Embed Size (px)
Citation preview
INSTALLATION INSTRUCTIONS FORPACKAGE HEAT PUMP OR PACKAGE COOLING UNIT
HEAT PUMP/ELECTRIC COOLING SAFETY
Table of ContentsHEAT PUMP/ELECTRIC COOLING SAFETY...............................1INSTALLATION REQUIREMENTS................................................2
Tools and Parts ............................................................................2Location Requirements................................................................2Ductwork Requirements ..............................................................2Electrical Requirements ...............................................................3
INSTALLATION INSTRUCTIONS..................................................3Inspect Shipment .........................................................................3Place Heat Pump or Condensing Unit in Final Location.............3Convert to Downflow ...................................................................4Connect Condensate Drain .........................................................4Install Ductwork............................................................................5Install Accessory Heater ..............................................................5Make Electrical Connections .......................................................6
Complete Installation....................................................................7SEQUENCE OF OPERATION ........................................................7
Cooling Cycle—Cooling Only ......................................................7Cooling Cycle—Heat Pump Only.................................................7Heating Cycle ...............................................................................8Defrost Cycle................................................................................8Adjust Defrost System .................................................................9Troubleshoot the Defrost System ................................................9Circulating Air Blower (PSC Motor)............................................10Circulating Air Blower (Variable Speed Motor) ..........................10
SYSTEM MAINTENANCE ............................................................11TROUBLESHOOTING ..................................................................12ASSISTANCE OR SERVICE.........................................................16
Accessories ................................................................................16
48373F007
Whirlpool® Home Cooling and Heating14610 Breakers Drive
Jacksonville, FL 32258
Whirlpool® Models W2PH3, W2PC3, W4PH4, W4PC4
You can be killed or seriously injured if you don't immediately
You can be killed or seriously injured if you don't follow
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what canhappen if the instructions are not followed.
Your safety and the safety of others are very important.We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word “DANGER” or “WARNING.”These words mean:
follow instructions.
instructions.
DANGER
WARNING
2
INSTALLATION REQUIREMENTSThese instructions are intended as a general guide only for use by qualified persons and do not supersede any national or local codes in any way. Compliance with all local, state, or national codes pertaining to this type of equipment should be determined prior to installation.Read this entire instruction manual, as well as the instructions supplied in separate equipment, before starting the installation.The installation of the heat pump or condensing unit, wiring, warm air ducts, venting, etc., must conform to the requirements of the National Fire Protection Association; the National Electrical Code, ANSI/NFPA No. 70 (latest edition) in the United States, and any state laws, local ordinances (including plumbing or wastewater codes). Local authorities having jurisdiction should be consulted before installation is made. Such applicable regulations or requirements take precedence over the general instructions in this manual.
Tools and PartsGather the required tools before starting installation. Read and follow the instructions provided with any tools listed here.
Tools needed
Parts neededCheck local codes and existing electrical supply. Read “Electrical Requirements” and “Ductwork Requirements” before purchasing parts.
Location Requirements■ This heat pump or condensing unit is designed to be located
outdoors with sufficient clearance for free entrance to the inlet and discharge air openings. The location must also allow for adequate service access. See “Minimum Clearances.”
■ Where possible, select a location for the heat pump or condensing unit which is shaded from the direct rays of the sun most of the time. North or east locations are usually most desirable. Position the heat pump or condensing unit to avoid direct contact with water, snow or ice from a roofline overhead.
■ The heat pump or condensing unit must be installed on a solid, level mounting pad that will not settle or shift. Isolate the pad from the building structure to avoid possible transmission of sound or vibration from the heat pump or condensing unit into the conditioned space.
■ The heat pump or condensing unit foundation should be raised to a minimum of 3" above finish grade. In areas which have prolonged periods of temperature below freezing and snowfall, the heat pump or condensing unit should be elevated above the average snow line. If the heat pump or condensing unit is to be installed on a flat roof, it should be on a platform or other support which will raise the base a minimum of 8" above the surface of the flat roof.
■ Avoid placing a heat pump or condensing unit near areas such as sleeping quarters or study rooms. Normal operating sound levels may be louder than desired if the heat pump or condensing unit is placed near certain rooms.
Minimum Clearances
Ductwork Requirements■ Install all conditioned air plenums, ducts and air filters in
accordance with NFPA 90B Standard for the Installation of Warm Air Heating and Air-Conditioning Systems (latest edition).
■ The heat pump or condensing unit is provided with flanges for the connection of the plenum and ducts.
■ All air filters must be listed as Class 2 air filters.
■ All ductwork must be made of materials and insulated to meet local, state and national codes. Ductwork installed outdoors must be sealed, weatherproof and protected against physical damage. Caulking, flashing or other means of adequately providing a permanent weather seal should be used where duct penetrates a building or structure opening.
■ ⁵⁄₁₆" nut driver
■ Screwdriver
■ Tape measure
A. Heater compartment access panelB. Blower access panelC. Evaporator coil access panel
D. Filter access panel E. Return air duct F. Supply air duct
Minimum Clearance Requirements
For Optimum Service Access
For Optimum Operation
Front 48" 24"
Rear 24" 3"
Condenser End 24" 3"
Blower End 30" 0"
Top 36" 36"
30"
2"
36"
24"
48"
Minimum - 3"Recommended - 24"
F
E
D
CB
A
Front side of unit
3
Electrical Requirements
NOTE: All outdoor wiring must be suitable for outdoor use. Use copper conductors only.
■ All field wiring must be done in accordance with National Electrical Code requirements, applicable requirements of UL, or local codes, where applicable.
■ Electrical wiring, disconnect means and over current protection are to be supplied by the installer. Refer to the rating plate for the maximum over current protection, minimum service ampacity, and operating voltage. See the wiring connection diagrams in “Troubleshooting.”
■ This heat pump or condensing unit must be electrically grounded in accordance with National Electric Code (ANSI/NFPA 70) requirements, applicable requirements of UL, or local codes, where applicable.
INSTALLATION INSTRUCTIONSInspect Shipment
This heat pump or condensing unit is shipped in one package, completely assembled and wired. The indoor thermostat and accessories are shipped in a separate carton when ordered.1. Check the heat pump or condensing unit rating plate to
confirm specifications are as ordered.2. Upon receipt of heat pump or condensing unit, inspect it for
possible shipping damage. Be sure to examine the heat pump or condensing unit inside the carton if the carton is damaged.
If damage is found, it should be noted on the carrier’s freight bill. Damage claims should be filed with the carrier immediately. Claims of shortages should be filed with the seller within 5 days.NOTE: If any damages are discovered and reported to the carrier, do not install the heat pump or condensing unit as your claim may be denied.
Place Heat Pump or Condensing Unit in Final Location
IMPORTANT: Place the heat pump or condensing unit in the final location and position it in the proper orientation to the house so that connecting ducts and electrical supplies is easily done. Hoisting may be required.
Hoisting
An accessory lift kit must be purchased to hoist the heat pump or condensing unit. See “Accessories.” Attach the rigging to the lifting brackets on each corner.NOTE: All access panels must be secured in place before hoisting.
WARNING
Rating Plate Ampacity
Less than 15
16 - 20
21 - 30
AWG
14
12
10
Electrical Shock Hazard
Electrically ground condensing unit or heat pump.
Connect ground wire to ground terminal marked “GROUND”.
Use copper wire for supply connection.
Correct wire gauge is shown in the chart below.
Failure to follow these instructions can result in death or electrical shock.
31 - 50 8
Excessive Weight Hazard
Use two or more people and mechanical equipment to lift, move and install condensing unit or heat pump.
WARNING
Failure to do so can result in back or other injury.
Excessive Weight Hazard
Use two or more people and mechanical equipment to lift, move and install condensing unit or heat pump.
WARNING
Failure to do so can result in back or other injury.
4
The heat pump or condensing unit should be hoisted with 2 lifting slings. Attach the slings to rigging shackles that have been hooked through holes in the lifting brackets.Place 2 spreaders on top of the heat pump or condensing unit to protect it from damage from the pressure exerted by the slings. Make sure that all equipment is rated to handle at least 750 lbs and that the slings will not allow the heat pump or condensing unit to shift. See “Typical Sling Configuration.”
Typical Sling Configuration
Convert to DownflowThis heat pump or condensing unit is factory-built for horizontal airflow applications and may also be field-converted for downflow use.
To convert to downflow use:1. Remove the filter access panel.2. Remove the two downflow duct cover plates (one screw and
tab for each) found in the return and supply air compartments.
3. Using eight #10 x ³⁄₄" screws (field supplied), install the previously removed duct covers on the horizontal return and supply air openings. Use the pilot holes provided.
4. Reinstall the filter access panel.
Connect Condensate DrainThe condensate drain outlet is a ³⁄₄" threaded PVC fitting located at the bottom on the side of the heat pump or condensing unit. A ³⁄₄" drain line with trap must be installed on all applications to avoid accumulation of condensate under or around the heat pump or condensing unit.
Install Condensate Trap
1. Construct the condensate trap from PVC tubing as shown in “Condensate Trap Construction.”
NOTES:■ The condensate trap allows a standing column of water of
at least 2" (50 mm).
■ The top of the drain trap inlet must be at least least 1" (25 mm) above the top of the drain trap outlet.
■ The trap should be installed as close to the heat pump or condensing unit as possible, while still providing proper drainage.
■ For service access, do not block heat exchanger access panel or the filter access panel with the drain line.
2. Thread the drain assembly into the ³⁄₄" PVC fitting.NOTE: Do not glue the threaded fitting so it can be removed during servicing of unit.
3. Run the drain line to an open drain or other suitable disposal point.
Condensate Trap Construction
A. SpreadersB. CablesC. Lifting bracket (accessory lift kit)
D. Sheet metal screw
E. Pallet
A. Horizontal return and supply air openingsB. Filter access panel C. Downflow duct cover plates
D
E
AB C
C
A
B
A. ³⁄₄" PVC fitting (threaded) drain condensate connection
B. ³⁄₄" drain pipes, field provided
C. Drain trap outletD. Drain trap inlet
A
B
1" Min.
12" Max.
2" Min.
3" Min.
C
D
5
Install Ductwork■ Install ductwork in accordance with NFPA 90B and any local
codes.
■ The use of flexible, noncombustible connectors between the main trunk ducts and the supply and return air plenums is recommended to minimize vibration transmission.
■ Plenums must be individually sealed to heat pump or condensing unit casing with ducts terminating inside the structure.
■ Flashing used to cover ductwork must permit removal of access panels and top. See “Minimum Clearances” in the “Locations Requirements” section.
Filters
Filters are not supplied with these heat pumps or condensing units; however, filters must be used. It is the installer’s responsibility to install a filter rack with the ductwork and to install properly sized filters in accordance with the Minimum Required Surface Area for Disposable Filters chart.
All return air must pass through a filter before entering the heat pump or condensing unit. An electronic air cleaner, filter rack or other accessible filter arrangement must be installed in the return air ductwork. Minimum recommended filter areas are listed in the Minimum Required Surface Area for Disposable Filters chart, and are based on a face velocity of 325 ft (99.1 m) per min. for disposable filters and 525 ft (160 m) per min. for cleanable filters.
Install Accessory Heater
1. Disconnect power.2. Remove the heater compartment access panel.
3. Remove the heater blockoff by removing the 4 screws holding it in place.
4. Insert the heater kit into the control panel and fasten in the same mounting holes.
5. Disconnect the plugs connecting the no-heat wire harness to the control assembly wire harness.
6. Remove the no-heat wire harness plugs.
7. Plug the heater wiring harness into the control assembly wire harness.
8. See “Make Electrical Connections” for instructions on connecting power to the heater kit.
9. Replace the heater compartment access panel.10. Reconnect power.
Minimum Required Surface Area for Disposable Filters
Nominal Cooling Filter Area (sq. ft)
24,000 2.67
30,000 3.33
36,000 4.00
42,000 4.67
48,000 5.33
60,000 6.67
A. Blower access panel B. Heater blockoff
C. Heater kit D. Heater compartment access panel
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
B C
D
A
A. No-heat wire harnessB. Control assembly wire harnessC. Heater wire harness
A
BC
6
Make Electrical Connections
IMPORTANT: ■ Electrical wiring, disconnect means and over-current
protection are to be supplied by the installer. Refer to the rating plate for the maximum over-current protection, minimum circuit ampacity and operating voltage. See the wiring connection diagrams in “Troubleshooting.”
■ Install an adequate sized branch circuit disconnect, according to the NEC, within sight of and readily accessible to heat pump or condensing unit.
■ The cable or conduit and fittings connected from the disconnect switch to the heat pump or condensing unit wiring connections shall be rated for outdoor use.
■ Check the heat pump or condensing unit rating plate to determine whether the system is rated single phase or three phase and follow the appropriate instructions for connecting the pigtail leads.
■ Plug unused side entry holes with field-supplied plugs to prevent moisture from entering the heat pump or condensing unit.
■ Low voltage wiring must be separated from line voltage wiring.
Line Voltage Connections
1. Disconnect power.2. Remove the blower access panel.3. Remove the heater compartment access panel.4. Route the field supply wires through the line voltage conduit
opening to the electrical connection area, providing sufficient length to connect to the pigtail leads.
Single Phase Units■ Connect the field supply wires (L1, L2) to the 2 black pigtail
leads using UL listed wire nuts.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
WARNING
Rating Plate Ampacity
Less than 15
16 - 20
21 - 30
AWG
14
12
10
Electrical Shock Hazard
Electrically ground condensing unit or heat pump.
Connect ground wire to ground terminal marked “GROUND”.
Use copper wire for supply connection.
Correct wire gauge is shown in the chart below.
Failure to follow these instructions can result in death or electrical shock.
31 - 50 8
7
Three Phase Units■ Connect the field supply wires (L1, L2, L3) to the 3 black
pigtail leads using UL listed wire nuts.
NOTE: Check compressor operation for proper rotation. If the rotation is not correct, then reverse any two leads (for example: L1 and L2). Incorrect rotation is identified by excessive sound or improper system pressures.
Line and Low Voltage Connections
1. Route the low voltage supply wires through the low voltage entry opening to the low voltage connection area providing sufficient length to connect to the low voltage pigtail leads.
2. Using UL listed wire nuts, connect the low voltage supply wires to the matching colors of the low voltage leads.
3. Replace the heater compartment access panel.4. Replace the blower access panel.
208 Volt Conversion
1. Disconnect power.2. Remove the heater compartment access panel.3. Move the black wire lead from the 240-volt terminal on the
transformer to the 208-volt terminal (center tap) on the transformer. See the wiring connection diagrams in “Troubleshooting.”
4. Replace the heater compartment access panel.
Complete InstallationIMPORTANT: Do not use this heat pump or condensing unit if any part has been under water. Immediately call a qualified person to inspect the heat pump or condensing unit and to replace any part of the control system and gas control which has been under water.1. Check to be sure you have all of your tools.2. Dispose of/recycle all packaging materials.3. Check the heat pump or condensing unit in its final location.
SEQUENCE OF OPERATIONCooling Cycle—Cooling Only
Upon cooling demand, the thermostat closes circuit R to Y. Closing R to Y energizes the package unit for cooling operation and closes the contactor, starting the compressor and outdoor fan. The thermostat automatically closes R to G circuit which also brings on the indoor fan at the same time. Upon satisfying cooling demand, the thermostat will open the above circuits nd open the main contactor, stopping the compressor and outdoor fan. If equipped with a delay timer, the blower will continue to operate for 60 to 90 seconds which improves system efficiency.
Cooling Cycle—Heat Pump OnlyUpon cooling demand, the thermostat closes circuit R to O and Y. Closing R to O and Y energizes the reversing valve for cooling operation and closes the heat pump contactor, starting the compressor and outdoor fan. The thermostat automatically closes R to G circuit, which also brings on the indoor fan at the same time. Upon satisfying cooling demand, the thermostat will open the above circuits and open the main contactor, stopping the compressor and outdoor fan. If the indoor unit is equipped with a delay timer, the blower will continue to operate for 60 to 90 seconds, which improves system efficiency.
A. Line voltage supply conduit B. Ground pigtail connection C. Line voltage field supply connections
D. Electrical connection boxE. Low voltage connectionsF. Low voltage supply conduit
D
CB
A
E
F
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Failure to do so can result in death or electrical shock.
Replace all parts and panels before operating.
8
Heating CycleUpon heating demand, the thermostat closes circuit R to Y, which closes the heat pump contactor, starting the compressor and outdoor fan. The reversing valve is not energized in the heating mode. The thermostat again automatically brings on the indoor fan at the same time. Upon satisfying heating demand, the thermostat opens the above circuits and stops heat pump operation.
Defrost CycleIf the outdoor ambient conditions are such that frost forms on the outdoor coil, the defrost control monitors a defrost cycle. It then runs the defrost cycle as ambient temperatures require. The defrost control is time/temperature initiated and temperature terminated with a maximum defrost time (time-out) of 10 minutes. The time between defrost cycles is preset at 60-minute intervals at the factory, but can be field adjusted between 30, 60, or 90 minutes. To adjust the time period between defrost cycles, see “Adjust Time Between Defrost Cycles” in the “Circulating Air Blower” section.The defrost control will initiate a defrost cycle when the selected time period has elapsed and the defrost sensor sees a temperature below freezing. At the start of a defrost cycle, the defrost control will energize the reversing valve solenoid, shifting the reversing valve and de-energizing the outdoor fan. The defrost relay will also close, energizing temporary heat for increased comfort during defrost (if the indoor unit is so equipped). The heat pump will remain in defrost until the defrost sensor has determined that the frost has been removed from the coil or a 10-minute period has elapsed, whichever comes first.
Defrost Thermostat
The defrost thermostat is located on the liquid line between the check/expansion valve and the distributor. When defrost thermostat senses 42ºF or cooler, the thermostat contacts close and send a signal to the defrost control board to start the defrost timing. It also terminates defrost when the liquid line warms up to 70ºF.
Defrost Control
The defrost control board includes the combined functions of the time/temperature defrost control, defrost relay, diagnostic LEDs and terminal strip for field wiring connections. See “Defrost Control Board” in the “Adjust Defrost System” section.The control provides automatic switching from normal heating operation to defrost mode and back. During compressor cycle (call for defrost), the control accumulates compressor run times at 30, 60 or 90 minute field-adjustable intervals. If the defrost thermostat is closed when the selected compressor run time interval ends, the defrost relay is energized and defrost begins.
Defrost Control Timing Pins
Each timing pin selection provides a different accumulated compressor run time period during one thermostat run cycle. This time period must occur before a defrost cycle is initiated. The defrost interval can be adjusted to 30 (T1), 60 (T2) or 90 (T3) minutes. See “Defrost Control Board” in the “Adjust Defrost System” section. The defrost timing jumper is factory-installed to provide a 60-minute defrost interval. If the timing selector jumper is not in place, the control defaults to a 90-minute defrost interval. The maximum defrost period is 14 minutes and cannot be adjusted.A test option is provided for troubleshooting. The test mode may be started any time the unit is in the heating mode and the defrost thermostat is closed or jumpered. If the jumper is in the test position at power-up, the control will ignore the test pins. When the jumper is placed across the Test pins for 2 seconds, the control will enter the defrost mode. If the jumper is removed before an additional 5-second period has elapsed (7 seconds total), the unit will remain in defrost mode until the defrost thermostat opens or 14 minutes have passed. If the jumper is not removed until after the additional 5-second period has elapsed, the defrost will terminate and the test option will not function again until the jumper is removed and re-applied.
Compressor Delay
The defrost board has a field-selectable function to reduce occasional sounds that may occur while the package unit is cycling in and out of the defrost mode. The compressor will be cycled off for 30 seconds while going in and out of the defrost mode when the compressor delay jumper is removed. NOTE: The 30-second “off” cycle is not functional when jumpering the TEST pins.
Time Delay
The time delay is 5 minutes long. The delay helps to protect the compressor from short cycling in case the power to the package unit is interrupted or a pressure switch opens. The delay is bypassed by placing the timer select jumper across the TEST pins for 0.5 seconds.
Pressure Switch Circuit
The defrost control includes LO-PS terminals to connect an optional low pressure (loss of charge pressure) switch. A high pressure switch (optional) can be connected to the HI PS terminals. See “Defrost Control Board” in the “Adjust Defrost System” section.During a single demand cycle, the defrost control will lock out the package unit after the fifth time that the circuit is interrupted by any pressure switch wired to the control board. In addition, the diagnostic LEDs will indicate a locked-out pressure switch after the fifth occurrence of an open pressure switch. See Defrost Control Board Diagnostic LEDs chart later in this section. The package unit will remain locked out until power to the board is interrupted, then re-established, or until the jumper is applied to the TEST pins for 0.5 seconds.NOTE: The defrost control board ignores input from the low pressure switch terminals during:■ TEST mode
■ Defrost cycle
■ 90-second start-up period
■ First 90 seconds after the reversing valve switches heat/cool modes
9
NOTE: If the TEST pins are jumpered and the 5-minute delay is being bypassed, the LO PS terminal signal is not ignored during the 90-second start-up period.
NOTES:■ Because the pressure switches are monitored only when “Y1”
(Input) is active, the code for pressure switch open will not be seen when “Y1” is off. Instead, the “Normal Operation” or “Short Cycle Lockout” code will be seen.
■ When a pressure switch opens and causes a short cycle lockout, the pressure switch-open code will be seen until it closes, then the short cycle lockout code will flash unless it has already expired.
Adjust Defrost System
Defrost Control Board
Optional high pressure switch connectionsNOTE: To add the pressure switch, remove the factory-installed jumper.
Adjust Time Between Defrost Cycles
1. Disconnect power.2. Remove the heater compartment access panel.3. Adjust the time period between defrost cycles by placing the
defrost time plug in the proper position. See “Defrost Control Board.” ■ For 30-minute intervals between defrost cycles, connect
the Defrost Time Setting Plug to the pins corresponding to 30.
■ For 60-minute intervals between defrost cycles, connect the Defrost Time Setting Plug to the pins corresponding to 60 (this setting is the factory preset setting).
■ For 90-minute intervals between defrost cycles, connect the Defrost Time Setting Plug to the pins corresponding to 90.
4. Replace the heater compartment access panel.5. Reconnect power.
Troubleshoot the Defrost System
Diagnostic LEDs
The defrost board uses 2 LEDs for diagnostics. The LEDs flash a specific sequence according to the condition.
Defrost Control Board Diagnostic LEDs
Mode Green LED (DS2)
Red LED (DS1)
No Power to Board Off Off
Normal Operation/Power to Board Simultaneous Slow Flash
Short Cycle Lockout Alternating Slow Flash
Low Pressure Switch Fault Off Slow Flash
Low Pressure Switch Lockout Off On
High Pressure Switch Fault Slow Flash Off
High Pressure Switch Lockout On Off
A. Defrost time setting pinsB. Test pinsC. Compressor delay pinsD. Reversing valveE. Low pressure switch (optional)
F. Defrost thermostatG. High pressure switch (optional)H. Diagnostic LEDsI. Low voltage terminal strip
connections
K1 Relay
K2 Relay
FAN
DS1
L
24V
P2
P5
O-OUT
DF
Y1-OUT
HI-PS
U1 U2
DS2
K3 Relay
P6TST PS DF C R O Y1
C5
LO-PS
C2
P1306090
TEST
W1
C
L
R
Y1
O
H
I
A
B
CD
E
F
G
Defrost Control Board Diagnostic LED
ModeGreen LED (DS2)
Red LED (DS1)
No Power to Board Off Off
Normal Operation/Power to Board Simultaneous Slow Flash
Short Cycle Lockout Alternating Slow Flash
Low Pressure Switch Fault Off Slow Flash
Low Pressure Switch Lockout Off On
High Pressure Switch Fault Slow Flash Off
High Pressure Switch Lockout On Off
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
10
NOTES:■ Because the pressure switches are monitored only when “Y1”
(Input) is active, the code for pressure switch open will not be seen when “Y1” is off. Instead, the “Normal Operation” or “Short Cycle Lockout” code will be seen.
■ When a pressure switch opens and causes a short cycle lockout, the pressure switch-open code will be seen until it closes, then the short cycle lockout code will flash unless it has already expired.
1. Disconnect power.2. Remove the heater compartment access panel.3. Reconnect power and set thermostat for heating operation.4. Observe LEDs and compare to Defrost Control Board
Diagnostic LEDs chart.5. If a system failure is indicated, take appropriate action to
correct.6. Turn off thermostat and disconnect power.7. Replace the heater compartment access panel.8. Reconnect power.
Circulating Air Blower (PSC Motor)The circulating air blower is controlled by a timing circuit in the blower control. Timings are not adjustable.There is no blower “on” delay after a call for heating or cooling. Blower “off” delay is 90 seconds after the thermostat is satisfied.NOTE: No blower speed adjustments are required.
Circulating Air Blower (Variable Speed Motor)Packaged units equipped with a variable speed circulation air blower motor will deliver a constant airflow within a wide range of external static pressures.
Soft Start/Stop
The variable speed motor will slowly ramp up to normal operating speed. This minimizes noise and increases comfort by eliminating the initial blasts of air encountered with standard motors. At the end of a cooling or heating cycle, the motor will slowly ramp down.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
Blower Speed Chart (PSC Motor)for Heat Pump and Cooling Only Models
Unit Factory shipped Settings
Cooling Input (BLK)
24 L (Low)
30 M (Medium)
36 H (High)
42 L (Low)
48 M (Medium)
60 H (High)
11
Circulation Airflow Adjustments
The controls include a variable speed motor interface board. The ADJUST tap can be used to raise (+) or lower (-) the airflow by 15%.
Heating and Cooling Airflows
The packaged units are factory set for the correct heating and cooling airflows. However, airflow changes can be made by moving the position of the HEAT and COOL taps. See Blower Speed Chart (Variable Speed Motor) for Heat Pump and Cooling Only Models.
Continuous Blower
The comfort level of the living space can be enhanced when using this feature by allowing continuous circulation of air between calls for cooling or heating. The continuous circulation of air occurs at half the full cooling airflow rate. To use this feature, place the thermostat fan switch into the ON position.
Cooling Airflow Ramp Up
At the beginning of a call for cooling, the blower will run at 80% of full airflow for 7¹⁄₂ minutes. This improves the system’s moisture removal and saves blower power during cooling start.
Reduced Airflow Operation (Dehumidification)
For situations where humidity control is an issue, the variable speed motor can be connected to operate at a 25% reduction in the normal airflow rate. The variable speed motor interface board provides a connection for a humidistat on the HUM terminal. When a humidistat is connected, the dehumidifier resistor on the interface must be cut. The humidistat should be wired to open during high humidity, which will reduce blower airflow.
ADJUST, HEAT, and COOL Taps and Dehumidify Resistor
SYSTEM MAINTENANCE■ Leaves and other large obstructions should be removed from
the heat pump surfaces without damaging the fin surface of the coil.
■ Routinely clean or change the indoor air filter. Should the indoor coil become dirty, thus restricting airflow, call a qualified service person to clean the coil surface.
■ An annual inspection by a qualified person should be performed to ensure continued quality performance.
A. Dehumidify LEDB. Dehumidify resistor
DEHUMIDIFY
CUT TO ENABLE
COOLHEATADJUST
NORM ABCD
ABCD
(+)(–)
TEST
D1A
B
Blower Speed Chart (Variable Speed Motor) for Heat Pump and Cooling Only Models
Model
Nominal Cooling kBtu
Heating Size kW
Motor HP ADJUST Setting
HEAT Setting
COOL Setting CFM A CFM B CFM C CFM D
24 5-10 ¹⁄₃ NORM B B 1,000 800 600 900
30 5-10 ¹⁄₃ NORM A A 1,000 800 600 900
36 5-15 ¹⁄₂ NORM A A 1,200 1,000 800 1,100
42 5-20 ³⁄₄ NORM C C 1,800 1,600 1,400 1,200
48 5-20 ³⁄₄ NORM B B 1,800 1,600 1,400 1,200
60 5-20 ³⁄₄ NORM A A 1,800 1,600 1,400 1,200
12
TROUBLESHOOTINGWiring Connection Diagram—Single Phase Heat Pump (PSC Motor)
208/
230V
-1-6
0
GW
1C
RO
BK
R
Y
R
L1 T1
T2
L2
C HF
Dua
lC
apac
itor
Transformer
CS
R
W
L2L1
BK
BR
PR
R
R
BK
208V
240V
24V
S4
S1
K1
T1
B3
B4
K1-
2
C12
B1
K1-
1
BU
Y
C4
HM
LC
NO
NC
C
P-2
A15
NC
CC
MC
1
BK
CG
XFMR-R
R
XFMR-C
W1 C L R O Y1
Fan
O-O
UT
LO-P
S
DF
HI-
PS
CO
MM
ON
Y1
OU
T
CM
C1
S6
L1
24V
Fus
e
Y
A15
W2
R YBU
W
G
OR
R BU
BU
Y
BU
BK
BK
Def
rost
Con
trol
BU
W
P-1
P-2
P-4
P-6
P-5
Rev
ersi
ngV
alve
Def
rost
The
rmos
tat
Def
rost
Con
trol
Hig
h P
ress
ure
Sw
itch
(if u
sed)
Con
tact
or
Blo
wer
Con
trol
Indo
orB
low
erM
otor
Cap
acito
r
Con
dens
erF
an M
otor
Blo
wer
Con
trol
Com
pres
sor
Con
tact
or
Com
pres
sorCom
pres
sor
Con
tact
or
The
rmos
tat
Blo
wer
Spe
ed C
hart
for
Hea
t Pum
p an
d C
oolin
g O
nly
Mod
els
Uni
tFa
ctor
y sh
ippe
d S
ettin
gsC
oolin
g In
put
(BLK
)24
L (L
ow)
30M
(M
ediu
m)
36H
(H
igh)
42L
(Low
)48
M (
Med
ium
)60
H (
Hig
h)
NO
TE
: No
blow
er s
peed
adj
ustm
ents
are
req
uire
d
13
Wiriing Connection Diagram—Single Phase Heat Pump (Variable Speed Motor)
*
*
Blo
wer
Sp
eed
Ch
art
(Var
iab
le S
pee
d M
oto
r)U
nit
AD
JUS
TH
EA
TC
OO
L24
NO
RM
BB
30N
OR
MA
A36
NO
RM
AA
42N
OR
MC
C48
NO
RM
BB
60N
OR
MA
A
Con
dens
erF
an M
otor
Transformer Y
BU
BU
BU
P-2
K1-
2
Com
pres
sor
Con
tact
or
B4
PRB
R
BK
BK
BK
BK
K1-
1
Com
pres
sor
Con
tact
or
Def
rost
Con
trol
CM
C1
Indo
orB
low
erM
otor
P-1
BK
BK
BK
BK
L1
208/
230V
-1-6
0
Dual CapacitorY
W
R
R
C12
L2T2
T1
L1
Compressor
B1
C
R
SF C H
PC
O(if
use
d)
NC
C
B3
BU24V
240V
208V
R
Rev
ersi
ngV
alve
Hig
hP
ress
ure
Sw
itch
S4
NO
TE
: C
onne
ctio
n m
ust b
e ju
mpe
red
whe
n pr
essu
re s
witc
h is
not
use
d.
Def
rost
Con
trol
CM
C1
Def
rost
The
rmos
tat
S6
P-4
Contactor
Low
Pre
ssur
eS
witc
h
S79
L1
BU
BK
BK
BK
BK
YY Y Y
Y
K1
Fan
O-O
UT
LO-P
S
DF
CO
MM
ON
Y1
OU
T
HI-
PS
24VW
1 C L R O Y1
W BU R OR Y
W
R
P-6
P-5
BU RY
Y RCA13
2
Dia
gnos
ticM
odul
e
The
rmos
tat
S1
GW
1C
RO
YW
2
L2Y
HU
M
R C1
EM
W1
O Y2
Y1
G
ICM
Boa
rdA
54
Y GOR
WBUR
B3
T1
Indo
or B
low
erM
otor
AD
JUS
T
HE
AT
C
OO
LN
OR
M+
TE
ST
A B C D
A B C D
14
Wiring Connection Diagram—Single Phase Cooling Only Models (PSC Motor)
W
G
R
Y
BU
The
rmos
tat
YY
Hig
h P
ress
ure
Sw
itch
(if u
sed)
Y
S4
P -
5
P -
6
S1
CY
RG
W1
Con
tact
or
K1
BU
BUR G
Fus
e
XFMR-R XFMR-C
R
GC
A15
Blo
wer
Con
trol
BU
BU
P -
4
BU
R
Y
W
BK 240V208V
24V
Transformer
BKBK
RP
- 3
A15
Blo
wer
Con
trol
C
NC
NO
CL
MH
B3
C4
Indo
orB
low
erM
otor
Cap
acito
r
Con
dens
erFa
n M
otor
B
4
BK
BK
R
Y
Com
pres
sor
Com
pres
sor
Con
tact
or
R
BR
PR
K1
- 2
P -
2
L2
L2
T2
K1
- 1
Com
pres
sor
Con
tact
or
BK
Dua
l Cap
acito
rC
12
R
SC
CF H
T1
P -
1
B1
208/
230V
- 1
- 6
0
L1
L1 T1
Blo
wer
Spe
ed C
hart
for
Hea
t Pum
p an
d C
oolin
g O
nly
Mod
els
Uni
tFa
ctor
y sh
ippe
d S
ettin
gsC
oolin
g In
put
(BLK
)24
L (L
ow)
30M
(M
ediu
m)
36H
(H
igh)
42L
(Low
)48
M (
Med
ium
)60
H (
Hig
h)
NO
TE
: No
blow
er s
peed
adj
ustm
ents
are
req
uire
d
15
Wiring Connection Diagram—Single Phase Cooling Only Models (Variable Speed Motor)
The
rmos
tat
S1
GW
1C
R
BK
Y
G
W
R
BU
Y
P-6
P-5
BK
BK
S79
S4
Low
Pre
ssur
e S
witc
h(if
use
d)
Hig
h P
ress
ure
Sw
itch
YY
Co
nta
cto
rY
Y BU R
Y RC
A13
2
Dia
gnos
ticM
odul
e
K1
BU
BU
P-4
AD
JUS
T
HE
AT
C
OO
LN
OR
M+
TE
ST
A B C D
A B C D
ICM
Boa
rdA
54
HU
M
R C1
EM
W1
O Y2
Y1
G
B3In
door
Blo
wer
Mot
or
R BU W OR Y G
Transformer
BU24V
240V208V
R
T1
Y
B4
PRBR
BK
BK
BK
BK
K1-
1C
ompr
esso
rC
onta
ctor
Indo
orB
low
er M
otor
P-1
BK
BK
L1
208/
230V
-1-6
0
Dual Capacitor
W
R
RC12
T2T
1L1
Compressor
B1
C
R
SF C H
PC
O(if
use
d)B
3
BK
K1-
1C
ompr
esso
rC
onta
ctor
L2
P-2
YL2
Y
Fac
tory
Sh
ipp
ed S
etti
ng
sU
nit
AD
JUS
TH
EA
TC
OO
L24
NO
RM
BB
30N
OR
MA
A36
NO
RM
AA
42N
OR
MC
C48
NO
RM
BB
60N
OR
MA
A
Typical Low Voltage Connections
NOTE: W1 and W2 can be used to stage electric heat accessory on 15 kw and 20 kw models. The 5 kw, 7.5 kw and 10 kw heater accessories function off of W1 only.
ASSISTANCE OR SERVICEIf you need further assistance, you can write to the below address with any questions or concerns:
Whirlpool® Home Cooling and Heating14610 Breakers DriveJacksonville, FL 32258
Please include a daytime phone number in your correspondence.
AccessoriesTo order accessories ask for the appropriate part number listed below or contact your Whirlpool® Home Cooling and Heating dealer.
R R
CC
YY
W1W1W
G G
W2W2
OO
Without Economizer
Thermostat Outdoor Unit
C C
RR
Y1
Y
WW1W1
G G
Y2
W2W2
O O
Thermostat Outdoor Unit
With Economizer
Economizer
Blue
White
Yellow
Orange
Green
Black
Part Number Accessory Model(s)
48193-001 ALIFT801-1 Lifting Bracket Kit
All
Electric Heater Kits
Cat. No. Model No. Description
Used On
10W47 PHK05BP-1 5 kw Electric Heater Kit All
10W48 PHK07BP-1 7.5 kw Electric Heater Kit All
10W49 PHK10BP-1 10 kw Electric Heater Kit All
10W50 PHK15CP-1 15 kw Electric Heater Kit 36-60
10W51 PHK20CP-1 20 kw Electric Heater Kit 42-60
48373F007© 2007. Whirlpool Corporation All rights reserved.
® Registered trademark/TM Trademark of Whirlpool, U.S.A.All trademarks are owned by their respective companies.
Manufactured under license by Watsco, Inc., Coconut Grove, Florida10/07
Printed in U.S.A.
