National Comfort Products Comfort Pack User manual

National Comfort Products
539 Dunksferry Road • Bensalem, PA 19020 • [phone] • 1-800-523-7138 • Fax: [phone]
COMFORT PACK
PACKAGED THRU-THE-WALL
AIR CONDITIONER WITH GAS HEAT
INSTALLATION AND MAINTENANCE INSTRUCTIONS
14299541 10/08

except wood flooring. In order to be able to remove the
chassis, 29” of open area must be left unobstructed in front of
the access panels. The 3/4” O.D. drain pan connection should
be connected to the building drain using the flexible tubing
included and a trap.
Gas piping external to the unit must include: a manual
shutoff valve with 1/8” NPT plugged tapping (for test
gauge connection), drip leg and ground union fitting.
If the supply air from the unit is ducted to space(s) outside
the space containing the unit, the return air must also be
ducted from outside the space containing the unit and
sealed to the unit cabinet return air opening.
The unit should be provided with support inside the building in
the area of the return air opening. The support should be high
enough to allow for return air provisions to the unit. To reduce
the possible transmission of sound and vibration, a resilient
material such as rubber or cork should be installed between
the support and the base of the unit. All spaces around the top,
sides and bottom of the exterior grille area should be caulked
and sealed to the wall, making sure that the openings for
drainage in the bottom edge are not blocked.
If the optional wall sleeve is used, caulk the spaces between the
sleeve and the wall. Completely fill the clearance on all sides
between the unit and the wall sleeve with a polyurethane foam
sealant (follow manufacturer’s suggested application manual).
Provide the unit with support inside the building in the area of
the return air opening. Slide the unit into the wall sleeve and
fasten the unit to the sleeve with the five screws provided with
the sleeve.
NOTE: For ease of installation, install the cabinet into the
wall sleeve first without the cooling chassis. Then slide
cooling chassis in after cabinet is in place.
NOTE: These installation and maintenance instructions
should be left with the unit for future reference.
INSTALLATION:
This unit must be installed in accordance with all appli-
cable codes. This unit is not to be used for temporary
heating of buildings or structures under construction.
This unit shipped with the cooling chassis installed in the
cabinet. Prior to installing the unit in the wall opening, the
shipping bolts located at the bottom on both sides of the cabinet
must be removed to allow for removal of the cooling chassis.
1/4” hole plugs provided with the unit should be installed in the
holes to prevent air leakage.
Shipping bolts are located on both sides below this sticker:
THE SHIPPING BOLTS MUST BE REMOVED PRIOR
TO INSTALLATION OF THE CABINET TO PERMIT
REMOVAL OF THE CHASSIS. INSTALL THE HOLE
PLUGS PROVIDED.
14299588
This unit is designed and approved for through-the-wall
installation only. The unit must be installed a minimum of
8” above finish floor. If this unit is installed in a residential
garage, it must be installed so that the ignition source
and burners are located not less than 18 inches (457 mm)
above the floor, and it must be located or protected to
avoid physical damage by vehicles. The entire unit must
not be installed outside. The grille side of the unit should
extend 3/4” beyond the exterior wall to allow moisture that may
enter the outdoor section to drain. The pitch of the internal drain
pans toward the outside will assure proper drainage when the
cabinet is installed level. Masonry walls must have a lintel to
support the wall.
The grille side must be kept free of any obstructions that will
reduce or alter the air flow pattern. The unit must be installed
at least 4 feet (1.22 m) from electric meters, gas meters,
regulators, and relief equipment. The vent of the unit is
located at the front grille. Distances from adjacent public
walkways, adjacent buildings, openable windows, and
building openings must be consistent with the National
Fuel Gas Code ANSI Z223.1 and/or CAN/CGA-B149 instal-
lation codes, as well as local codes.
If an optional architectural grille is to be used on standard units,
the stamped and louvered grille provided must be removed.
Consult the factory prior to ordering product(s) that require an
optional architectural grille.
The interior of the unit may be installed with zero clearances to
adjacent combustible surfaces. The unit shall not be installed
directly on carpeting, tile or other combustible material,
National Comfort Products
539 Dunksferry Road • Bensalem, PA 19020 • [phone] • 1-800-523-7138 • Fax: [phone]
General
Installation
1
COMFORT PACK PACKAGED THROUGH-THE-WALL AIR CONDITIONER WITH GAS HEAT
INSTALLATION AND MAINTENANCE INSTRUCTIONS

Comfort Pack Dimension Drawing
2
15 13/16"
11 1/16"
1/2" GAS PIPE
1 3/4"
29 1/2"
28"
7 11/16"
26 1/4"
1 3/4"
2 3/8"
1 1/8"
43"
20 1/16"
3
3
21 15/16
15/16
22 5/8
5 5/16

The 3/4” I.D. flexible tubing included should be connected to the
Comfort Pack drain connection so that it can easily be discon-
nected if the cooling chassis must be removed. A trap at least
2” deep should be provided close to the drain pan. The tubing
should not be higher than the bottom of the unit drain pan at
any point to assure proper drainage and allow chassis removal.
The drain line should pitch downward at least 1” per 10 ft. to an
open building drain trap.
The trap and 3” piece of clear flexible1. 1/2” ID tubing
are shipped loose to prevent damage. They should be
installed after the Comfort-Pack unit is installed and the
return air connection completed.
The trap must be primed (filled with water) for proper2.
operation of the secondary drain system. This may be
done prior to installation of the trap or after.
Position the trap as shown below and slide the 3” piece3.
of clear flexible about 1 1/2” onto the top end of the trap.
Install the other end of the trap through the grommet
in the slide-out chassis under the indoor coil drain pan.
Slide the top of the flexible tube on the trap onto the
bottom of the 1/2” OD secondary drain connection and
push the top of the trap up. The trap should be positioned
so that there is only a small gap between the top of the
trap and the bottom of the secondary drain connection.
To avoid damage whenever the slide-out chassis has to4.
be removed from the cabinet, remove the secondary drain
trap before sliding the chassis out. After the chassis is
reinstalled in the cabinet, prime the trap with water before
reinstalling it.
All wiring must be installed in accordance with applicable
codes.
The unit is factory wired for 230/1/60 power. For 208/1/60
power systems, the wiring to the primary side of the control
transformer should be changed from the 240-volt connection
to the 208-volt connection to provide proper operation of the
control system.
The operating voltage of the unit is from 197 to 253 volts.
Operating the equipment outside of these limits will void the
warranty.
Field wiring between the unit and the wall thermostat (by others)
may be low voltage for Class 2 systems. The location of the wall
thermostat should be 4 to 5 feet above the floor and carefully
selected so that the thermostat senses the temperature of the
largest conditioned area, without being influenced by drafts, sun
exposure or outside temperature.
Air Filter
The 16” x 25” x 1” filter on the cooling chassis must be
maintained regularly to assure that the unit provides optimal
performance and energy efficiency. The intervals between
replacing depends entirely on the cleanliness of the return air
to the unit and the time that the indoor blower operates. The
air filter is accessible by removing the lower access panel. The
filter should be inspected and replaced as needed and is not
washable. Substituting the air filter with media other than the
type provided with the unit is not recommended, since other
materials may cause additional static pressure, which could
reduce the air delivery of the unit. The unit should never be
operated without the air filter and access panels in place.
Cooling Chassis
The cooling chassis contains all items related to the cooling
functions of the unit, and also contains the indoor blower and
motor for the heating function. For extensive servicing, qualified
personnel may choose to remove the cooling chassis from the
unit and take it to a work area. Spare chassis are recommended
so that extensive servicing can be performed outside the living
space. This will prevent introducing dirt or doing damage in the
living area, and could help to eliminate significant disruption of
the air conditioning and heating functions in the living areas.
The indoor blower motor and the outdoor fan motor have
permanently lubricated bearings and do not require routine
service. The refrigeration system is sealed and factory charged
with Refrigerant 22 so that routine maintenance is not required.
Cleaning of the outdoor coil, indoor coil, drain pan, and inside
the bottom of the chassis are recommended at least once a
year, and more often if the equipment is operated in a dusty
or hostile environment. The electrical controls do not require
routine service.
Power to the unit should always be turned off before
performing service or removing the cooling chassis from
the unit. One power connector and one control circuit connector
are provided for easy disconnecting and re-connecting of the
3
Electrical
Controls
Maintenance
Drain Connection
Drain Pan
Pitch Downward 1” per 10’
3/4” O.D. Drain Connection
Highest point must not be above
bottom of drain pan
3/4” I.D. Flexible Tubing Included
Dotted line represents components provided and installed by others
2” min.
Optional Secondary Drain Trap
Install Instructions
Secondary Drain Connection Drain Pan
1/2” I.D. Tubing
Grommet
Chassis Base
Trap

wires between the cooling chassis and cabinet. The controls
enclosure cover must be removed to allow access to the screws
holding the indoor blower cover plate to the cooling chassis and
cabinet. After reinstalling the cooling chassis, the indoor
blower cover plate and controls enclosure cover must be
reinstalled.
The cabinet includes a gas furnace with integral flue duct,
direct spark ignition, safety controls, and operating controls.
Specific information on the installation, operation, service
and maintenance of the gas furnace are included in the Gas
Furnace Instruction and Gas Furnace User’s Information
manuals included with the unit. The installation of the unit and
gas piping must be in accordance with local codes.
The Comfort Pack is designed to be used with residential
single-stage cooling and single-stage heating wall thermo-
stats with automatic or manual mode changeover. Automatic
changeover thermostats must include a deadband to prevent
cycling between cooling and heating modes. Single-pole,
single-throw thermostats are not suitable for use with
Comfort Pack. The unit incorporates a 90-second time delay
to keep the indoor blower operating after cooling is satisfied
to reduce operating costs. The unit also contains controls to
automatically adjust the indoor blower motor speed for cooling
and heating modes. The lower access panel has an interlock
switch to prevent unit operation when the panel is not in place.
Operation
Gas Heat
12 = Nominal 12,000 B/hr Cooling
18 = Nominal 18,000 B/hr Cooling
24 = Nominal 24,000 B/hr Cooling
30 = Nominal 30,000 B/hr Cooling
38 = 38 Mbh INPUT GAS FURNACE
51 = 51 Mbh INPUT GAS FURNACE
64 = 64 Mbh INPUT GAS FURNACE
G = GAS FURNACE
CP = COMFORT PACK
SERIES
CP
G
18
38 --
-B
P
OPTIONS
D Secondary Drain Pan
Factory Installed Only
P Stamped Louver
and Grille Removed
T Triac Smart Fan Motor
Speed Control
4

National Comfort Products
539 Dunksferry Road • Bensalem, PA 19020 • [phone] • 1-800-523-7138 • Fax: [phone]
CABINET
ITEM DESCRIPTION PART NO. MODEL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Top Panel
Top Mount Angle
Upper Louvered Panel
Lower Intake Grille
Right Side Panel
Left Side Panel
Bottom Panel
Rail (2 req’d)
Cabinet Air Divider
Cabinet Air Seal
Indoor Blower Cover
Upper Access Panel
Furnace Access Door
Lower Access Panel
Side Seal Retainer (2 req’d)
Front Air Bafe
Rear Air Bafe
Deector 38 Mbh (2 req’d)
Deector 51 Mbh (2 req’d)
Mfg. Bracket - Switch
Side Seal (4.33’ req’d)
Bottom Seal (2.13’ req’d)
Air Seal Gasket (3.50’ req’d)
Interlock Switch
User’s Information Manual
Instruction Manual
Access Hinge Door (2 req’d)
Gas Furnace 38 Mbh1
Gas Furnace 51 Mbh1
Gas Furnace 64 Mbh1
Power Connection Plug2
Power Connection Pin (M)3(3 req’d)
Control Connection Plug2
Control Connection Pin (M)3(5 req’d)
14256100
14256101
14256102
14256103
14256104
14256105
14256106
14256114
14256110
14256119
14256120
14256121
14256122
14256123
14256125
14256141
14256142
14256154
14256155
14256156
14231012
14231013
14231014
14265025
14299573
14299575
14295022
14208309
14299308
14299303
14230026
14230027
14230024
14230025
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
38 Mbh
51 Mbh
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
38 Mbh
51 Mbh
64 Mbh
ALL
ALL
ALL
ALL
CHASSIS
1
2
3
4
5
6
7
Base
Base
Air Divider
Outdoor Coil Mount Shroud
Indoor Coil Cover
Indoor Coil Drain Pan
Controls Cover
14256108A
14256108
14256109
14256113
14256117
14256118
14256143
12
18, 24, 30
ALL
ALL
ALL
ALL
ALL
REPLACEMENT PARTS GUIDE
CHASSIS
ITEM DESCRIPTION PART NO. MODEL
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Air Filter 16” x 25” x 1”
Indoor Coil - 2 Rows
Indoor Coil - 3 Rows
Indoor Coil - 4 Rows
Outdoor Coil - 2 Rows
Outdoor Coil - 3 Rows
Outdoor Coil - 4 Rows
Compressor 2P17SR236A-1A
Compressor H21J17BABCA
Compressor H21J22BABCA
Compressor H21J27BABCA
Indoor Blower Assembly
Outdoor Fan
Dual Capacitor 30 + 5/370
Dual Capacitor 35 + 5/370
Dual Capacitor 40 + 5/370
Single Capacitor 7.5/370
Compressor Harness w/Plug
Contactor
Transformer 208/240-24
3-Pole Terminal Board
3-Speed Indoor Motor
Outdoor Fan Motor 8505
Outdoor Fan Motor 1075
Outdoor Motor Mount
Drier & Cap
Drier w/Cap. Tube 4- 0.49” x 48”
Drier w/Cap. Tube 5- 0.59” x 59”
TXV Bive - 3-CP100
3/4” ID Drain Tube x 17”
Power Connection Receptacle
Power Connection Pin (F) (3 req’d)
Control Connection Receptacle
Control Connection Pin (F) (5 req’d)
Mufer
Drier
Smart Fan Speed Control
Triac Control
14232002
14208305
14208301
14208304
14208307
14208302
14208306
14210031
14210095
14210097
14210098
14214026
14214027
14225376
14225375
14225372
14225383
14230015
14262082
14262087
14263061
14270043
14270045
14270044
14270101
14275629
14275648
14275641
14275651
14275616
14693036
14693038
14693032
14693035
14275639
14275616
14262059
14262062
ALL
12, 18
24
30
12, 18
24
30
12
18
24
30
ALL
ALL
12, 24
18
30
ALL
ALL
ALL
ALL
ALL
ALL
12, 18
24 & 30
ALL
12
18
24
30
ALL
ALL
ALL
ALL
ALL
18, 24, 30
30
12
12
To assure accurancy in providing the correct parts, please provide the unit model designation and serial no. with the parts order.
The model designation breakdown is shown below:
Replacement parts should be ordered from:
1Complete heat exchangers, gas valve, vent motor, and all wiring
2Cabinet side
3Chassis side
* REFER TO THE “GAS FURNACE INSTRUCTIONS” FOR
INDIVIDUAL PARTS FOR THE GAS FURNACE.
5

National Comfort Products
539 Dunksferry Road • Bensalem, PA 19020 • [phone] • 1-800-523-7138 • Fax: [phone]
LIMITED EXTENDED PROTECTION WARRANTY
FOR
NATIONAL COMFORT PRODUCTS (NCP) BENSALEM, PA
COMFORT PACK UNITS
This NCP product is warranted to be free from all manufacturing defects, material or workmanship, for a period of ve years from
the date of installation (receipt required), whether or not actual use begins on this date, or ve years from the date of manufacture,
if the date of installation cannot be veried. Immediate notice to NCP will (A) provide a new or remanufactured part to replace the
defective part, without charge for the part itself, or (B) provide a replacement unit.
National Comfort Products will not be responsible for: local transportation, removing, related service, labor, diagnosis calls, refriger-
ant, costs incurred for returning defective parts, damage or repairs required due to faulty installation or improper application by
others, damage as a result of re, wind, oods, lightning, accidents, or corrosive atmosphere.
EXTENDED 2ND THRU 5TH YEAR COMPRESSOR WARRANTY
If the compressor should fail because of a manufacturing defect, is in the original installation, has been operated under normal con-
ditions, and is in the 2nd to 5th year following the above determined date, NCP will provide, at its option, a new or remanufactured
replacement compressor.
EXTENDED 2ND THRU 10TH YEAR HEAT EXCHANGER WARRANTY
If the heat exchanger of the gas furnace should fail because of a manufacturing defect, is in the original installation, has been oper-
ated under normal conditions, and is in the 2nd to 10th year following the above determined date, NCP will provide, at its option, a
new or remanufactured replacement heat exchanger.
Replacement parts are warranted for the remainder of the original product warranty, or for one year, whichever is longer. NCP may
require that defective parts be returned to verify and identify the cause of the defect.
LIMITATION OF WARRANTIES — ALL IMPLIED WARRANTIES (INCLUDING IMPLIED WARRANTIES
OF MERCHANTABILITY) ARE HEREBY LIMITED IN DURATION TO THE PERIOD FOR WHICH EACH
LIMITED WARRANTY IS GIVEN. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN
IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU. THE EX-
PRESSED WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND MAY NOT BE ALTERED,
ENLARGED, OR CHANGED BY ANY DISTRIBUTOR, DEALER, OR OTHER PERSON WHATSOEVER.
MATERIAL IS INSPECTED AT THE FACTORY AND RELEASED TO TRANSPORTATION AGENCY IN
GOOD CONDITION. WHEN RECEIVED, VISUAL INSPECTION MUST BE MADE IMMEDIATELY. AP-
PARENT SHIPPING DAMAGE SHOULD BE NOTED ON THE DELIVERY RECEIPT AND THE MATERI-
AL INSPECTED IN THE PRESENCE OF THE CARRIER’S REPRESENTATIVE. IF DAMAGE IS FOUND
A CLAIM MUST BE FILED WITH THE CARRIER IMMEDIATELY.
FREIGHT DAMAGE IS NOT COVERED UNDER THIS WARRANTY.
WARNING: NO WARRANTY ON NEW UNITS INSTALLED BEHIND BRICK FACADES. IN YEARS PAST,
IT WAS COMMON PRACTICE TO ADD A BRICK PATTERN FACADE (PIGEON HOLES) IN FRONT OF
THE THRU-THE-WALL UNIT TO CHANGE THE EXTERIOR APPEARANCE OF THE BUILDING. ALL
OBSTACLES ADDED TO IMPEDE AIR FLOW OF THE CONDENSING UNIT WILL DECREASE PER-
FORMANCE AND CAUSE PREMATURE EQUIPMENT FAILURE AND VOID ALL WARRANTIES. CON-
SULT FACTORY WITH ANY QUESTIONS.
This warranty gives you specic legal rights. You may also have rights which vary from state to state.
NATIONAL COMFORT PRODUCTS, BENSALEM, PENNSYLVANIA
NOTE: All warranty parts and paper work must be submitted no later than 60 days after failure.
Warranty requests submitted after 60 days of failure will not be processed.
6

Cabinet Wiring Schematic/Gas Heat
7
REFER TO CHASSIS WIRING SCHEMATIC FOR CONTINUATION



REFER TO CABINET WIRING SCHEMATIC FOR CONTINUATION
Chassis Wiring Schematic/Gas Heat
8

9
Legend
DSI INTEGRATED CONTROL MODULE
CONTROL
STATUS GREEN LED
STEADY ON
FAST FLASH
1 FLASH
2 FLASH
3 FLASH
4 FLASH
STEADY OFF
Normal operation, no call for heat
Normal operation, call for heat
In lockout from failed ignition or ame loss
Pressure switch does not close within 30 seconds
Limit switch or rollout switch open
Limit switch is closed before venter is energized
Internal control fault or no power
FLAME
STATUS YELLOW LED
STEADY ON
SLOW FLASH
FAST FLASH
Flame sensed
Weak ame (current below 1.0 microamps = +/-50%)
Undesired ame (valve open and no call for heat)
CABINET COMPONENTS
C1 thru C6
F
G
SW
MV
P1 thru P3
Control Wiring Connector (Plug)
Fuse
Ground Connector
Panel Interlock Switch (open when access panel is removed)
Gas Valve
Power Wiring Connector (Plug)
COOLING CHASSIS COMPONENTS
2A
2B
2C
3C
3J
4A
C1 thru C6
P1 thru P3
TR
OL
Contactor/Compressor & Condenser Fan Motor
Indoor Blower Motor
Capacitor - Indoor Blower Motor
Condenser Fan Motor
Compressor
Dual Capacitor/Compressor & Condenser Fan Motor
Control Wiring Connector (Receptacle)
Power Wiring Connector (Receptacle)
Transformer
Compressor Overload (Model 12 only)
OPERATION SEQUENCE
SET THERMOSTAT AT LOWEST SETTING.1.
TURN ON MANUAL GAS VALVE.2.
TURN ON POWER TO UNIT.3.
SET THERMOSTAT AT DESIRED SETTING.4.
THERMOSTAT CALLS FOR HEAT, ENERGIZING THE VENTER MOTOR.5.
VENTER PRESSURE SWITCH CLOSES, FIRING UNIT.6.
BURNER FLAME IS SENSED, AND IN 30 SECONDS THE FAN MOTOR IS ENERGIZED.7.
IF THE FLAME IS EXTINGUISHED DURING MAIN BURNER OPERATION, THE INTEGRATED CONTROL SYSTEM CLOSES THE MAIN VALVE AND MUST BE RE-8.
SET BY INTERRUPTING POWER TO THE CONTROL CIRCUIT (SEE LIGHTING INSTRUCTIONS).
NOTES
THE FOLLOWING CONTROL IS A FIELD-INSTALLED OPTION: THERMOSTAT.1.
DOTTED WIRING INSTALLED BY OTHERS.2.
CAUTION: IF ANY OF THE ORIGINAL WIRING AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL3.
HAVING A TEMPERATURE RATING OF AT LEAST 105°C EXCEPT FOR SENSOR LEAD WIRE AND LIMIT WIRING WHICH MUST BE 150°C.
USE 18 GAUGE WIRE FOR ALL LOW VOLTAGE WIRING ON THE UNIT OR FOLLOW CHART ABOVE.4.
LINE AND FAN MOTOR BRANCH WIRE SIZES SHOULD BE OF A SIZE TO PREVENT VOLTAGE DROPS BEYOND 5% OF SUPPLY LINE VOLTAGE.5.
GROUND WIRE IS USED ONLY ON MODEL 64 UNITS.6.
FAN OFF DELAY
TIME SWITCH
1 2
90 OFF ON
120 OFF OFF
160 ON OFF
180 ON ON
FIELD CONTROL WIRING
TOTAL WIRE
LENGTH
DISTANCE
FROM UNIT
TO CONTROL
MIN. RECOMMENDED
WIRE GAUGE
150’
250’
350’
75’
125’
175’
#18 GAUGE WIRE
#16 GAUGE WIRE
#14 GAUGE WIRE
TEST
Y
FLAME
LED
G
OK
LED

DSI Integrated Controls Wiring & Codes
10
TOTAL WIRE
LENGTH
150’
250’
350’
DISTANCE FROM
UNIT TO CONTROL
75’
125’
175’
MIN. RECOMMENDED
WIRE GAUGE
#18 GAUGE WIRE
#16 GAUGE WIRE
#14 GAUGE WIRE
OPERATION SEQUENCE
SET THERMOSTAT AT LOWEST SETTING.1.
TURN ON MANUAL GAS VALVE.2.
TURN ON POWER TO UNIT.3.
SET THERMOSTAT AT DESIRED SETTING.4.
THERMOSTAT CALLS FOR HEAT, ENERGIZING THE VENTER MOTOR.5.
VENTER PRESSURE SWITCH CLOSES, FIRING UNIT.6.
BURNER FLAME IS SENSED, AND IN 30 SECONDS THE FAN MOTOR IS ENERGIZED.7.
IF THE FLAME IS EXTINGUISHED DURING MAIN BURNER OPERATION, THE INTEGRATED CONTROL SYSTEM CLOSES THE MAIN VALVE AND MUST BE RE-8.
SET BY INTERRUPTING POWER TO THE CONTROL CIRCUIT (SEE LIGHTING INSTRUCTIONS).
NOTES
THE FOLLOWING CONTROL IS A FIELD-INSTALLED OPTION: THERMOSTAT.1.
DOTTED WIRING INSTALLED BY OTHERS.2.
CAUTION: IF ANY OF THE ORIGINAL WIRING AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL3.
HAVING A TEMPERATURE RATING OF AT LEAST 105°C EXCEPT FOR SENSOR LEAD WIRE AND LIMIT WIRING WHICH MUST BE 150°C.
USE 18 GAUGE WIRE FOR ALL LOW VOLTAGE WIRING ON THE UNIT OR FOLLOW CHART ABOVE.4.
LINE AND FAN MOTOR BRANCH WIRE SIZES SHOULD BE OF A SIZE TO PREVENT VOLTAGE DROPS BEYOND 5% OF SUPPLY LINE VOLTAGE.5.
GROUND WIRE IS USED ONLY ON MODEL 64 UNITS.6.

COMFORT PACK - Packaged Thru-the-Wall A/C with Gas Heat Installation Instructions - Rev 10/08