circuits. The Rto-Y circuit starts the outdoor unit, and R-to-G-and-Y/Y2
circuits start the furnace blower motor BLWM on COOL
speed.
furnace
continues
LO-HEAT)
high speed.
off-delay
"calls
the
BLWM
MODE
The thermostat
switch
speed.
When transitioning
from low-cooling
to high-cooling
unit compressor
will shutdown
for 1 minute while
long as the low-heat
pressure
switch LPS remains closed.
The blower motor BLWM will switch to LO HEAT speed
after the R to W2 circuit
circuits
to COOL
NOTE:
outdoor
GV-HI. When the inducer
motor IDM reduces
pressure
sufficiently,
the high-heat
pressure switch HPS will open.
The gas valve solenoid
GV-M will remain energized
as
five seconds
BLWM
circuit
for dehumidification,
will continue
as LO HEAT).
also applies
to operation
are listed below:
is closed
the furnace
running
and there is
blower
at low-cool
speed
THERMIDISTAT
THERMIDISTAT
HEAT STAGE
TWO-STAGE
FURNACE
2 I_-
NOTE 11
_1_
RVS
HEAT STAGE
1 I_-_
COOL STAGE
1 __
FAN _l
F_
24 VAC HOT __
DEHUMIDIFY
I_0__
SINGLE-SPEED
HEAT PUMP
1
F_q
-l_q
___
-l_-- ........
-l_q
-l_q
-p_
N/A I_
TWO-STAGE
FURNACE
SINGLE-SPEED
AIR CONDITIONER
COOLING_
NOTE 11
HEATSTAGE3_
(FURNACEHI)
HEAT STAGE 2 [_
(FURNACE LO)
HEAT/COOL STAGE 1
(COMPRESSOR)
C_
FAN 1_
24 VAC HOT 1_
DEHUMIDIFY [_
24 VAC COMM
__
24 VAC COMM [_
1 HUM
........
I
I_ HUM
HUMIDIFY
[_0__
_ ........
z_
HUMIDIFIER(24
VAC)
I_L---i
HUMIDIFY
'_
{
HUMIDIFIER
(24 VAC)
] _
i
N/A I_
N/A [_
Os%_OO
__-l_q -
........
_
OUTDOORsENSOR
_{
i
i
CONNECT,ON
Ll_q-
OUTDOOR
SENSOR
_,
CONNECT,ON
[_
See notes 2, 5, 7, 10, and 11
See notes
1, 2, 4, 6, 7, 9, 10,
11, and
15
A00275
A00277
Fig. 50 - Two-Stage
Furnace with Single-Speed
Air Conditioner
THERMIDISTAT
NOTE
HEAT
STAGE
COOL STAGE
1 _.
HEAT
1 IW_-.
STAGE
Heat Pump
TWO-STAGE
TWO-SPEED
FURNACE
AIR CONDITIONER
-I_
I_F.
TWO-STAGE
FURNACE
TWO-SPEED
HEAT
PUMP
---
HEAT
STAGE
3 _.
(FURNACE)
_
NOTE
12
HEAT/COOL
STAGE
2 _.
(COMPRESSOR
HI)
24 VAC HOT I_F.
24 VAC COMM
Fuel)
RVS COOLING
FAN I_F.
I_0_.
(Dual
THERMIDISTAT
-F_q
with Single-Speed
12
2 I_.
DEHUMIDIFY
Furnace
HEAT/COOL
STAGE
1 _.
(COMPRESSOR
LO)
NOTE
COOL STAGE
11
2 I_-.
Fig. 52 - Two-Stage
-I_F
-24 VAC
FAN
[_.
HOT
[_.
DEHUMIDIFY
24 VAC
[_
COMM
I_
FI HUM
[_ HUM
........
HUMIDIFY
I_MI
HUMIDIFIER
(24 VAC)
_.
____
HUMIDIFY[_
...............
_!_
HUMIDIFIER(24
VAC)
k _q!
--_i
N/A I_
N/A [_
OUTDOOR
SENSOR
Os_T_OO
__-r_h •
CONNECT,ON
Ll_h
i
CON.EOT,ON
L_
See notes 2, 5, 8, 10, 11, and 12
See notes1,
2, 3, 4, 6, & 9,10,12,13,
A00276
Fig. 51 - Two-Stage
Furnace
Air Conditioner
and15
A00278
with Two-Speed
Fig. 53 - Two-Stage
Furnace
Heat Pump
50
(Dual
with Two-Speed
Fuel)
DUAL FUEL
THERMOSTAT
RVS
TWO-STAGE
FURNACE
TWO-STAGE
THERMOSTAT
SINGLE-SPEED
HEAT PUMP
NOTE 11
COOLING
NOTE
[_-
11
HEAT STAGE
3
(FURNACE HI)
I qI qI qI qI q-
HEAT STAGE
2
(FURNACE LO)
HEAT/COOL
STAGE
1
(COMPRESSOR)
C_
E2_
FAN
24 VAC
24 VAC
HOT
TWO-STAGE
FURNACE
[_
TWO-SPEED
AIR CONDITIONER
-F q
-i q
NOTE 12
-F_
---
-I q
COMM
N/A
RVS SENSING
I
HUM
[_
I
°s_T#°°
__E?!_
OUTDOOR
SENSOR
CONNECT,ON
LE2_
See notes
HUM
_
See notes 2, 11, and 12
1, 2, 4, 1 t, 14, 15, and t 6
A00279
Fig. 54 - Dual Fuel Thermostat
with Two-Stage
Single-Speed
Heat
DUAL FUEL
THERMOSTAT
RVS
Furnace
A00281
and
Fig. 56 - Two-Stage
Pump
Thermostat
and Two-Speed
TWO-STAGE
FURNACE
TWO-SPEED
HEAT PUMP
SINGLE-STAGE
THERMOSTAT
with Two-Stage
Furnace
Air Conditioner
TWO-STAGE
FURNACE
TWO-SPEED
AIR CONDITIONER
COOLING
E2_
HEAT/COOL
STAGE
1
(COMPRESSOR
LO)
HEAT
STAGE
3
(FURNACE)
NOTE
12
HEAT/COOL
STAGE
2
(COMPRESSOR
HI)
[_
C_
E2_
[_
I
FAN
24 VAC
24 MAC
HOT
-I q
IW31
COMM
N/A
RVS SENSING
HUM
[_
I
OUTDOOR
SENSOR
HUM
_jZ_,
See note 2
CONNECT'ON
i_
See notes
I, 2, 3, 4, I2,
13, 14, 15, and
I7
A00280
Fig. 55 - Dual Fuel
Thermostat
Two-Speed
with Two-Stage
Furnace
A00262
and
Fig. 57 - Single-Stage
Heat Pump
Thermostat
and Two-Speed
51
with Two-Stage
Air Conditioner
Furnace
NOTES
1. Heat pump
MUST
2. Refer
to outdoor
3. Select
the "ZONE"
4. Outdoor
have a high pressure
equipment
Installation
position
Air Temperature
switch
Sensor
for dual fuel applications.
Instructions
on the two-speed
FOR FIG. 50-57:
for additional
heat pump
must be attached
should
be set in OFF
6. Dip switch
No. 1 on Thermidistat
should
be set in ON position
7. Dip switch No. 2 on Thermidistat
This is factory default.
should
be set in OFF
8. Dip switch
should
be set in ON position
Option
10. NO connection
No. 10 "Dual
should
Fuel Selection"
be made to the furnace
HUM
dip switch
12. Optional connection.
If wire is connected,
to control outdoor unit staging.
ACRDJ
must control
14. The RVS Sensing
its own high-stage
terminal
"L" should
heating
17. Dip switch
D on Dual
Fuel
Thermostat
D on Dual Fuel Thermostat
terminal
not be connected.
should
for two-speed
installations.
compressor
compressor
operation.
operation.
using a Thermidistat.
control
should
be set in ON position
on furnace
control
should
via furnace
control
algorithm.
This is internally
or "BALANCE
Fuel Thermostat.
be removed
option
for two-speed
compressor
Thermidistat/
default.
operation.
on the two-speed
for single-speed
to allow
to allow Thermidistat/Thermostat
This is factory
used to sense defrost
POINT"
position
be set in ON position
52
default.
ON in all dual fuel applications.
when
be set in OFF
This is factory
installations.
for single-speed
No. 1 on furnace
operation
should
for air conditioner
for heat pump
position
jumper
15. DO NOT SELECT the "FURNACE
INTERFACE"
This is controlled
internally by the Thermidistat/Dual
16. Dip switch
default.
position
must be turned
11. Optional
connection.
If wire is connected,
Thermostat
to control furnace staging.
13. Furnace
procedure.
in all dual fuel applications.
No. 1 on Thermidistat
9. Configuration
and setup
control.
5. Dip switch
No. 2 on Thermidistat
information
compressor
operation.
heat pump
operation.
control
This
board.
is factory
b.When
theRtoG-and
Y/Y2circuitisclosed
andthere
isademand
fordehumidification,
thefurnace
blower
motor
BLWM
willdroptheblower
speed
fromCOOL
toHIHEAT
foramaximum
of10minutes
before
reverting
backtoCOOL
speed.
If there
isstilla
demand
fordehumidification
after20minutes,
the
furnace
control
CPUwilldroptheblower
speed
back
toHIHEAT
speed.
Thisalternating
10-minute
cycle
willcontinue
aslongasthere
isacallforcooling.
c.When
the:'callforcooling"
issatisfied
andthere
isa
demand
fordehumidification,
thecooling
blower-off
delay
isdecreased
from90seconds
to5seconds.
CONTINUOUS
When
motor
BLOWER
on for the selected
blower-OFF
delay
period.
If the R-to
W/Wl-and-Y1
signals disappear, leaving the G signal, the blower
motor
BLWM will remain
on for the selected
blower-OFF
delay
at COOL
speed.
motor
delay
period
before
When
reverting
the thermostat
BLWM
will
switch
to continuous-blower
:'calls
for low-cooling",
to operate
at low-cool
(same
speed
:'calls for high-cooling",
at COOL speed. When
the R to G circuit
continue
function
is opened,
Continuous
Blower
Speed
Selection
NOTE:
motor
from
is operating.
The
furnace
if no
as
CPU
will
helps
failure.
The
energized,
blower
the furnace
motor
BLWM
control
shift
1. Remove
the
at low
cool
quick-
longer
disappear
motor
connect
for safety
reasons.
is energized.
This
in case of a component
will
not
operate
if
any
and not until all time delays
If TEST/TWIN
door switch.
on control
and
motor
rapidly
for 2-stage
previous
starts
LED
furnace
53
off.
is as follows:
on high-speed
is energized
component
code 4 times.
and continues
to
test sequence.
for 15 sec, then off.
d. Blower
motor
operates
on LO-HEAT
speed
for 10 sec.
e. Blower
motor
operates
on HI-HEAT
speed
for 10 sec.
f. Blower
motor
operates
on COOL
g. Inducer
motor
goes to low-speed
speed
for 10 sec.
for 10 sec, then stops.
5. Reconnect
R lead to furnace control, remove
blower door switch, and re-install blower door.
will remain
turns
are jumpered
and ignore
status
Step g of component
igniter
until
COM-24V
(5 mm)
(See Fig. 37.)
COM-24V terminals
will flash
test sequence
control.
2 sec, short (jumper)
the
to the TEST/TWIN
3/16-in.
from terminals.
than 2 sec, LED
c. Hot surface
as LO
door.
R lead from furnace
terminal
jumper
run until
to or turn on the
BLWM
access
thermostat
b. Inducer
input
signal disappears,
the furnace
control
begins
a
inducer post-purge
period and the blower remains running
HEAT speed. If the R-to-W/Wl-and-Yl-and-G
signals
at the same time, the blower
all
and
Self-Test:
a. LED will display
HEAT), and begin a low-heat
cycle. The blower motor BLWM
will remain on until the end of the prepurge period, then shut off
for 24 seconds then come back on at LO HEAT speed. When the
W/W1
normal
at LO
allows
the gas valve
blower
feature
at control
close blower
Remove
the R to
circuits
are
speed
when
problem
test
4. For approximately
terminal
on control
the furnace
control
to avoid long blower
(same
a system
blower
3. Manually
Component
speed
test
except
SHOCK HAZARD
2. Disconnect
connections)
CPU will switch
component
time;
Blower access panel door switch opens 115-v power to control
board. No component operation can occur. Caution must be
taken when manually closing this switch for service purposes.
- To
test request.
When
or
G
the
Failure to follow this warning could result in electrical shock,
personal injury, or death.
will
PUMP
defrost
cycles.
W/Wl-and-Yl-and-G
W/WI-and-Y/Y2
disappear,
leaving
are not energized
is present
ELECTRICAL
HEAT
off times
during
demand
W/Wl-and-Y1
or R to
the furnace
will remain on for the selected
then
switch
to
continuous-
control
component
Component
NOTE:
pump,
sequence
R-to
signals
is energized
diagnose
signal
selection can be changed as many times as desired and is stored
in the memory
to be automatically
used following
a power
interruption.
When
installed
with
a heat
automatically
changes the timing
disappears,
90
to
at the thermostat
will shift the continuous-blower
speed from HI
HEAT
to COOL.
Repeating
the procedure
will
shift
the
continuous-blower
speed from COOL to LO HEAT speed. The
for thermostat
signal
the
HUM
terminal
feature
To Begin
continuousblower speed from the factory setting of LO HEAT to
HI HEAT speed. Momentarily
turning off the FAN switch again
(See Fig. 50 C-F
motor
disappear
at the same time, the blower
remain
on for the selected
blower-OFF
furnace
terminal
thermostat
other
Thermostat
control
input
to run for a short
The EAC-1
select
different
continuous-blower
speeds
from
the room
thermostat,
momentarily
turn off the FAN switch or push-button
on the room thermostat
for 1 - 3 seconds after the blower motor
BLWM
The blower
the end of the prepurge
period,
then come back on at HI HEAT
are completed.
BLWM
5 seconds,
operation.
cycle.
furnace
BLWM
SELF-TEST
The
components
the blower motor
the thermostat
is
the blower
operating
for an additional
requires blower motor BLWM
the W/W1
COMPONENT
motor
speed
satisfied,
the blower motor BLWM will operate an additional
seconds
on
COOL
speed
before
reverting
back
continuous-blower
speed.
When
a high-heat
signal, the blower motor BLWM
blowerOFF
delay
period
blower speed.
motor
LO HEAT). When the thermostat
is satisfied,
the blower
BLWM will operate an additional
90 seconds on low-cool
before reverting
back to continuous-blower
speed.
When the thermostat
BLWM will operate
When
humidifier
the blower
and begin
delay
period.
If
R-to-W/Wl-and-Yl-and-Y/Y2
speed.
speed
speed,
Y/Y2-and-G
signals
motor
BLWM will
BLWM will stop during igniter
(7 seconds),
and blower-ON
In high-heat,
the furnace control CPU will hold the blower
BLWM at HI HEAT speed during the selected blower-OFF
speed.
R-to-W/Wl-andor R-to-W/W1-
control
begins
a normal
inducer
post-purge
period
and the
blower
switches
to COOL speed after a 3 second delay. If the
R-to-W/Wl-and-Y/Y2-and-G
or R-to
W/Wl-and-Yl-and-
set to LO HEAT, HI HEAT, or COOL speed). Factory default is
LO HEAT speed. Terminal
EAC-1 is energized
as long as the
blower motor BLWM is energized.
to heat
delay
to continuous-blower
R-to
W/WI-and-Y/Y2,
R-to W/Wl-and-Yl-and-Y/Y2,
BLWM will remain
on until
then shut off for 24 seconds
the R to G circuit is closed by the thermostat,
the blower
BLWM will operate on continuous-blower
speed (can be
delay (66 seconds),
allowing the furnace heat exchangers
up more quickly, then restarts at the end of the blower-ON
period at LO HEAT or HI HEAT speed respectively.
then switch
and-Yl-andY/Y2-and-G
circuits
are energized
the
control CPU will switch to or turn on the blower motor
MODE
During a call for heat, the blower
warm-up
(17 seconds),
ignition
period
When
the
Y/Y2-and-G,
tape
from
6.Operate
furnace
perinstruction
onouter
door.
7.Verifyfurnace
shutdownbylowering
thermostat
setting
below
roomtemperature.
8.Verifythatfurnace
restarts
by raising
thermostat
setting
above
roomtemperature.
OPERATE
operating
instructions
label
attached
d. Jumper
control
temperature
above room
altitudes
input
rate
up to 2000
In the U.S.A.,
1.3-in.
rating
plate
is for
installations
pressure
at
obtain
ft. (610 M).
the input
M) must be reduced
sea level.
ratings
for altitudes
by 2 percent
for each
above
2000
manifold
Furnace
input
pressure
to obtain
rate must be within
Pressure
For Correct
average
UNIT
Failure
furnace
Orifice
of input
Size
And
Manifold
gas specific
(at installed
gravity
from local gas
altitudes
altitudes
(in) to increase
NOT
set
wc or more
than
is outside
pressure
low-heat
connections
on
input rate.
manifold
1.7-in.
pressure
wc for natural
this range,
change
main
less
than
gas. If manifold
burner
orifices
to
to
life.
HAZARD
follow
this
size.
aligned
orifice
of 2001
of 2001
to 4500
to 3000
ft. (610
ft (610
Never
caution
redrill
may
e. Find closest natural
on Table 15.
gas heat value
f. Move
setup
completing
g. Jumper
result
in
reduced
switch
to 1372
A burr-free
for proper
flame
gravity
NOTE:
3.2-in.
pressure
obtain
operation.
DO
NOT
is outside
connections
furnace
high-heat
manifold
pressure
wc for natural
this range,
change
in this range.
i. When
correct
input
on
in
rate
rate.
than 3.8-in.
pressure
locked
screw (3/32 hex Allen
(out) to decrease input
(in) to increase
set
after
adjustment.
R and W1 and W2 thermostat
wc or more
and squarely
characteristics.
SW-1 to OFF position
low-heat
h. Turn high-heat
adjusting
wrench) counterclockwise
f. Follow heat value and specific gravity lines to point of
intersection
to find orifice size and manifold
pressure
for proper
or it is suspected
to have
a numbered
drill bit of
control. (See Fig. 37.) This keeps
high-heat
operation.
to 914 M) in
and specific
an orifice.
hole is essential
or clockwise
settings
to ON
in this range.
DAMAGE
correct
20,000/13,000
(High/Low)
Btuh per burner.
d. Find installation
altitude in Table 15.
For Canada
DO
NOTE:
If orifice hole appears damaged
been redrilled,
check orifice hole with
altitude)
supplier.
M), use U.S.A.
Table 15.
center
in low-heat
DO NOT bottom out gas valve regulator adjusting screw. This
can result in unregulated
manifold
pressure
and result in
excess overfire and heat exchanger failures.
on furnace
c. Verify furnace model and size. Table 15 can only be
used for model 58MTB furnaces with heating inputs of
NOTE:
locked
Input.
a. Obtain average gas heat value
from local gas supplier.
b. Obtain
furnace
fl (610
input rate.
- 2 percent
rating plate adjusted for altitude.
1. Determine
Natural
Gas
SW-1 on control
1000 ft. (305 M) above
In Canada, the input ratings must be derated by 5 percent for
altitudes of 2001 fi to 4500 fl (610 to 1372 M)above sea level.
Adjust
switch
R and W/WI thermostat
to start furnace.
clock-wise
NOTE:
on
with
e. Turn low-heat
adjusting screw (3/32 hex Allen wrench)
counterclockwise
(out) to decrease input rate or
Step 5 - Adjustments
SET GAS INPUT RATE
gas
be measured
(See Fig. 58.)
setup
position.
This keeps
operation.
RESTART
With furnace operating,
set thermostat
below room
and observe
that furnace
goes off. Set thermostat
temperature
and observe that furnace restarts.
Furnace
regulators.
c. Move
on
always
b. Remove regulator seal caps that conceal adjustment
screws for low-and high-heat
gas valve pressure
FURNACE
Follow
procedures
to furnace.
FURNACE
NOTE:
Manifold
pressure
MUST
burner enclosure front REMOVED.
is obtained,
main
less
than
gas. If manifold
burner
replace
orifices
caps that
conceal gas valve regulator adjustment
screws. Main
burner flame should be clear blue, almost transparent.
EXAMPLE:
(0 - 2000 ft (0-610 M) altitude using Table 15)
(See Fig. 59.)
Heating value = 1050 Btu/cu fi
j. Remove
jumper
R-to-W1
and W2.
Specific gravity = 0.62
Therefore: Orifice No. 45
Manifold pressure 3.6-in. wc for high heat
1.5-in. wc for low heat
UNIT
DO
NOT
out-of-round
misdirection
g. Check and verify burner orifice size in furnace.
NEVER ASSUME
ORIFICE SIZE; ALWAYS CHECK
AND VERIFY.
Manifold
a. Remove
burner
Pressure
To Obtain
enclosure
HAZARD
Failure to follow this caution may result in component
damage
due to flame impingement
of burners and heat exchangers.
* Furnace is shipped with No. 45 orifices.
In this example all main burner orifices are the correct size
and do not need to be changed to obtain the proper input rate.
2. Adjust
DAMAGE
Input Rate.
front.
54
redrill
orifices.
Improper
holes, etc.) can cause excessive
of burner flames. (See Fig. 60.)
drilling
(burrs,
burner noise and
to
Table
15
-
Model
58MTB
Orifice
Size and High/Low-Heat
for Use with 060 Through
(Tabulated
Derated
Data Based
2 Percent
on 20,000/13,000
for Each 1000
t_
"o
t_
o
t_
0 to
2000
(0 to
61O)
0%
derate
AVG GAS
HEAT VALUE
(BTU/CU FT)
0.58
U,S,
t_
o
"o
<.
Altitudes
2001
to 3000
(610 to
914)
or
Canada
Altitudes
2001 to
4500
(610 to
1371)
5%
derate
_>,
•
,_.
::5
3001 to
4000
(914 to
1219)
7%
derate
Inputs
Sea Level)*
GRAVITY OF NATURAL GAS
0.62
0.64
Orifice
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
Orifice
no.
850
43
3.7/1.5
43
3.8/1.6
42
3.2/1.4
875
43
3.5/1.5
43
3.6/1.5
43
3.7/1.6
900
44
3.7/1.6
43
3.4/1.4
43
925
44
3.5/1.5
44
3.7/1.6
950
44
3.4/1.4
44
975
44
3.2/1.3
1000
45
1025
0.66
Manifold
Pressure
Orifice
no.
Manifold
Pressure
42
3.3/1.4
42
3.4/1.4
43
3.8/12.6
42
3.2/1.4
3.5/1.5
43
3.6/1.5
43
3.7/1.6
44
3.8/1.6
43
3.4/1.4
43
3.5/1.5
3.5/1.5
44
3.6/1.5
44
3.7/1.6
44
3.8/1.6
44
3.3/1.4
44
3.4/1.4
44
3.5/1.5
44
3.6/1.5
3.7/1.6
45
3.8/1.6
44
3.2/1.4
44
3.4/1.4
44
3.5/1.5
45
3.5/1.5
45
3.6/1.5
45
3.7/1.6
44
3.2/1.3
44
3.3/1.4
1050
45
3.3/1.4
45
3.4/1.5
45
3.6/1.5
45
3.7/1.6
45
3.8/1.6
1075
45
3.2/1.3
45
3.3/1.4
45
3.4/1.4
45
3.5/1.5
45
3.6/1.5
1100
47
3.6/1.5
47
3.7/1.6
45
3.2/1.4
45
3.4/1.4
45
3.5/1.5
AVG GAS
HEAT VALUE
(BTU/CU FT)
0.58
GRAVITY OF NATURAL GAS
0.60
0.62
0.64
0.66
Orifice
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
775
43
3.8/1.6
42
3.2/1.4
42
3.3/1.4
42
3.4/1.4
42
3.5/1.5
800
43
3.5/1.5
43
3.7/1.5
43
3.8/1.6
42
3.2/1.4
42
3.3/1.4
825
44
3.8/1.6
43
3.4/1.5
43
3.6/1.5
43
3.7/1.5
43
3.8/1.6
850
44
3.6/1.5
44
3.7/1.6
44
3.8/1.6
43
3.5/1.5
43
3.6/1.5
875
44
3.4/1.4
44
3.5/1.5
44
3.6/1.5
44
3.7/1.6
43
3.4/1.4
900
44
3.2/1.4
44
3.3/1.4
44
3.4/1.4
44
3.5/1.5
44
3.6/1.5
925
45
3.7/1.5
45
3.8/1.6
44
3.2/1.4
44
3.3/1.4
44
3.4/1.5
950
45
3.5/1.5
45
3.6/1.5
45
3.7/1.6
45
3.8/1.6
44
3.3/1.4
975
45
3.3/1.4
45
3.4/1.4
45
3.5/1.5
45
3.6/1.5
45
3.8/1.6
1000
47
3.7/1.6
45
3.2/1.4
45
3.4/1.4
45
3.5/1.5
45
3.6/1.5
1025
47
3.6/1.5
47
3.7/1.6
45
3.2/1.3
45
3.3/1.4
45
3.4/1.4
SPECIFIC
ALTITUDE
RANGE
FT (a)
for Correct
Btuh per Burner,
0.60
SPECIFIC
ALTITUDE
RANGE
FT (a)
Pressures
Only
ft (305 M)Above
SPECIFIC
ALTITUDE
RANGE
FT (a)
Manifold
120 Size Furnaces
AVG GAS
HEAT VALUE
(BTU/CU FT)
0.58
Orifice
no.
Manifold
Pressure
GRAVITY OF NATURAL GAS
0.60
0.62
0.64
0.66
Orifice
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
750
43
3.7/1.6
43
3.8/1.6
42
3.3/1.4
42
3.4/1.4
42
3.5/1.5
775
43
3.5/1.5
43
3.6/1.5
43
3.7/1.6
43
3.8/1.6
42
3.2/1.4
800
44
3.7/1.6
43
3.4/1.4
43
3.5/1.5
43
3.6/1.5
43
3.7/1.6
825
44
3.5/1.5
44
3.6/1.5
44
3.8/1.6
43
3.4/1.4
43
3.5/1.5
850
44
3.3/1.4
44
3.4/1.4
44
3.5/1.5
44
3.7/1.5
44
3.8/1.6
875
45
3.8/1.6
44
3.2/1.4
44
3.3/1.4
44
3.5/1.5
44
3.6/1.5
900
45
3.6/1.5
45
3.7/1.6
45
3.8/1.6
44
3.3/1.4
44
3.4/1.4
925
45
3.4/1.4
45
3.5/1.5
45
3.6/1.5
45
3.7/1.6
44
3.2/1.3
950
45
3.2/1.4
45
3.3/1.4
45
3.4/1.5
45
3.5/1.5
45
3.7/1.5
975
47
3.6/1.5
45
3.2/1.3
45
3.3/1.4
45
3.4/1.4
45
3.5/1.5
1000
47
3.5/1.5
47
3.6/1.5
45
3.7/1.6
45
3.2/1.4
45
3.3/1.4
Orifice numbers shown in shading are factory installed.
NOTE: Percents of derate are based on midpoints of U=S=altitude ranges.
55
Table
15 - Model
58MTB
Orifice
Size and High/Low-Heat
for Use With 060 Through
(Tabulated
Derated
ALTITUDE
RANGE
FT (a)
AVG GAS
HEAT
VALUE
(BTU/CU FT)
725
>,
4
_,,
"_
4001
to
5000
(1219
75O
775
8OO
to
825
85O
1524)
9%
derate
875
9OO
925
95O
ALTITUDE
RANGE
FT (a)
AVG GAS
HEAT
VALUE
(BTU/CU FT)
>,
"_
0
_J
:5
•
_.
_.
6001
to
7000
(1829
Manifold
Pressure
Orifice
no.
Manifold
Pressure
43
44
3.7/1.5
3.4/1.4
43
43
3.8/1.6
3.5/1.5
42
43
3.2/1.4
3.7/1.5
42
43
3.3/1.4
3.8/1.6
42
42
3.4/1.4
3.2/1.4
44
44
3.7/1.6
3.51.5
44
44
3.8/1.6
3.6/1.5
43
44
3.4/1.4
3.7/1.6
43
44
3.5/1.5
3.8/1.6
43
43
3.7/1.5
3.4/1.4
44
3.2/1.4
44
3.4/1.4
44
3.5/1.5
44
3.6/1.5
44
3.7/1.6
45
45
3.5/1.5
3.3/1.4
45
45
3.8/1.6
3.6/1.5
44
45
3.3/1.4
3.7/1.6
44
44
3.4/1.4
3.2/1.3
44
44
3.5/1.5
3.3/1.4
45
47
3.3/1.4
3.7/1.6
45
45
3.4/1.4
3.2/1.4
45
45
3.5/1.5
3.3/1.4
45
45
3.6/1.5
3.4/1.5
45
45
3.8/1.6
3.6/1.5
47
3.5/1.5
47
3.6/1.5
45
3.2/1.3
45
SPECIFIC GRAVITY OF NATURAL GAS
3.3/1.4
45
3.4/1.4
0.58
0.60
45
45
3.4/1.4
3.2/1.4
47
3.6/1.5
47
48
3.4/1.4
3.7/1.6
1000
48
48
3.5/1.5
3.3/1.4
AVG GAS
HEAT
VALUE
(BTU/CU FT)
Orifice
no.
Manifold
Pressure
Orifice
65O
42
3.2/1.3
675
43
44
3.6/1.5
3.8/1.6
44
44
3.6/1.5
3.3/1.4
45
45
3.8/1.6
3.5/1.5
85O
45
47
3.3/1.4
3.7/1.6
875
47
3.5/1.5
2134)
13%
derate
8OO
825
0.66
Orifice
no.
3.2/1.3
3.6/1.5
to
0.64
Manifold
Pressure
44
45
75O
775
0.62
Orifice
no.
3.6/1.5
3.4/1.4
7OO
725
Sea Level)*
Manifold
Pressure
44
44
9OO
925
Btuh per Burner;
Orifice
no.
43
875
(Continued)
Manifold
Pressure
3.6/1.5
3.4/1.4
825
85O
Inputs
Orifice
no.
43
43
95O
975
ALTITUDE
RANGE
FT (a)
0.60
Orifice
775
8OO
on 20,000/13,000
for Correct
Only
SPECIFIC GRAVITY OF NATURAL GAS
0.58
Manifold
Pressure
725
75O
Pressures
for Each 1000 ft (305 M) Above
Orifice
no.
7OO
5001
to
6000
(1524
to
1829)
11%
derate
Data Based
2 Percent
Manifold
120 Size Furnaces
no.
43
44
44
44
45
45
45
47
47
48
48
0.64
0.66
Manifold
Pressure
Orifice
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
Or_ce
no.
Manifold
Pressure
3.7/1.6
3.5/1.5
42
43
3.2/1.3
3.6/1.5
42
43
3.3/1.4
42
3.4/1.4
3.7/1.6
3.8/1.6
3.7/1.6
3.5/1.5
43
44
3.4/1.4
3.6/1.5
43
44
3.5/1.5
43
43
3.4/1.4
3.3/1.5
3.7/1.6
44
44
3.4/1.4
3.2/1.4
44
44
3.5/1.5
43
44
3.4/1.4
3.5/1.5
3.3/1.4
45
45
3.6/1.5
3.4/1.5
45
45
3.8/1.6
44
44
3.6/1.5
45
3.7/1.5
3.7/1.6
45
3.3/1.4
45
3.4/1.4
3.5/1.5
3.5/1.5
3.8/1.6
47
47
3.7/1.5
3.5/1.5
45
47
3.2/1.3
45
45
3.7/1.6
3.4/1.4
47
47
3.7/1.6
48
3.8/1.6
Manifold
Pressure
3.7/1.6
3.3/1.4
3.6/1.5
3.6/1.5
48
3.8/1.6
47
3.5/1.5
48
3.6/1.5
48
SPECIFIC GRAVITY OF NATURAL GAS
48
0.58
0.62
0.60
0.62
0.64
3.6/1.5
3.6/1.5
3.2/1.4
3.3/1.4
3.5/1.5
0.66
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
Orifice
no.
Manifold
Pressure
42
3.3/1.4
42
3.4/1.4
42
3.5/1.5
Or_ce
no.
42
43
3.7/1.6
3.4/1.5
43
43
3.8/1.6
3.6/1.5
42
43
3.2/1.4
42
3.3/1.4
3.7/1.6
3.8/1.6
3.7/1.6
3.4/1.5
44
44
3.8/1.6
3.6/1.5
43
44
3.4/1.4
43
43
3.8/1.6
3.2/1.4
3.7/1.5
44
45
3.3/1.4
3.8/1.6
44
44
3.4/1.5
44
44
3.3/1.4
45
45
3.6/1.5
3.4/1.4
45
45
3.7/1.6
45
3.4/1.5
3.2/1.4
44
45
3.5/1.5
45
3.6/1.5
47
3.6/1.5
45
3.2/1.3
45
3.3/1.4
45
3.4/1.4
43
44
44
44
45
45
Orifice numbers shown in shading are factory installed.
NOTE: Percents of derate are based on midpoints of U.S. altitude ranges.
56
3.7/1.6
3.2/1.4
3.6/1.6
3.5/1.5
3.5/1.5
3.8/1.6
Table
15 - Model
58MTB
Orifice
Size and High/Low-Heat
for Use With 060 Through
(Tabulated
Derated
ALTITUDE
RANGE
FT (a)
7001
to
8000
(2134
2438)to
15%
derate
:5
ALTITUDE
RANGE
FT (a)
AVG GAS
HEAT
VALUE
(BTU/CUFT)
ALTITUDE
RANGE
FT (a)
_>,
•
<.
cn
:5
9001
to
10000
(2743
to
3048)
19%
derate
on 20,000/13,000
for Correct
Inputs
(Continued)
Only
Btuh per Burner;
for Each 1000 ft (305 M) Above
Sea Level)*
SPECIFIC GRAVITY OF NATURAL GAS
0.58
Orifice
Manifold
no.
Pressure
0.60
Orifice
Manifold
no.
Pressure
Orifice
no.
0.62
Manifold
Pressure
Orifice
no.
0.64
Manifold
Pressure
Orifice
no.
0.66
Manifold
Pressure
43
3.8/1.6
42
3.3/1.4
42
3.4/1.4
42
3.5/1.5
42
3.6/1.5
65O
43
44
3.5/1.5
3.8/1.6
43
43
3.7/1.6
3.4/1.4
43
43
3.8/1.6
3.5/1.5
42
43
3.2/1.4
3.6/1.5
42
43
3.3/1.4
3.7/1.6
44
44
3.5/1.5
3.3/1.4
44
44
3.6/1.5
3.4/1.4
44
44
3.8/1.6
3.5/1.5
43
44
3.4/1.4
3.6/1.5
43
44
3.5/1.5
3.7/1.6
45
45
3.7/1.6
3.5/1.5
45
45
3.8/1.6
3.6/1.5
44
45
3.3/1.4
3.7/1.6
44
45
3.4/1.4
3.8/1.6
44
44
3.5/1.5
3.3/1.4
825
45
47
3.3/1.4
3.6/1.5
45
45
3.4/1.4
3.2/1.3
45
45
3.5/1.5
3.3/1.4
45
45
3.6/1.5
3.4/1.4
45
45
3.7/1.6
3.5/1.5
85O
47
3.4/1.4
47
3.5/1.5
47
3.7/1.5
45
SPECIFIC GRAVITYOF NATURALGAS
3.2/1.3
45
3.3/1.4
AVG GAS
HEAT
VALUE
(BTU/CUFT)
Orifice
no.
675
7OO
725
75O
775
8OO
0.58
Manifold
Pressure
Orifice
no.
0.60
Manifold
Pressure
Orifice
no.
0.62
Manifold
Pressure
Orifice
no.
0.64
Manifold
Pressure
Orifice
no.
0.66
Manifold
Pressure
43
43
3.8/1.6
3.5/1.5
42
43
3.3/1.4
3.6/1.5
42
43
3.4/1.4
3.8/1.6
42
42
3.5/1.5
3.2/1.4
42
42
3.6/1.5
3.3/1.4
44
3.7/1.6
43
3.4/1.4
43
3.5/1.5
43
3.6/1.5
43
3.7/1.6
44
44
3.5/1.5
3.2/1.4
44
44
3.6/1.5
3.3/1.4
44
44
3.7/1.6
3.4/1.5
44
44
3.8/1.6
3.6/1.5
43
44
3.4/1.5
3.7/1.6
45
45
3.6/1.5
3.4/1.4
45
45
3.8/1.6
3.5/1.5
44
45
3.2/1.4
3.6/1.5
44
45
3.3/1.4
3.8/1.6
44
44
3.4/1.4
3.2/1.4
8OO
45
47
3.2/1.3
3.6/1.5
45
47
45
45
3.6/1.5
3.4/1.4
AVG GAS
HEAT
VALUE
(BTU/CUFT)
Orifice
no.
625
:5
Pressures
625
6OO
Altitudes
8001
to 9000
(2438 to
2743)
17%
derate
Data Based
2 Percent
Manifold
120 Size Furnaces
65O
675
7OO
725
75O
775
575
6OO
0.58
Manifold
Pressure
3.3/1.4
45
3.4/1.4
45
3.5/1.5
3.7/1.6
45
3.2/1.3
45
3.3/1.4
SPECIFIC GRAVITYOF NATURALGAS
0.60
0.62
0.64
Orifice
Manifold
Orifice
Manifold
Orifice
Manifold
no.
Pressure
no.
Pressure
no.
Pressure
Orifice
no.
0.66
Manifold
Pressure
43
3.8/1.6
42
3.2/1.4
42
3.3/1.4
42
3.3/1.5
42
3.6/1.5
43
44
3.5/1.5
3.7/1.6
43
44
3.6/1.5
3.8/1.6
43
43
3.7/1.6
3.5/1.5
42
43
3.2/1.3
3.6/1.5
42
43
3.3/1.4
3.7/1.6
44
3.4/1.4
44
3.5/1.5
44
3.7/1.5
44
3.8/1.6
43
3.4/1.4
44
45
3.8/1.6
3.6/1.5
44
45
3.3/1.4
3.7/1.6
44
45
3.4/1.4
3.8/1.6
44
44
3.5/1.5
3.3/1.4
44
44
3.6/1.5
3.4/1.4
75O
45
47
3.3/1.4
3.7/1.6
45
45
3.4/1.5
3.2/1.4
45
45
3.6/1.5
3.3/1.4
45
45
3.7/1.6
3.4/1.5
45
45
3.8/1.6
3.5/1.5
775
47
3.5/1.5
47
3.6/1.5
47
3.7/1.6
45
3.2/1.4
45
3.3/1.4
625
65O
675
7OO
725
*Orifice numbers shown in shading are factory installed.
NOTE: Percents of derate are based on midpoints of U.S. altitude ranges.
57
)FF
SWITCH
LOW-FIRE
ADJUSTMENT
ALLEN SCREW
(UNDER CAP)
NOTE:
Be sure
pipes, and burner
input by clocking
At
and vent
checking
gas meter.
a. Calculate
UNITED
HIGH-FIRE
ADJUSTMENT
ALLEN SCREW
(UNDER CAP)
" INLET
PRESSURE
all pressure
tubing, combustion-air
enclosure
front are in place when
high-altitude
STATES
altitudes
approved
above
adjustment
2000
for 2 percent
sea level.
See
multiplier
factor.
ft,
this
derate
Example
(if required).
furnace
for each
and
has
1000
Table
16
been
ft above
for
derate
EXAMPLE:
100,000
Btuh input furnace
Furnace Input Rate
at Sea Level
X
installed
Derate
Multiplier
at 4300 ft.
=
Furnace Input Rate
at Installation
Factor
100,000
X
Altitude
0.91
=
91,000
CANADA
At
installation
altitudes
from
2001
to
4500 ft,
this
furnace must be derated 5 percent by an authorized
Gas
Conversion
Station
or Dealer.
To determine
correct
input
MANIFOLD
PRESSURE
TAP
A97358
Fig. 58 - Redundant
BURNER
Automatic
rate for altitude,
see example
above
and use 0.95
as derate multiplier
factor.
b. Reinstall burner box cover.
Gas
Control
NOTE:
Clocking
gas input rate MUST
with the burner box cover INSTALLED.
Valve
FLAME "-_
f_,"
V
BURNER
correct
be performed
c. Check
proper
that gas valve adjustment
input to be clocked.
caps are in place
d. Obtain
yearly
for local gas supply.
NOTE:
:;i:"7
always
Be sure
for your
adjustment
heat value average
heating
value
altitude.
of gas used
Consult
of gas heating
local
for
for calculations
gas utility
for
is
altitude
value.
e. Check and verify orifice size in furnace. NEVER
ASSUME
THE ORIFICE SIZE. ALWAYS CHECK
AND
VERIFY.
f. Turn off all other gas appliances
J
h. Jumper
run for 3 minutes
in low-heat
j. Measure time (in sec) for gas meter
revolution.
Note reading.
A89020
k. Refer
Flame
to Table
1. Multiply
In. Move
This keeps
R-to-W/W1.
i. Let furnace
MAN IFOLD J
Fig. 59 - Burner
and pilots.
g. Move setup switch SW-1 to ON position.
furnace locked in low-heat operation.
1
17 for cubic ft of gas per hr.
gas rate cu ft/hr by heating
setup
operation.
to complete
switch
value (Btu/cu
SW-1 to OFF position
ft).
and jumper
R and W1 and W2 thermostat
connections.
This keeps
furnace locked in high-heat operation.
Repeat items 'i'
through
'1' for high-heat
operation.
Example:
(0 - 2000 ft altitude)
Furnace input from rating plate is 100,000
Btu heating input = Btu/cu ft X cu ft/hr
Btuh.
Heating value of gas = 975 Btu/cu ft
Time for 1 revolution
of 2-cu ft dial -- 70 sec
_I
_
Gas rate = 103 cu ft/hr (from Table 17)
Btu heating input = 103 X 975 = 100,425 Btuh. In this
example,
the orifice size and manifold pressure adjustment
ORIFICE
BURNER
is within
NOTE:
within
A93059
Fig. 60 - Burner
Orifice
---2percent
Measured
---2 percent
installed
at sea
installed
at higher
of the furnace
input rate.
gas inputs (high-heat
and low-heat)
must be
of that stated on furnace
rating plate when
level
or
derated
per
that
stated
above
when
altitudes.
n. Remove jumper across R, W/W1, and W2 thermostat
connections
to terminate
call for heat.
3. Verify Natural Gas Input Rate By Clocking Gas Meter.
58
SET TEMPERATURE
Table 16- Altitude Derate Multiplier for USA.
ALTITUDE
FT (i)
0-2000
(0-610)
2001-3000
(610-914)
3001-4000
(914-1219)
4001-5000
(1219-1524)
5001-6000
1524-1829)
6001-7000
(1829-2134)
7001-8000
(2134-2438)
8001-9000
(2438-2743)
PERCENT OF
DERATE
9001-10,000
(2743-3048)
DERATE MULTIPLIER
FACTOR*
0
1.00
4-8
0.95
8-8
0.93
8-10
0.91
Temperature
rating plate.
10-12
0.89
range or slightly
12-14
0.87
14-16
0.85
16-18
0.83
temperature
temperature
18-20
0.81
low gas heat.
UNIT
factors are based on midpoint
Table
SECONDS
FOR 1
REVOLUTION
17 - Gas Rate
SIZE OF TEST
DIAL
1
Cu Ft
2
Cu Ft
5
Cu Ft
10
360
720
1800
11
327
555
1536
12
300
600
13
277
14
15
rise must be within limits specified on furnace
Recommended
operation
is at midpoint
of rise
above.
2
Cu Ft
5
Cu Ft
50
72
144
360
51
71
141
355
1500
52
69
138
346
555
1385
53
68
136
340
257
514
1286
54
67
133
333
240
480
1200
55
65
131
327
16
225
450
1125
56
64
129
321
17
212
424
1059
57
63
126
316
operate
within
on the furnace
as follows:
must
rating
200
400
1000
58
62
124
310
19
189
379
947
59
61
122
305
20
180
360
900
60
60
120
300
21
171
343
857
62
58
116
290
22
164
327
818
64
56
112
281
23
157
313
783
66
54
109
273
24
150
300
750
68
53
106
265
25
144
286
720
70
51
103
257
26
138
277
692
72
50
100
250
27
133
267
667
74
48
97
243
28
129
257
643
76
47
95
237
29
124
248
621
78
46
92
231
30
120
240
600
80
45
90
225
31
116
232
581
82
44
88
220
32
113
225
563
84
43
86
214
33
109
218
545
86
42
84
209
34
106
212
529
88
41
82
205
35
103
206
514
90
40
80
200
36
100
200
500
92
39
78
196
37
97
195
486
94
38
76
192
38
95
189
474
96
38
75
188
39
92
185
462
98
37
74
184
40
90
180
450
100
36
72
180
41
88
176
439
102
35
71
178
42
88
172
429
104
35
69
173
43
84
167
419
106
34
68
170
44
82
164
409
108
33
67
167
45
80
160
400
110
33
65
164
46
78
157
391
112
32
64
161
47
76
153
383
116
31
62
155
48
75
150
375
120
30
80
150
49
73
147
367
124
29
58
145
temperature
plate.
rise
ranges
Determine
the
air
not "see" heat exchangers
so that radiant heat does not
affect thermometer
readings.
This is particularly
important
b. When
with straight
thermometer
return-air
determine
If the temperature
run ducts.
readings
temperature
temperature
rise is outside
a. Gas input for low-and
b. Derate
18
the
a. Place duct thermometers
in return and supply ducts as
close to furnace as possible. Be sure thermometers
do
SIZE OF TEST
DIAL
1
Cu Ft
Jumper R to W/W1 and W2 to check
rise.
To
check
low-gas-heat
jumper
to
W2.
Determine
air
rise for both high and low gas heat. Do not exceed
rise ranges specified
on unit rating plate for high and
furnace
specified
temperature
(CU FT/HR)
REVOLUTION
HAZARD
Place SW-1 in ON position.
high-gas-heat
temperature
temperature
rise,
remove
altitude for altitude range.
SECONDS
FOR 1
DAMAGE
Failure to follow this caution may result in overheating
the
heat exchangers
or condensing
flue gases in heat exchanger
areas not designed for condensate.
This
* Derate multiplier
RISE
for altitude
stabilize,
subtract
from supply-air
rise.
this range,
temperature
check
to
the following:
high gas heat operation.
if applicable.
c. Return and supply ducts for excessive
restrictions
causing static pressures greater than 0.50-in. wc.
d. Adjust temperature
rise by adjusting blower
Increase blower speed to reduce temperature
Decrease
ELECTRICAL
blower
speed
to increase
speed.
rise.
temperature
rise.
SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Disconnect 115-v electrical power before changing speed tap.
For high-heat,
the
HEAT on control:
a. Med-high
following
connections
can
be
at HI
(Yellow)
b. Med (Orange)
- Available only on 5-speed
Factory setting for these motors.
c. Med-Low(Blue)
- Do NOT
on 80K & 120K Btuh
for 4-speed motors.
59
made
input
motors.
use for HI GAS-HEAT
models.
Factory
setting
Step 6 - Check
UNITDAMAGE
This section
covers
before the installation
HAZARD
connect
2. Do NOT
Low
connect
"HI-HEAT"
model sizes.
on
Speed (Red)
Medium
80,000
Btuh
1. Check
wire to "HI HEAT".
Low
Speed
and
(Blue)
120,000
wire
Btuh
Primary
Limit
input
SPEED
White
Common
High
Cool
Med - High
SPARE
Orangef
Med
High-Gas
Blue
Med- Low
Spare/High-Gas
Red
Low*
Low-Gas
of checking
to permit
to check
this limit control
is to
Heat
THERMOSTAT SUBBASE
TERMINALS WITH
THERMOSTAT REMOVED
Heat
Heat
HOOK-AROUND
VO LT/AM M ETER
speed
For low-heat,
the following
HEAT on control:
a. Med (Orange)
b. Med-Low
normal air circulation.
By
limit control,
it can be
established
that limit is functioning
properly and operates
if there is a restricted return-air
supply or motor failure. If
limit control does not function during this test, cause must
be determined
and corrected.
1-Available on 5-speed blowers only
connections
- Available
can
be
made
only on 5-speed
at LO-
motors
(Blue)
c. Low (RED)
blower
blower
procedure
Control
method
should be unblocked
using this method
COM
Black
remove
in the Start-up
shuts off gas control system
and energizes
blower motor if furnace overheats.
Recommended
AS SHIPPED
Yellow
To change
must be checked
sensor, gas valve,
gradually
block
off return air after furnace
has been
operating
for a period of at least 5 minutes. As soon as
limit control
has shut off burners,
return-air
opening
LEAD COLOR
blower
the safety controls
that
is complete.
The flame
This control
air-circulating
to
Table 18 - Speed Selection
* Continuous
Controls
and pressure
switch were all checked
section as part of normal operation.
Failure to follow this caution may result in damage to the heat
exchangers
due to over temperature
or condensate corrosion.
1. NEVER
Safety
- Factory
motor
motor
setting.
speed
selections
lead from control
for
heating
HI-HEAT
mode,
terminal.
(See
Fig. 37.) Select desired blower motor speed lead from one of the
other motor leads and relocate it to HI-HEAT terminal.
See Table
18
for
lead
color
identification.
SPARE terminal. Follow
of LO-HEAT
and COOL
Set Blower
Reconnect
this same procedure
speed selection.
original
for proper
lead
on
10TURNS
selection
FROM UNIT 24-VOLT
TERMINAL BLOCK
Off Delay
a. Remove
Blower
Access
Door if installed.
b. Turn Dip switch 2 and 3 ON or OFF for desired
blower off delay. See Table 11 and 12 or Fig. 36
and 37.
ADJUST
BLOWER
OFF
DELAY
(HEAT
EXAMPLE:
SET
THERMOSTAT
of switches
HEAT
on control
draw readings
R and W.
can
be obtained
2.
at thermostat
center.
Check
Check
Pressure
operation
the
thermostat
amp draw
of
Accurate
amp
subbase
Fig. 61 - Amp
This control
ANTICIPATOR
When
using
a nonelectronic
thermostat,
heat-anticipator
must
be set to match
the
the electrical
components
in R-W/W1
circuit.
- 0.5 AMPS FOR THERMOSTAT
an easy method
should be taken
of obtaining
after blower
measuring
must be
See thermostat
manufacturer's
instructions
for
anticipator
and for varying heating cycle length.
adjusting
When using
per hour.
an electronic
thermostat,
set cycle
of draft inducer.
Check switch
to furnace.
door
outer furnace
lead wires
pressure
and disconnect
inducer
from wire harness.
to furnace.
to "call
for heat"
switch
is functioning
and wait 1 minute.
properly,
hot
surface igniter should not glow, and status code LED
flashes a Status Code 32. If hot surface ignitor glows
when inducer motor is disconnected,
shut furnace
down immediately.
Determine
reason pressure switch
did not function properly and correct condition.
current. If thermostat
has
disconnected
from R and
SW-1
operation
as follows:
d. Set thermostat
actual amp draw.
motor has started
W/W1 wires during current measurement
Return
desired location after completing
the reading.
Switch
proves
c. Turn on 115-v power
terminals
with Ammeter
a. Turn off 115-v power
motor
and furnace
is operating
in low heat. To operate
furnace
in
low-heat, first move SW-1 to ON position,
then connect ammeter
wires as shown
in Fig. 61. The thermostat
anticipator
should
NOT be in the circuit while
no subbase,
the thermostat
Draw
b. Remove
When
Fig. 61 illustrates
The amp reading
SETTING
A80201
MODE)
If desired,
the main blower
off time delay period
may be
lengthened
or shortened
when operating
in the heating mode to
provide greater
comfort.
See Table 11 for position
of switches
and Fig. 36 or 37 for location
5.0 AMPS ON AMMETER
10 TURNS AROUND JAWS
e. Turn off 115-v power
f. Reconnect
to final
door,
heat
rate for 3 cycles
6O
inducer
to furnace.
motor
leads,
and turn on 115-v power
reinstall
supply.
main furnace
CHECKLIST
1. Put away tools
2. Check
and instruments.
SW-1 through
Clean up debris.
SW-3 after completing
ensure
desired settings
for thermostat
blower-OFF
delay (SW-2 and SW-3).
3. Verify flame
rollout
4. Verify that blower
manual
type
(SW-1)
are properly
and
8. Leave
User's
of
Guide with
literature
thermostat.
accessories
packet
per
manufacturer's
owner.
near furnace.
installed.
VENT
CALCULATION
(2-PIPE)
Condensate
INSTALLATION
Drain
Unit Level or Pitched Forward
Heating Load (Btuh)
Cooling
with room
6. Check
operation
instructions.
has continuity.
CHECKLISTmDIRECT
LOAD
to
7. Review
reset switch
and outer doors
5. Cycle test furnace
installation
Load (Btuh)
Internal Tubing Connections
Kinks and Traps
Free of
Furnace Model Selection
External Drain Connection
COMBUSTION
AIR AND VENT
Leak Tight and Sloped
PIPING
Condensate
Termination
Location
Heat Tape Installed if Required
Roof or Sidewall
Termination
Trap Primed before Start-Up
CHECKLIST
- START-UP
Kit - 2 Pipe or Concentric
Combustion-Air
Combustion-Air
Pipe Length
Gas Input Rate
(Set Within 2 percent of Rating Plate)
Pipe Elbow Quantity
Temperature
Vent Pipe Length
Thermostat
Rise Adjusted
Anticipator
Vent Pipe Elbow Quantity
Anticipator
Setting Adjusted or
Pipe Diameter Determined from Sizing Table
Cycle Rate (3 Cycles per Hr) Selected
Pipe Sloped To Furnace
Safety
Pipe Insulation
Controls
Check
Operation
Primary Limit
Over Ceilings ......
Pressure Switch
Low-Ambient
Exposed Pipes
61
CHECKLIST
LOAD
- NON
DIRECT
VENT
CALCULATION
(1-PIPE)
Condensate
INSTALLATION
Drain
Heating Load (Btuh)
Unit Level or Pitched Forward
Cooling
Internal Tubing Connections
Free of Kinks and Traps
Load (Btuh)
Furnace Model Selection
VENT
External
Sloped
PIPING
Drain
Condensate
Termination
Location
Connection
Leak
Tight
and
Trap Primed before Start-Up
Heat Tape Installed if Required
Roof or Sidewall
CHECKLIST--START-UP
Vent Pipe Length
Vent Pipe Elbow Quantity
Gas Input Rate
(Set Within 2 percent of Rating Plate)
Pipe Diameter Determined from Sizing Table
Temperature
Pipe Sloped To Furnace
Thermostat
Anticipator
Pipe Insulation
Anticipator
Over Ceilings
Low-Ambient
Rise Adjusted
Setting Adjusted or
Cycle Rate (3 Cycles per Hr) Selected
Exposed Pipes
Safety
Controls
Check
Operation
Primary Limit
Pressure Switch
Copyright
2008 Carrier Corp. ° 7310 W. Morris St. • Indianapolis,
Manufacturer
reserves
the right to change,
IN 46231
at any time, specifications
and designs
Printed in U.S.A.
without
Edition Date:
notice and without
62
12/08
obligations,
Catalog No: 58MTB-2SI
Replaces:
58MTB-
1St
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.2 Linearized : No Page Count : 62 Page Layout : SinglePage Page Mode : UseNone Producer : Goby Monitor Application version 4, 0, 0, 13 Create Date : Sun Mar 08 04:20:53 2009 Author : Title : Subject :EXIF Metadata provided by EXIF.tools