Rheem RQMP-A030JK, RQMP-A024JK, RQMP-A036CK, RQMP-A036JK, RQMP-A042CK Installation Instructions Manual
...
INSTALLATION INSTRUCTIONS
RECOGNIZE THIS SYMBOL AS AN INDICATION OF IMPORT TION!
!
DO NOT DESTROY THIS MANUAL
PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE BY A SERVICEMAN
WARNING
!
ANT SAFETY INFORMA
THESE INSTRUCTIONS ARE INTENDED AS AN AID TO
QUALIFIED, LICENSED SERVICE PERSONNEL FOR PROPER
INSTALLAT I ON, ADJUSTMENT AND OPERATION OF THIS
UNIT. READ THESE INSTRUCTIONS THOROUGHLY BEFORE
AT TEMPTING INSTALLATION OR OPERATION. FAI LURE TO
FOLLOW THESE INSTRUCTIONS MAY RESULT IN IMPROPER
INSTALLAT I ON, ADJUSTMENT, SERVICE OR MAINTENANCE
POSSIBLY RESULTING IN FIRE, ELECTRICAL SHOCK,
PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
PACKAGE HEAT PUMPS FEATURING EARTHFRIENDLY R-410A REFRIGERANT
RQPM 14 SEER SERIES – (2 - 5 TONS)
RQNM 13 SEER SERIES – (2 - 5 TONS)
[ ] INDICATES METRIC CONVERSION
(14 SEER
MODELS ONLY)
SUPERSEDES 92-20522-47-03
92-20522-47-04
TABLE OF CONTENTS
I. Safety Information .................................................................................................3
I. Introduction............................................................................................................4
I
III. Checking Product Received ..................................................................................7
IV. Equipment Protection ............................................................................................7
V. Specifications ........................................................................................................7
VI. Installation .............................................................................................................7
A. General .............................................................................................................7
1. Pre-Installation Check Points ........................................................................7
2. Location.........................................................................................................7
B. Outside Slab Installation ...................................................................................8
. Clearances ........................................................................................................8
C
D. Rooftop Installation ...........................................................................................9
VII. Ductwork................................................................................................................9
VIII. Filters.....................................................................................................................9
IX. Condensate Drain, Indoor Coil ..............................................................................9
X. Condensate Drain, Outdoor Coil .........................................................................10
XI. Electrical Wiring...................................................................................................10
A. Power Wiring ...................................................................................................10
B. Electric Heater Kit Instructions ........................................................................10
C. Control Wiring .................................................................................................11
D. Internal Wiring .................................................................................................11
E. Grounding .......................................................................................................11
F. Thermostat ......................................................................................................12
XII. Indoor Air Flow Data............................................................................................12
XIII. Pre-Start Check ...................................................................................................12
XIV. Startup .................................................................................................................12
XV. Operation.............................................................................................................13
XVI. Auxiliary Heat ......................................................................................................13
XVII. Demand Defrost Control......................................................................................14
XVIII. General Data ..................................................................................................15-20
XIX. Miscellaneous
Electrical and Physical Data...........................................................................21-22
Airflow Performance .......................................................................................23-26
Electric Heater Kit...........................................................................................27-30
Wiring Diagram...............................................................................................31-34
Charge Charts ................................................................................................35-40
Installation instructions are updated on a regular basis. This is done as product
changes occur or if new information becomes available. In this publication, an arrow ()
denotes changes from the previous edition or additional new material.
2
I. SAFETY INFORMATION
WARNING
!
THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED, LICENSED
SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT AND
OPERATION OF THIS UNIT. READ THESE INSTRUCTIONS THOROUGHLY
BEFORE ATTEMPTING INSTALLATION OR OPERATION. FAILURE TO FOLLOW
THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION, ADJUSTMENT, SERIVICE OR MAINTENANCE POSSIBLY RESULTING IN FIRE, ELECTRICAL SHOCK, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
WARNING
!
PROPOSITION 65: THIS APPLIANCE CONTAINS FIBERGLASS INSULATION.
RESPIRABLE PARTICLES OF FIBERGLASS ARE KNOWN TO THE STATE OF
CALIFORNIA TO CAUSE CANCER.
WARNING
!
THE MANUFACTURER’S WARRANTY DOES NOT COVER ANY DAMAGE OR
DEFECT TO THE HEAT PUMP CAUSED BY THE ATTACHMENT OR USE OF ANY
COMPONENTS, ACCESSORIES OR DEVICES (OTHER THAN THOSE AUTHORIZED BY THE MANUFACTURER) INTO, ONTO OR IN CONJUNCTION WITH THE
HEAT PUMP. YOU SHOULD BE AWARE THAT THE USE OF UNAUTHORIZED
COMPONENTS, ACCESSORIES OR DEVICES MAY ADVERSELY AFFECT THE
OPERATION OF THE HEAT PUMP AND MAY ALSO ENDANGER LIFE AND
PROPERTY. THE MANUFACTURER DISCLAIMS ANY RESPONSIBILITY FOR
SUCH LOSS OR INJURY RESULTING FROM THE USE OF SUCH UNAUTHORIZED COMPONENTS, ACCESSORIES OR DEVICES.
WARNING
!
DISCO NNE CT ALL POWER TO THE UNIT BEFORE STAR TIN G M AINTENANCE. FAILURE TO DO SO CAN RESULT IN SEVERE ELECTRICAL SHOCK
OR DEATH.
WARNING
!
DO NOT, UNDER ANY CIRCUMSTANCES, CONNECT RETURN DUCTWORK TO
ANY OTHER HEAT PRODUCING DEVICE SUCH AS A FIREPLACE INSERT,
STOVE, ETC. UNAUTHORIZED USE OF SUCH DEVICES MAY RESULT IN FIRE,
CA R BON M ONOXID E POI S ONING, EXPL O SION, PROP E R TY D AMAGE,
SEVERE PERSONAL INJURY OR DEATH.
WARNING
!
TURN OFF ELECTRIC POWER AT THE FUSE BOX OR SERVICE PANEL BEFORE
MAKING ANY ELECTRICAL CONNECTIONS.
ALSO, THE GROUND CONNECTION MUST BE COMPLETED BEFORE MAKING
LINE VOLTAGE CONNECTIONS. FAILURE TO DO SO CAN RESULT IN ELECTRICAL SHOCK, SEVERE PERSONAL INJURY OR DEATH.
WARNING
!
THE UNIT MUST BE PERMANENTLY GROUNDED. A GROUNDING LUG IS
PROVIDED. FAILURE TO GROUND THIS UNIT CAN RESULT IN FIRE OR ELECTRICAL SHOCK CAUSING PROPERTY DAMAGE, SEVERE PERSONAL INJURY
OR DEATH.
WARNING
!
ONLY ELECTRIC HEATER KITS SUPPLIED BY THIS MANUFACTURER AS
DESCRIBED IN THIS PUBLICATION HAVE BEEN DESIGNED, TESTED, AND
EVALUATED BY A NATIONALLY RECOGNIZED SAFETY TESTING AGENCY
FOR USE WITH THIS UNIT. USE OF ANY OTHER MANUFACTURED ELECTRIC
HEATERS INSTALLED WITHIN THIS UNIT MAY CAUSE HAZARDOUS CONDITIONS R ESU LTI NG IN PR OPE RTY DAMAGE, FIRE, BODILY INJURY OR
DEATH.
3
WARNING
!
PROPOSITION 65: THIS APPLIANCE
CONTAINS FIBERGLASS INSULA-
ION. RESPIRABLE PARTICLES OF
T
FIBERGLASS ARE KNOWN TO THE
STATE OF CALIFORNIA TO CAUSE
CANCER.
II. INTRODUCTION
This booklet contains the installation and operating instructions for your package heat
pump. There are a few precautions that should be taken to derive maximum satisfaction
from it. Improper installation can result in unsatisfactory operation or dangerous conditions.
Read this booklet and any instructions packaged with separate equipment required to
make up the system prior to installation. Give this booklet to the owner and explain its
provisions. The owner should retain this booklet for future reference.
NOTE: A load calculation must be performed to properly determine the required
heating and cooling for the structure. Also, the duct must be properly designed and
installed for proper airflow. Existiing ductwork must be inspected for proper size and
sealed system. Proper airflow is necessary for both user comfort and equipment
performance.
IMPORTANT: Proper application, installation and maintenance of this equipment is
a must if consumers are to receive the full benefit for which they have paid.
A. R-410A REFRIGERANT
All units are factory charged with R-410A refrigerant.
WARNING
!
THE MANUFACTURER’S WARRANTY DOES NOT COVER ANY DAMAG E OR D E FECT TO THE HEAT
PUMP CAUSED BY THE ATTACHMENT OR US E OF ANY COMP ONE N T S, AC C E SSORIES OR
DE V ICES (OTHE R TH AN THOSE
AUTHORIZED BY THE MANUFACTURER) INTO, ONTO OR IN CONJUNCTION WITH THE HEAT PUMP.
YO U S H OULD BE AWAR E T H AT
THE USE OF UNAUTHORIZED COMPO N E NTS, AC C E SSORIES O R
DE V I CES MA Y ADVERS E L Y
AFFECT THE OPERATION OF THE
HE A T PU M P AN D MAY ALSO
ENDANGER LIFE AND PROPERTY.
THE MANUFACTURER DISCLAIMS
ANY RESPONSIBILITY FOR SUCH
LO S S OR INJU R Y RE S ULTING
FROM THE USE OF SUCH UNAUTHORIZED COMPONENTS, ACCESSORIES OR DEVICES.
1. Specification of R-410A:
Application: R-410A is not a drop-in replacement for R-22; equipment designs must
accommodate its higher pressures. It cannot be retrofitted into R-22 units.
Pressure: The pressure of R-410A is approximately 60% (1.6 times) greater than
R-22. Recovery and recycle equipment, pumps, hoses and the like need to have design
pressure ratings appropriate for R-410A. Manifold sets need to range up to 800 psig
high-side and 250 psig low-side with a 550 psig low-side retard. Hoses need to have a
service pressure rating of 800 psig. Recovery cylinders need to have a 400 psig service
pressure rating. DOT 4BA400 or DOT BW400.
Combustibility: At pressures above 1 atmosphere, mixture of R-410A and air can
become combustible. R-410A and air should never be mixed in tanks or supply
lines, or be allowed to accumulate in storage tanks. Leak checking should never
be done with a mixture of R-410A and air. Leak checking can be performed safely
with nitrogen or a mixture of R-410A and nitrogen.
2. Quick Reference Guide For R-410A
• R-410A refrigerant operates at approximately 60% higher pressure (1.6 times) than R-
22. Ensure that servicing equipment is designed to operate with R-410A.
• R-410A refrigerant cylinders are pink.
• R-410A, as with other HFC’s is only compatible with POE oils.
• Vacuum pumps will not remove moisture from POE oil.
• R-410A systems are to be charged with liquid refrigerants. Prior to March 1999, R410A refrigerant cylinders had a dip tube. These cylinders should be kept upright for
equipment charging. Post March 1999 cylinders do not have a dip tube and should be
inverted to ensure liquid charging of the equipment.
• Do not install a suction line filter drier in the liquid line.
• A liquid line filter drier is standard on every unit.
• Desiccant (drying agent) must be compatible for POE oils and R-410A.
3. Evaporator Coil / TXV
The thermostatic expansion valve is specifically designed to operate with R-410A. DO
NOT use an R-22 TXV. The existing evaporator must be replaced with the factory
specified TXV evaporator specifically designed for R-410A.
4. Tools Required For Installing & Servicing R-410A Models
Manifold Sets:
-Up to 800 PSIG High side
-Up to 250 PSIG Low Side
-550 PSIG Low Side Retard
Manifold Hoses:
-Service Pressure Rating of 800 PSIG
Recovery Cylinders:
-400 PSIG Pressure Rating
-Dept. of Transportation 4BA400 or BW400
!
CAUTION
R-410A systems operate at higher pressures than R-22 systems. Do not use
R-22 service equipment or components on R-410A equipment.
4
IGURE 1
Model
0
24, 030, 036
0
42, 048, 060
Height “A”
2
9 1/8"
3
7 1/8"
211/16"
[266.7 mm]
59"
[1498.6 mm]
53
1
/2"
[1358.9 mm]
3
1
/16"
[77.7 mm]
A
CONTROL
BOX ACCESS
211/16"
[266.7 mm]
CONDENSATE
DRAIN
PAN
ACCESS
PRIMARY
HIGH VOLTAGE
ENTRANCE
1
23
/32" [43.7 mm]
4
13
/32"
[111.8 mm]
5
9
/64"
[130.5 mm]
19
7
/8"
[505 mm]
57/8"
[149.5 mm]
3
1
/2"
[88.9 mm]
3
3
/4"
[95.3 mm]
7
21
/32"
[194.3 mm]
313/64"
[81.2 mm]
AUXILIARY
HIGH VOLTAGE
ENTRANCE
1
23
/32" [43.7 mm]
LOW VOLTAGE
ENTRANCE
7
/8" [22.2 mm]
RECOMMENDED UNIT
DISCONNECT LOCATION
F
UNIT DIMENSIONS AND ACCESS LOCATIONS
FRONT VIEW
BOTTOM VIEW
ELECTRICAL CONNECTIONS
5
UCT CONNECTIONS
14.00"
[355.6 mm]
14.00"
[355.6 mm]
[19.05 mm]
"
3
4
/
14.00"
[355.6 mm]
14.00"
[355.6 mm]
[19.05 mm]
"
3
4
/
IMPORTANT: DO NOT SCREW OR DRILL OUTSIDE THE DESIGNATED AREAS.
1
4"
[355.6 mm]
14"
[
355.6 mm]
D
OUND DUCT CONNECTIONS
R
IN THIS AREA
DO NOT DRILL OR INSTALL SCREWS
SQUARE DUCT CONNECTIONS
6
III. CHECKING PRODUCT RECEIVED
Upon receiving the unit, inspect it for any damage from shipment. Claims for damage,
either shipping or concealed, should be filed immediately with the shipping company.
Check the unit model number, heating size, electrical characteristics, and accessories to
determine if they are correct.
IV. EQUIPMENT PROTECTION FROM THE
ENVIRONMENT
The metal parts of this unit may be subject to rust or deterioration in adverse environmental conditions. This oxidation could shorten the equipment’s useful life. Salt spray, fog or
mist in seacoast areas, sulphur or chlorine from lawn watering systems, and various chemical contaminants from industries such as paper mills and petroleum refineries are especially corrosive.
If the unit is to be installed in an area where contaminants are likely to be a problem,
special attention should be given to the equipment location and exposure.
1. Avoid having lawn sprinkler heads spray direction on the unit cabinet.
2. In coastal areas, locate the unit on the side of the building away from the waterfront.
3. Shielding provided by a fence or shrubs may give some protection.
4. Elevating the unit off its slab or base enough to allow air circulation will help avoid
holding water against the basepan.
Regular maintenance will reduce the buildup of contaminents and help to protect
the unit’s finish.
WARNING
!
DISCONNE CT ALL POWER TO THE UNIT BEFORE STARTI NG MAI NTENANCE. FAILURE TO DO SO CAN RESULT IN SEVERE ELECTRICAL SHOCK
OR DEATH.
1. Frequent washing of the cabinet, fan blade and coil with fresh water will remove most
of the salt or other contaminants that build up on the unit.
2. Regular cleaning and waxing of the cabinet with an automobile polish will provide
some protection.
3. A liquid cleaner may be used several times a year to remove matter that will not wash
off with water.
Several different types of protective coatings are offered in some areas. These coatings
may provide some benefit, but the effectiveness of such coating materials cannot be verified by the equipment manufacturer.
The best protection is frequent cleaning, maintenance and minimal exposure to
contaminants.
V. SPECIFICATIONS
Suitable for use in mobile homes, manufactured housing, and conventionally constructed
residential and commercial buildings where horizontally-ducted systems are preferred.
VI. INSTALLATION
A. GENERAL
1. PRE-INSTALLATION CHECK-POINTS
Before attempting any installation, the following points should be carefully considered:
a. Structural strength of supporting members.
(rooftop installation)
b. Clearances and provision for servicing.
c. Power supply and wiring.
d. Air duct connections.
e. Drain facilities and connections.
f. Location for minimum noise.
2. LOCATION
These units are designed for outdoor installations. They can be mounted on a
slab or rooftop. They are not to be installed within any part of a structure such as
an attic, crawl space, closet, or any other place where condenser air flow is
restricted or other than outdoor ambient conditions prevail. Since the application
of the units is of the outdoor type, it is important to consult your local code authorities at the time the first installation is made.
7
FIGURE 2
PACKAGED HEAT PUMP
UTSIDE SLAB INSTALLATION, BASEMENT OR
O
CRAWL SPACE DISTRIBUTION SYSTEM
FIGURE 3
ACKAGED HEAT PUMP
P
PITCHED ROOFTOP INSTALLATION, ATTIC
R DROP CEILING DISTRIBUTING SYSTEM.
O
MUST BE MOUNTED LEVEL.
B. OUTSIDE SLAB INSTALLATION
(Typical outdoor slab installations are shown in Figure 2.)
1. Select a location where external water drainage cannot collect around the unit.
2. Provide a level concrete slab extending 3" beyond all four sides of the unit. The
slab should be sufficient above grade to prevent ground water from entering the
unit.
IMPORTANT: To prevent transmission of noise or vibration, slab should not be
connected to building structure.
3. The location of the unit should be such as to provide proper access for inspection
and servicing.
4. Locate unit where operating sounds will not disturb owner or neighbors.
5. Locate unit so roof runoff water does not pour directly on the unit. Provide gutter
or other shielding at roof level. Do not locate unit in an area where excessive
snow drifting may occur or accumulate.
6. It is essential that the unit be elevated above the base pad to allow for condensate drainage and possible refreezing of condensation. Provide a base pad which
is slightly pitched away from the structure. Route condensate off base pad to an
area which will not become slippery and result in personal injury.
IMPORTANT: Avoid blocking openings in bottom of unit.
7. Where snowfall is anticipated, the height of the unit above the ground level must
be considered. Mount unit high enough to be above average area snowfall and to
allow for proper condensate drainage.
IMPORTANT: Avoid blocking openings in bottom of unit.
C. CLEARANCES
The following minimum clearances must be observed for proper unit performance
and serviceability.
1. Provide 30" minimum clearance at the front and 18" on the right side of the unit
for service access. Provide 12" minimum clearance on the left side of the unit for
air inlet.
2. Provide 60" minimum clearance from top of unit.
8
3. Unit is design certified for application on combustible flooring with 0" minimum
clearance.
4. See Figure 2 for illustration of minimum installation-service clearances.
D. ROOFTOP INSTALLATION
1. Before locating the unit on the roof, make sure that the strength of the roof and
beams is adequate at that point to support the weight involved. (See specification
sheet for weight of unit.) This is very important and user’s responsibility.
2. The unit should be placed on a solid and level platform of adequate strength.
IM PO RTA NT: A void blocking ope nings in bottom of uni t. (See Figure 3).
rovision for disposal of outdoor coil defrost water runoff must be provided.
P
3. The location of the unit on the roof should be such as to provide proper access for
inspection and servicing.
IMPORTANT: If unit will not be put into service immediately, cover supply and return
openings to prevent excessive condensation.
VII. DUCTWORK
Ductwork should be fabricated by the installing contractor in accordance with local codes
and NFPA90A. Industry manuals may be used as a guide when sizing and designing the
duct system - contact Air Conditioning Contractors of America, 1513 16th St. N.W.,
Washington, D.C. 20036.
WARNING
!
DO NOT, UNDER ANY CIRCUMSTANCES, CONNECT RETURN DUCTWORK TO
ANY OTHER HEAT PRODUCING DEVICE SUCH AS A FIREPLACE INSERT,
STOVE, ETC. UNAUTHORIZED USE OF SUCH DEVICES MAY RESULT IN FIRE,
CA R BON M ONOXID E POI S ONING, EXPL O SION, PROP E R TY D AMAGE,
SEVERE PERSONAL INJURY OR DEATH.
Place the unit as close to the space to be air conditioned as possible allowing clearance
dimensions as indicated. Run ducts as directly as possible to supply and return outlets.
Use of non-flammable waterproof flexible connectors on both supply and return connections at the unit to reduce noise transmission is recommended.
It is preferable to install the unit on the roof of the structure if the registers or diffusers
are located on the wall or in the ceiling. Consider a slab installation when the registers
are low on a wall or in the floor.
On ductwork exposed to outside air conditions of temperature and humidity, use a minimum of 2" of insulation and a vapor barrier. Distribution system in attic, furred space or
crawl space should be insulated with at least 2" of insulation with vapor barrier. One-half
to 1" thickness of insulation is usually sufficient for ductwork inside the air conditioned
space.
Provide balancing dampers for each branch duct in the supply system. Properly support
the ductwork from the structure.
VIII.FILTERS
Filters are not provided with this unit. They must be supplied and installed in the return
air duct by the installer. A field installed filter grille is recommended for easy and convenient access to the filters for periodic inspection and cleaning. Filters must have adequate face area for the rated air quantity of the unit. See General Database for recommended filter size.
IX. CONDENSATE DRAIN
The indoor coil condensate drain ends with a PVC stub. A trap is provided in for proper
condensate drainage and to prevent debris from being drawn into the unit. Do not connect drain to closed sewer line. It is not recommended that a PVC cement or other permanent installation be used so that the drain line and/or drain pan can be easily cleaned
in the future. The drain trap is located in the control box during shipping. To install, slide
clear plastic tube over drain pan connection. The white PVC trap can be oriented as
required by installation.
9
FIGURE 4
EMOVABLE CONDENSATE
R
DRAIN PAN AND REMOVAL
ROCEDURE
P
A small side panel grants
ccess to a removable, sloped
a
drain pan (A), which helps to
ensure indoor air quality (IAQ)
throughout the life of the unit. A
drain trap (B) assembly
is provided for
convenience.
X. CONDENSATE DRAIN, OUTDOOR COIL
The outdoor coil during heating operation will sweat or run water off. The outdoor coil will
also run water off during the defrost cycle. See Section V, Installation, for mounting pre-
autions.
c
RAINPAN
D
LEAR PVC
C
ONNECTOR TUBE
C
VC ELBOW
P
PVC TRAP
WARNING
!
TURN OFF ELECTRIC POWER AT
TH E FUS E BO X OR SERVICE
PA N E L BE F O RE MA KING ANY
ELECTRICAL CONNECTIONS.
ALSO, THE GROUND CONNECTION
MU ST BE COMPLETE D BEFOR E
MAKING LINE VOLTAGE CONNECTIONS. FAILURE TO DO SO CAN
RESULT IN ELECTRICAL SHOCK,
SEVERE PERSONAL INJURY OR
DEATH.
A
B
XI. ELECTRICAL WIRING
Field wiring must comply with the National Electrical Code* and applicable local codes.
*C.E.C. in Canada
A. POWER WIRING
1. It is important that proper electrical power is available at the unit. Voltage should
not vary more than 10% from that stamped on the unit rating plate. On three
phase units, phases must be balanced within 3%.
2. Install a branch circuit disconnect within sight of the unit and of adequate size to
handle the starting current. (See Heater Kit Tables.)
3. For branch circuit wiring (main power supply to unit disconnect), the minimum
wire size can be determined from the National Electrical Code or Canadian
Electrical Code or nameplate or from Heater Kit Tables.
4. This unit supports both single and dual point electrical connection for unit and
electric heat accessory.
5. Power wiring must be run in grounded rain-tight conduit.
B. POWER WIRING AND ELECTRIC HEATER KIT INSTRUCTIONS
1. Turn off power to unit.
2. Remove control box access panel.
3. Remove unit indoor section top cover.
4. Remove wire notch cover from control bulkhead and discard. Retain screw.
5. Remove heater element cover plate from blower outlet opening and discard. Retain
screws.
6. Mount heater fuse block assembly in location indicated with the three included
screws.
7. Route wire harness assembly through wire notch in control bulkhead and mount element assembly in blower outlet opening with screws previously retained.
8. Center wire routing plate over notch in blower bulkhead and secure with screw previously retained.
9. Route and tie wiring as shown in Figure 5. Wiring must not contact moving parts or
uninsulated electrical connections.
10. Replace unit indoor top cover.
11. Connect power and control wiring as indicated below:
a. Single-point wiring: Connect high voltage field power leads to heater kit fuse
block and connect included unit power pigtails from heater kit fuse block to unit
10
FIGURE 5
EATER KIT INSTALLATION
H
contactor L1 and L3 connections. Connect ground lead to ground lug on heater kit
fuse block.
b. Dual-circuit wiring: Remove unit power pigtails from heater kit fuse block and
iscard. Connect one set of high voltage field power circuit leads to the heater kit
d
fuse block and connect ground lead to ground lug on heater kit fuse block.
Connect the second set of high voltage field power leads to L1 and L3 on the unit
contactor. Connect ground lead to ground lug on control box bulkhead.
c. Connect heater kit control plug to receptacle in control box.
12. Replace control box access panel.
3. Restore power to unit and verify proper unit and heater kit operation.
1
C. CONTROL WIRING (Class II)
1. Do not run low voltage wiring in conduit with power wiring.
2. Control wiring is routed through the 7/8" hole corner adjacent to the control box.
See Electrical Connections, Figure 1. Use a minimum #18 AWG thermostat wire.
For wire lengths exceeding 50', use #16 AWG thermostat wire. The low voltage
wires are connected to the unit pigtails which are supplied with the unit in the low
voltage connection box located within the unit control box. See Figure 5.
3. It is necessary that only heat pump thermostats be used.
4. Figure 6 shows representative low voltage connection diagrams. Read your thermostat installation instructions for any special requirements for your specific thermostat.
RECOMMENDED
WIRING
HEATER
KIT
WIRING
HEATER
ELEMENTS
NOTE — Units installed in Canada require that an outdoor thermostat (30,000
min. cycles of endurance) be installed and be wired with C.E.C. Class I wiring.
D. INTERNAL WIRING
1. A diagram of the internal wiring of this unit is located on the electrical control box
cover. If any of the original wire as supplied with the appliance must be replaced,
the wire gauge and insulation must be the same as original wiring.
E. GROUNDING
WARNING
!
THE UNIT MUST BE PERMANENTLY GROUNDED. A GROUNDING LUG IS
PROVIDED. FAILURE TO GROUND THIS UNIT CAN RESULT IN FIRE OR ELECTRICAL SHOCK CAUSING PROPERTY DAMAGE, SEVERE PERSONAL INJURY
OR DEATH.
11
FIGURE 6
VOLTAGE CONNECTIONS DIAGRAM
F. THERMOSTAT
ount the thermostat on an inside wall about five feet above the floor in a location
M
where it will not be affected by unconditioned air, sun, or drafts from open doors or
other sources. READ installation instructions in heat pump thermostat package
CAREFULLY because each has some different wiring requirements.
XII. INDOOR AIR FLOW DATA
All 208/230 volt units are equipped with multi-speed indoor blower motors. Each unit is
shipped factory wired for the proper speed at a normal external static. See Airflow
Performance Table for blower performance.
XIII. PRE-START CHECK
1. Is unit properly located and level?
2. Is ductwork insulated, weatherproofed, with proper spacing to combustible materials?
3. Is air free to travel to and from outdoor coil? (See Figure 1.)
12
4. Is the wiring correct, tight, and according to unit wiring diagram?
5. Is unit grounded?
6. Are field supplied air filters in place and clean?
7. Do the outdoor fan and indoor blower turn freely without rubbing, and are they tight
on the motor shafts?
8. Has crankcase heat been on for at least 12 hours?
9. Is unit elevated to allow for outdoor coil condensate drainage during heating operation and defrost?
XIV.STARTUP
1. Turn thermostat to “OFF,” turn “on” power supply at disconnect switch.
2. Turn temperature setting as high as it will go.
3. Turn fan switch to “ON.”
4. Indoor blower should run. Be sure it is running in the right direction.
5. Turn fan switch to “AUTO.” Turn system switch to “COOL” and turn temperature setting below room temperature. Unit should run in cooling mode.
6. Is outdoor fan operating correctly in the right direction?
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