Carrier FX4BNB060000AAAA User Manual FAN COIL Manuals And Guides L0411154
CARRIER Air Handler (indoor blower&evap) Manual L0411154 CARRIER Air Handler (indoor blower&evap) Owner's Manual, CARRIER Air Handler (indoor blower&evap) installation guides
User Manual: Carrier FX4BNB060000AAAA FX4BNB060000AAAA CARRIER FAN COIL - Manuals and Guides View the owners manual for your CARRIER FAN COIL #FX4BNB060000AAAA. Home:Heating & Cooling Parts:Carrier Parts:Carrier FAN COIL Manual
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Installation
Instructions
FX4B
Direct Expansion Fan Coil Units
For Puron® Refrigerant
J
J
Ag8023
Fig. 1--Model
NOTE:
_is
Read
symhol
the entire
thstraction
,_ indicates
a change
malmM
before
star_thg
FX4B
the thstallation.
sirice the last issue.
SAFETY CONSIDERATIONS
Improper installer thn, adj ustmeitt, _dtcl ation, service, maintenance,
or use can cause explosion,
fire, electrical shock, or othel conditions
which may
cause personal injury or property damage¸ Consul_ a qLlalified installer, service agency, or yoLlr distributor
or branch for in fonnatthn or assis_nce
_e qtl_lified installer or agency must Llse factory-atlthorized
ki_ or _ccessories
witch modifying
this pl_dLIc t Refer 1o the individual instructions
packaged
with kits or accessories
Follow all safety
these instructions
(NEC)
for special
witch
instaIlthg
codes¸ Wear safety glasses and work gloves¸ Use quenching
cloth for brazing
thoroughly
aod follow all warnings or cautions attached 1o the unit. Consult
available¸
Electrical
Read
Code
requirements
Recognize safety information
This is the safoty-aler_
the polential
for personal iniury
Form:
opel-at ions Have fire extinguisher
local building codes and National
IM-FX4B-02
Cancels:
synthol
IM-FX4B-01
_
When
you see this symbol
Printed in U.SA
on the unit _od in instructions
6-03
Catalog No.
manuals,
63FX481
be alert 1o
POWER ENTRY _
OPTIONS _&
SUPPLIED
SUPPLY DUCT
ENTRY
OPTIONS
0t8,030-048 21dN.
060 24qN FRONT SERVICE
CLEARANCE
UPFLOW/DOWNFLOW
--
UNff
A
018
12IN.
030
036
171N
191N
-
SECONDARYO ,N
UPFLOW/DOWNFLOW
J
PRIMARY DRAIN
FIELD MODIFIED
A
SIDE RETURN
LOCATION FOR
SLOPE COIL
UNITS ONLY
2 _/2_
SECONDARY
DRAIN
FIELD SUPPLIED
RETURN
PLENUM
PRIMARY DRAIN
A00415
Fig. 2--Slope
Coil Unit in Upflow Application
Understand the signal words DANGER, WARNING, CAUTION, and NOTE l'imse words me used with the safety-alm_ symbol DANGER
identifies the most serious hazards which will result in severe personal injury or dealh. WARNING sight fies hazards which could result in personal
m_ury or death. CAUTION is used m identify unsafe practices which would result in miner personal injury ol prcduct and properly damage NOTE
is used to highlight suggestions which will result in enhanced instafafon, reliabitgy, or opemfon
WARNING:
Before installing or servicing unit, always turn off all power to unit. There may be more than t disconnect
switch. Turn off accessory heater power if applicable. Electrical shock can cause personal injury or death.
INTRODUCTION
Model FX4B Fan Coil Units are designed for flexibility and can be used for upfiow, horizontal, or down flow (kit required and manuPactured and
mobile home) applications These units are designed to meet the low air leak requirements currently in e fi'eet Because of this, the units need special
attention in the condensate pan and drain connection area and when brazing tubing These tlnits ale designed specifically for Puron and must be
used only with Pmon air conditioners and heat pinups as shipped "l_ese units are available for applications in systems of 18,000 through 60,000
13tuh nominal cooling capacities Pactory-autholized, feId-instMled electric beater packages are available in 5 through 30 kw See prcduct data
for available accesso W kits
HEATER PACKAGES
I_ds unit may or may not be equipped with an electric heater package For ungs not equipped with l_ack_ry installed heah a factory approved, field
instadled UL listed heater package is available Prom yam equipment supplier See unit rating plate for a list of l_actory approved beaters. Healers
that are not Paetory approved could cause damage which would not be covered under the equipment wm_an_y/f l_n coil contains a factory installed
hemer package, minimum circuit ampac fly (MCA) and maximum fuse/breaker may be different than units with a same size field installed accessory
healer fhe difference is not an er;or and is due to calculation difl'_rence per UL guidelines
INSTALLATION
PROCEDURE
Unpack
f--CHECK
t_ng and move
to final
EQUIPMENT
location.
Remove
car[on
Inspect equipment
for damage prior to instaIlaflen
plate which contains proper installation
information
PROCEDURE
2--MOUNT
laking
care
not to damage
t_nit
File claim with shipping company if shipment is damaged or incomplete
Check rating plate to be sure unit matches job specifications
Locate
unit raflng
UNIT
Unit can stand or lie on floor, or hang
fiom ceiling
or wall.
Allow
space
for wiring,
piping,
and servicing
mdt
IMPORTANT:
When unit is installed over a finished ceiling and/or living mea, building cedes may require a field-supplied
secondary condensate
pan _o be inslalled under the entire unik Some lecaliges
may allow as an alternafve,
file running of a separate, secondary
condensate
line Consult
local cedes fol additional restrictions
or plecautions
2
A.
Upflow
Installation
If return air is to be dueled
and floor
Side return is a field option
B. Downflow
Installation
I11this applicaflon,
through
a floor, sc'l unit on flOOl over opening
on slope
field conversion
coil models
("ut opening
of tile evaporator
and use 1/8- to I/d-in
per dimensions
is required
using accessoly
(See
Pig. 2)
do_snflow
thick fireproof
resilient
A fleld-seppbed
botlom
kit along
with
gasket
between
closure
ari accessory
duct, unit,
is required
base kit
Use fireproof
resilient gasket, 1/8- to l/4-in thick, between duct, unit, and floor.
NOTE:
IZ_ convert ulgts for downflow
epplicaflons,
refer to Installation
lnslruc_ions supplied with kit fol proper installation.
FOl slope _ln coils,
use kit Part No KFADC0201SLP
For A Pan coils use kit Par_ No KFADC0401 ACE Use fireproof resilient gasket, 1/8- m l/4-in thick, between
duct, unit, and floor
NOTE:
Gasket
kit number
KFAHD01OISLP
is also required
for all downflow
appbeations
to maintain
low air leak/low
sweat
performance.
CAUTION: The conversion of the fan coil to downflow requires special procedures for the condensate drains on both
A-coil and Slope units. The vertical drains have an overflow hole between the primary and secondary drain holes. This hole
is plugged for all applications except downflow, but must be used for downflow. During the conversion process, remove the
plastic cap covering the vertical drains only and discard. Remove the plug from the overflow hote and discard. At completion
of the downfiow installation, caulk around the vertical pan fitting to door joint to retain the low air leak performance of the
unit. Failure to follow this CAUTION coutd result in minor personal injury or product and property damage.
C.
Horizontal Installation
Units must not be installed with access panels Pacing up or down All units are factory built for horizontad left installaflon. (See Fig 3 and 8) When
suspending unit from ceiling, dimples in c_sing indicate suitable locagon of screws for mounting metM support straps. (gee Fig 3)
CAUTION: For optimum condensate drainage performance in horizontal installations, unit should be leveled along its
length and width. Failure to follow this CAUTION could result in minor personal injury or product and property damage.
NOTE:
small
Modular
scuttle
units
holes
and
can
be disassemhled
limiting
entrances
and
componems
to installation
moved
sites.
(gee
separately
Pig
to installation
area
fol
reassemhly
fhis
process
accommodates
4)
HORIZONTAL
LEFT
SECONDARY
FIELD _
SUPPLIED
HANGING
STRAp
PRIMARY
_RA_N
• 0_8,030-048
2_- IN
06024= IN
FRONT SERVICE
CLEARANCE
FULL FACE
_F UNIT i
ENTRY
OPTIONS
PRIMARY
DRA_N
SECONDARY
DRA_N
POWER
ENTRY OPTIONS
A00416
HORIZONTAL
RIGHT CONVERSION
Fig. 3---Slope Coil Unit in Horizontal Left Application
OF UNITS WITH SLOPE COILS
NOTE: Gasket kit number KFAHDgI01SLP is required for horizontal slope coil conversion to maintain low air leak/low sweat performance
t. Remove blower and coil access p;meI and fi_flng panel (See Pig. 5)
2. Remove coil mounting screw securing coil assembly 1o right side casing flange.
3
BLOWERBOX
r\
I
-2SCREWS
I
_2SCREWS
CORNER
BRACKET
2SCREWS
COILBOX
Ag5293
Fig.
4--Removal
of Brackets
on Modular
Units
COIL MOUNTING
- SCREW
-SECONDARYDRAEN
Fig. 5--Conversion
3. Remove
for Horizontal
6. Make
COil to casing
8. Align
flange
from kit KFAHD
holes with tubing
sure liquid
HORIZONTAL
and suction
RIGHT
1+ Remove
blower
2. Remove
metal
Using
a Slope
Coil
3. Remove
2 snap-in
screw
is properly
with condensate
previously
seated
pan down
(See
Fig
5.)
removed
on the fitting
door to retain
the low air leak rating
of the unit.
per kit instructions
connections
and condensate
tube grommets
CONVERSION
and coil access
clip securing
coit assembly
using coil mounting
sine tile pan cap in the fitting door
7. Add gaskeI_
Make
Applications
coil assembly
4. L;ly _llt coil unit o11 its right side and reinstall
5. Attach
Right
A03001
OF UNITS
panels.
fitting
clips securing
are in place
(See
pan connections,
Io prevent
WITH
A-COIL
Fig 6)
panel to condensale
A-coil
and reinstall
air leaks and cabinet
in unit
pan
Remove
fitting
panel
access
panels
sweating.
and filling panel
Install
after br_aTing
-AIRSEAL
CONNECTIONS
HORIZONTAL
RIGHT
APPLICATION
SUPPORT
RAiL
BRACKET
DRAIN
pAN
HORIZONTAL
RIGHT
SECONDARy DRAIN
HORIZONTAL RIGHT
A00071
Fig. 6--Conversion
4. Slide coil and pan assembly
5. Remove
horizomal
6. Convert
air-seal
for horizontal
b
Remove
air splgler
(B) Prom coil seal assembly
c
Remove
filler plate
(A) and install
Inslall
Remove
f
Install
from coil by removing
fihm plate {A) as shown
condensate
hose onto
hodzomal
troughs
plastic
Using
A-Coil
rail on leR side of unit and reinslall
on coil suppor_ rail on right side of unit.
air splitter
4 screws
(See Fig
by removing
(B) in place
6)
3 screws
{See Fig. 6
factor3, sldpped
inseL}
of filter plale.
in I_orizontal right applicagon
{C) and install
on opposite
tube sheels
spout
pan on right side of coil assembly.
8. Slide coil assembly
9. Reinstall
to secure
Applications
right.
air-seal
e
assembly
from coil suppor_
Remove
7. Install
into casing.
Be sure coil bracket
2 snap-in clips to correcqy
horizontal
pan
position
on e_h
and secure
comer
Remove
lwo oval fil_ing caps from the left side of the coil door
11.
Remove
insulation
12.
Remove
2 oval coil access
knockouts
on right side of coil access
coil suppor_
raiix
Be sure clip with lmge ofl2set s is used on right side oPmlg
and filfing panel
panel
panel and filling panel
13. Install condensate
pan fitting caps (from Sic't) 10) in lhe light side of gte coil door making
back side of the coil door Make sure no insulation interferes
with seating of the cap.
sine that the cap snaps
Make
access fil_ing panels, aligning holes wgh
fitting panel and vertical condensate
pan
sure liquid
and suction
Manufactured
tube grommets
and Mobile
1. Pan coil unit must be secured
2. Allow
a minimum
3. Recommended
a
Home
mefllod
are in place
Housing
to the s_ructme
of 24" clearance
for typical
connections
Io prevent
and condensate
air leaks and cabinet
all slack,
using field-supplied
wail,
self tapping
and m wall stud using
PROCEDURE
screws
3--AIR
secme
_e
sure Io reinstall
on the
metal
clip
sweating.
hardware
panels
appticagons
and l_osten to wail stud of s_ructure
If fan coil is against
pan collnectiolls
and seats cleanly
Applications
from access
of securing
tubing
If Fan coil is away from walt, attach pipe s_rap to top of Pan coil using No
of l_on coil, remove
b
and reinstall
in unit.
pan engages
into I_oles on leR side of coil access
Reinstall
between
panel plugs
of vertical
coil assembly
lO.
14.
D,
bracket
a
d
Right
out of mlg.
drain pan support
assembly
for Horizontal
Pan coil to wall stud using
5/16-in
l/8-in,
lag screws
10 self tapping
using 5/I6-in.
ddck
screws
lag screws
right-angle
b_ackets
Angle strap down and away from back
Typical
Attach
both sides of l_on coil
brackels
1o fan coil using No
10
{See Fig. 7)
DUCTS
Connect supply-air
duct over the (mtside
of duct used, and seal duct-to-unit
joint
of 3/d-in flanges provided on supply-air
If return-air
flanges ale required, inslall
5
opening
Secrete duct 1o flange, using proper
Paclory-a_thorized
accessory
kit
Pasteners
fol type
4" MAX
SECURE FAN COIL TO STRUCTURE
UNET AWAY FROM WALL
P_PE STRAP
(TYPICAL BOTH SIDES I
OR
_184N THICK ANGLE
MOUNTING BRACKET
(TYPICAL BOTH SIDES)
DOWN FLOW
(KFACB)
_,_ SECURE UNITTO FLOOR
ANGLE BRACKET OR PIPE STRAp
4"MAX
A02003
Fig
covered
with vapor
Units equipped
A.
Acoustical
Metal duct systems
ef vibration
Wbeit elecrdc beatel is instafied, use beal-]esistant material
Ductwerk p_ssing tilrough tlnconditioned
space must be insulated and
barrier
with 20-30kw
Ductwork
7--A-Coil
between ductwork and unit 1o plevent transmission
belween duclwork and unit at discbarge connecgon
use flexible conn_lors
for flexible connector
electric
beaters require a l-in
cleat'.nee
1o combustiMe
materials
for the first 36 in of sopply duct,
Treatment
dlat do not ilave a 90 ° elbew
and 10 fi of main duct to first branch
t_keo fl" m_y require
int elTial acoustical
insulaflon
As an a]telal_flve, fibreus ductwerk
m_y be used if consm_cted
and installed in accord;lnce
with the latest cdflion ef _MACNA
standard on fibreus gl_ss ducts Botil _lcoustical lining and fibrous ductwork
shall comply with N_flona] Fire Protection Association
UL Standard
181 for Class I air duels
PROCEDURE
4--ELECTRICAL
CONNECTIONS
All producls from the fectory utilize _1printed-circuit
b_md (PCB) which
selecflon terminal (SPT), _lod time delay relay (TDR) jumpel
To disable
When a Pactory-approved
connections
lining
COllStrllcgon
as tested by
accessory
control
to be sine none were
loosened
package
h_s been installed,
in transit or installation.
has a low voltage
the TDR feature,
check
circuit pint.five
sever the jumper
pose (5 amp), Pan reeler speed
wire JWI (See Fig q )
all Paclory wiring per unit wiring diagram
If a difl_rent
control
package
is required,
and inspect
tap
l_actory wiring
see unit rating plale.
_&
CAUTION: If a disconnect switch is to be mounted on unit, select a location where dritl or fastener will not contact
electrical or refrigerant components. Failure to follow this CAUTION could result in minor personal injury or product and
property damage,
IBefore proceeding
wflh e fect]icM connections,
make certain
thai supply
plate. See unit wiring label for proper field high- and few-vol_ge
local codes or erdinpa_ces _bat may apply¸ Use copper wire only¸
_e unit must have a sep_trale bmncb electric
the unfl
On units with a faclory
control package.
installed
disconnect
circuit
voltage,
wiring¸
with a field-soppliod
with pull-out
removed,
frequency,
Make
disconnect
service
phase,
all electrical
and ampac fly me as specified
connections
sw flcb located
and maintenance
within
can be safely
in accordance
sight from and readily
performed
on the unit ragng
with the NEC
aod any
accessible
from
o11 only the load side of the
_
WARNING:
Field wires on the line side of the disconnect found in the fan coil unit remain live, even when the pull-out
is removed. Service and maintenance to incoming wiring can not he performed until the main disconnect switch (remote to
the unit) is turned off. Faiture to do so will result in electrical shock causing personal injury or death,
A.
Line
Voltage
Connections
]f unfl contains _lecessory electric
unit wiring harness. (See Elecrdc
For units without
electric
1. Connect
208/23fly
2. Connect
ground
heater,
Heater
remove and discard power
Installagon
festructions
)
plug from Pall coil _nd connect
beat:
power
leads Prom field
wire to unfl ground
lug
disconnect
1o yellow
and black slripped
leads
male plug
Prom healer to female
plug from
FACTORY SH_PPED
HORIZONTAL LEFT
APPMCATEON
CO IL
--
CO_L
SUPPORT
RAiL
DRA_N pAN
SUPPORT
HORIZONTAL
DRA_N PAN
PRIMARY DRAIN
HORIZONTAL LEFT
--
AIR SEAL
SECONDARY DRAIN
HORIZONTAL LEFT
REFRIGERANT
CONNECTIONS
A00072
Fig. 8--A=Coit in Horizontal Left Application
(Factory
Ready)
C8
R10_
R7
F1
z_-
F
A03010
Fig 9--Fan
Coil Printed-Circuit
Board
NOTE: Units installed without eleclric heat should have a field-supplied si_eet metal block-off'plate
air leakage and fom_afion of exterior condensation.
B,
covering the healer opening This will reduce
24v Control System
CONNECTION
TO UNiT
Wire low voltage in accordance with wiring label on the blower. (See Fig. l0 through 15,} Use no. I8 AWG color-coded, insulated (35°C
mimmum) wire to make the low-voltage connecgons between the thermostat, tile trait, and tile outdoor equipment, If the tbermostat is located more
than 10O ft from the _nit (as measured along the low-voltage wire), use No 16 AWG color-ceded, insulated (35°C minimum) wire All wiring
must be NEC ('lass I and must be separated from inconfing power leads
Refer to outdoor unit wiring instructions for any additional wiring procedure recommendagons.
TRANSFORMER
INFORMATION
Transformer is Pactory-wired for 230v operation. For 208v applications,
connect it 1o the 208v terminal (See Fig 15)
disconnec_ the black wire from the 23gv terminal on transformer and
HEATER STAGING
z_
CAUTION: If W2, W3, and E on any 3 stage heater (t8, 20, 24, or 30kw), are individually connected as with outdoor
thermostats
or any other situation, emergency heat relay must be used. This relay is in kit Part No. KNAOTO20tSEC and is
normally used with kit Part No. KHAOT03Ot FST for 2 outdoor thermostat system. Failure to follow this CAUTION could result
in minor personal injury or product and property damage,
7
FAN COIL
(CONTROL)
THERMOSTAT
]
WHT
WHT
W2
BLU
W3
AiR COND
A94058
Fig, 1S--Wiring
Layout Air Conditioning
(Cooling Only)
Unit
FAN CelL
THERMOSTAT
(CONTROL)
E
AIR COND
A94059
Fig. it--Wiring
Layout Air Conditioning
(Cooling and t-Stage Heat)
I]te controls
3-stage
When
ale factoly
use both
2 stages
desired,
for single-stage
me desired,
Fo] 2-stage
operation,
or
use outdo, or thennostal
per d_e thermostat
Strip W2, W3, znd E and reconnect
znytime
kit Par_ No
KHAOT030I
FST, and for
_ed KHAOT0301FST
cut W3 at the W2 wire nut, strip and reconnect
3 stages are used
must be used
Manufactured
operation
02OlSEC
cut the W2 wire nut Off and discard
NOTE:
When
KHAOT0201SEC
--_ C,
circuited
kits Pm_ No. KHAO']
Unit
the
E terminal
is not
tied
kit instruction
per thermostat
to W2,
(See Fig. 13)
kit inslrucgons.
tile emergency
hezl
relay,
(See Fig
part
When
3 stages
are
lb)
of outdoor
kit
Part No
Housing
In M_nuPactured
Housing applications,
ti_e ('ode of Pedel_at Regulations,
ride 24, Chapter XX, Pm_ 3280714
requires th_ supplemented
electric
ile_t be locked out at outdoor temperatures
above 40 dog P, except re1 a ileal primp defrost cycle. Refer 1o Fig 14 re1 typicM low vob_ge wiring
with oudoor thermostat
D.
Ground Connections
WARNING:
According to NEC, ANSI/NFPA 70, and local codes, the cabinet must have an uninterrupted or unbroken
ground to minimize personal injurJ if an electrical fault should occur. The ground may consist of electrical wire or metal
conduit when installed in accordance with existing electrical codes, if conduit connection uses reducing washers, a separate
ground wire must be used. Failure to follow this warning could result in electric shock, fire, or death.
NOTE:
Use UL-listed
accomplished
E,
Minimum
conduit
and conduit
by using grounding
CFM
and
Motor
connector
lugs provided
Speed
Units with or without electric heaters require
th_n the minimum
P_n speed indicated
for connecgng
in control
supply
wire(s)
to unit to obtain
proper
grounding.
Grounding
may also be
box
Selection
a minimum
C'FM
Refer to the unit wiring
label to ensure
that tile Pall speed
selected
is not lower
FAN COIL
{CONTROL)
THERMOSTAT
HEAT PUMP
(CONTROL)
L;_ R
L;_ c
[_
WH]
BLU
W2
W3
[]
L_
N2
Z:q o
L:q y
A94060
Fig. t2--Widng
Layout Heat Pump Unit
and 2-Stage Heat with No Outdoor Thermostat)
(Cooling
FAN COIL
{CONTROL)
--
THERMOSTAT
_
R
HEAT PUMP
(CONTROL1
_
R
_G
c:ko
[]
[]
[_
WH1
W2
BLU
W30DTS
L_
o
y
A_I
(Cooling
Fig. t3--Widng
Layout Heat Pump Unit
and 2-Sfage Heat with 1 Outdoor Thermostat)
THERMOSTAT
HEAT PUMP
(CONTROL)
FAN COiL
(CONTROL)
R
__
c
S
w2
W_
[]
[]
[]
O
A03088
(Cooling
P_n speed selection
rephlce with motor
NOTE:
Fig. 14---Wiring Layout Heat Pump Unit
and 2-Stage heat for Manufactured Housing)
is done _t file Pan relay primed-circuit
b_lmd "l_ change motor speeds, disconnect
l_an lead used o11 relay
speed tap desired. (See Fig 17.) Save insui_gng cap _nd place on motor lead removed
from relay
In low static
applications,
lower
molol
speed
tap should
be used to reduce
9
possibility
of waler
being
blown
off coil
temtinal
(SPT)
and
_AN COIL
{CONTROL}
_HE_MOS_A_
W2
_MERG_NCY
HEAT PUMP
_
W
{CONTROL
I
HEAT REtAY
A94062
Fig. tS--Wiring Layout Neat Pump Unit
(Cooling and 2-Stage heat with 2 Outdoor Thermostats)
BRN
A94067
Fig. 1&--Transformer
Connections
All unils have 3 motor speed taps. lx)w speed (red) is designed for mismatch outdoor unit applications Medium speed {blue) is designed for
straight matched operagons High s_eed (biack) is used with high external static duct s_tems of straight malcbed systems¸
PROCEDURE
5--REFRIGERANT
TUBING
CONNECTION
AND
EVACUATION
Use accessory
tubing package o] field-supplied
tubing of refrigerant
grade Suction tube must be insulated.
Do not
contaminated
tubing because it may plug refrigerant
grade Suction tub_ must be insulated
Do not use damaged, dirty,
because
it may plug refrigerant
flow-control
device
ALWAYS
evacuate
the coil and fieid-suppbed
tubing
before
use damaged,
dirly, or
or contaminated
tubing
opening
outdoor
unit service
Valves
Z_
CAUTION: A brazing shield MUST be used when tubing sets are being brazed to the unit connections to prevent
damage to the unit surface and condensate pan fitting caps. Failure to follow this CAUTION could result in minor personal
injury or product and property damage.
Units have sweat suction and bquid tube connections. Make suction tube connection first.
1. Cut tubing to correct lengg_.
2. Insert tube illtO sweat connection on unit until it bottoms
3. Braze connection using silvm bearing or non-silver beming brazing materials. Do not use solder (materials
Consult local cede requirements
which melt below 800°F)
CAUTION: Wrap a wet cloth around rear of fitting to prevent damage to TXV and factory-made joints. Failure to follow
this CAUTION could result in minor personal injury or product and property damage.
4. Evacuate coil and tubing system 1o 500 microns using deep vacuum me,bed.
_FAN
DEC_
A97529
Fig. t7--Fan
PROCEDURE
{]te FX4B
6--REFRIGERANT
is equipped
PROCEDURE
Coil Relay
FLOW-CONTROL
with a Puron
fXV
7--CONDENSATE
Use outdoor
and Speed
Tap Terminal
DEVICE
units
designed
for Preen
only.
DRAINS
CAUTION: The conversion of the fan coil to downflow requires special procedures for the condensate drains on both
A-colt and Slope units. The vertical drains have an overflow hole between the primary and secondary drain holes. This hole
is plugged for all applications except downflow, but must be used for downflow. During the conversion process, remove the
plastic cap covering the vertical drains only and discard. Remove the plug from the overflow hote and discard. At completion
of the downflow installation, caulk around the vertical pan fitting to door joint to retain the low air leak performance of the
unit. Failure to follow this CAUTION coutd result in minor personal injury or product and property damage.
To connect draths the cap openings
disk. Clean the edge of the opening
the Iew leak rating
of the mlit
Units are equipped
with primary
must be removed
Use a knife to start the opening near the tab and using pliers, poll the tab lo remove the
if necessary
and instail the condensate
tine Finally caulk around the lines where they exit the fitting to retain
and secondary
3/4-in
FPT drain connections¸
For proper
condensale
ithe instailations
see Fig
2, 3, 5, 6, and 8
To prevent property damage and achieve opgnmm drainage performance,
BOTH primary alld secondary drath gnes should be instaiIed arid include
properly-sized
condensate
traps¸ (See Fig. 18 and 20) Factory-approved
condensate
traps are avadabie,
It is recommended
tha_ PVC fittings be
used o11 the piastic condensate
pan Finger_tigthen
plus I_1/2 turns¸ Do no_ over_tigllten
Use pipe dope¸
/_
CAUTION: Shallow, running traps are inadequate
and DO NOT allow proper condensate drainage.
Failure to follow this CAUTION could result in minor personal injury or product and property damage.
NOTE:
When connecting
primary
and second_]y
NOTE:
!f unit is located
condensate
condensate
dr_ain lines,
avoid
blocking
filter access
panel,
thus preventing
filler removal
(See Fig. t9.)
Afler connection,
pdme
both
h'aps.
in or above
a living sp_e
where d_mage
may result
from condensate
overflow,
a field-supplied,
external
condensate
pan sbould be installed underneath
the entire unit, and a secondary
condensate
line {with approprialc
trap) should be run from the unit into the
pan Any condensate
ill this external condensate
pan sfiould be dl ained _o a noticeable
place. As an alternative _o using an external COlldensate pan,
some localities may allow the use of ;1 separate 3/d-in condensalc
line (with apprepriate
trap) to a place where the condensate
will be noticeable
{'he owner of the structure
servicing or water d_mage
must be informed
will occur
Inst;dl traps in the condensate
the condensate
p_n to prevent
area
C_ndensate
Consult
dlain
local
lines should
codes
flows from
the secondary
dlain el external
condensale
lines as close to the coil as possible
(See Fig 20) Make sine that the outlet of e_h
condensale
from overgowing
the dry, in pan Prime all traps, test fol leaks, _nd insulate
be pitched
for eddifional
downward
restrictions
PROCEDURE
8--ACCESSORIES
A.
Air Cleaner
Electronic
th_l witch condensate
{]te Electronic
Air Cleaner m_y be connected
Air Cleaner lileralure
for kit requirements¸
at a minimum
slop of 1 in for ever?,
I0 fi of length
in Pig. 21. {]tis method
requires
pan, the unit requires
trap is below it connection
to
traps if located above a living
or precautions.
to Pan coil as shown
il
a field sopplied
transformer
See Electronic
UNIT
t
2" MIN
t
2" MIN
A03002
Fig, t 8--Recommended
Condensate
Trap
DO NOT USE SHALLOW RUNNING TRAPS!
A03013
Fig. 1g---Insufficient
B.
Condensate
Trap
Humidifier
Connect humidifier and ilumidistal to Fan coil unit as silown in Fig. 22 and Fig. 23 [_te cooling lockout relay is optional (See Fig 24)
12
ACCESS
PANEL
SECONDARY
DRA_N WITH
APPROPRIATE
TRAp REQUIRED
(USE FACTORY KIT OR
FIELD-SUPPLkED
TRAp)
{USE FACTORY KIT OR
F_ELD-SUPPLIED
TRAp OF
SUFFICIENT
DEPTH
STANDARD P=TRAPS ARE
NOT SUFFiCiENT
SEE
FIGURE OF RECOMMENDED
CONDENSATE TRAp)
A03003
Fig* 20--Condensate
PROCEDURE
A.
9--SEQUENCE
Continuous
OF OPERATION
Fan
['hennost_l
Closes R to G G energizes
sec delay befot_ rel_y opens
B,
Cooling
13temlost_l
When
C,
When
D,
on PCB which comple_es
circuit
1o indeor
blower
motor
When
G is de-energized,
there is a 90
Mode
Pump
I_tennost_l
electric
fan relay
energizes Rlo G, R to Y, _nd R to O (beat pump only)
G is de-energized,
Heat
Drain
Heating
with
Auxiliary
which completes
G is de-e_crgized
Electric
is a 90 sec del_y
before
Electric
_an relay
there
circuit
to beater element(s)
is a 90 sec delay befole
Heat or Emergency
(3 energizes fro1 relay on PCB whicb completes circuit 1o indoor blower
motor
opens
Heat
R 1o G, R 1o Y, and R to W G energizes
eriergizes
beat rel_y(s)
lbere
fan relay
on PCB whicb
Wbeit W is de-energized,
compleles
electric
ci]ct_it
to indoor
beat rel_y(s)
blower
open, turning
motor
W energizes
oil" heater elements
_alt rel_y opens
Heat Mode
I_temmstal
closes R to W, W energizes
electric beat relay(s) which compleles
circuit
normally closed contacts on fan relay When W is de-energized,
electric heal relay(s)
13
to beater
opens.
eIementls)
Blower
mo_or is energized
through
CONTROLBOARD
C
C
II
z
208/
3O
TO EAC
FROM MOLEX
PLUG
AND
TRANSFORMER
(IN UNIT)
A03011
Fig. 2t--Wiring
Layout of Electronic Air Cleaner to Fan Coil
222324
_AN COIL
{CONTROL)
_HE_MOS_AT
RED
H_AT PUMP
{CONTROL)
[_o
BaN
V_T
[]
[Z_
BLU
C
2
?
Y
A95294
Fig.
22--Wiring
Layout of Humidifier
to Heat Pump
FAN COIL
THERMOSTAT
(CONTROL)
[_
IWHr
WHT W2
i
BLLJ
W3
BRN
C
AI I_ COND
i
i
[5_
'
,
L _
.
A95295
Fig.
23--Wiring
Layout
of Humidifier
with Electric
Heat
to Fan Coil
SPDT
24VAC COIL
230VAC_5A
DEHUMIDISTAT
(OPENS ON R_NSE)
Fig 24--Latent
TO
t LOW
SPEED
MOTOR
A03012
SPEED
MOTOR
Capacity Controt
START-UP
Refer to outdoor unil [nstal)ation Instructions for system start-up instructions and refrigerant cbarging method details
CAUTION: Never operate unit without a filter Damage to blower motor or coil may result Factory authorized filter kits
must be used when locating the filter inside the unit. For those applications where access to an internal filter is impractical,
a field-supplied filter must be installed in the return duct system. Failure to follow this CAUTtON could result in minor
personal injury or product and property damage.
CARE
Ikl continae
C_nstdt
[]te
yore
your
higb performance
local dealer
_lbibty to properly
dealer
as _o tbe proper
pelform
fol maintenance
and minimize
mair_ten_nee
[]te only
possible
frequency
eqt_ipment
service
MAINTENANCE
Pailure,
of maintenance
oll t|ds equipment
consumer
AND
reqtdres
recommended
it is essential
tb_l periodic
maintenance
be performed
ori Ibis equlpmerit
cer_tlact
ee]lain
mecbanicaI
or required
15
ski){s and tools
if filter replacement
[f you do not possess
or cleaning
on a monthly
these, contac_
basis
PIJRON® QUICK
FOR INSTALLERS
REFERENCE
GUIDE
AND TECHNICIANS
•
Puron refrigerant operates
at 50-70 pel_ent higher pressures
thari R-22.
replm:ement
components
ale designed _o operale x_sith Puron
•
Pmon
refrigerant
Recovery
Pmon
systems
Manifold
service
should
with
should
pumps
Do not use liquid-line
moisture
POE oils may cause
d_mage
Wrap all fifier dliers
and service
A liquid-line
working
in liquid
plastics
valves
fil_er drier ix required
low-side
in the manifold
hose
retard
from oil
wilh
on every
pressures
less than g00 psig
line.
Do not expose
Io certain
wgh 52g psig
device
HFC refrigerant
with rated
filter drier
Bwq00
lype melering
with POE oils
moisture
rapidly
or DO'I
Use a commel_ial
and 200 psig low-side
to detect
fiber driers
Do not ins_atl a suction-line
POE oils absorb
and
rating
ix only compatible
will not remove
be 400 psig, D(_F 4BA400
liquid refrigeront.
pressure
be designed
as other HFC's,
Vacuum
rating must
widl
be 750 psig high-side
750 psig service
Leak delectors
equipment
are rose colored.
pressure
be charged
sels should
Use hoses
Pmon,
cylinders
cylinder
Be sure that servicing
oil to ammsphere
and roofing
wet cloth
malelials
when brazing
umt.
Do not t_se an R-22 TXV
If indoor
unit is equipped
Never
open
When
system
syslem
must be opened
Do not vent Pumn
all warnings_
© 2003 CAC/BDP
TXV,
while
it must be changed
1o a Pmon
TXV
it is t_nder a vacuum
for service,
break
vacuum
with dry nitrogen
and replace
fifier dliers
into gte almosphere.
Do not use capillary
Observe
wilh an R-22
_o atmosphere
tube indoor
cautions
coils
and boht
7310 W Mo_ns St, In(fianapolis,
lext.
iN 46231
[mf×4b02
16
Book/Tab:
1/4,3d12e
Catalog
No
63FX-4B1
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