TRANE Furnace/Heater, Gas Manual L0903221
User Manual: TRANE TRANE Furnace/Heater, Gas Manual TRANE Furnace/Heater, Gas Owner's Manual, TRANE Furnace/Heater, Gas installation guides
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I STALL
GU E
ALL phases
of this installation
must comply with
NATIONAL,
STATE AND LOCAL CODES
*UD-IN-2
18-CD19D7-1
Library
Product Section
Product
Model
Literature Type
Sequence
Date
File No.
Service Literature
Unitary
Furnace -- Gas
*U D
Installer's Guide
2
April 1995
SV-UN-FURN-*UD-IN-2 4/95
Supersedes
Model:
*UD040C924H
*UD040C930H
*UD060C924H
*UD060C936H
*UD080C924H
*UD080C936H
*UD080C948H
*UD100C936H
* -- The first letter
*UD100C945H
*UD100C948H
*UD100C960H
*UD100C961H
*UD120C954H
*UD120C960H
*UD140C960H
New
Upflow ! Horizontal
Gas-Fired Furnaces
"Fan Assisted
Combustion
System"
may be "A" or "T"
IMPORTANT-This Document iscu stomer property and is to remain with this unit.
Please return to service information
pack upon completion of work.
@
Since the manufacturer
has a policy of continuous
product improvement,
it reserves the right to change
specifications
and design without notice.
Pub. No. 18-CD19D7-1
© American Standard
Inc.
1995
INSTALLER
'S GUIDE
CONTENTS
INSTALLATION
General Installation
Instructions
....................................................................................................................................
Location & Clearances
.....................................................................................................................................................
Horizontal
Installation
.....................................................................................................................................................
Air for Combustion
and Ventilation
...........................................................................................................................
Duct Connections ..............................................................................................................................................................
Return Air -- Filters ...................................................................................................................................................
Venting-General Information
.................................................................................................................................
Venting Into a Masonry Chimney ............................................................................................................................
Single Appliance Venting (with Tables) ..............................................................................................................
Common Venting (with Tables) .........................................................................................................................
Venting Examples
..............................................................................................................................................
Electrical
Connections
....................................................................................................................................................
Gas Piping .......................................................................................................................................................................
START-UP
AND ADJUSTMENT
Preliminary
Inspections
.................................................................................................................................................
Combustion
and Input Check ........................................................................................................................................
High Altitude Derate ......................................................................................................................................................
Sequence of Operation
...................................................................................................................................................
Lighting Instructions
.....................................................................................................................................................
Control and Safety Switch Adjustment
.........................................................................................................................
ABNORMAL
CONDITIONS
..............................................................................................................................................
PAGE
2
2
3
3&4
5
5&6
6&7
7
8-11
12-19
20-22
23
23
24
24
24
25
25
26
26
FIELD WIRING
DIAGRAMS
............................................................................................................................................
OUTLINE
DRAWING .........................................................................................................................................................
GENERAL
The manufacturer
assumes
no responsibility
installed in violation of any code or regulation.
LOCATION
for equipment
It is recommended
that Manual
J of the Air Conditioning
Contractors
Association
(ACCA) or A.R.I. 230 be followed in
estimating
heating
requirements.
When estimating
heating
requirements
for installation
at Altitudes
above 2000 ft., remember
the
gas input must be reduced (See GAS INPUT
ADJUSTMENT).
Material
in this shipment
has been
inspected
at the
factory
and released
to the transportation
agency
without known
damage.
Inspect
exterior
of carton
for evidence of rough
handling
in shipment.
Unpack
carefully
after moving equipment
to approximate
location.
If damage to contents
is found, report
the damage immediately
to the delivering
agency.
The location
the builder,
moved into
ments:
AND
27
28
CLEARANCES
of the furnace is normally selected by the architect,
or the installer.
However,
before the furnace
is
place, be sure to consider the following require-
1. Is the location selected as near the chimney
centralized
for heat distribution
as practical?
2. Do all clearances
between the furnace
or exceed the minimums
stated in Table
or vent
and enclosure
1.
and as
equal
3. Is there sufficient space for servicing the furnace and other
equipment?
A minimum
of 24 inches front accessibility
to the
furnace must be provided. Any access door or panel must permit
removal of the largest component.
4. Are there
at least
3 inches
of clearance
between
the furnace
combustion
air openings in the front panel and any closed panel
or door provided?
(See Fig. 1)
Codes and local utility requirements
governing the installation
of gas fired equipment,
wiring, plumbing,
and flue connections
must be adhered to. In the absence of local codes, the installation must conform with the National
Fuel Gas Code ANSI
Z223.1 "latest edition" or CAN/CGA B149 Installation
Codes.
5. Are the ventilation
and combustion
air openings
large
enough and will they remain unobstructed?
If outside air is
used, are the openings set above the highest snow accumulation
level? (See the Air for Combustion
and Ventilation
section)
The latest code may be obtained from the American
Gas Association Laboratories,
8501 E. Pleasant
Valley Rd., Cleveland,
Ohio 44131.
6. Allow sufficient height in supply plenum above the furnace
to provide for cooling coil installation,
if the cooling coil is not
installed
at the time of this furnace installation.
These furnaces
have been classified as Fan Assisted Combustion system CATEGORY I furnaces as required by ANSI Z21.47
"latest edition"
and CAN/CGA 2.3.
Therefore
they do not
require any special provisions
for venting other than what is
indicated in these instructions.
(Category I defined page 6).
7. A furnace
shall be installed
protected
from water.
NOTE: To prevent
shortening
its service
life, the furnace
should not be used as a "Construction
Heater"
during
the
finishing
phases
of construction.
The low return
air
temperatures
can lead to the formation
of condensate
even though
this is a non-condensing
model.
Condensate
in the presence
of chlorides
and fluorides
from paint,
varnish
stains,
adhesives,
cleaning
compounds,
and cement
create
a corrosive
condition
which
may
cause
rapid deterioration
of the heat exchanger.
Page 2
so electrical
components
are
8. If the furnace is installed in a residential
garage,
it must
be installed
so that the burners,
and the ignition
source are
located not less than 18 inches above the floor and the furnace
must be located or protected
to avoid physical
damage from
vehicles.
CAUTION:
Do not install
contaminated
atmosphere.
the
furnace
WARNING:
Do not install
the furnace
ing, tile or other combustible
material
flooring.
in a corrosive
directly
other
Pub.
or
on carpetthan wood
No. 18-CD19D7-1
INSTALLER
MINIMUM CLEARANCE
TO COMBUSTIBLE
'S GUIDE
MATERIALS
UPFLOW CLOSET
LEFT SIDE
RIGHT SIDE
FLUE
HORIZONTAL
0 INCHES
0 INCHES (+)
6 INCHES (#)
CLOSET
TOP
FLUE
FRONT
ALCOVE
TOP
FLUE
FRONT
1 INCH (+)
6 INCHES (+)
18 INCHES
3 INCH
1 INCH
BACK
SIDES
0 INCHES
0 INCHES
NOTES:
(1) Minimum clearance to the front on the *UD140 model is 6 inches.
(2) May be installed on combustible flooring when TYPE B-1 vent pipe is
When the 14-1/2" width models are installed in a horizontal position and a single
wall vent pipe is used, a 6 inch clearance must be supplied between the vent
pipe and combustible flooring.
TABLE
INSTALLATION
This furnace may be installed
in an attic or crawl space in the
horizontal
position by placing the furnace on the left or right
side (as viewed from the front in the upright position).
The
horizontal
furnace installation
in an attic should be on a service
platform
large enough to allow for proper clearances
on all
sides and service
access to the front of the furnace,
(See
Clearance
Table and Figure 1). If the furnace is suspended,
it
must be supported at both ends and in the middle with clearance
allowed for removal of both access doors. Line contact is only
permissible
between lines formed by the intersection
of the top
and two sides of the furnace
casing and the building joists,
studs, or framing.
//
BACK
SIDES
(See Note 2)
# - May be 1 inch when TYPE B-1 vent pipe is used.
+ - For 14-1/2" cabinets, 3 inches when single wall vent pipe is used.
HORIZONTAL
3 INCHES (See Note 1
0 INCHES
1 INCH
(See Note 2)
2 INCHES (+)
6 INCHES (#)
3 INCHES (Note 1)
HORIZONTAL
FRONT
BACK
TOP
// // //
//
used.
*-Frst
ettermaybe
A or T
1
Provisions
for combustion
and ventilation
air shall be made in
accordance
with "latest edition" of Section 5.3, Air for Combustion and Ventilation,
of the National
Fuel Gas Code, ANSI
Z223.1, or Sections 7.2, 7.3 or 7.4 of CAN/CGA B149 Installation
Codes, and applicable
provisions
of the local building
codes.
Special conditions created by mechanical
exhausting
of air and
fireplaces
must be considered
to avoid unsatisfactory
furnace
operation.
Furnace
locations may be in "confined space" or "unconfined
space".
Unconfined
space is defined in Table 2 and Figure 2.
These spaces may have adequate
air by infiltration
to provide
air for combustion,
ventilation,
and dilution
of flue gases.
Buildings with tight construction
(for example, weather stripping, heavily insulated,
caulked, vapor barrier, etc.), may need
additional
air provided as described for confined space.
NO
DOORS
50 CU. FT. OR MORE
PER 1000 BTU/HR. INPUT
ALL EQUIP. INSTALLED
WATER
_U_AC_
m
CLOTHES
UNCONFINED
FIGURE
TABLE
TYPICAL HORIZONTAL ATTIC INSTALLATION
FIGURE
AIR
FOR
COMBUSTION
1
No. 18-CD19D7-1
MINIMUM AREA IN SQUARE FEET FOR
UNCONFINED
SPACE INSTALLATIONS
AND VENTILATION
Adequate
flow of combustion
and ventilating
air must not be
obstructed
from reaching the furnace. Air openings provided in
the furnace
casing must be kept free of obstructions
which
restrict the flow of air. Airflow restrictions
affect the efficiency
and safe operation of the furnace.
Keep this in mind should you
choose to remodel or change
the area which contains
your
furnace.
Furnaces
must have a free flow of air for proper
performance.
Pub.
2
2
FURNACE MAXIMUM
BTUH / INPUT
RATING
WITH 8 FOOT CEILING
MINIMUM AREA IN SQUARE FEET
OF UNCONFINED SPACE
40,000
60,000
80,000
100,000
120,000
140,000
250
375
500
325
750
875
Page
3
INSTALLER
'S GUIDE
CONFINED
CONFINED
AiR FROM
LESS THAN 50 CU. FT.
PER 1000 BTU/HR. iNPUT
ALL EQUIP iNSTALLED
FIGURE
I
3
Confined
spaces are installations
with less than 50 cu. ft. of
space per 1000 BTU/hr input from all equipment
installed.
Air
for combustion
and ventilation
requirements
can be supplied
from inside the building as in Figure 4 or from the outdoors, as
in Figure 5.
1. All air from inside the building as in Figure 4, Page 4: The
confined space shall be provided with two permanent
openings
communicating
directly with an additional
room(s) of sufficient
volume so that the combined
volume of all spaces meets the
criteria
for an unconfined
space.
The total input of all gas
utilization
equipment
installed
in the combined space shall be
considered
in making this determination.
Refer
to Table 3,
Page 4, for minimum
open areas required.
2. All air from outdoors as in Figure 5, Page 4: The confined
space shall be provided
with two permanent
openings,
one
commencing
within 12 inches of the top and one commencing
within 12 inches of the bottom of the enclosure.
The openings
shall communicate
directly, or by ducts, with the outdoors
or
spaces (crawl or attic) that freely communicate
with the outdoors.
Refer to Table 3, Page 4, for minimum
open areas
required.
3. The following
types of installations
will require
use
OUTDOOR AIR for combustion,
due to chemical exposures:
*
*
*
*
*
Commercial
Buildings
Furnaces
Furnaces
Furnaces
SPACE
iNSiDE BUiLDiNG
CONFINED
PERMANENT
OPENINGS
FIGURE
CONFINEDSPACE
CONFINED SPACE -_
AiR FROM VENTILATED ATTIC/CRAWL SPACE
ATTIC LOUVERS
TO OUTDOORS
of
CONFINED"
SPACE
ALTERNATE
iNLET AIR
Exposure
to the following substances
in the combustion
supply will also require OUTDOOR AIR for combustion:
* Permanent
wave solutions
* Chlorinated
waxes and cleaners
* Chlorine based swimming
pool chemicals
* Water softening chemicals
* Deicing salts or chemicals
* Carbon Tetrachloride
* Halogen type refrigerants
* Cleaning
solvents (such as perchloroethylene)
* Printing
inks, paint removers,
varnish,
etc.
* Hydrochloric
acid
* Cements
and glues
* Antistatic
fabric softeners for clothes dryers
* Masonry acid washing materials
air
CONFINED SPACE
AiR FROM
LOUVERS
TO OUTDOORS
i
CSNFINEDSPACE
TABLE 3
MINIMUM FREE AREA IN SQUARE INCHES
Furnace
Maximum
BTUH/INPUT
Page 4
Rating
Air
From
Inside
40,000
60,000
80,000
100,000
120,000
140,000
100
100
100
100
120
140
FIGURE
FURNACE ONLY)
Air From Outside
Vertical
Duct
10
15
20
25
30
35
4
CONFINED SPACE
AIR FROM OUTDOORS
buildings
with indoor pools
installed in commercial
laundry rooms
installed in hobby or craft rooms
installed near chemical storage areas.
EACH OPENING
--
SPACE
The following
Horizontal
Duct
20
30
40
50
60
70
warning complies
5
with Stats of California
Mw, Proposition
65.
&WAR NING: .o.o,,oo.
Exposure to fuel substances
or by-products
of incomplete
fuel combustion
are believed by the State of California to
cause cancer, birth defects, or other reproductive harm.
Pub.
No. 18-CD19D7-1
INSTALLER
DUCT
'S GUIDE
CONNECTIONS
Air duct systems should be installed
in accordance
with standards for air conditioning
systems,
National
Fire Protection
Association Pamphlet No. 90. They should be sized in accordance
with ACCA Manual
D or whichever
is applicable.
Check on
controls to make certain they are correct for the electrical supply.
I
l//
CUT OUT
FOR
SIDE
FILTER
LOCATING
NOTCHES
PROVIDED
FOR SIDE
RETURN
CUTOUT
Central furnaces, when used in connection
with cooling units,
shall be installed
in parallel
or on the upstream
side of the
cooling units to avoid condensation
in the heating
element,
unless the furnace
has been specifically
approved
for downstream installation.
With a parallel
flow arrangement,
the
dampers
or other means used to control flow of air shall be
adequate to prevent chilled air from entering the furnace, and if
manually
operated,
must be equipped with means to prevent
operation of either unit unless the damper is in full heat or cool
position.
All return air duct
return air filters.
On any job, flexible connections
of nonflammable
material may
be used for return
air and discharge
connections
to prevent
transmission
of vibration.
Though these units have been specifically designed for quiet, vibration
free operation,
air ducts can
act as sounding boards and could, if poorly installed, amplify the
slightest
vibration
to the annoyance
level.
7. Connect duct work to furnace.
See Outline Drawing on page
28 for supply and return duct size and location.
Flexible duct
connectors
are recommended
to connect both supply and return
air ducts to the furnace.
If only the front of the furnace is
accessible,
it is recommended
that both supply and return air
plenums are removable.
When the furnace is located in a utility room adjacent
to the
living area, the system should be carefully designed with returns
which minimize noise transmission
through the return air grille.
Although these winter air conditioners
are designed with large
blowers operating at moderate speeds, any blower moving a high
volume of air will produce audible noise-which could be obj ectionable -when the unit is located very close to a living area. It is often
advisable to route the return air ducts under the floor or through
the attic.
Such design permits
the installation
of air return
remote from the living area (i.e. central hall).
8. When replacing
a furnace, old duct work should be cleaned
out. Thin cloths should be placed over the registers
and the
furnace fan should be run for 10 minutes.
Don't forget to remove
the cloths before you start the furnace.
When the furnace is installed so that the supply ducts carry air
circulated
by the furnace to areas outside the space containing
the furnace, the return air shall also be handled by a duct(s)
sealed to the furnace and terminating
outside the space containing the furnace.
Where there is no complete
return
duct system, the return
connection
must be run ful! size from the furnace
to a
location
outside
the utility
room,
basement,
attic,
or
crawl space.
Do Not install
RETURN
AIR
return
air through
DUCT
1. Set the furnace
the back of the furnace
cabinet.
in place.
the insulation
around
3. The side panels of this furnace include locating notches that
are used as guides for cutting an opening for return air, Refer to
Figure 6 and the outline drawing on page 28 for duct connection
dimensions
for various furnaces.
4. If a 3/4" flange is to be used for attaching
the air inlet duct,
add to cut where indicated by solid lines in Fig. 6. Cut corners
diagonally
and bend outward to form flange.
5. If flanges are not required,
along knockout
guidelines.
and a filter frame
is installed,
cut
6. The filter retainer is factory supplied for bottom return. Use
the filter retainer on side or bottom if filter is to be used within
the furnace cabinet.
No. 18-CD19D7-1
of Furnace
* SEE
RETURN
OUTLINE
DRAWING
FIGURE
6
systems should provide
for installation
of
AIR FILTER
Furnaces are factory supplied -with a high velocity cleanable
air filter which may be located within the furnace blower
partment
in either a BOTTOM or SIDE (left side or right
return air inlet. Some filters
may need to be trimmed
side or bottom
filter use. See Outline
Drawing.
type
comside)
for
To replace filter, remove the blower access door, Push the filter
back and up to clear the front filter retaining
bracket. The filter
will flex (or bow). Gently pull the filter out. Replace the filter
in the same manner,
making sure that the filter is secured in
both front and back brackets.
Replace the blower access door.
Use high velocity
replacement
filter only.
TABLE
4
MODEL
NUMBER
CABINET
WIDTH
FILTER
SIZE
*UD040C924H
*UD040C930H
*UD060C924H
*UD060C936H
14-1/2
1 -16X25X1
*UD080C924H
*UD080C936H
*UD080C948H
*UD100C936H
*UD100C945H
17-1/2
1 -17X25X1
*UD100C948H
*UD100C960H
*UD120C954H
21
1 - 20 X 25 X 1
*UD100C960H
*UD120C960H##
*UD140C960H##
24-1/2
1 - 24 X 25 X 1
CONNECTION
2. For side return installations,
remove
the opening in the blower compartment.
Pub.
_FRONT
* - First letter may be "A" or "T"
## - Requires 2 sides; side and bottom; or bottom only return,
Page
5
INSTALLER
'S GUIDE
FILTER
FILTER
RETAINER
,.\BLOWER
ACCESS
_R
-,%
Typical
Bottom
Return
BLOWER
"-'ACCESS
DOOR
Filter
Typical
FIGURE
Side
RETAINER
If side air return
retainer brackets
them
on the side.
BRACKETS
The following
the front doors.
b. Remove
the filter.
FIGURE
VENTING
These furnaces have been classified as Fan-Assisted Combustion System, Category I furnaces under the "latest edition"
provisions of ANSI Z21.47 and CAN/CGA 2.3 standards, which
operate with a non-positive vent static pressure and with a flue
loss of not less than 17 percent.
NOTE: If desired, a sidewall termination can be accomplished
through the use of an "add-on" draft inducer. The indueer must
be installed according to the inducer manufacturer's
instructions. Set the barometric pressure relief to achieve -0.02 inch
water column.
NOTE: When an existing furnace is removed from a venting
system serving other appliances,
the venting system is likely to
be too large to properly vent the remaining
attached appliances.
The following
steps shall be followed
with each appliance
connected to the venting system placed in operation,
while any
other appliances
connected
to the venting system are not in
operation:
openings
in the venting
system;
b. Inspect the venting system for proper size and horizontal
pitch as required
in the National Fuel Gas Code, ANSI Z223.1
or the CAN/CGA B149 Installation
Codes and these instrucPage 6
instructions
should be used:
e. Reinstall
the filter retainer
(See Figure
7A "Typical
remove
brackets
Side Return
the 4 screws
holding
on the desired
the
side.
Filter").
7B
PIPING
a. Seal any unused
AIR
Filter
GENERAL
VENT
SIDE
place the unit on its back.
d. Using a 5/16" nut driver,
filter retainer brackets.
Horizontal
FOR
is desired, it is necessary
to move the 2 filter
from the bottom of the furnace and reinstall
a. Remove
c. Carefully
Horizontal
Filter
7A
FILTER
RETURN
Typical
Return
INSTRUCTIONS
tions. Determine there is no blockage or restriction, leakage,
corrosion and other deficiencies which could cause an unsafe
condition;
c. In so far as is 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.
Turn on clothes dryers and any appliances
not
connected
to the venting
system.
Turn on any exhaust
fans,
such as range hoods and bathroom
exhausts,
so they will
operate at maximum
speed. Do not operate a summer exhaust
fan. Close fireplace dampers;
d. Follow the lighting instructions.
Place the appliance
being
inspected
in operation.
Adjust thermostat
so the appliance
shall operate continuously;
e. Test for draft hood equipped appliance
spillage at the draft
hood relief opening after 5 minutes of main burner operation.
Use the flame of a match or candle;
f After it has been determined
that each appliance remaining
connected to the venting system properly vents when tested as
outlined above, return doors, windows, exhaust fans, fireplace
dampers and any other gas-burning
appliance to their previous
condition of use;
Pub.
No. 18-CD19D7-1
INSTALLER
g. If improper venting is observed during
the venting system must be corrected.
any of the above tests,
All vent installations
must be in accordance
with the "latest
edition" provisions of the National Fuel Gas Code, ANSI Z223.1
section 7 and/or CAN/CGA B149 Installation
Codes or the Vent
Tables.
The furnace
shall be connected
to a factory
built chimney
or vent complying
with
a recognized
standard,
or a
masonry
or concrete
chimney
lined with a lining
material acceptable
to the authority
having
jurisdiction.
NOTE: Furnace
ney or concrete
VENTING
venting
chimney
INTO
into an unlined
is prohibited.
A MASONRY
masonry
chim-
CHIMNEY
If the chimney is oversized, the liner is inadequate, or flue-gas
condensation is a problem in your area, consider using the
chimney as a pathway or chase for type "B" vent or flexible
vent liner. If flexible liner material is used, size the vent using
the "B" vent tables, then reduce the maximum capacity by 20%
(multiply 0.80 times the maximum capacity).
TABLE 5
MASONRY CHIMNEY VENTING
Tile Lined Chimney
Type Furnace
Internal
External
Chimney
"B" Vent
Lining
Flexible Metal
Liner
Single Fan
Assist
No
No
Yes
*Yes
Fan Assist
+
Fan Assist
No
No
Yes
:l¢ye
s
Fan Assist
+
Natural
Yes
No
Yes
:ltye
S
* Flexible chinmey liner size is determined
by using the type "B" vent size for the
available
BTUH input, then reducing the maximum
capacity by 20% (multiply
maximum
capacity
times 0.80). The rninin_um capacity
is the same as shown in
the "B" vent tables.
Internal
Masonry
5. When vent connections must pass through walls or partitions
of combustible
material,
a thimble must be used and installed
according to local codes.
6. Vent pipe through
the roof should be extended
to a height
determined
by National Fuel Gas Code or local codes. It should
be capped properly to prevent rain -water from entering the vent.
Roof exit should be waterproofed.
7. Use type "B" double -wall vent
through cool spaces, (below 60°F).
Chimney
is routed
for comfort,
use
in the venting
Z223.1 "latest
10. Vent connectors
serving
appliance
vented by natural
draft
or non-positive
pressure
shall not be connected
into any portion
of a mechanized
draft system
operating
under
positive
pressure.
11. Horizontal
pipe runs must be supported
by hangers,
straps
or other suitable material
in intervals
at a minimum
of every
3 feet of pipe.
12. A furnace
shall not be connected
serving a separate
appliance
designed
to a chimney
or flue
to burn solid fuel.
13. The flow area of the largest
section of vertical
vent or
chimney shall not exceed 7 times the smallest listed appliance
categorized vent area, flue collar area, or draft hood outlet area
unless designed
in accordance
with approved
engineering
methods.
Maximum
Vent or Tile
Lined Chimney
Flow Area
*Draf_hood
outlet
diameter,
flue collar
diameter,
or listed
ROOF PITCH
FLAT
OVER
OVER
OVER
OVER
OVER
OVER
OVER
OVER
OVER
OVER
appliance
MINIMUM
TO 7/12
7112 TO 8/12
8112 TO 9/12
9/12 TO 10/12
10/12 TO 11/12
11/12 TO 12/12
12/12 TO 14/12
14/12 TO 16/12
16/12 TO 18/12
16/12 TO 20/12
20/12 TO 22/12
* THIS REQUIREMENT
The following installation
practices are recommended
to minimize corrosion caused by condensation
of flue products
in the
furnace and flue gas system.
number
pipe
9. Apply other good venting practices as stated
section of the National
Fuel Gas Code ANSI
edition".
Venting of fan assisted
appliances
into external chimneys (one
or more walls exposed to outdoor temperatures),
requires
the
chimney be lined with type "B", double wall vent or suitable
flexible chimney
liner material.
This applies in all combinations of common venting as well as for fan assisted
appliances
vented alone.
1. Avoid an excessive
vent
_(D*) 2
= _
categorized
X 7
vent diameter.
TABLE 6
GAS VENT TERMINATION
NOTE:
The chimney liner must be thoroughly
inspected
to
insure no cracks or other potential
areas for flue gas leaks are
present in the liner. Liner leaks will result in early deterioration of the chimney.
Masonry
when
8. Where long periods of airflow are desired
long fan cycles instead of continuous
airflow.
Chimneys
Venting
of fan assisted
appliances
into a lined, internal
masonry chimney is allowed only if it is common vented with at
least one natural
draft appliance;
OR, if the chimney is lined
with type "B", double wall vent or suitable flexible liner material, (See Table 5).
External
'S GUIDE
HEIGHT
1.0 FEET *
1.5 FEET
2.0 FEET
2.5 FEET
3.25 FEET
4.0 FEET
5.0 FEET
6.0 FEET
7.0 FEET
7.5 FEET
8.0 FEET
COVERS
MOST INSTALLATIONS
VERTICAL
WALL
8' MIN.
LISTED
CAP
LOWEST DISCHARGE
OPENING
(
of bends.
2. Horizontal
runs
should
pitch
upward
3. Horizontal
runs
should
be as short
at least
12
1/4" per foot.
_'.\
ROOF
PITCH
iS )(//12
as possible.
4. All vent pipe or connectors should be securely supported
and
must be inserted
into, but not beyond the inside wall at the
chimney vent.
Pub. No. 18-CD19D7-1
THE VENT TERMINATION
SHOULD NOT BE
LESS THAN 8 FT FROM A VERTICAL WALL
FIGURE
8
Page
7
INSTALLER
'S GUIDE
SIZING OF VENTING SYSTEMS SERVING APPLIANCES EQUIPPED WITH DRAFT HOODS AND APPLIANCES LISTED FOR USE WITH TYPE B VENTS
elbows in the venting system.
For vent configurations
with lateral lengths, the venting tables include allowance
for two 90 degree (1.57 rad) elbows. For each additional 90
degree (1.57 rad) elbow, or equivalent beyond two, the
maximum capacity listed in the venting table should be
reduced by 10 percent (0.90 x maximum table capacity).
Definitions.
The following definitions apply to tables in
the venting portion of this Installer's Guide:
Fan-Assisted
Combustion
System
- An appliance
equipped with an integral mechanical means to either draw
or force products of combustion through the combustion
chamber and/or heat exchanger.
FAN Min. - The minimum appliance input rating of a
Category I appliance with a fan-assisted combustion system
that could be attached to the vent.
Note:
FAN+FAN
- The maximum
rating of one or more fan-assisted
common vent.
combined
appliances
FAN+NAT - The maximum
rating of one or more fan-assisted
common vent.
combined appliance
appliances attached
NAT+NAT - The maximum
or more draft hood equipped
common vent.
appliance
attached
input
to the
input
to the
Zero ("0") lateral ("L") shall apply only to a straight
vertical-vent attachment
to a top outlet draft hood or flue
collar.
4.
Sea-level input ratings shall be used when determining
maximum capacity for high-altitude
installation.
Actual
input (derated for altitude) shall be used to determine
minimum capacity for high altitude installation.
5.
Numbers
followed by asterisk
(*) in Tables J-3, J-4 and J-5
indicate
the possibility
of continuous
condensation,
depending
on locality.
Consult
local serving gas supplier
or local codes.
NA- Vent configuration
or geometric constraints.
Notes
!.
for Single
Appliance
is not applicable
vent
height
Vents:
(See Tables
('T') is at least
8.
J-1 to J-5)
i0 feet;
(b) Vents for appliance draft hood outlets or flue collars
12 inches in diameter or smaller are not reduced more
than one table size;
9.
For appliances with more than one input rate, the minimum vent capacity determined from the tables shall be
greater than the highest appliance input rating.
Listed corrugated
chimney-liner
systems in masonry
chimneys shall be sized by using Tables J-1 or J-2 for
Type B vents with the maximum capacity reduced by
20 percent (0.80 maximum table capacity) and the minimum capacity as shown in Tables J- 1 and J-2. Corrugated
metal venting systems installed with bends or offsets shall
have their maximum capacity reduces. (See Note 2).
If the vertical vent has a larger diameter than the vent
connector, use the vertical vent-connector
diameter to
determine the minimum vent capacity and the connector
diameter to determine the maximum vent capacity. The
flow area of the vertical vent shall not exceed seven times
the flow area of the listed appliance categorized vent area,
flue collar area, or draft hood outlet area, unless designated in accordance with approved engineering methods.
The tables included in this part shall be used for chimneys and vents not exposed to the outdoors below the roof
line. Exterior chimneys or vents exposed to the outdoors
below the roof line may experience continuous condensation depending on locality.
Consult local serving gas
suppliers, or the authority having jurisdiction.
A Type B
vent or listed chimney lining system passing through an
otherwise unused masonry chimney flue shall be considered to be an interior vent system.
(c) Vents for appliance draft hood outlets or flue collars
above 12 inches in diameter are not reduced more than
two table sizes;
10. Vent connectors
(d) The maximum capacity listed in the tables for a fanassisted appliance is reduced by 10 percent (.09 x
maximum table capacity);
11. In a single run of vent or vent connector,
(e) The
draft
diameter.
hood outlet
is greater
Do not connect a 3 inch
4 inch diameter
shall not apply
2.
7.
due to physical
If the vent size determined from the tables is smaller than
the appliance draft hood outlet or flue collar, the smaller
size shall be permitted to be used, provided:
(a) The total
6.
combined input rating of two
appliances attached to the
NR - Vent configuration
is not recommended
due to
potential
for condensate
formation
and/or pressurization
of
the venting
system.
than 4 inches
in
diameter
vent to a
draft hood outlet. This provision
to fan-assisted
appliances.
("e")
Single appliance venting configurations
with zero (0")
lateral lengths in Tables J-l, J-2 and J-5 shall have no
Page 8
to
3.
FAN Max. - The maximum appliance input rating of a
Category I appliance with a fan-assisted combustion system
that could be attached to the vent.
NAT Max. - The maximum input rating of a Category I
appliance equipped with a draft hook that could be attached
to the vent. There are no minimum appliance input ratings
for draft hood equipped appliances.
Two 45 degree (0.79 rad) elbows are equivalent
one 90 degree (1.57 rad) elbow.
shall not be sized upward more than two
sizes greater than the appliance categorized vent diameter, flue collar diameter, or draft hood outlet diameter.
more than one
diameter and type shall be permitted to be used provided
that all the sizes and types are permitted by the tables.
12. Interpolation
shall be permitted in calculating capacities
for vent dimensions which fall between table entries.
13. Extrapolation
mitted.
SEE
EXAMPLES
beyond the table entries
ON PAGES
shall not be per-
20 TO 22.
Pub.
No. 18-CD19D7-1
INSTALLER
TYPICAL
VENTING
Table J-1 shall be used when Type B Double-Wall
Vent Pipe is used for both the vent connector and the
vent.
'S GUIDE
APPLICATIONS
Table J-2 shall be used when a Single Wall Metal Vent
Connector is attached to Type B Double-wall Vent.
VENT
\
VENT CONNECTOR
H
II
VENT CONNECTOR
\,
Note:
::Z-:
D
The appliance may be either Category I
Draft Hood equipped or Fan-assisted type.
FIGURE
Note:
The appliance may be either Category I
Draft Hood equipped or Fan-assisted type.
FIGURE
J-1
Table J-3 shall be used when a Type B Double-Wall Vent
Connector is attached to a Tile Lined Masonry Chimney.
J-2
Table J-4 shall be used when a Single-wall Metal Vent
Connector is attached to a Tile Lined Masonry Chimney,
Tile-Lined
MasonryChirnney---m_
Vent
H
Connecter
_
L --
Note: "A" is the
equivalent cross
sectional area
of the Tile Liner
Note:
The appliance may be either Category I
Draft Hood equipped or Fan-assisted type.
FIGURE
Pub.
No. 18-CD19D7-1
J-3
Note: "A" is the
equivalent cross
sectional area
of the Tile Liner
Note:
The appliance may be either Category I
Draft Hood equipped or Fan-assisted type.
FIGURE
J-4
Page 9
INSTALLER
'S GUIDE
TABLE
Capacity
of Type
Wall Connectors
J-1
B Double-Wall
Vents
with
Serving
a Single
Category
Vent Connector
3,, I
Appliance
Height
H
TABLE
Diameter
Type
B DoubleI Appliance
°"
3,, I
of Btu Per Hour
(fl)
(_)
6
O
2
4
6
8
10
15
2O
3O
5O
0
13
21
25
78
51
49
46
46
36
34
32
O
0
84
2
5
8
12
23
28
57
53
49
O
0
2
5
10
NAT _
Max
O
18
30
36
152
97
94
91
86
67
64
61
50
0
165
40
38
35
16
32
39
109
103
98
88
53
0
12
23
30
61
57
51
42
40
36
O
2
5
0
11
22
94
69
65
10
15
29
35
O
2
5
Appliance
Lateral
L
(ft)
(ft)
Min
205
157
153
149
6
0
2
38
39
4
6
8
Max
NAT
Max
0
32
50
59
375
232
227
223
251
157
153
149
141
105
103
100
94
0
276
155
0
415
235
75
71
66
25
42
51
178
171
164
120
115
109
28
53
64
263
255
247
180
173
165
175
100
0
295
166
0
447
255
17
32
41
118
113
104
81
77
70
23
41
54
194
187
176
129
124
115
26
52
67
289
280
267
195
188
175
58
48
44
0
15
30
191
136
130
112
93
87
0
20
39
327
226
219
187
150
142
0
22
49
502
339
330
285
225
217
59
53
42
39
40
48
121
112
82
76
51
61
206
195
135
128
64
76
315
301
208
198
0
10
21
97
75
71
61
51
48
0
14
29
202
149
143
119
100
96
0
18
38
349
250
242
202
166
160
0
20
47
540
377
367
307
249
241
10
15
20
28
34
48
64
58
52
44
40
35
38
46
55
133
124
116
89
84
78
50
59
69
229
217
206
150
142
134
62
73
84
351
337
322
228
217
206
O
2
0
9
100
81
64
56
0
13
213
166
128
112
0
14
374
283
220
185
0
18
587
432
336
280
5
10
15
20
30
21
27
33
56
NR
77
70
64
58
NR
54
50
NR
NR
NR
28
37
44
53
73
160
150
141
132
113
108
102
96
90
NR
36
48
57
66
88
275
262
249
237
214
176
171
163
154
NR
45
59
70
80
104
421
405
389
374
346
273
261
249
237
219
O
2
5
10
15
0
8
20
26
59
101
86
82
76
70
67
61
NR
NR
NR
g
11
27
35
42
216
183
177
168
158
134
122
119
114
NR
0
14
35
45
54
397
320
312
299
287
232
206
200
190
180
0
15
43
56
66
633
497
487
471
455
363
314
308
298
288
20
30
NR
NR
NR
NR
NR
NR
50
69
149
131
NR
NR
63
84
275
250
169
NR
76
99
440
410
278
259
Diameter
areas
3"
Height
H (ft)
Lateral
L (R)
6
FAN
Min- Max
2
5
10
NR
2
5
10
15
28
25 _
31
28*
25 _
NR
2
NR
2
5
10
15
20
30
2
5
10
15
20
30
50
33*
28 _
NR
NR
38"
36 _
NR
NR
NR
NR
41"
NR
NR
NR
NR
NR
2
5
61
57
50*
NR
NR
NR
NR
NR
NR
FAN
Min- Max
NR
62
55*
48*
NR
74
68 _
60*
NR
NR
NR
82*
76"
67*
NR
NR
NR
NR
NR
NR
NR
NAT
Max
103
96
87
NR
I MaxI
Min
Max
I Max
Min
Max
I Max
77
51
45
36
59
60
151
96
85
66
85
85
249
156
140
104
126
123
373
231
204
156
NR
NR
NR
NR
33
31
74
83
92
89
63
60
102
114
152
147
102
99
146
163
225
220
152
148
0
2
5
37
39
NR
83
56
NR
50
39
37
58
59
77
164
108
102
93
75
69
83
83
107
273
176
168
154
119
114
123
121
151
412
261
252
234
179
171
8
NR
NR
33
90
95
64
122
161
107
175
243
163
0
2
5
10
37
39
52
NR
87
61
56
NR
53
41
39
34
57
59
76
97
174
117
111
100
99
80
76
68
82
82
105
132
293
193
185
171
165
128
122
112
120
119
148
188
444
287
277
261
254
194
186
171
15
0
36
93
57
56
190
111
80
325
186
116
499
283
2
5
10
15
38
51
NR
NR
69
63
NR
NR
47
44
39
NR
57
75
95
NR
136
128
116
NR
93
86
79
72
80
102
128
158
225
216
201
186
149
140
131
124
115
144
182
220
337
326
308
290
224
217
203
192
0
35
96
60
54
200
118
78
346
201
114
537
306
2
5
10
15
2O
37
50
NR
NR
NR
74
68
NR
NR
NR
50
47
41
NR
NR
56
73
93
NR
NR
148
140
129
NR
NR
99
94
86
80
NR
78
100
125
155
186
248
239
223
208
192
165
158
146
136
126
113
141
177
216
254
375
363
344
325
306
248
239
224
210
196
0
2
5
10
15
34
37
49
NR
NR
99
80
74
NR
NR
63
56
52
NR
NR
53
55
72
91
115
211
164
157
144
131
127
111
106
98
NR
76
76
98
122
151
372
281
271
255
239
219
183
173
168
157
110
109
136
171
208
584
429
417
397
377
334
279
271
257
242
20
30
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
181
NR
223
NR
NR
NR
246
NR
357
NR
228
NR
0
2
33
36
99
84
66
61
51
53
213
181
133
121
73
73
394
318
230
205
105
104
629
495
361
312
5
10
15
20
30
48
NR
NR
NR
NR
80
NR
NR
NR
NR
NR
NR
NR
NR
NR
70
89
112
NR
NR
174
160
148
NR
NR
117
NR
NR
NR
NR
94
118
145
176
NR
308
292
275
257
NR
198
186
174
NR
NR
131
162
199
236
315
482
461
441
420
376
305
292
280
267
NR
2O
30
5O
107
97
89*
NR
124
116
107
97
83*
NR
137
128"
115"
107"
91"
NR
FAN
Min- Max
NR
NR
NR
138"
128"
NR
NR
NAT
Max
Height
H fit)
Lateral
L (R)
6
2
5
162
148
139
10
2
5
10
179
15
201
184
172
159
148"
20
NR
30
NR
216
198
184"
171"
159"
NR
251"
230*
50
Diameter
areas
NAT
Max
NR
28
25'
NR
31
28
24*
2
5
10
15
NR
2
5
10
15
20
2
5
10
15
20
30
Minimum
with
Single-Wall
Category
I Appliance
(D in inches) - To be used with
within size limits at bottom
4"
FAN
Min - Max
NAT
Max
NR
52
4
NR
61
56
49:
35'
32 _
27
NR
NR
NR
38
35'
NR
NR
NR
NR
41
NR
NR
NR
NR
NR
NR
NR
NR
NR
6"
FAN
Min - M_x
NAT
Max
FAN
Min - M_x
NAT
Max
NR
86
81
NR
130
116
NR
102
95
86
NR
161
147
137
67
61
54*
46'
NR
113
106
96
87*
NR
178
163
151
138
NR
73
67'
59'
NR
NR
NR
123
115
105
95
80*
NR
200
183
170
156
144"
NR
81
75*
66*
NR
NR
NR
NR
136
127
113'
105'
88*
NR
NR
215
196
182'
168
155'
NR
NR
NR
NR
Chimney
5"
FAN
Min - Max
2
5
10
15
20
30
215"
199"
185"
NR
Internal
Chimney
A Single
3"
164
153
141
NR
of Masonry
Serving
Connector
130
117
161"
151"
NR
Capacity
Connectors
Chimney
114
NR
92*
NR
NR
F I__ __INAT
I
Max
6"
86
82
67
NR
NR
NR
10
15
20
30
Minimum
52
49
35 _
5
10
15
20
NR
°"
of Btu Per Hour
Min
Vent
5"
NAT
Max
5,, I
Input Rating in Thousands
I0
B Double-Wall
I Appliance
(D in inches) - To be used with
within size limits at bottom
FAN
Min- Max
- D (inches)
TABLE J-4
Type
Category
4"
NAT
Max
Diameter
Metal
Max
Max/
TABLE J-3
Connector
with
Single-Wall
I Appliance
4,, I
!A'_I"AT
I
Height
H
NAT _
Max I Min
0
27
39
47
Capacity
of Masonry
Chimney
with
Vent
Connectors
Serving
A Single
Vents
Category
Vent Connector
5,, I
Input Rating in Thousands
NAT _
Max
of Type B Double-Wall
Serving
a Single
- D (inches)
4,, I
Lateral
L
FAN
Min
Max
Capacity
Connectors
J-2
91
NR
NR
NR
NR
NR
NR
160'
149'
NR
136_
124"
NR
NR
250'
228
NR
212'_
195'
180'
NR
Internal
Area
of Chimney
Square
Inches
MaximumInternal
-
12
19
28
38
Area
of Chimney
Square
Inches
MaximumInternal
-
12
19
28
38
Area
of Chimney
Square
Inches
-
49
88
137
198
Area
of Chimney
Square
Inches
-
49
88
137
198
* Possibility
Page
I0
of continuous
condensation
Possibility
of continuous
condensation
Pub.
No. 18-CD19D7-1
INSTALLER
Table
Capacity
of Single-Wall
Vents
Serving
a Single
Metal
J-5
Pipe
Draft
'S GUIDE
or
Hood
Type
B Asbestos
Equipped
Cement
Appliance
Vent Diameter - D (inches)
Height
"H"
Lateral
L
(ft.)
(ft.)
6
0
2
5
39
31
28
7O
55
5t
116
94
88
170
14t
128
232
194
177
312
260
242
5OO
415
39O
75O
62O
6OO
0
2
5
10
42
32
29
24
76
61
56
49
126
102
95
86
185
154
14t
131
252
210
194
180
340
281
264
250
542
451
43O
4O6
815
68O
648
625
0
2
5
10
15
45
35
32
27
NR
84
67
61
54
46
138
111
104
94
82
2O2
168
153
143
130
279
233
215
2OO
186
372
311
289
284
258
6O6
5O5
48O
455
432
912
76O
724
7OO
666
0
2
5
10
15
2O
49
39
35
30
NR
NR
91
72
67
58
50
NR
15t
122
110
103
93
82
223
186
170
158
144
132
312
26O
24O
223
2O7
195
420
350
325
308
291
273
684
57O
540
5t4
488
466
1040
865
825
795
760
726
0
2
5
10
15
2O
53
42
38
32
NR
NR
101
80
74
65
55
NR
163
136
123
115
104
91
252
210
192
178
163
149
342
286
264
246
228
214
470
392
364
345
326
306
770
641
610
571
550
525
1190
990
945
910
870
832
0
2
5
10
15
2O
3O
56
44
NR
NR
NR
NR
NR
108
84
78
68
NR
NR
NR
183
148
137
458
113
99
NR
276
230
210
196
177
163
NR
384
32O
296
274
258
24O
192
529
44t
410
388
366
344
295
878
730
694
656
625
596
540
1370
1140
1080
1050
1000
960
890
0
2
5
10
15
2O
3O
NR
NR
NR
NR
NR
NR
NR
120
95
NR
NR
NR
NR
NR
210
171
159
146
NR
NR
NR
310
260
234
221
100
185
NR
443
37O
342
318
292
276
222
590
492
474
456
407
384
330
980
820
780
730
705
670
605
1550
1290
1230
1190
1130
1080
1010
8
10
15
20
30
50
Pub.
No. 18-CD19D7-1
3"
4"
5"
Maximum Appliance
6"
7"
Input Rating in Thousands
8"
10"
12"
of Btu Per Hour
Page 11
INSTALLER
Notes
J-10)
1,
for
'S GUIDE
Multiple
Vents:
(See
The maximum vent connector horizontal
connector diameter
as follows:
Connector
Tables
length
to
inch of vent-
(Feet)
(mm)
(m)
3
(76.2)
4½
(1.37)
4
(102)
6
(1.83)
5
6
(127)
(152)
71½
9
(2.29)
(2.74)
7
(178)
101½
(3.20)
8
(203)
12
(3.65)
9
(229)
131½
(4.11)
10
12
(254)
(305)
15
18
(4.57)
(5.49)
14
(356)
21
(6.40)
16
(406)
24
(7.32)
18
(457)
27
(8.22)
20
22
(508)
(559)
30
33
(9.14)
(10.06)
24
(610)
36
(10.97)
above
conditions:
The
permitted
under
maximum
reduced
tiple
the
capacity
more
of the
than
following
of the vent
I0 percent
length
listed
connector
for each
above.
For
shall
not be
additional
example,
mul-
the
maxi-
mum length
listed
is 6 feet (1.83 m).
above for a 4 inch (120 mm) connector
With a connector
length
greater
than
12 feet
but
(3.66
maximum
(0.80
mm)
capacity
x maximum
not
exceeding
18 feet (5.49
must
be
by
vent
reduced
In
this
connector
case,
for
and
common
vent
termination
shall
vent,
as if the
If vent
mon
connectors
vent,
common
x maximum
the
other
are
venting
vent
tables
each
appliance
vent
from
be treated
appliances
combined
maximum
common
shall
capacity).
m), the
20
percent
capacity;
(b) The minimum
capacity
shall be determined
to the corresponding
single appliance
table
J-2).
the
the
entire
appliance
as a single
were
not
to entering
vent
capacity
Figure
vent
to the
appliance
present.
prior
be reduced
(See
by referring
(Tables
J-1 to
the
com-
listed
in the
by 10 percent
(0.90
J-9).
The
length
of
the common
vent connector
manifold
(L o) shall not exceed
1½ feet (18 inches)
(457 mm) for each inch
(25.4 mm) of
common
vent connector
manifold
diameter
(D).
4,
5.
If the common vertical vent is offset as shown in Figure J-10,
the maximum
common vent capacity listed in the common
venting tables shall be reduced by 20 percent (0.80 x maximum vent capacity), the equivalent of two 90 degree (1.57 rad)
elbows.
The horizontal
length of the common vent offset
shall not exceed 1½ feet (457 mm) for each inch (25.4 mm) of
common vent diameter.
Excluding
elbows counted in (4) above, for each additional
elbow in excess of two, the maximum capacity of that portion
of the venting system shall be reduced by 10 percent.
Note:
6.
Page
Two 45 degree (0.79 rad) elbows
one 90 degree (1.57 rad) elbow.
are equivalent
The common vent diameter
shall be at least as large
largest vent connector diameter.
12
Interconnection
mon vent.
fittings
must
be the
same
size
as the
com-
8.
Sea-level
input ratings
shall be used when determining
maximum
capacity
for high-altitude
installation.
Actual
input (derated
for altitude)
shall be used to determine
minimum
capacity for high-altitude
installation.
9.
For multiple units ofgas utilization
equipment
all located on
one floor, available total height ("H") shall be measured
from
the highest draft hood outlet or flue collar up to the level of
the cap or terminal.
Connector rise ("R") shall be measured
from the draft hood outlet or flue collar to the level where the
vent gas streams come together.
(Not applicable
to multistory).
11. The size of the lowest connector
and of the vertical
vent
leading
to the lowest interconnection
of the multistory
system shall be in accordance
with Table J-1 or J-2 for
available total height ("H") up to the lowest interconnection.
(See Figure J-11).
vent utilizing
the
than those listed
are
7.
10. For multistory
installations,
available
total height ("H")
shall be the vertical distance between the highest draft hood
outlet or flue collar entering
that segment and the center
line of the next higher interconnection
tee. (See Figure J- 11).
The vent connector
shall be routed
to the
shortest
possible
route.
Longer
connectors
(a)
3.
J-6
Maximum
Connector
Horizontal
Length
Diameter
(Inches)
2.
Appliance
to
as the
12. Vertical common vents
multistory
systems.
shall have
no offsets
when
used in
13. When two or more appliances
are connected
to a vertical
vent or chimney,
the flow area of the largest
section of
vertical vent shall not exceed seven times the flow area of the
smallest
flue collar area or draft hood outlet area unless
designed
in accordance
with approved
engineering
methods.
14. For appliances
with more than one input rate, the minimum
vent capacity determined
from the tables shall be less than
the lowest appliance
input rating and the maximum
vent
capacity determined
from the tables should be greater than
the highest appliance
input rating.
15. Listed corrugated
metallic chimney
liner systems
in masonry chimneys should be sized by using Tables J-6 or J-7 for
Type
B vents with the maximum
capacity
reduced
by
20 percent (0.80 x maximum
table capacity) and the minimum capacity as shown in Tables J-6 or J-7. Corrugated
metal venting systems installed with bends or offsets require
additional
reduction
of the vent maximum
capacity.
(See
Note 5)
16. The tables included in this part shall be used for chimneys
and vents not exposed to the outdoors below the roof line.
Exterior chimneys or vents exposed to the outdoors below
the roof line may experience eontinuous condensation depending on the locality. Consult local serving gas suppliers,
to the authority havingjurisdietion.
A Type B vent or listed
chimney lining system passing through an otherwise unused chimney flue shall be considered to be an interior vent
system.
17. Vent connectors shall not be sized upward more than two
size greater than the appliance categorized vent diameter,
flue collar diameter, or draft hood outlet diameter.
18. All combinations of pipe sizes, single-wall, and double-wall
metal pipe shall be allowed within any connector run(s) or
within the common vent provided all of the appropriate
tables permit all of the desired sizes and types, as if they
were used for the entire length of the subject connector or
vent. Ifa single-wall and Type B double-wall metal pipe are
used for vent connectors, the common vent must be sized
Pub.
No. 18-CD19D7-1
INSTALLER
using
Table J-7 or J-9 as appropriate.
diameter
19. The draft hood outlet or flue collar of the smallest
input
appliance
shall be located closest to, or under, the common
vent.
20. When a table permits more than one diameter
used for a connector or vent, all the permitted
permitted
to be used.
Note:
In general,
of pipe to be
sizes shall be
permitted
21. Interpolation
shall
for vent dimensions
22. Extrapolation
ted.
C
heat loss.
be permitted
in calculating
capacities
which fall between table entries.
beyond
the table entries
SEE EXAMPLES
ON PAGES
it is preferable
to use the smallest
TYPICAL
COMMON
VENTING
APPLICATIONS
Table J-6 shall be used when Type B vent connectors
are attached to a Type B common vent.
to minimize
'S GUIDE
shall not be permit-
20 TO 22.
Table J-7 should be used when single-wall metal vent
connectors are attached to a Type B common vent.
="=3
I
'-IF TYPE B N VENT
,17
--IIIL
H
CONNECTOR
CONNECTOR
RISE"R2"
APPLIANCE1
APPLIANCE2
APPLIANCE1
1
1
Note:
Note:
The appliance may be either Category I
Draft Hood equipped or Fan-assisted
type.
FIGURE
J-5
Table J-8 shall be used when Type B double-wall vent
connectors are attached to a tile lined masonry chimney.
The appliance may be either Category I
Draft Hood equipped or Fan-assisted
type.
FIGURE
J-6
Tile-Lined
H
Note: "A" is the
equivalent cross
sectional area
of the Tile Liner
MasenryChimney
A
t
t
__L
R
Note:
I
Table J-9 shall be used when single-wall metal vent
connectors are attached to a tile lined masonry chimney.
Tile-Lined
Masonry
Chimney
Note: "A" is the
equivalent cross
sectional area
of the Tile Liner
APPLIANCE2
R
The appliance may be either Category I
Draft Hood equipped or Fan-assisted type.
FIGURE
Pub. No. 18-CD19D7-1
J-7
R
_1
Note:
The appliance may be either Category I
Draft Hood equipped or Fan-assisted type.
FIGURE
J-8
Page 13
INSTALLER
'S GUIDE
TYPICAL
COMMON
VENTING
APPLICATIONS
(Cont.)
EXAMPLE A: Manifold Common Vent Connector
L shall be no greater than eighteen times the common vent
connector manifold inside diameter;
i.e. a 4-inch inside diameter common vent connector
mani-
fold shall not exceed 72 inches in length. (See Note 3.)
Lo < 18D
Lo
lm
R
Note:
This is an illustration of a typical manifold vent connector.
are possible. Consult the notes for Common Venting.
FIGURE
Different appliance, vent connector, or common vent types
J-9
EXAMPLE B: Offset Common Vent
Note:
This is an illustration of a typical Offset Vent. Different appliance, vent connector, or vent types are possible.
the notes for Single Appliance and Common Venting.
FIGURE
Page
14
Consult
J-10
Pub.
No. 18-CD19D7-1
INSTALLER
TYPICAL
VENTING
APPLICATIONS
'S GUIDE
(Cont.)
Figure J-I 1
Multistory
Gas Vent Design
Procedure
(See Notes:
for Each Segment
of System
9, 10, 11, 12 and 13)
Tn Same $;ze
as Se_ent
Above
Multistory
Pub.
Gas Vent Design Procedure
Segment of System
for Each
Vent Connector Size Depends on:
Common Vent Size Depends on:
*
Input
*
Combined Inputs
*
Rise
*
Available Total Height "H"
*
Available Total Height "H"
*
Table J-6 Common Vent
*
Table J-6 Connectors
*
Vertical Common Vent with no Offsets
No. 18-CD19D7-1
Page 15
INSTALLER
'S GUIDE
TYPICAL
VENTING
APPLICATIONS
F;gure
Multistory
(See
Notes:
(Cont.)
J-12
Vent
Systems
9, 10, 11, 12 and
13)
Cop
Pri_€_p|es of Desi_r_ _ Multis_@_f Ve_s U$i_9
Ve_t Co..e©tor a_d C_mm_
Ve_ Des_p_ Tables
Page
16
Pub.
No. 18-CD19D7-1
INSTALLER
TABLE
Capacity
of Type
B Double-Wall
Vents
with
Type
J-6A
B Double-wall
Connectors
Vent Connector
8,,
I
4,,
I
5,,
I
Diameter
6,,
Serving
Two
or more
Category
I Appliances
- D (inches)
I
7,,
8,,
I
9,,
I
10,,
Connector
Height
H
Rise
R
(fl)
(fi)
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
6
I
2
3
22
23
24
37
41
44
26
31
35
35
37
38
66
75
81
46
55
62
46
48
49
106
121
132
72
86
96
58
60
62
164
183
199
104
124
139
77
79
82
225
253
275
142
168
189
92
95
97
296
333
363
185
220
248
109
112
114
376
424
463
237
282
317
128
131
134
466
526
575
289
345
386
8
I
2
3
22
23
24
40
44
47
27
32
36
35
36
37
72
80
87
48
57
64
49
51
53
114
128
139
79
90
101
64
66
67
176
195
210
109
129
145
84
86
88
243
269
290
148
175
198
100
103
105
320
356
384
194
230
258
118
121
123
408
454
492
248
294
330
138
141
143
507
564
612
303
358
102
10
I
2
22
23
43
47
28
33
34
36
78
86
50
59
49
51
123
136
78
93
65
67
189
206
113
134
89
91
257
282
154
182
106
109
341
374
200
238
125
128
436
479
257
305
146
149
542
596
314
372
3
24
50
37
37
92
67
52
146
104
69
220
150
94
303
205
111
402
268
131
515
342
152
642
417
I
21
50
30
33
89
53
47
142
83
64
220
120
88
298
163
110
389
214
134
493
273
162
609
333
2
3
22
24
53
55
35
40
35
36
96
102
63
71
49
51
153
163
99
111
66
68
235
248
142
160
91
93
320
339
193
218
112
115
419
445
253
286
137
140
532
565
323
365
165
167
658
700
394
444
20
FAN
NAT
FAN
NAT
FAN
Input Rating in Thousands
I
Vent
15
Appliance
'S GUIDE
NAT
FAN
NAT
of Btu Per Hour
FAN
NAT
FAN
NAT
FAN
NAT
FAN
NAT
I
21
54
31
33
99
56
46
157
87
62
246
125
86
334
171
107
436
224
131
552
285
158
681
347
2
3
22
23
57
60
37
42
34
35
105
110
66
74
48
50
167
176
104
116
64
66
259
271
149
168
89
91
354
371
202
228
110
113
463
486
265
300
134
137
587
618
339
518
161
164
425
764
414
466
30
I
2
3
20
21
22
62
64
66
33
39
44
31
33
34
113
118
123
59
70
79
45
47
48
181
190
198
93
110
124
60
62
64
288
299
309
134
158
178
83
85
88
391
408
423
182
215
242
103
105
108
512
535
555
238
282
317
125
129
132
649
679
706
305
360
405
151
155
158
802
840
874
372
439
494
50
I
2
3
19
21
22
71
73
75
36
43
48
30
32
33
133
137
141
64
76
86
43
45
46
216
223
229
101
119
134
57
59
61
349
358
366
145
172
194
78
81
83
477
490
502
197
234
263
97
100
103
627
645
661
257
306
343
120
123
126
797
820
842
330
392
441
144
148
151
984
1014
1043
403
478
528
100
I
2
3
18
19
20
82
83
84
37
44
50
28
30
31
158
161
163
66
79
89
40
42
44
262
267
272
104
123
138
53
55
57
442
447
452
150
178
200
73
75
78
611
619
627
204
242
272
91
94
97
810
822
834
266
316
355
112
115
118
1038
1054
1069
341
405
455
135
139
142
1285
1306
1327
417
494
555
TABLE
Common
Vent
Common
I
4"
5,,
I
Vent
Capacity
J-6B
Capacity
0
Combined
Height
H
FAN
FAN
NAT
I FAN
(ft)
+FAN
+NAT
+NATI+FAN
6
92
81
65
8
101
90
10
110
15
125
20
136
30
152
50
100
I
7,,
Ratingin
NAT
FAN
FAN
+FAN
+NAT
140
116
103
204
161
73
155
129
114
224
178
97
79
169
141
124
243
112
91
195
164
144
283
123
102
215
183
160
138
118
244
210
185
167
153
134
279
244
185
163
NR
311
277
Vent
I
I
8,,
Thousands
I
9,,
I
4,,
FAN
FAN
NAT
+NAT
+NAT
335
672
520
410
480
378
740
577
465
649
522
405
800
627
495
753
612
465
924
733
565
405
842
688
523
1035
826
64O
470
979
808
605
1209
975
74O
706
550
1164
977
705
1451
1188
86O
873
625
1408
1215
800
1784
1502
975
NAT
+NAT
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
147
309
248
200
404
314
260
547
434
163
339
275
223
444
348
290
602
194
178
367
299
242
477
377
315
228
206
427
352
280
556
444
365
314
255
229
475
394
310
621
499
361
297
266
547
459
360
720
585
214
421
353
310
641
547
423
854
NR
489
421
NR
751
653
479
1025
I
5,,
NATIFAN
+FAN
FAN
+NAT
Single-Wal!
FAN
TABLE J-7A
Connectors
I
NATIFAN
Two
or more
Category
I Appliances
- D (inches)
I
7,,
8,,
9,,
I
10,,
(fi)
(fl)
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
6
1
2
3
NR
NR
NR
NR
NR
NR
26
31
34
NR
NR
NR
NR
NR
NR
46
55
62
NR
NR
121
NR
NR
131
71
85
95
NR
168
174
NR
182
198
102
123
138
207
215
222
223
251
273
140
167
188
262
271
279
293
331
361
183
219
247
325
334
344
373
422
462
234
281
316
447
458
468
463
524
574
286
344
385
15
1
2
3
NR
NR
NR
NR
NR
NR
29
34
39
79
83
87
87
94
100
52
62
70
116
121
127
138
150
160
81
97
109
177
185
193
214
230
243
116
138
157
238
246
255
291
314
333
158
189
215
312
321
331
380
411
438
208
248
281
397
407
418
482
522
557
266
317
360
556
568
579
596
646
690
324
387
437
30
1
2
3
47
50
54
60
62
64
31
37
42
77
81
85
110
115
119
57
67
76
113
117
122
175
185
193
89
106
120
169
177
185
278
290
300
129
152
172
226
236
244
380
397
412
175
208
235
296
307
316
497
521
542
230
274
309
378
389
400
630
662
690
294
349
394
528
541
555
779
819
855
358
425
482
1
46
69
33
75
128
60
109
207
96
162
336
137
217
460
188
284
604
245
364
768
314
507
951
384
2
3
49
53
71
72
40
45
79
83
132
136
72
82
114
119
215
221
113
128
170
178
345
353
164
186
226
235
473
486
223
252
294
304
623
640
293
331
376
387
793
816
375
424
520
535
983
1013
458
518
Pub.
I
No. 18-CD19D7-1
I
.AT FA. .AT FA. .AT
n
.AT
n
.AT
n
n
FA. .AT FA. .AT FA. .AT
of Btu Per Hour
I
Connector
Rise
R
Input Rating in Thousands
I
Vent
Height
H
50
Appliance
FAN
Serving
Diameter
6,,
10,,
of Btu Per Hour
+FAN
with
NATIFAN
+NAT
Vent Conne_or
3,,
- D
FAN
+NAT
B Double-Wal!
I
Appliancetnput
+NAT
of Type
Vent Diameter
I
I
Page 17
INSTALLER
'S GUIDE
TABLE
Common
Vent
Common
4"
I
FAN
FAN
D
7,,
8,,
ApptiancelnputRatinginThousandsofBtu
I
9,,
1 O"
PerHour
FAN
FAN
NAT
FAN
FAN
NAT
FAN
FAN
NAT
FAN
FAN
NAT
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
NAT
FAN
FAN
FAN
FAN
NAT
+FAN
+NAT
+NAT
NAT
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
6
89
78
64
136
113
lOO
200
158
144
304
244
196
398
310
257
541
429
332
665
515
407
8
98
87
71
151
126
112
218
173
159
331
269
218
436
342
285
592
473
373
730
569
460
10
106
94
76
163
137
12o
237
189
174
357
292
236
467
369
309
638
512
398
787
617
487
15
121
108
88
189
159
14o
275
221
200
416
343
274
544
434
357
738
599
456
905
718
553
20
131
118
98
208
177
155
305
247
223
463
383
302
606
487
395
824
673
512
1013
808
626
30
145
132
113
236
202
179
250
286
257
533
446
349
703
570
459
958
790
593
1183
952
723
50
159
145
128
268
233
204
406
337
296
622
529
410
833
686
535
1139
954
689
1418
1157
838
of Masonry
J-SA
Chimney
Vent Connector
with
Type
B Double-Wal!
I
5,,
Connectors
I
4,,
Conne_or
INAT
NATI
FAN
INAT
FAN
Connector
Diameter
8,,
I
I
Appliance
FAN
Serving
two
or
more
Category
I Appliances
Capacity
Vent
3,,
Vent
Diameter-
(if)
Capacity
TABLE
Combined
Vent
I
6"
Vent
HeightH
J-7B
Capacity
- D (inches)
7,,
Input Rating in Thousands
NATI
FAN
I
8,,
I
9,,
I
10,,
of Btu Per Hour
INAT
FAN
NATI
FAN
INAT
Height
H
Rise
R
(fl)
(fl)
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
FAN
Max
Max
Min
FAN
Max
NAT
Max
6
I
2
24
26
NR
43
21
28
39
41
62
79
40
52
52
53
106
133
67
85
65
67
194
230
101
124
87
89
274
324
141
173
104
107
370
436
201
232
124
127
479
562
253
330
145
148
599
694
319
378
3
27
49
34
42
92
61
55
155
97
69
262
143
91
369
203
109
491
270
129
633
349
151
795
439
15
I
2
3
24
25
26
48
55
59
23
31
35
38
39
41
93
105
115
44
55
64
54
56
57
154
174
189
74
89
102
72
74
76
277
299
319
114
134
153
100
103
105
384
419
448
174
192
215
125
128
131
511
558
597
229
263
292
153
156
159
658
718
760
297
339
382
184
187
190
824
900
960
375
432
486
30
I
2
3
24
25
26
54
60
64
25
32
36
37
38
40
111
122
131
48
58
66
52
54
56
192
208
221
82
95
107
69
72
74
357
376
392
127
145
163
96
99
101
504
531
554
187
209
233
119
122
125
680
715
746
255
287
317
145
149
152
883
928
968
337
378
418
175
179
182
1115
1171
1220
432
484
535
50
I
2
23
24
52
59
26
31
36
37
116
127
49
58
51
53
209
225
82
96
67
70
405
421
133
152
92
95
582
604
198
222
115
118
798
827
271
304
140
143
1049
1085
362
400
168
172
1334
1379
462
510
3
26
64
37
39
135
66
55
237
108
72
435
170
98
624
247
121
854
334
147
1118
439
176
1421
558
Internal
Area
TABLE J-SB
Common
Vent Capacity
Minimum
12
19
28
Vent
Combined
Height
H
FAN
FAN
NAT
FAN
FAN
NAT
FAN
FAN
(ft)
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
+FAN
+NAT
6
NR
74
25
NR
119
46
NR
8
NR
80
28
NR
130
53
NR
10
NR
84
31
NR
138
56
NR
15
NR
90
36
NR
152
67
NR
20
NR
92
41
NR
159
75
30
NR
NR
NR
NR
NR
50
NR
NR
NR
NR
NR
Page
38
18
Apptiancelnput
of Chimney,
I
I
Ratingin
Square
Inches
50
Thousands
63
78
I
113
of Btu Per Hour
NAT
FAN
FAN
NAT
FAN
FAN
NAT
FAN
FAN
NAT
FAN
FAN
NAT
FAN
FAN
NAT
+NAT
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
178
71
NR
257
103
NR
351
143
NR
458
188
NR
582
246
NR
853
NR
193
82
NR
279
119
NR
384
163
NR
501
218
NR
636
278
NR
937
4O8
207
90
NR
299
131
NR
163
177
NR
538
236
NR
686
302
NR
1010
454
233
106
NR
334
152
NR
177
212
NR
611
283
NR
781
365
NR
1156
546
NR
250
122
NR
368
172
NR
212
243
NR
668
325
NR
858
419
NR
1286
648
NR
NR
270
137
NR
404
198
NR
243
278
NR
747
381
NR
969
496
NR
1473
749
NR
NR
NR
NR
NR
NR
NR
NR
278
328
NR
831
461
NR
1089
606
NR
1692
922
Pub.
No. 18-CD19D7-1
INSTALLER
Capacity
of Masonry
TABLE J-9A
Vent Connector
Chimney
Capacity
with
Single-Wal!
Connectors
Vent Connector
3
Vent
I
4
I
5
I
Connector
Diameter
6
Appliance
two
I
7
Category
I Appliances
I
8
I
9
I
10
of Btu Per Hour
.AT
m
or more
- D (inches)
Input Rating in Thousands
FA. "ATI FA. .AT FA. "ATI
m
Serving
'S GUIDE
"ATI
.AT FA. "ATI FA. .AT
m
n
Height
H
Rise
R
(ft)
(ft)
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
Min
Max
Max
6
1
2
3
NR
NR
NR
NR
NR
NR
21
28
34
NR
NR
NR
NR
NR
NR
39
52
61
NR
NR
134
NR
NR
153
66
84
97
179
186
193
191
227
258
100
123
142
231
239
247
271
321
365
140
172
202
292
301
309
366
432
491
200
231
269
362
373
381
474
557
634
252
299
348
499
509
519
594
696
793
283
331
375
15
30
1
NR
NR
23
NR
NR
43
129
151
73
199
271
112
268
376
171
349
502
225
445
646
291
623
808
360
2
3
NR
NR
NR
NR
30
34
92
96
103
112
54
63
135
141
170
185
88
101
207
215
295
315
132
151
277
286
411
439
189
213
359
368
548
586
256
289
456
466
706
755
334
378
634
646
884
945
402
437
1
2
3
NR
NR
NR
NR
NR
NR
24
31
35
86
91
95
108
119
127
47
57
65
126
132
138
187
203
216
80
93
105
193
201
209
347
366
381
124
142
160
259
269
277
492
518
540
183
205
229
338
348
358
665
699
729
250
282
312
430
442
452
864
908
946
330
372
412
600
613
626
1089
1145
1193
455
49O
521
1
NR
NR
25
85
113
48
124
204
80
188
392
130
252
567
194
328
778
265
417
1022
355
582
1302
537
2
3
NR
NR
NR
NR
31
35
89
94
123
131
57
65
130
136
218
231
94
106
196
205
408
422
149
167
262
271
588
607
218
243
339
349
806
831
298
328
429
440
1058
1090
393
431
596
610
1346
1386
567
595
Internal
Area
50
TABLE
J-9B
Common
Vent
Capacity
Minimum
12
19
I
28
Vent
Combined
Height
H
FAN
FAN
NAT
(ft)
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
6
NR
73
25
NR
118
8
NR
79
25
NR
10
NR
83
31
15
NR
88
16
20
NR
90
30
NR
50
NR
Appliance
Square
in Thousands
FAN
FAN
+NAT
+NAT
+FAN
+NAT
+FAN
+NAT
+NAT
45
NR
176
71
NR
255
102
NR
348
128
52
NR
190
81
NR
276
118
NR
380
NR
136
56
NR
205
89
NR
295
129
NR
NR
149
66
NR
230
105
NR
335
150
NR
4O
NR
157
74
NR
247
120
NR
362
170
NR
NR
NR
NR
NR
NR
266
135
NR
398
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
FAN
NAT
NAT
FAN
FAN
Connector
Capacity
78
Common
Vent
Capacity
Connector
Rise
R"
(ft.)
3"
FAN
NAT
FAN
FAN
NAT
FAN
FAN
NAT
+NAT
+NAT
+FAN
+NAT
+NAT
+FAN
+NAT
+NAT
142
NR
455
187
NR
579
245
NR
846
NR
162
NR
497
217
NR
633
277
NR
928
405
405
175
NR
532
234
NR
680
300
NR
1000
450
460
210
NR
602
280
NR
772
360
NR
1139
540
NR
503
240
NR
661
321
NR
849
415
NR
1264
640
195
NR
558
275
NR
739
377
NR
957
490
NR
1447
710
NR
NR
612
325
NR
821
456
NR
1076
600
NR
1672
910
+NAT
FAN
NAT
J-1O
are
the Exact
4"
Maximum Appliance
5"
Same
Vent
Values
Diameter - D (inches)
6"
Input Rating in Thousands
7"
8"
of Btu Per Hour
6 to 8
1
2
3
21
28
34
40
53
61
68
86
98
102
124
147
146
178
204
205
235
275
15
1
2
3
23
30
35
44
56
64
77
92
102
117
134
155
179
194
216
240
265
298
30
1
2
3
25
31
36
49
58
68
84
97
107
129
145
164
190
211
232
270
295
321
and up
No. 18-CD19D7-1
113
FAN
FAN
of a Single-Wall
Metal Pipe or Type B Asbestos
Cement
Serving
Two or More Draft Hood Equipped
Appliances
and
I
+FAN
NAT
Vent Connector
Total Vent
Height
"H ....
(ft.)
63
of Btu Per Hour
+FAN
FAN
Capacity
Pub.
Inches
I
Input Rating
Table
Vent
of Chimney,
36
Page 19
INSTALLER
'S GUIDE
TABLE J-11
MASONRY
CHIMNEY
WITH
NOMINAL
LINEAR SIZE
CIRCULAR
INSIDE
DIMENSION
INCHES
4 X 8
IN
LINEAR INCHES
2-1/2 X 6-1/2
8 X 8
6-3/4 X 6-3/4
LINEAR
EQUIVALENTS
INSIDE DIAMETER
OR EQUIVALENT
DIAMETER
INCHES
EQUIVALENT
AREA
4
SQUARE INCHES
122
5
6
19.6
28.3
7
38.3
7.4
42.7
8
50.3
8 X 12
6-1/2 X 10-1/2
9
10
63.6
78.5
12 X 12
9-3/4 X 9-3/4
10.4
83.3
11
95
11.8
107.5
12
14
113
153.9
12 X 16
9-1/2 X 13-1/2
16 X 16
13-1/4 X 13-1/4
14.5
15
162.9
176.7
16 X 20
13 X 17
16.2
206.1
18
254.4
20 X 20
16-3/4 X 16-3/4
18.2
20
260.2
314.1
20 X 24
16-1/2 X 20-1/2
20.1
3142
22
380.1
22.1
380.1
24
452.3
24 X 24
20-1/4
X 20-1/4
24 X 28
20-1/2
X24-1/4
24.1
4562
28 X 28
24-1/2
X 24-1/4
26.4
27
543.3
572.5
30 X 30
25-1/2
X 25-1/2
27.9
607
30
706.8
749.9
855.3
30 X 36
25-1/2
X 31-1/2
30.9
33
36 X 36
31-1/2
X 31-1/2
34.4
929.4
36
1017.9
122,000
186,000
EXAMPLES
USING SINGLE
APPLIANCE
VENTING
TABLES
EXAMPLE
1: Single Draft Hood-equipped
Problem:
An
Question:
What size vent should be used assuming:
(a) a 5-foot lateral
single-wall
metal vent
connector is used with two 90-degree elbows, or
(b) a 5-foot lateral
single-wall
metal vent
connector is used with three 90-degree elbows in
the vent system?
Appliance
installer
has a 120,000 Btu/hr
appliance with a 5-inch diameter
hood outlet that needs to be vented
10-foot high Type B vent system.
x 0.90 = 110,000
From Table J-2, Select
When liner sizes differ dimensionally from those shown in this table, equivalent
diameters may be determined from published tables for square and rectangular
ducts of equivalent carrying capacity or by other engineering methods.
Solution:
Venting
Systems
Serving
Appliances
Equipped
with Draft Hoods, Category
I Appliances,
and
Appliances
Listed for Use with Type B Vents Venting
Tables, Category
I, Central
Furnaces).
This implies that the 5-inch diameter
vent has an
adjusted
capacity of only 110,000 Btu/hr.
In this
case, the vent system
must
be increased
to
6 inches in diameter.
See calculations
below:
DIMENSIONS
input
draftinto a
Table J-2 should be used to solve this problem
because single-wall metal vent connectors are
being used with a Type B vent.
(a) Read down the first column in Table J-2 until
the row associated with a 10-foot height and 5-foot
lateral is found. Read across this row until a vent
capacity greater than 120,000 Btufar is located in
the shaded columns labelled "NAT Max" for draft
hood-equipped appliances.
In this case, a 5-inch
diameter vent has a capacity of 122,000 Btufar
and may be used for this application.
for 5-inch Vent
6-inch Vent:
x 0.90 = 167,000;
This
is greater
than the required 120,000, therefore,
use a 6-inch Vent when three elbows
are used.
EXAMPLE
2 - SINGLE
FAN-ASSISTED
Problem:
An installer
has an 80,000 Btu/hr
input fanassisted
appliance
that must be installed
using
10 feet of lateral connector to a 30-Ft high Type B
vent.
Two 90 ° elbows
are needed
for the
installation.
Question:
Can a single-wall
this application?
Solution:
Table J-2 refers to the use of single-wall
metal
vent connectors
with Type B vent.
In the first
column find the row associated
with a 30-foot
height and a 10-foot lateral.
Read across this row,
looking
at the "FAN Min" and "FAN Max"
columns, to find that a 3 inch diameter
single-wall
metal
connector
vent
is not recommended.
Moving
to the
next
larger
size single-wall
connector (4-inch), we find that a 4-inch diameter
single-wall
metal connector
has a recommended
minimum
vent capacity
of 91,000 Btu/hr and a
recommended
maximum
vent
capacity
of
144,000 Btu/hr.
The 80,000 Btu/hr fan-assisted
appliance
is outside this range, so we conclude
that a single-wall
metal vent connector cannot be
used to vent this appliance
using 10 feet of lateral
for the connector.
metal
APPLIANCE
vent connector
be used for
However, we see that if the 80,000 Btu/hr input
appliance
could be moved to within 5 feet of the
vertical
vent, then a 4-inch single-wall
metal
connector
could be used to vent the appliance.
Table J-2 shows the acceptable
range of vent
capacities for a 4-inch vent with 5 feet of lateral to
be between 72,000 Btu/hr and 157,000 Btu/hr.
If the appliance
cannot be moved closer to the
vertical vent, then Type B vent could be used as
the connector
material.
In this case, Table 8
shows that for a 30-Ft vent with 10 feet of lateral,
the acceptable
range of capacities
for a 4 inch
diameter
vent
attached
to a fan-assisted
appliance
is between
37,000
Btu/hr
and
150,000 Btu/hr.
(b) If three 90-degree elbows are used in the vent
system, then the maximum vent capacity listed in
the tables must be reduced by 10 percent (See note
2 for Single Appliance Vents in Exhibit J, Sizing of
Page 20
Pub.
No. 18-CD19D7-1
INSTALLER
EXAMPLE
3: Interpolating
Problem:
An installer
has an 80,000 Btu/hr input appliance
with a 4-inch diameter
draft hood outlet that needs
to be vented into a 12-foot high Type B vent. The
vent connector
has a 5-foot lateral length and is
also Type B.
Between
Table
be vented
Values
Question:
Can this appliance
diameter
vent?
using
Solution:
Table J-1 is used in the case of an all Type B vent
system. However, since there is no entry in Table
J-1 for a height of 12 feet, interpolation must be
used.
The capacity
In the common vent capacity portion of Table J-7,
find the row associated
with a 30-foot vent height
and read over to the NAT+NAT
portion of the
6-inch diameter
eolumn to find a maximum-combined capacity
of 257,000 Btu/hr.
Since the two
appliances
total only 185,000 Btu/hr,
a 6-inch
common vent may be used.
EXAMPLE
5A: CommonVenting
Water
Heater
with
into a Type B Vent
Problem:
In this case, a 35,000 Btu/hr input draft hoodequipped water heater with 2 feet of connector rise
and 4 feet of horizontal
length is to be common
vented -with a 100,000 Btu/hr fan-assisted
furnace
with 3 feet of connector rise and 6 feet of horizontal
length. The common vent consists of a 30-foot rise
of Type B vent. The installer
would like to use a
single-wall
metal vent connector.
for a vent system with a 12-foot height is equal to
the capacity
for a 10-foot height plus 2/5 of the
dif%rence between the 10-foot and 15-foot height
values, or 77,000 + 2/5 x 10,000 - 81,000 Btu/hr.
Therefore, a 4-inch diameter
tion.
EXAMPLES
Since both vent connector
horizontal
lengths are
less than the maximum
lengths listed in Note 1,
the table values may be used -without adjustments.
a 4-inch
Read down the 4-inch diameter
"NAT Max" column to the row
associated
with 10-foot height and 5-foot lateral to
find the capacity
value of 77,000 Btu/hr.
Read
down further
to the 15-foot height, 5-foot lateral
row to find the capacity value of 87,000 Btu/hr.
The difference between the 15-foot height capacity
value and the 10-foot height
capacity
value is
10,000 Btu/hr.
USING
vent may be used in the installa-
COMMON
VENTING
4: Common
Venting
equipped
Appliances
Problem:
A 35,000 Btu/hr water heater
is to be common
vented with a 150,000 Btu/hr furnace,
using a
common vent with a total height of 30 feet. The
connector rise is 2 feet for the water heater with a
Two
Draft
Solution:
Hood-
horizontal
length of 4 feet. The connector rise for
the furnace is 3 feet with a horizontal
length of
8 feet. Assume single-wall
metal connectors
will
be used with Type B vent.
Question:
What size connectors and combined
used in this installation?
vent should be
Solution:
Table J-7 should be used to size single-wall
metal
vent connectors
attached
to Type B vertical vent.
In the vent connector
capacity
portion of Table
J-7, find the row associated
with a 30-foot vent
height. For a 2-foot rise on the vent connector for
the water heater,
read the shaded columns for
draft hood-equipped
appliances
to find that a 3-inch
diameter connector has a capacity of 37,000 Btu/hr.
Therefore, a 3-inch single-wall
metal vent connector may be used with the water heater.
For a draft hood-equipped
furnace
with a 3-foot
rise, read across the appropriate
row to find that a
5-inch diameter
vent connector
has a maximum
capacity or 120,000 Btu/hr (-which is too small for
the furnace), and a 6-inch diameter
vent connector
has a maximum
vent capacity of 172,000 Btu/hr.
Therefore, a 6-inch diameter vent connector should
be used with the 150,000 Btu/hr furnace.
Pub.
No. 18-CD19D7-1
a Draft Hood-equipped
a Fan-assisted
Furnace
Question: What are the recommended
vent diameters for each connector and the common vent?
TABLES
EXAMPLE
'S GUIDE
Furnace
- (Table J-7)
Water
Heater
Vent Connector
Diameter
- Since the water heater vent connector
horizontal
length of 4 feet is less than the maximum value listed in Note 1, the venting
table
values may be used without adjustments.
Using
Table J-7 (Vent Connector
Capacity),
read down
the Total Vent Height "H" column to 30 feet and
read across the 2-foot Connector
Rise "R" row to
the first Btu/hr rating in the "NAT Max" column
that is equal to, or greater than, the water heater
input rating.
The table shows that a 3-inch vent
connector has a maximum
input rating of 37,000
Btu/hr. Since this is greater than the water heater
input rating, a 3-inch vent connector is adequate.
Furthermore,
since the water heater is equipped
with a draft hood, there are no minimum
input
rating restrictions.
Vent Connector
Diameter
- Using Table J-7 (Vent
Connector
Capacity),
read down the Total Vent
Height "H" column to 30 feet and read across the
3-foot Connector Rise "R" row. Since the furnace
has a fan-assisted
combustion
system, find the
first "FAN Max" column
with a Btu/hr
rating
greater than the furnace input rating.
The 4-inch
vent connector
has a maximum
input rating of
119,000 Btu/hr and a minimum
input rating of
85,000 Btu/hr. The 100,000 Btu/hr furnace in this
example falls within this range, so a 4-inch connector is adequate.
Since the furnace vent connector
horizontal
length of 6 feet is less than the maximum value listed in Note 1, the venting
table
values may be used without
adjustment.
If the
furnace had an input rating of 80,000 Btu/hr, then
a Type B vent connector (See Table J-6) would be
needed in order to meet the minimum
capacity
limit.
Page 21
INSTALLER
'S GUIDE
Common
Vent Diameter
- The total input to the common vent is 135,000 Btu/hr.
Using Table J-7, (Common Vent Capacity) read down the Total Vent Height
"H" column to 30 feet and across this row to find the
smallest vent diameter
in the "FAN+NAT"
column
that has a Btu/hr rating equal to, or greater
than
135,000 Btu/hr. The 4-inch common vent has a capacity of 132,000 Btu/hr and the 5-inch common vent has
a capacity of 202,000 Btu/hr.
Therefore,
the 5-inch
common vent should be used in this Example.
Summary
- In this Example,
the installer
may use a
3-inch diameter,
single-wall
metal
vent connector
for
the water
heater
and a 4-inch
diameter,
single-wall
metal
vent connector
for the furnace.
The common
vent
should
be a 5-inch
diameter
Venting
Type
Into
mum input rating of 127,000 Btu/hr and a minimum
input rating of 95,000 Btu/hr.
The 100,000 Btu/hr
furnace in this example falls within this range, so a
4-inch connector is adequate.
Masonry
Chimney.
Area for a Nominal
From Table J-11, the Equivalent
Liner size of 8 inches X 12 inches
is 63.6 square inches. Using Table J-9 (Common Vent
Capacity), read down the "Fan+Nat" column under the
Minimum Internal Area of Chimney value of 63, to the
row for 30 foot height, to find a capacity value of
739,000 Btu/hr.
The combined input rating of the
furnace and water heater, 135,000 Btu/hr, is less than
the table value, so this is an acceptable installation.
B vent.
EXAMPLE
5B - Common
Chimney
a Masonry
Problem:
In this case, a 35,000 Btu/hr input draft
hood-equipped
water heater with 2 feet of
connector rise and 4 feet of horizontal
length
is to be common vented with a i00,000 Btu/hr
fan-assisted
furnace with 3 feet of connector
rise and 6 feet of horizontal
length. The
common vent is a clay tile lined masonry
chimney with a 30 foot height. The internal
dimensions
of the clay tile liner are nominally 8 inches X 12 inches.
Question:
Assuming the same vent connector heights,
laterals, and materials found in Example 5A,
what are the recommended
vent connector
diameters
and is this an acceptable installation?
Solution:
Table J-9 is used to size common venting
installations
involving single wall connectors into masonry chimneys.
Water
Heater
Vent Connector
Diameter.
Using
Table J-9 (Vent Connector
Capacity),
read down the
Total Vent Height "H" column to 30 feet and read
across the 2-foot Connector
Rise "R" row to the first
Btu/hr rating in the "NAT Max" column that is equal
to or greater than the water heater input rating.
The
table shows that a 3 inch vent connector has a maximum input of only 31,000 Btu/hr, while a 4-inch vent
connector has a maximum
input of 57,000 Btu/hr. A
4-inch vent connector must therefore be used.
Furnace
Vent Connector
Diameter.
Using Table J-9
(Vent Connector Capacity), read down the Total Vent
Height "H" column to 30 feet and across the 3-foot
Connector Rise "R" row. Since the furnace has a fanassisted combustion
system, find the first "FAN Max"
column with a Btu/hr rating greater than the furnace
input rating.
The 4-inch vent connector has a maxi-
Page 22
Pub.
No. 18-CD19D7-1
INSTALLER
ELECTRICAL
CONNECTIONS
NOTE:
The integrated
furnace
control
is polarity
sensitive. The hot leg of the 115 VAC power must be connected
to the BLACK
field lead.
Make wiring connections
to the unit as indicated
on enclosed
wiring diagram.
As with all gas appliances
using electrical
power, this furnace shall be connected into a permanently
live
electric circuit.
It is recommended
that it be provided with a
separate "circuit protection
device" electric circuit. The furnace
must be electrically
grounded in accordance
with local codes or
in the absence of local codes with the National
Electrical
Code,
ANSI/NFPA
70 "latest edition", if an external
electrical source
is utilized.
Field -wiring diagrams
are provided
on Page 27. All field
supplied wiring must conform with the temperature
limitation
for Type T wire [63 ° F (35 ° C)], -when installed
in accordance
with these instructions
and wiring diagrams
supplied with the
furnace.
Refer to the SERVICE FACTS literature
for unit wiring
grams in addition to the diagram inside the blower door.
GAS PIPING
dia-
LEFT
SIDE
PIPING
(STANDARD)
MANUAL MAIN
SHUTOFF
GROUND
UNION JOINT
DRiP LEG
AUTOMATIC GAS VALVE
WiTH MANUAL SHUTOFF
RIGHT
SIDE
PIPING
(OPTIONAL)
This unit is shipped standard
for left side installation
of gas
piping, A piping knockout is also provided in the right side for
an alternate
piping arrangement.
The installation
of piping
shall be in accordance
with piping codes and the regulations
of
the local gas company.
Pipe joint compound
must be resistant
to the chemical reaction with liquefied petroleum
gases.
SHUTOFF VALVE
GROUND
UNION JOINT
Refer to piping Table 7, Page 24, for delivery sizes. Connect gas
supply to the unit, using a ground joint union and a manual
shut-off valve as shown in Figure 9. National
codes require a
condensation
drip leg to be installed
ahead of the controls as
shown in Figure 9.
The furnace and its individual
shut-off valve must be disconnected
testing
'S GUIDE
from the gas supply piping system during
of that system at test pressures
in excess
DRiP LEG
WiTH MANUALSHUTOFF
any pressure
of 1/2 psig.
The furnace must be isolated from the gas supply piping by
closing its individual
manual shut-offvalve
during any pressure
testing of the gas supply piping system at test pressures
equal
to or less than 1/2 psig.
TOP VIEW OF RIGHT
SIDE
PIPING
NOTE: Maximum
pressure to the gas valve for natural gas is
10.5" W.C. Minimum
pressure is 5.0" W.C. Maximum
pressure
to the gas valve for propane is 13.0" W.C. Minim urn pressure is
11.0" W.C.
All gas fittings m ust be checked fi)r leaks using a soapy solution
before ligh ring the furnace. DO NOT CHECK WITH AN OPEN
FLAME!
41
FIGURE
Pub.
No. 18-CD19D7-1
9
Page 23
INSTALLER
START
'S GUIDE
UP AND ADJUSTMENT
PRELIMINARY
With
gas and
INSPECTIONS
electrical
1. Duct connections
2. Filters
Table
power
"OFF"
are properly
sealed
are in place
3. Venting
4. Blower
is properly
assembled
door is in place
Turn knob on main gas valve within the unit to the "OFF"
position.
Turn the external
gas valve to "ON". Purge the air
from the gas lines. After purging, Check all gas connections
for
leaks with a soapy solution
-- DO NOT CHECK
WITH AN
OPEN FLAME.
Allow 5 minutes for any gas that might have
escaped
to dissipate.
LP Gas, being heavier
than air, may
require forced ventilation.
Turn the knob on the gas valve in
the unit to the "ON" position.
COMBUSTION
AND INPUT
CHECK
1. Make sure all gas appliances
are off except
the furnace.
2. Clock the gas meter with the furnace operating
the dial rating of the meter) for one revolution.
3. Match the "Sec" column
the time clocked.
4. Read
clocked.
the
"Flow"
(determine
in the gas flow (in cfh) Table 10 with
column
opposite
the
number
PIPE
SIZE
10
20
LENGTH OF PIPE
30
40
60
60
70
1/2
132
92
73
63
56
50
46
3/4
278
190
152
130
115
105
96
1
520
350
285
245
215
195
180
1-1/4
1050
730
590
520
440
400
370
THIS TABLE
tS BASED
ON PRESSURE
DROP OF 0.3 INCH W.C. AND 0.6 SP.GR.
factors
INPUT
RATING
BTUH
40,000
60,000
80,000
100,000
120,000
NUMBER
OF
BURNERS
MAIN BURNER ORIFICE
DRILLSIZE
NAT. GAS
LP GAS
45
45
45
45
45
56
56
56
56
56
2
3
4
5
6
Table
of seconds
if necessary:
For 1 Cu. Ft. Dial Gas Flow CFH =
Chart Flow Reading + 2
For 1/2 Cu Ft. Dial Gas Flow CFH =
Chart Flow Reading + 4
For 5 Cu. Ft. Dial Gas Flow CFH =
10X Chart Flow Reading + 4
6. Multiply the final figure by the heating value of the gas
obtained
from the utility company and compare to the nameplate rating.
This must not exceed the nameplate
rating.
7. Changes can be made by adjusting
the manifold pressure or
changing orifices (orifice change may not always be required).
a manifold
pressure
b. Remove the slot screw
pressure
adjustment.
GAS
Table 8
ORIFICE SIZES
9
PART NUMBERS FOR REPLACEMENT
5. Use the following
a. Attach
7
NATURAL GAS ONLY
TABLE OF CUBIC FEET PER HOUR OF GAS
FOR VARIOUS PIPE SIZES AND LENGTHS
ORIFICES
DRILL
SIZE
PART
NUMBER
DRILL
SIZE
PART
NUMBER
31
32
33
34
35
36
37
38
39
40
41
44
ORF0384
ORF0499
ORF0387
ORF0386
ORF0488
ORF0500
ORF0385
ORF0497
ORF0517
ORF0408
ORF0502
ORF0501
45
46
47
49
50
51
52
53
54
55
56
57
ORF0694
ORF0909
ORF0910
ORF0503
ORF0493
ORF0494
ORF0495
ORF0504
ORF0492
ORF0693
ORF0907
ORF0908
gauge.
on top of the gas valve
for manifold
c. Turn the adjustment
nut in to increase the gas flow rate, and
out to decrease the gas flow rate using a 3/32" hex wrench.
d. The final manifold pressure
setting shall be no less than 3.5"
W.C. and no more than 4.0" W.C. with an input of no more than
nameplate
rating and no less than 93 % of the nameplate
rating,
unless the unit is derated for high altitude.
For LP gases, the final manifold pressure (outlet) shall be no less
than 10.5" W.C. and no more than 11.0" W.C. with an input of
no more than the nameplate
rating and no less than 93% of the
nameplate
rating, unless the unit is derated for altitude.
HIGH
ALTITUDE
DERATE
It may be necessary to change burner orifices due to the altitude
of the installation.
Ratings of these furnaces are based on sea
level operation
and should not be changed at elevations
up to
2,000 ft. If the installation
is 2,000 ft. or above, refer to National
Fuel Gas Code 8.1.2, and Appendix
F, Table F4, for proper
orifice sizing at high altitudes.
Installations
above 4,000 feet may require
change.
If required,
use the BAYHALT***
Accessory Kit) listed in PRODUCT DATA.
a pressure
switch
Kit (High Altitude
Table 8 lists the main burner orifices shipped -with the furnace,
Ifa change of orifices is required to correct the input rate, refer
to Table 9.
Page 24
Pub.
No. 18-CD19D7-1
INSTALLER
TABLE
10
GAS FLOW IN CUBIC FEET PER HOUR
2 CUBIC FOOT DIAL
Flow
Sec.
Flow
Sec.
Flow
Sec.
900
29
248
50
144
82
800
30
240
51
141
84
720
31
232
52
138
86
655
32
225
53
136
88
600
33
218
54
133
90
555
34
212
55
131
92
514
35
206
56
129
94
480
36
200
57
126
96
450
37
195
58
124
98
424
38
189
59
122
100
400
39
185
60
120
104
379
40
180
62
116
108
360
41
176
64
112
112
343
42
172
66
109
116
327
43
167
68
106
120
313
44
164
70
103
124
300
45
160
72
100
128
288
46
157
74
97
132
277
47
153
76
95
136
267
48
150
78
92
140
257
49
147
80
90
144
Sec.
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Flow
88
86
84
82
80
78
76
75
73
72
69
67
64
62
60
58
56
54
53
51
50
SEQUENCE
OF OPERATION
Thermostat
call
'S GUIDE
for heat
R and W thermostat
contacts close signaling the control module
to run its self-check
routine.
After the control module has
verified that the pressure
switch contacts are open and the limit
switch(es) contacts are closed, the draft blower will be energized.
As the induced draft blower comes up to speed, the pressure
switch contacts will close and the ignitor warm up period will
begin. The ignitor -will heat for approx. 17 seconds, then the gas
valve is energized to permit gas flow to the burners.
The flame
sensor confirms
that ignition
has been achieved
within the
6 second ignition trial period.
After the flame sensor confirms that ignition has been achieved,
the delay to fan ON period begins timing and after approx.
45 seconds the indoor blower motor will be energized
and will
continue to run during the heating cycle.
When the thermostat
is satisfied, R and W thermostat
contacts
open, the gas valve will close, the flames will extinguish,
and the
induced draft blower -will be de-energized
after a 5 second post
purge. The indoor blower motor will continue to run for the fan
offperiod (Field selectable at 90,120,150"
or 210 seconds), then
will be de-energized
by the control module.
* = Factory
Setting
ON OR OFF POSITION INDICATOR
TABLE
11
Correction
Table for Burner Orifice Drill Sizes
for Furnaces
Installed
at Altitudes
2000 Feet
and More Above Sea Level
Orifice Twist
Drill Size If
Installed
At
Sea Level
ALTITUDE
2000
36
37
38
39
40
41
42
43
44
45
50
51
52
53
54
55
56
57
58
59
60
3000
ABOVE
4000
5000
SEA LEVEL
6000
7000
8000
37
38
39
40
41
42
42
44
45
46
38
39
40
41
42
42
43
44
45
47
38
39
41
42
42
42
43
44
45
47
39
40
41
42
42
43
43
45
46
47
40
41
42
42
43
43
44
45
47
48
41
42
42
43
43
44
44
46
47
48
41
42
43
43
44
44
45
47
48
49
51
51
52
54
54
55
56
58
59
60
61
51
52
53
54
55
55
56
59
60
61
61
51
52
53
54
55
55
57
59
60
61
62
51
52
53
54
55
56
57
60
61
62
63
52
52
53
54
55
56
57
60
62
62
63
52
53
53
54
55
55
58
61
62
63
64
52
53
54
55
56
56
59
62
63
64
64
,t
GAS COCK
KNOB TURNS
POSITION MARKERS
ARE STATIONARY
FIGURE
LIGHTING
INSTRUCTIONS
WARNING:
DO NOT attempt
10
to manually
light the burner.
Lighting
instructions
appear on each unit. Each installation
must be checked out at the time of initial start up to insure
proper operation of all components.
Check out should include
putting the unit through one complete cycle as outlined below.
Turn on the main electrical supply and set the thermostat
above
the indicated temperature.
The ignitor will automatically
heat,
then the gas valve is energized to permit the flow of gas to the
burners.
After ignition
and flame is established,
the flame
control module monitors the flame and supplies power to the gas
valve until the thermostat
is satisfied.
TO SHUT
OFF
For complete shutdown:
Turn the gas cock knob on the main gas
valve to the "OFF" position (See Figure 10). Disconnect
the
electrical
supply to the unit.
CAUTION:
If this is done during the cold weather
months,
provisions
must
be taken
to prevent
freeze-up
of al!
water
pipes and water
receptacles.
Pub.
No. 18-CD19D7-1
Page 25
INSTALLER
'S GUIDE
Whenever
your house
is to be vacant,
arrange
to have
someone
inspect
your house
for proper
temperature.
This is very important
in below freezing
weather.
If for
any reason
your furnace
should
fail to operate
damage
could result,
such as frozen
water
pipes.
LIMIT
SWITCH
CHECK
OUT
The limit switch is a safety device designed to close the gas valve
should the furnace become overheated.
Since proper operation
of this switch is important
to the safety of the unit, it must be
checked
out on initial
start
up by the installer.
To check for proper operation
of the limit switches,
set the
thermostat
to a temperature
higher than the indicated
temperature
to bring on the gas valve.
Restrict
the airflow by
blocking the return air or by disconnecting
the blower. When
the furnace reaches the maximum outlet temperature
as shown
on the rating plate, the burners must shut off. If they do not shut
off after a reasonable
thne and overheating
is evident, a faulty
limit switch is probable and the limit switch must be replaced.
After checking the operation
of the limit control, be sure to
remove the paper or cardboard
from the return air inlet, or
reconnect the blower.
NOTE
TO INSTALLER
Review the following warnings
with the owner.
Review the
contents of the OWNER'S INFORMATION
MANUAL with the
owner.
AIRFLOW
ADJUSTMENT
Check inlet and outlet air temperatures
to make sure they are
within the ranges specified on the furnace rating nameplate.
If
the airflow needs to be increased
or decreased,
see the wiring
diagram for information
on changing the speed of the blower
motor.
WARNING:
Disconnect
ing the blower
door.
power
to the
unit
before
INDOOR
BLOWER
FLAME
which are permalubrication
is not
TIMING
ROOM AIR
JUSTMENT
HEAT
ANTICIPATOR
AD-
INSTRUCTIONS
TO THE
OWNERS
In the event that electrical,
fuel, or mechanical
failures
occur, the owner
should immediately
turn the gas supply
off at the manual
gas valve, located
in the burner
compartment
(See Figure
9). Also turn off electrical
power
to
the furnace
and contact
the service
agency
designated
by your dealer.
Page 26
COMBUSTION
VENT PRESSURE
OR FLUE
If pressure
against induced draft blower outlet becomes excessive, the pressure
switch will shut off the gas valve until
acceptable
combustion
pressure
is again available.
2. LOSS
OF FLAME
OR GAS SUPPLY
FAILURE
If loss of flame occurs during a heating cycle, when flame is not
present
at the sensor, the control module
will recycle the
ignition sequence after the sensor cools, then if ignition is not
achieved,
it continues
to recycle the ignition
sequence
until
flame is established,
the thermostat
is satisfied,
or power is
interrupted.
3. POWER
FAILURE
If there is a power failure during a heating cycle, the system will
restart
the ignition
sequence
automatically
when power is
restored,
if the thermostat
still calls for heat.
4. INDUCED
DRAFT
BLOWER
FAILURE
If pressure is not sensed by the pressure
switch, it will not allow
the gas valve to open, therefore the unit will not start. If failure
occurs during a running cycle, the pressure switch will cause the
gas valve to close and shut the unit down.
The following
warning
complies
with
State
of California
WARNING:
taw, Proposition
65.
T.isproduct contains
fiberglass wool insulation! Fiberglass dust and ceramic
fibers are believed by the State of California to cause
cancer through inhalation. Glasswool fibers may also
cause respiratory, skin, or eye irritation.
PRECAUTIONARY
MEASURES
•
Avoid breathing
•
Use a NtOSH approved
•
Avoid
contact
fiberglass
dust.
dust/mist
respirator.
with the skin or eyes. Wear
sleeved, loose-fitting
protection.
clothing,
Wash clothes separately
washer thoroughly.
Operations
Set the thermostat
heat anticipator
according
to the current
flow measured,
or the settings found in the notes on the furnace
wiring diagram, (found inside the furnace casing).
DEVICE
CONDITIONS
1. EXCESSIVE
BLOCKAGE
•
THERMOSTAT
ROLL-OUT
ABNORMAL
The control module controls
the indoor blower.
The blower
starts approximately
45 seconds after ignition.
The FAN-OFF
period is approximately
90 seconds from the interruption
of gas
flO-W.
INFORMATION
All models are equipped with a fusible link on the burner cover.
In case of flame roll-out, the link will fail and cause the circuit
to open which shuts off all flow of gas.
remov-
This unit is equipped
with a blower door switch which cuts
power to the blower and gas valve causing shutdown when the
door is removed.
Operation
with the door removed or ajar can
permit the escape of dangerous
fumes.
All panels must be
securely closed at all times for safe operation of the furnace.
NOTE:
Direct drive motors have bearings
nently lubricated
and under normal
use,
recommended.
OPERATING
gloves,
from other
such as sawing,
blowing,
long-
and eye
clothing:
rinse
tear-out,
and
spraying may generate fiber concentrations
requiring
additional respiratory protection. Use the appropriate
NiOSH
approved
respirator
in these situations.
FIRST AID MEASURES
Eye Contact
Flush eyes with water to remove
If symptoms
attention.
Skin
Contact
-
Wash
affected
persist,
seek
dust.
medical
areas gently with soap
and warm water after handling.
Pub.
No. 18-CD19D7-1
INSTALLER
'S GUIDE
FIELD WiRiNG DIAGRAM FOR HEATING ONLY
NOTES
I.
BE
SURE
2. LOW
3.
POWER
VOLTAGE
GROUNDING
4. SET
SUPPLY
OF
AGREES
WIRING
{Z4V.)
EQUIPMENT
THERMOSTAT
HEAT
WITH
TO
MUST
(8
A.
COMPLY
ANTICIPATOR
SAIL
TO 1(5
POWER
EQUIPMENT
NO.
BE
WITH
PER
NOTE
NAMEPLATEISL
HEATING
WITH
W. G. MIN.
LOCAL
UNIT
(OR
HEATING
THERMOSTAT
DIAGRAM.
[--I
I
I
_L':-
INTERG_
POWER
HUMIDIFIER
{OPT IONAL
VOLT
SUPPLY
.
CONTROL
THERMOSTAT
TERMINALS
I
I
)
GROUNDI
RED
OR
#
{MOUNTED
]
LINE
j
IN RETURN
VOLTAGE
SC R E W ?_1
BLACK
HOOKUP
FOR
iOL-._R-_R
200 ELECTRONIC
_L_
_
RELAY
IT__H.LTE
WH
JL
_WHITE
j.__
FURNACE
LILH
_
L TO _15 VOLT
[POWER
SUPPLY
INTER-COMPONENT
/-_
....
ILN,)
T
115V.,
I PH., 60 HZ.,
POWER
SUPPLY
PER
LOCAL
CODES
.#
] ALTERNATE
OR
BLAC_
-
DUCT)
SWITCH
TO
.k,
L,_
I
ELECTRONIC
AIR
CLEANER
(OPTIONAL)
RED
!
JUNCTIONBOX
L__
_"_'"1
AIR
SAIL
)
CODES.
WIRING
SWITCH
HUMIDISTAT
AY28 X119
F'----_"'5-q
4
THERMOSTAT
FAN
SWITCH
MODEL
AIR
....
KIT
WIRING
BEFMO
....
CLEANER
24 V.
"_ FIELD
LINE
V.JWIRING
I_H=_
I
"[.TO
BAYZ4XO433L
LN
24. V.
I15 VOLT
SUPPLY
_LINE
"_ FACTORY
V.JWIRING
{"POWER
ELECTRONIC
AIR
CLEANER
IOPTIONALI
From Dwg. 21B340433
Rev. 0
FIELD WIRING DIAGRAM FOR HEATING/COOLING
(OUTDOOR SECTION WITHOUT TRANSFORMER)
POWER
SUPPLY
NOTES:
1. BE SURE
POWER
2. LOW VOLTAGE
3. GROUNDING
SUPPLY
AGREES
(24V.) WIRING
OF EQUIPMENT
4. SET THERMOSTAT
WITH EQUIPMENT
TO BE NO. 18 A.W.G.
MUST COMPLY
HEAT ANTICIPATOR
WITH
NAMEPLATE(S).
MIN.
r_._?___
LOCAL CODES.
PER UNIT WIRING
I_
DIAGRAM.
5. THE "Y" TERMINAL
FROM THE THERMOSTAT
MUST BE WIRED
THE "Y" TERMINAL OF THE FURNACE CONTROL
FOR PROPER
BLOWER OPERATION
DURING COOLING.
/
Y_-T
I
B
TO
A -NOTE
-----I
_____I
_
El
.... ;1
I
TO
LNEUTRAL
II
_
F
I
j _l I I
ii I
II i
"L_I
----
I
-_
_-_-_-
--
SUPPLY
i
LOW VOLTAGE
AIR CONDITIONING
OUTDOOR
SECTION
WITHOUT
TRANSFORMER
p,.__.
Jl
i
J_
i
_
.....
POWER
T -- -- T
II I
SWITCH
HUMIDISTAT
AYZ8XII9
li--/--7_
115 VOLT
THERMOSTAT
If" ....
.......
SAIL
N5
OTE 4
HEATING-COOLING
i
INTERGRATED
CONTROL
TERM
POWER
i HUMIDIFIER
_
(OPT
GROUND
FURNACE
THERMOSTAT
NKLS,
[i
IONALI
BLACK--_
;!--WHITE
SCREW_
LINE
RED
OR _
I
(MOUNTED
VOLTAGE
IN
SAIL
RETURN
SWITCH
AIR
DUCT)
FURNACE
TO
TO
ELECTRONIC
CLEANER
AIR
L
IOPT IONALI
lib VOLT
JPOWER
OR
_
i ALTERNATE
HOOKUP
[OR
20_0_ ELECTRONIC
FOR
AIR
....
Z_
WHITE
RELAY
ILBAY24xO43J_[
KIT
II
MODEL
CLEANER
[TO
N
WIRING
BEFI40
±"_,
L
JUNCTION
BOX
SUPPLY
INTER-COMPONENT
RED
k
)
Y
ItSV.,
t PH., 60 HZ.,
POWER
SUPPLY
PER
LOCAL
CODES
24
V.
24
V.
1t5
--LINE
FIELD
WIRING
V,.ff
----LINE
VOLT
SUPPLY
"_
"L
v..f"
FACTORY
WIRING
)"POWER
ELECTRONIC
AIR
CLEANER
(OPTIONALI
From Dwg. 21B330432
Pub.
No. 18-CD19D7-1
Rev. 0
Page 27
INSTALLER
'S GUIDE
*UD-C
OUTLINE
(ALL DIMENSIONS
4"
1I_'-5/8
''
S
DRAWING
ARE IN INCHES)
DIAMETER
FLUE
CONNECT
7/8
DIA. K.O.--_
ELECTRICAL
\
AIR
"
19-5/8"
_
----K
7/8
DIA.HOLE
ELECTRICAL
CONNECTION
I/8
C_OLN#E##AITO#, _
'"
2 lj-
\
I t/2
DIA. K.O.
GAS CONNECTIO
I [/2 DIA.
HOLE
GAS CONNECTION
1
(ALTERNATE}_
40"
7
--
32"
_--28 - t/4""
1-5/16"
-!
N OTES :
I. PREFIX
LETTER
MAYBE "A" OR "T"
ON BRAND. SUFFIX
NUMBER
IS "0%
BOTTOM
DEPENDING
3 - i/4"1
MINIMUM
UPFLOW
LEFT
MODEL
*UD040C924H
*UD040C93OH
*UD06OC924H
*UD060C936H
A
14-1/2"
17-1/2"
*UD1O0C948H
*UD1O0C960H
*UD120C954H
21"
* - First
Letter May Be "A" or "T"
C
D
RIGHT
SIDE
SIDE
FLUE
*UD080C924H
*UD080C936H
*UD080C948H
*UD1O0C936H
*UD1O0C945H
*UD1O0C961H
*UD120C960H
*UD140C960H
B
CLEARANCE
9-5/8"
13-1/4"
13"
HORIZONTAL
24-1/2"
16-1/4"
16"
13-1/16"
19-3/4"
19-1/2"
15-5/16"
23-1/4"
23"
MATERIALS
0 IN.
FRONT
3 IN.
0 IN. ( + )
BACK
0 IN.
TOP
1 IN,
6 IN, (#)
CLOSET
(Note
2 IN. ( + )
BACK
3 IN.
FLUE
6 IN. (#)
SIDES
1 IN,
FRONT
3 IN, (Note
BACK
0 IN.
ALCOVE
TOP
(Note
1 IN. ( + )
(Note
1)
2)
FLUE
6 IN. (#)
SIDES
0 IN,
FRONT
18 IN,
# - May be 1"when TYPE B-1 vent pipe is used.
+ - For 14-1/2" cabinets 3" when single watt vent pipe is used.
When the 14-1/2" width models are installedin a horizontal position and a single wall vent pipe is
used, a 6" clearance must be supplied between the vent pipe and combustible flooring.
Notes:
1) Minimum
clearance
to front on UD140 models is 6 inches.
2) May be installed on combustible
- FIRST LETTER
floor when Type Bf vent is used.
MAY BE "A" OR "T"
From Dwg. 21C340781
Page 28
1)
2)
TOP
HORIZONTAL
9-5/8"
TO COMBUSTIBLE
CLOSET
American Standard
Inc.
The Trane Company
Trenton, NJ 08619
Pub.
Rev. 1
No. 18-CD19D7-1
Source Exif Data:
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