Whirlpool WGPH45 AM Installation manual

INSTALLATION INSTRUCTIONS FOR
PACKAGE HEAT PUMP OR PACKAGE COOLING UNIT
Table of Contents
HEAT PUMP/ELECTRIC COOLING SAFETY...............................1
INSTALLATION REQUIREMENTS ................................................2
Tools and Parts ............................................................................2
Location Requirements ................................................................2
Ductwork Requirements ..............................................................4
Electrical Requirements ...............................................................4
INSTALLATION INSTRUCTIONS ..................................................4
Inspect Shipment .........................................................................4
Place Heat Pump or Air Conditioning Unit in Final Location.......5
Connect Condensate Drain .........................................................5
Install Ductwork............................................................................5
Filters ............................................................................................5
Electric Heat Installation and Adjustment....................................6
Make Electrical Connections .......................................................6
Complete Installation ...................................................................7
SEQUENCE OF OPERATION ........................................................7
Start-up Procedure—Cooling Cycle ............................................7
Start-up Procedure—Heat Pump ................................................8
Final System Checks....................................................................8
Explanation and Guidance—Heat Pump.....................................8
Defrost Cycle................................................................................9
System Troubleshooting ............................................................10
Circulating Air Blower.................................................................11
Blower Performance Data ..........................................................12
CHARGE VERIFICATION .............................................................14
SYSTEM MAINTENANCE ............................................................16
TROUBLESHOOTING ..................................................................17
ASSISTANCE OR SERVICE .........................................................20
Accessories ................................................................................20
HEAT PUMP/ELECTRIC COOLING SAFETY
Recognize this symbol as a safety precaution.
Please adhere to the following warnings and cautions when installing, adjusting, altering, servicing or operating this unit.
ATTENTION INSTALLATION PERSONNEL
Prior to installation, thoroughly familiarize yourself with this installation manual. Observe all safety warnings.
During installation or repair, caution is to be observed.
It is your responsibility to install the product safely and to educate the customer on its safe use.
Recognize Safety Symbols, Words and Labels
The following symbols and labels are used throughout this manual to
indicate immediate or potential hazards.It is the owner’s
responsibility to read and comply with all safety information and
instructions accompanying these symbols. Failure to heed safety
information increases the risk of serious personal injury or death,
property damage and/or product damage.
WARNING
Hazards or unsafe practices could result in property
damage, product damage, severe personal injury or death.
Goodman 1
CAUTION
Hazards or unsafe practices may result in property
damage, product damage, personal injury or death.
Placeho
for Ba
Code
Whirlpool Gold® Models
WGPH45**AM, WPC45**AM
WPIO-362
CAUTION
Goodman 9
Hazards or unsafe practices may result in property
or product damage.
Tradewinds Distributing Company, LLC
14610 Breakers Drive
Jacksonville, FL 32258
WARNING
WARNING
HIGH VOLTAGE!
Goodman
6
Installation and repair of this unit should
be performed ONLY by individuals meeting
the requirements of an “Entry Level Technician”
as specified by the Air-Conditioning, Heating and
Refrigeration Institute (AHRI). Attempting to
install or repair this unit without such background may
result in product damage, personal injury or death.
Goodman 7
WARNING
Do not connect
to or use any device
Goodman
36that is not design-
certified for use with this unit. Serious property damage,
personal injury, reduced unit performance and/or hazardous
conditions may result from the use of such non-approved
devices.
WARNING
Goodman
98
Connecting unit ductwork to unauthorized heat producing
devices such as a fireplace insert, stove, etc., may result
in property damage, fire, carbon monoxide poisoning,
explosion, personal injury or death.
WARNING
This product contains or produces a chemical or
chemicals whichGoodman
may cause serious45
illness or death and
which are known to the State of California to cause
cancer, birth defects or other reproductive harm.
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
WARNING
This unit must not be used as a “construction heater”
Goodman 79
during the finishing phases of construction on a new
structure. This type of use may result in premature failure
of the unit due to extremely low return air temperatures
and exposure to corrosive or very dirty atmospheres.
WARNING
Goodman
37
To prevent the risk of property damage, personal injury, or
death, do not store combustible materials or use gasoline
or other flammable liquids or vapors in the vicinity of this
unit.
IMPORTANT: The United States Environmental Protection
Agency (EPA) has issued various regulations regarding the
introduction and disposal of refrigerants in this unit. Failure to
follow these regulations may harm the environment and can lead
to the imposition of substantial fines. These regulations may vary
by jurisdiction. A certified technician must perform the installation
and service of this product. Should questions arise, contact your
local EPA office.
This product is designed and manufactured to permit installation
in accordance with national codes. It is the installer’s
responsibility to install this unit in accordance with national codes
and/or prevailing local codes and regulations.
INSTALLATION REQUIREMENTS
These 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 air conditioning 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 Parts
Gather the required tools before starting installation. Read and
follow the instructions provided with any tools listed here.
2
Tools needed
■
■
⁵⁄₁₆" nut driver
Screwdriver
■
Tape measure
Parts needed
Check local codes and existing electrical supply. Read “Electrical
Requirements” and “Ductwork Requirements” before purchasing
parts.
Location Requirements
Consider the effect of the outdoor fan noise on conditioned
space and any adjacent occupied space. It is recommended that
the unit be placed so that the condenser air discharge does not
blow toward windows less than 25 ft (7.6 m) away.
Heat pumps require special location consideration in areas of
heavy snow accumulation and/or areas with prolonged
continuous subfreezing temperatures. Heat pump unit bases
have holes under the outdoor coil to permit drainage of defrost
water accumulation. The unit must be situated to allow free
unobstructed drainage of the defrost water and ice. A minimum
2" (5.1 cm) clearance under the outdoor coil is required in milder
climates.
■
Ground Level Preinstallation Details
The ductwork must be placed into the roof curb before
mounting the package unit.
The unit should be set on a solid, level foundation, preferably a
concrete slab at least 4" (10.2 cm) thick. The slab should be
above ground level and surrounded by a graveled area for good
drainage. Any slab used as a unit’s foundation should not adjoin
the building, since it is possible that sound and vibration may be
transmitted to the structure.
Rooftop Preinstallation Details
Roof Curb G 2009 ENV3
Check that the roof is weathertight and allows proper drainage of
condensation. Use steel or treated wood beams as unit support
for load distribution.
NOTE: To ensure proper condensate drainage, the unit must be
installed in a level position.
■ To avoid possible property damage or personal injury, the
roof must have sufficient structural strength to carry the
weight of the unit(s) and snow or water loads as required by
local codes. Consult a structural engineer to determine the
weight capabilities of the roof.
■ The unit may be installed directly on wood floors or on Class
A, Class B, or Class C roof covering material.
■ To avoid possible personal injury, a safe, flat surface for
service personnel should be provided.
Rooftop Installation
Minimum Clearances
Roof Curb Installations Only
NOTES:
■ Sufficient structural support must be determined prior to
locating and mounting the curb and package unit.
■ Curb insulation, cant strips, flashing and general roofing
material are furnished by the contractor.
■ Curbing must be installed in compliance with the National
Roofing Contractors Association Manual.
■ Construct ductwork using current industry guidelines.
The unit is designed to be located outside the building with an
unobstructed condenser air inlet and discharge. Additionally, the
unit must be situated to permit access for service and
installation.
Condenser air enters from 3 sides. Air discharges upward from
the top of the unit. Refrigerant gauge connections are made on
the right-hand side of the unit as you face the compressor
compartment.
Electrical connections can be made on the right-hand side of the
unit. The best and most common application is for the unit to be
located 10" (25.4 cm) from the wall (4" [10.2 cm] minimum) with
the connection side facing the wall. This close-to-the-wall
application minimizes exposed wiring. Close-to-the-wall
application assures free, unobstructed air to the other 2 sides. In
more confined application spaces, such as corners, provide a
minimum 10" (25.4 cm) clearance on all air inlet sides.
Allow 18" (45.7 cm) minimum for service access to the
compressor compartment and controls. The top of the unit
should be completely unobstructed.
If the unit is to be located under an overhang, there should be a
minimum of 36" (91.4 cm) clearance and provisions made to
deflect the warm discharge air out from under the overhang.
3
Down Discharge Applications
Minimum Clearances
10"
(25.4 cm)
A
Cut insulation around bottom openings and remove panels from
the bottom of the unit, saving the screws holding the panels in
place.
NOTE: Single phase models require installation of horizontal duct
kit #20464501PDGK (medium chassis) and #20464502PDGK
(large chassis).
Panel Removal
36"
(91.4 cm)
B
C 36"
(91.4 cm)
36"
(91.4 cm)
A. Wall
B. Unit
C. Curb
B
A
A. Supply air panel
B. Return air panel
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 air conditioning 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 sheltered 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.
Airflow Conversion
Units can easily be converted from horizontal to downflow airflow
delivery. In downflow or high static installations, the installer
should measure the total external static and review the blower
performance charts before performing the installation. In some
installations it will be necessary to change the blower speed to
provide proper airflow.
Horizontal Airflow
Single phase models are shipped without horizontal duct covers.
If needed, these kits may be ordered through your local supplier.
Electrical Requirements
WARNING
HIGH VOLTAGE!
Disconnect ALL power before servicing.
6 be present.
Multiple powerGoodman
sources may
Failure to do so may cause property damage,
personal injury or death.
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 air conditioning 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 INSTRUCTIONS
Be sure to examine the heat pump or air conditioning unit
inside the carton if the carton is damaged.
Inspect Shipment
This heat pump or air conditioning unit is shipped in one
package, completely assembled and wired. The indoor
thermostat and accessories are shipped in a separate carton
when ordered.
■ Check the heat pump or air conditioning unit rating plate to
confirm specifications are as ordered.
■ Upon receipt of heat pump or air conditioning unit, inspect it
for possible shipping damage.
4
■
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 air conditioning unit, since your
claim may be denied.
A
Place Heat Pump or Air Conditioning Unit in
Final Location
F
WARNING
Goodman
109
To prevent property
damage,
the unit should remain in
an upright position during all rigging and moving
operations. To facilitate lifting and moving when a crane
is used, place the unit in an adequate cable sling.
WARNING
To prevent property damage, personal injury or death,
ensure the roof has
sufficient structural
Goodman
110 strength to carry
the weight of the unit(s), roof curb, snow loads and water
loads as required by local codes. Consult a structural
engineer to determine the weight capabilities of the roof.
CAUTION
Goodman
To avoid possible personal
injury, 111
a safe, flat surface for
service personnel should be provided.
IMPORTANT: If you are using a bottom discharge with the roof
curb, the ductwork should be attached to the curb prior to the
installation of the unit.
Lower the unit carefully onto the roof mounting curb. While you
are rigging the unit, the center of gravity will cause the condenser
end of the unit to be lower than the supply air end.
Rigging
B
E
C
D
A. Drain connection
B. 2" (5.1 cm) minimum
C. 3" (7.6 cm) minimum
D. Positive liquid seal (required)
E. Flexible tubing, hose or pipe
F. Unit
Install Ductwork
IMPORTANT:
■ Install ductwork in accordance with NFPA 90B and any local
codes.
■ When the unit is installed so that the supply ducts carry air
circulated by the unit to areas outside the space containing
the unit, the return air shall be handled by a duct or ducts
sealed to the unit casing and terminated outsides the space
containing the unit.
■ If there is no complete return air duct system, the return air
connection must be sealed to the unit casing and run full size
to a location outside the utility room or space housing the unit
to avoid a negative pressure on the venting system.
Filters
Filters are not provided with unit, and must be supplied and
installed in the return duct system 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 quantity of the unit. See the Air
Delivery Table for the recommended filter size.
Air Delivery Table
Nominal Filter Area
sq ft (cm2)
Placeholder for Rigging art
7
(6,503)
6
(5,574)
5
(4,645)
4
(3,716)
3
(2,787)
2
(1,858)
500
Connect Condensate Drain
The condensate drain connection of the evaporator is a half
coupling of ³⁄₄" N.P.T. A ³⁄₄" drain line with trap must be installed
on all applications to avoid accumulation of condensate.
Condensate Drain Connection
■
■
■
Install the condensate drain trap as shown. Use a ³⁄₄" (1.9 cm)
NPT drain connection size or larger.
An external trap must be installed for proper condensate
drainage.
Unit must be level or slightly inclined toward drain.
Dis
p
bl
osa
eF
ilte
r
ilter
ent F
an
Perm
1,000 1,500 2,000 2,500
Airflow - SCFM
3,000 3,500
Minimum Filter Size
Nominal Size—in. (cm)
Nominal Area—sq ft (cm2)
10 x 20 (25.4 x 50.8)
1.4 (1,301)
14 x 20 (35.6 x 50.8)
1.9 (1,765)
14 x 25 (35.6 x 63.5)
2.4 (2,230)
15 x 20 (38.1 x 50.8)
2.1 (1,951)
16 x 20 (40.6 x 50.8)
2.2 (2,044)
16 x 25 (40.6 x 63.5)
2.8 (2,601)
20 x 20 (50.8 x 50.8)
2.8 (2,601)
20 x 25 (50.8 x 63.5)
3.5 (3,252)
25 x 25 (63.5 x 63.5)
4.3 (3,995)
5
Electric Heat Installation and Adjustment
Make Electrical Connections
Wiring
WARNING
Goodman 6 HIGH VOLTAGE!
WARNING
Disconnect ALL power before servicing.
Goodman 6HIGH VOLTAGE!
Multiple power sources may be present.
Disconnect ALL power before servicing.
Failure to do so may cause property damage,
personal injury or death.
Multiple power sources may be present.
This series of electric cooling and heat pump package equipment
is designed to accept a field installed electric heat kit. The unit is
equipped to easily install the HKR Series Electric Heat Kit. Full
installation instructions are included in this kit. Please use this
document for guidance in field equipping the package unit with
electric heat.
Choose the heat kit that fits the application for the specific
installation. Permanently mark the unit’s nameplate with the
model being installed. High and low voltage connections are
detailed in the heat kit instructions.
Indoor blower motor speed tap selection may need to be
modified to accommodate normal continuous operation to
prevent a nuisance trip. See the following charts.
WPC45(24-48) Models
Electric Heat KW
Unit Model Number
5
8
10
15
20
WPC4524AM41
3
3
3
x
x
WPC4530AM41
3
3
3
3
x
WPC4536AM41
3
3
3
3
x
WPC4542AM41
3
3
3
3
x
WPC4548AM41
3
3
3
3
3
All models are factory-shipped at T3 speed.
WGPH45(24-60) Models
Electric Heat KW
Unit Model Number
5
8
10
15
20
WGPH4524AM41
x
x
x
WGPH4530AM41
x
x
x
x
WGPH4536AM41
x
x
x
x
WGPH4543AM41
x
x
x
x
WGPH4549AM41
x
x
x
x
x
WGPH4560AM41
x
x
x
x
x
Failure to do so may cause property damage,
personal injury or death.
All wiring should be made in accordance with the National
Electrical Code (N.E.C). The local power company should be
consulted to determine the availability of sufficient power to
operate the unit. The voltage, frequency and phase at the power
supply should be checked to make sure it corresponds to the
unit’s rated voltage requirement.
Install a branch circuit fused disconnect near the unit, in
accordance with the N.E.C. or local codes. Wire sizes and overcurrent protection should be determined from the unit nameplate
ampacity and in accordance with Branch Circuit Ampacity chart
or the N.E.C. Under no circumstances should wiring be sized
smaller than is recommended by either of these 2 sources.
Branch Circuit
Ampacity
Supply Wire
Length—ft (m)
15
20
25
30
35
40
45
50
200 (61)
6
4
4
4
3
3
2
2
150 (45.7)
8
6
6
4
4
4
3
3
100 (30.5)
10
8
8
6
6
6
4
4
50 (15.2)
14
12
10
10
8
8
6
6
Fuses smaller than that recommended on the wiring diagrams
could result in unnecessary fuse failure or service calls. The use
of protective devices of larger size than indicated could result in
extensive damage to the equipment. The manufacturer bears no
responsibility for damage caused to equipment as result of the
use of larger than is recommended size protective devices.
All units have undergone a run test prior to packaging for
shipment. This equipment has been started at minimum rated
voltage and checked for satisfactory operation. Do not attempt to
operate this unit if the voltage is not within the minimum and
maximum voltages shown on nameplate.
All exterior wiring must be within approved weatherproof conduit.
The unit must be permanently grounded in accordance with local
codes, or in absence of local codes, with N.E.C. ANSI/ NFPA No.
70-1984 or latest edition by using ground lug in the control box.
Fuses or HACR type circuit breakers may be used where codes
permit.
High Voltage Wiring
Single Phase—Connect the 2 leads to terminals L1 and L2 in the
electrical control section, using wire sizes specified in the wiring
table.
6
Low Voltage Wiring
Internal Wiring
■
A diagram detailing the internal wiring of this unit is located on
the electrical box cover. If any of the original wire supplied with
the appliance must be replaced, the wire gauge and insulation
must be the same as the original wiring.
Transformer is wired for 230 volts on the 208/230 models. See
the wiring diagram for 208-volt wiring.
1. Disconnect power.
2. Remove the control access panel.
3. 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.
Heat pumps—Connect 24V wires from the thermostat to the
corresponding wires in the control box using 18 AWG as
follows:
WPC45 Terminal
24-60 Thermostat
Red
R (24V)
Green
G (Fan)
White
W1 (Heat)*
Brown
W2 (Heat)*
Yellow
Y (Cool)
Blue
C (24V Common)
WGPH45
Terminal
24-43 Thermostat
49-60 Thermostat
Red
R (24V)
R (24V)
Green
G (Fan)
G (Fan)
Orange
O (Rev. Valve)
Single Phase Units
■
Connect the field supply wires (L1, L2) to the 2 black pigtail
leads using UL-Listed wire connectors.
O (Rev. Valve)
nd
White
W1 (Heat, 2 )*
W1 (Heat, 2nd)*
Brown
W2 (Heat, 3rd)*
W2 (Heat, 3rd)*
Purple
Not used
Y1 (Low Cool)
Yellow
Y1 (Cool)
Y2 (High Cool)
Blue
C (24V Common)
C (24V Common
*Optional field installed heat connections
NOTES:
■ Thermostats must be set to energize “G” during cooling. This
is default on most all thermostats.
■ WGPH4549 and WGPH4560 have 2-stage cooling and
require 2-stage heat/cool with optional 3rd-stage electric heat
thermostat.
Complete Installation
IMPORTANT: 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 which has been under
water.
1. Check that 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 OPERATION
Start-up Procedure—Cooling Cycle
WARNING
Goodman
HIGH6
VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
1. Disconnect power.
2. Turn the thermostat switch to “Cool” and the fan switch to
“Auto.”
3. Set the temperature setting to the highest setting.
4. Verify that all of the registers are set to the normal open
position.
5. Turn on the electrical supply at the disconnect.
6. Turn the fan switch to the “ON” position. The blower should
operate after a 7-second delay.
7. Turn the fan switch to the “Auto” position. The blower should
stop after an approximate 60-second delay.
8. Slowly lower the cooling temperature until the unit starts. The
compressor, blower and fan should now be operating.
9. Allow the unit to run for 10 minutes. Check that cool air is
being supplied by the unit.
10. Turn the temperature setting to the highest position, stopping
the unit. The indoor blower will continue to run for
approximately 60 seconds.
11. Turn the thermostat switch to “OFF” and disconnect all
power when servicing the unit.
7
Start-up Procedure—Heat Pump
WARNING
Goodman
HIGH6
VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
1. Check that the cooling mode for the heat pump is working
properly according to the procedure listed in the “Start-up
Procedure—Cooling Cycle” section.
■ The reversing valve is energized when the thermostat is
placed in the cooling position.
■
A clicking sound should be noticeable from the reversing
valve.
■
By lowering the temperature setting to call for cooling, the
contactor is energized.
■
The compressor, blower and fan should then be running.
2. After the cooling mode is checked out, turn the thermostat
system switch to “OFF.”
3. Turn the thermostat switch to “HEAT” and the fan switch to
“AUTO.”
4. Slowly raise the heating temperature setting. When the
heating 1st stage makes contact, stop raising the temperature
setting. The compressor, blower and fan should now be
running with the reversing valve in the deenergized (heating)
position.
5. After giving the unit time to settle out, check that the unit is
supplying heated air.
6. If the outdoor ambient is above 80°F (26.7ºC), the unit may
trip on its high pressure cutout when on heating. The
compressor should stop.
7. The heating cycle must be thoroughly checked, so postpone
the test to another day when conditions are more suitable.
IMPORTANT: Be sure to test the unit.
8. If the outdoor ambient is low and the unit operates properly
on the heating cycle, you may check the pressure cutout
operation by blocking off the indoor return air until the unit
trips.
9. If the unit operates properly in the heating cycle, raise the
temperature setting until the heating 2nd stage makes contact.
Supplemental resistance heat, if installed, should now turn
on. Check that the supplemental resistant heat operates
properly.
NOTES:
■
WGPH4549-60 has 2 stages of compressor heat. During
the resistance heat test, increase the temperature setting
until the 3rd-stage heat is energized.
■
If outdoor thermostats are installed, the outdoor ambient
temperature must be below the set point of these
thermostats for the heaters to operate. It may be
necessary to jumper these thermostats to check heater
operation if outdoor ambient temperature is mild.
10. For thermostats with an emergency heat switch, raise the
temperature setting until the heating 2nd stage makes contact.
NOTE: The emergency heat switch is located at the bottom
of the thermostat. Move the switch to emergency heat. The
heat pump will stop, the blower will continue to run, all
heaters will come on, and the thermostat emergency heat
light will turn on.
8
11. If the unit is being checked in the wintertime when the
outdoor coil is cold enough to activate the defrost control,
observe at least one defrost cycle to make sure the unit
defrosts completely.
Final System Checks
1. Check that all supply and return air grilles are adjusted and
the air distribution system is balanced for the best
compromise between heating and cooling.
2. Check for air leaks in the ductwork. See “Airflow
Measurement and Adjustment” and “Checking Charge.”
3. Check that the unit is free of “rattles,” and the tubing in the
unit is free from excessive vibration.
4. Check that the tubes and lines are not rubbing against each
other or against the sheet metal surfaces or edges. If contact
is found, correct the problem.
5. Set the thermostat at the appropriate setting for cooling and
heating or automatic changeover for normal use.
6. Check that the owner is instructed on the unit operation, filter,
servicing, correct thermostat operation, etc.
7. The previous sections are recommended to serve as an
indication that the unit will operate normally.
Explanation and Guidance—Heat Pump
When the heat pump is in the cooling cycle, the heat pump
operates exactly as an air conditioning unit.
The heat pump operates in the heating cycle by redirecting
refrigerant flow through the refrigerant circuit external to the
compressor. This is accomplished through the reversing valve.
Hot discharge vapor from the compressor is directed to the
indoor coil (evaporator on the cooling cycle) where the heat is
removed, and the vapor condenses to a liquid. It then goes
through the expansion device to the outdoor coil (condenser on
the cooling cycle) where the liquid is evaporated, and the vapor
goes to the compressor.
When the solenoid valve coil is operated either from heating to
cooling or cooling to heating, the piston in the reversing valve to
the low pressure (high pressure) reverses position in the reversing
valve.
The following illustrations show a schematic of a heat pump on
the cooling cycle and the heating cycle. In addition to a reversing
valve, a heat pump is equipped with an expansion device and
check valve for the indoor coil, and similar equipment for the
outdoor coil. It is also provided with a defrost control system.
The expansion devices are flowrator distributors and perform the
same function on the heating cycle as on the cooling cycle. The
flowrator distributors also act as check valves to allow for the
reverse of refrigerant flow.
When the heat pump is on the heating cycle, the outdoor coil is
functioning as an evaporator. The temperature of the refrigerant
in the outdoor coil must be below the temperature of the outdoor
air in order to extract heat from the air. Thus, the greater the
difference in the outdoor temperature and the outdoor coil
temperature, the greater the heating capacity of the heat pump.
This phenomenon is a characteristic of a heat pump. It is a good
practice to provide supplementary heat for all heat pump
installations in areas where the temperature drops below 45°F
(7.2ºC). It is also a good practice to provide sufficient
supplementary heat to handle the entire heating requirement
should there be a component failure of the heat pump, such as a
compressor, refrigerant leak, etc.
Since the temperature of the refrigerant in the outdoor coil on the
heating cycle is generally below the freezing point, frost forms on
the surfaces of the outdoor coil under certain weather conditions.
Therefore, it is necessary to reverse the flow of the refrigerant to
provide hot gas in the outdoor coil to melt the frost accumulation.
This is accomplished by reversing the heat pump to the cooling
cycle. At the same time, the outdoor fan stops to hasten the
temperature rise of the outdoor coil and lessen the time required
for defrosting. The indoor blower continues to run, and the
supplementary heaters are energized.
Cooling Cycle
C
D
B
A
E
F
C
G
H
H
C
J
I
J
B
A. Evaporator
B. Service valves
C. Service ports
D. Reversing valve
E. Condenser
F. Accumulator
G. Compressor
H. Distributors
K
I. Indoor coil
J. Check valve orifices
K. Outdoor coil
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 Control
During operation, the power to the circuit board is controlled by a
temperature sensor, which is clamped to a feeder tube entering
the outdoor coil. Defrost timing periods of 30, 60 and 90 minutes
may be selected by connecting the circuit board jumper to 30,
60 and 90, respectively. Accumulation of time for the timing
period selected starts when the sensor closes (approximately
34°F [1ºC]), and when the wall thermostat calls for heat. At the
end of the timing period, the unit’s defrost cycle will be initiated
provided the sensor remains closed. When the sensor opens
(approximately 60°F [16ºC]), the defrost cycle is terminated and
the timing period is reset. If the defrost cycle is not terminated
due to the sensor temperature, a 10-minute override interrupts
the unit’s defrost period.
Circuit Board
DF2
TEST
Heating Cycle
Jumper Wire
C
D
B
A
E
90 A
60
30
DF1
C
Y
W2
R
R DFT
F
Suggested Field Testing/Troubleshooting
1. Run the unit in the heating mode (room thermostat calling for
heat).
2. Check the unit for proper charge.
NOTE: Bands of frost on the condenser coil indicate low
refrigerant charge.
G
H
H
C
I
J
A. Condenser
B. Service valves
C. Service ports
D. Reversing valve
J
B
E. Evaporator
F. Accumulator
G. Compressor
H. Distributors
K
I. Indoor coil
J. Check valve orifices
K. Outdoor coil
Defrost Cycle
If 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.
3. Turn off power to the unit.
4. Disconnect the outdoor fan by removing the purple lead from
“DF2” on the defrost control.
5. Restart the unit and allow frost to accumulate.
6. After a few minutes of operation, the defrost thermostat
should close. To verify this, check for 24 volts between “DFT”
and “C” on the control board. If the temperature at the
thermostat is less than 28°F (-2ºC) and the thermostat is
open, replace the defrost thermostat, since it is defective.
7. When the defrost thermostat has closed, short the test pins
on the circuit board until the reversing valve shifts, indicating
defrost. This should take up to 21 seconds depending on
what timing period the control is set.
NOTE: After defrost initiation, the short must instantly be
removed, or the unit’s defrost period will last only 2.3 seconds.
8. After the defrost thermostat has terminated, check the
defrost thermostat for 24 volts between “DFT” and “C.” The
reading should indicate 0 volts (open sensor).
9. Turn off power to the unit.
10. Replace the outdoor fan motor lead to terminal “DF2” on the
circuit board and turn on power.
9
System Troubleshooting
Symptom
Possible Cause
Remedy
High head—low suction
■
Restriction in liquid line or flowrator
■
Remove or replace with proper size flowrator.
High head—high or normal
suction
■
Dirty condenser coil
Overcharged
Condenser fan not running
■
Clean coil.
Correct system charge.
Repair or replace condenser fan.
Incorrect flowrator
Defective compressor valves
Flowrator not seating properly
■
Power off or loose electrical connection
Thermostat out of calibration; set too
high
Defective contactor
Blown fuses or tripped circuit breaker
Transformer defective
High or low pressure control (optional)
open
Compressor overload contacts open
■
■
■
Low head—high suction
■
■
■
Unit will not run.
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
Replace with correct flowrator.
Replace compressor.
Check for debris under flowrator or deformed flowrator.
Remove debris or replace flowrator.
Check for unit voltage at contactor in unit.
Reset thermostat.
Check for 24 volts at contactor coil. Replace if contacts
are open.
Replace fuse or reset circuit breaker. Check wiring.
Replace transformer.
Reset high pressure control or check unit charge.
High pressure control opens at 610 psig, and low
pressure control opens at 22 psig.
■
Replace compressor.
NOTE: Wait at least 2 hours for overload to reset.
■
■
Loose connection
Compressor stuck
Grounded or open winding
Open internal overload
Low voltage connection
Capacitor weak, open or shorted
Check for unit voltage at compressor.
Check and tighten all connections.
Wait at least 2 hours for overload to reset. If still open,
replace the compressor.
At compressor terminals, voltage must be within 10%
of nameplate volts when unit is operating.
Check capacitor. Replace if defective.
Low suction—Cool
compressor, iced evaporator
coil
■
Low indoor airflow
■
Compressor short cycles
■
Condenser fan runs;
compressor does not run.
■
■
■
■
■
■
■
■
■
■
■
Defective overload protector
Unit cycling on low pressure control
High pressure switch cuts out
■
Low airflow
■
■
Registers sweat
■
■
■
■
High suction pressure
■
■
■
Insufficient cooling
■
■
■
■
Excessive load
Defective compressor
Reversing valve not seating properly.
■
Improperly sized unit
Improper airflow
Incorrect refrigerant charge.
Incorrect voltage
■
■
■
■
■
■
Evaporator coil freezing or
frosting
■
■
■
10
Low airflow
Low refrigerant charge
Operating unit in cooling mode below
65ºF (18ºC) outdoor temperature
■
■
■
Increase speed of blower or reduce restriction.
Replace air filters.
Replace overload protector. Check for correct voltage.
Check refrigerant charge and/or airflow.
Check airflow (indoor and outdoor)
Increase speed of blower or reduce restriction.
Replace air filters.
Recheck load calculation
Replace compressor.
Replace reversing valve.
Recalculate load.
Check airflow—should be approximately 400 CFM per
ton.
Charge per procedure attached to unit service panel.
At compressor terminals, voltage must be within 10%
of nameplate volts when unit is operating.
Check airflow—should be approximately 400 CFM per
ton.
Properly charge unit.
Install or check low ambient control—should be open
below 65ºF (18ºC) outdoor temperature.
Circulating Air Blower
WARNING
HIGH VOLTAGE!
6
Disconnect ALLGoodman
power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
Airflow Measurement and Adjustment
Please review the ductwork section before proceeding with the
airflow measurements and adjustments in this section.
The unit blower curves (see Specification Sheets) are based on
the external static pressure (ESP per in./W.C.). The duct openings
on the unit are considered internal static pressure. As long as
ESP is maintained, the unit will deliver the proper air up to the
maximum static pressure listed for the CFM required by the
application (for example, home, building, etc.).
In general, 400 CFM per ton of cooling capacity is a rule of
thumb. Some applications depending on the sensible and latent
capacity requirements may need only 350 CFM or up to 425 CFM
per ton. Check condition space load requirements (from load
calculations) and equipment expanded ratings data to match
CFM and capacity.
After the unit is set and the ductwork completed, verify the ESP
with a 1" (2.5 cm) inclined manometer with pitot tubes or a
Magnahelic gauge and confirm CFM to blower curves in the
Specification Sheets. All units have 3-speed blower motors. If the
low speed is not utilized, the speed tap can be changed to
medium or high speed.
NOTE: Never run CFM below 350 CFM per ton. Evaporator
freezing or poor unit performance is possible.
Adjusting Speed Tap for Indoor Blower Motor
X-13 Motor
Adjust the CFM by changing the 24V low voltage lead at the
speed terminal block on the motor. (T1—Low Speed, T2 and
T3—Medium Speed, T4 and T5—High Speed).
NOTE: Factory set T1 (G, Fan), T2 (Cool/High cool), T3 (W2 Electric
Heat), T4 and T5 reserved for high static (Cool/High Cool) and W2.
ECM Motor Speed Adjustment
Each ECM blower motor has been preprogrammed for operation
at 4 distinct airflow levels when operating in Cooling/ Heat Pump
mode or Electric Heat mode. These 4 distinct levels may also be
adjusted slightly lower or higher if desired.
The adjustment between levels and the trim adjustments are
made by changing the DIP switch(s) either to an OFF or ON
position. See Blower Performance Data charts.
WGPH45 DIP Switch Functions
The ECM motor has an electronic control that contains
8 2-position DIP switches. The function of these DIP switches is
shown in the following chart.
DIP Switch Number
Function
1
2
Electric Heat
3
N/A
4
Indoor Thermostat
5
Cooling and Heat Pump CFM
6
7
CFM Trim Adjust
8
For WGPH4524-43 models, DIP Switch 4 must be set to ON. DIP
Switch 4 must be set to OFF for 2-stage compressor models
WGPH4549-60. DIP Switch 4 ON energizes Y1 signal to the ECM
motor anytime Y/Y2 is energized. The indoor motor will not
operate properly if switch is not set correctly for the model.
WGPH CFM Delivery and Adjustments
See “Circulating Air Blower” for CFM output, adjustments and
DIP switch settings.
WGPH Thermostat Fan Only Mode
During Fan Only operations, the CFM output is 50% of the
high-stage cooling setting.
WGPH Humidity Control
When using a Humidistat (normally closed), cut jumper PJ6 on
the control board. The Humidistat will affect both low-stage and
high-stage cooling airflow by adjusting the airflow to 85%.
ECM Motor
The ECM control board is factory-set with the DIP Switch 4 in the
“ON” position for single stage units and to the "OFF" position for
the 2-stage units. All other DIP switches are factory-set in the
“OFF” position. For most applications, the settings are to be
changed according to the electric heat size.
The ECM motor provides many features not available on the
traditional PSC motor. These features include:
■ Improved Efficiency
■ Constant CFM
■ Soft Start and Stop
■ Improved Humidity Control
WGPH 2-Stage Heating
When using staged electric heat, cut jumper PJ4 on the control
board.
WGPH Thermostat Wiring
Use the thermostat wiring diagrams provided with the thermostat
when making these connections.
11
Blower Performance Data
E.S.P. (In. of H2O)
Model
Speed
Volts—230
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
WPC4524AM
T1 (G)
CFM
882
808
727
649
545
-
-
-
Watts
82
86
92
102
108
-
-
-
T2/T3
T4/T5
WPC4530AM
T1 (G)
T2/T3
T4/T5
WPC4536AM
T1 (G)
T2/T3
T4/T5
WPC4542AM
T1
T2/T3
T4/T5
WPC4548AM
T1
T2/T3
T4/T5
CFM
933
873
810
733
637
584
-
-
Watts
93
103
109
120
126
135
-
-
CFM
1,058
1,012
945
896
816
723
672
-
Watts
124
136
142
153
168
172
179
-
CFM
893
824
752
665
575
-
-
-
Watts
87
95
101
111
115
-
-
-
CFM
1,132
1,070
1,011
959
889
827
733
669
Watts
153
162
168
179
184
195
206
208
CFM
1,287
1,236
1,165
1,123
1,066
1,012
958
857
Watts
211
217
228
239
244
255
265
272
CFM
852
764
711
592
545
-
-
-
Watts
80
82
86
95
99
-
-
-
CFM
1,232
1,190
1,131
1,082
1,023
996
889
819
Watts
202
214
221
229
235
246
258
264
CFM
1,267
1,213
1,162
1,120
1,058
1,009
932
841
Watts
218
226
236
245
247
260
272
275
CFM
1,123
1,070
1,025
984
942
894
839
774
Watts
162
170
182
193
204
216
229
242
CFM
1,437
1,390
1,354
1,318
1,281
1,243
1,204
1,165
Watts
310
317
331
342
355
366
377
389
CFM
1,528
1,490
1,450
1,410
1,383
1,348
1,312
1,267
Watts
372
379
391
403
416
427
439
451
CFM
1,199
1,138
1,085
1,017
957
889
820
755
Watts
162
173
185
193
211
219
232
245
CFM
1,799
1,745
1,698
1,658
1,610
1,560
1,522
1,450
Watts
480
493
508
521
531
545
550
547
CFM
1,921
1,865
1,818
1,780
1,719
1,667
1,579
1,183
Watts
582
585
602
625
627
621
595
569
NOTES:
■ Data shown is dry coil. Wet coil pressure drop is
approximately 0.2" H20, for 3-row indoor coil; and 0.3" H20,
for 4-row indoor coil.
■ Data shown does not include filter pressure drop,
approximately 0.08" H2O.
■ All models should run no less than 350 CFM/Ton.
■ Reduce airflow by 2% for 208-volt operation.
WGPH4524AM
Cooling/HP Adjust
Speed
Tap
CFM*
Electric
Heat
Adjust
Tap
CFM*
D
Minus
630
D
Minus
630
D
Normal
700
D
Normal
700
D
Plus
770
D
Plus
770
WGPH4524AM
Cooling/HP Adjust
Speed
Tap
CFM*
Electric
Heat
Adjust
Tap
CFM*
C
Minus
743
C
Minus
743
C
Normal
825
C
Normal
825
C
Plus
908
C
Plus
908
B
Minus
855
B
Minus
855
B
Normal
950
B
Normal
950
B
Plus
1,045
B
Plus
1,045
A
Minus
945
A
Minus
945
A
Normal
1,050
A
Normal
1,050
A
Plus
1,155
A
Plus
1,155
*At 0.1 to 0.5 ESP
12
WGPH4530AM, WGPH4536AM
WGPH4560AM
Cooling/HP Adjust
Speed
Tap
CFM*
Electric
Heat
Adjust
Tap
CFM*
Cooling/HP Adjust
Speed
Tap
CFM*
Electric
Heat
Adjust
Tap
CFM*
D
Minus
720
D
Minus
720
D
Minus
1,260
D
Minus
1,260
D
Normal
800
D
Normal
800
D
Normal
1,400
D
Normal
1,400
D
Plus
880
D
Plus
880
D
Plus
1,540
D
Plus
1,540
C
Minus
900
C
Minus
900
C
Minus
1,440
C
Minus
1,440
C
Normal
1,000
C
Normal
1,000
C
Normal
1,600
C
Normal
1,600
C
Plus
1,100
C
Plus
1,100
C
Plus
1,760
C
Plus
1,760
B
Minus
990
B
Minus
990
B
Minus
1,620
B
Minus
1,620
B
Normal
1,100
B
Normal
1,100
B
Normal
1,800
B
Normal
1,800
B
Plus
1,210
B
Plus
1,210
B
Plus
1,980
B
Plus
1,980
A
Minus
1,125
A
Minus
1,125
A
Minus
1,800
A
Minus
1,800
A
Normal
1,250
A
Normal
1,250
A
Normal
2,000
A
Normal
2,000
A
Plus
1,375
A
Plus
1,375
A
Plus
2,200
A
Plus
2,200
*At 0.1 to 0.5 ESP
*At 0.1 to 0.5 ESP
WGPH4543AM, WGPH4549AM
CFM Output for DIP Switch Combinations 1 and 2—
Electric Heat
Cooling/HP Adjust
Speed
Tap
CFM*
Electric
Heat
Adjust
Tap
CFM*
D
Minus
1,103
D
Minus
1,103
D
Normal
1,225
D
Normal
1,225
D
Plus***
1,348
D
Plus
1,348
C
Minus**
1,260
C
Minus**
1,260
C
Normal
1,400
C
Normal
1,400
C
Plus
1,540
C
Plus
1,540
B
Minus
1,530
B
Minus
1,530
B
Normal
1,700
B
Normal
1,700
B
Plus
1,870
B
Plus
1,870
A
Minus
1,620
A
Minus
1,620
A
Normal
1,800
A
Normal
1,800
A
Plus
1,980
A
Plus***
1,980
*At 0.1 to 0.5 ESP
**Denotes factory setting for WGPH4543AM
***Denotes factory setting for WGPH4549AM
Model
Speed
Tap
Switch 1 Switch 2
Electric
Heat—CFM
WGPH4524
A
Off
Off
1,050(F)
B
1,400
Off
950
WGPH4530
WGPH4536
WGPH4543
WGPH4549
WGPH4560
(F)
C
Off
On
825
D
On
On
700
A
Off
Off
1,250(F)
B
On
Off
1,100
C
Off
On
1,000
D
On
On
800
A
Off
Off
1,250(F)
B
On
Off
1,100
C
Off
On
1,000
D
On
On
800
A
Off
Off
1,800
B
On
Off
1,700
C
Off
On
1,400(F)
D
On
On
1,225
A
Off
Off
1,800
B
On
Off
1,700
C
Off
On
1,400
D
On
On
1,225(F)
A
Off
Off
2,000(F)
B
On
Off
1,800
C
Off
On
1,600
D
On
On
1,400
Factory setting
13
CFM Output for DIP Switch Combinations 5 and 6—
Cooling/Heating
CFM Output for DIP Switch Combinations 5 and 6—
Cooling/Heating
Model
Speed
Tap
Switch 5 Switch 6
Cooling/
HP—CFM
Model
Speed
Tap
Switch 5 Switch 6
Cooling/
HP—CFM
WGPH4524
A
Off
Off
1,050(F)
WGPH4543
A
Off
Off
1,800
B
1,400
Off
950
B
On
Off
1,700
C
Off
On
825
C
Off
On
1,400(F)
WGPH4530
WGPH4536
D
On
On
1,225
A
Off
Off
1,800
1,100
B
On
Off
1,700
On
1,000
C
Off
On
1,400
On
On
800
D
On
On
1,225(F)
A
Off
Off
1,250(F)
A
Off
Off
2,000(F)
B
On
Off
1,100
B
On
Off
1,800
C
Off
On
1,000
C
Off
On
1,600
D
On
On
800
D
On
On
1,400
D
On
On
700
A
Off
Off
1,250(F)
B
On
Off
C
Off
D
WGPH4549
WGPH4560
(F)
Factory setting
DIP Switch Settings for Single- and 2-Stage Thermostats
Model
Switch 3
Switch 4
Thermostat
WGPH45**
N/A
On
Single-Stage
N/A
Off
2-Stage
Adjustments Through DIP Switch Combinations 7 and 8
CFM
Switch 7
Switch 8
+10%
On
Off
Normal
Off
Off
-10%
Off
On
CHARGE VERIFICATION
Determine Superheat
1. Read suction pressure.
3. Read suction line temperature.
2. Determine Saturated Suction Temperature from tables or
4. Use the following formula to determine Superheat.
pressure gauge saturated temperature scale (R-410A).
Superheat = Suction Line Temperature - Saturated Suction Temperature
Saturated Suction Pressure Temperature
Suction Pressure
Saturated Suction Temperature ºF
Suction Pressure
Saturated Suction Temperature ºF
PSIG
R-410A
PSIG
R-410A
50
1
78
20
52
3
80
21
54
4
85
24
56
6
90
26
58
7
95
29
60
8
100
31
62
10
110
36
64
11
120
41
66
13
130
45
68
14
140
49
14
Saturated Suction Pressure Temperature
Suction Pressure
Saturated Suction Temperature ºF
Suction Pressure
Saturated Suction Temperature ºF
PSIG
R-410A
PSIG
R-410A
70
15
150
53
72
16
160
56
74
17
170
60
76
19
Subcooling = Saturated Line Temperature - Liquid Line Temperature
Saturated Liquid Pressure Temperature
Liquid Pressure
Saturated Liquid Temperature ºF
Liquid Pressure
Saturated Liquid Temperature ºF
PSIG
R-410A
PSIG
R-410A
200
70
375
112
210
73
405
118
220
76
415
119
225
78
425
121
235
80
435
123
245
83
445
125
255
85
475
130
265
88
500
134
275
90
525
138
285
92
550
142
295
95
575
145
305
97
600
149
325
101
625
152
355
108
Single Speed Application—WPC45
1. Purge the gauge lines.
2. Connect the service gauge manifold to the access fittings.
Run the system for at least 10 minutes to allow the pressure
to stabilize.
3. Temporarily install a thermometer on the liquid (small) line
near the liquid line access fitting with adequate contact and
insulate for best possible reading.
4. Check subcooling and superheat. Systems with TXV
application should have a subcooling of 10 + 2°F and
superheat of 15ºF to 18ºF.
a) If subcooling and superheat are low, adjust TXV to 15ºF to
18ºF, and then check subcooling.
b) If subcooling is low and superheat is high, add charge to
raise subcooling to 10ºF ± 2ºF then check superheat.
c) If subcooling and superheat are high, adjust TXV valve to
15ºF to 18ºF, and then check subcooling.
d) If subcooling is high and superheat is low, adjust TXV
valve to 15ºG to 18ºF superheat and remove charge to
lower the subcooling to 10ºF ± 2ºF.
NOTES:
■ The TXV should not be adjusted at light load conditions of
55ºF (13ºC) to 60ºF (16ºC). Under such conditions, only the
subcooling can be evaluated. This is because the suction
pressure is dependent upon the indoor airflow and the wet
bulb temperature.
■ Do not adjust the charge based on the suction pressure
unless there is a gross undercharge.
5. Disconnect the manifold set. Installation is complete.
2-Speed Application—WGPH45
Run the unit on low-stage cooling for 10 minutes until the
refrigerant pressures stabilize. Follow the guidelines and methods
below to check the unit operation and ensure that the refrigerant
charge is within limits. Charge the unit on low stage.
1. Purge the gauge lines.
2. Connect the service gauge manifold to the access fittings.
Run the system for at least 10 minutes to allow the pressure
to stabilize.
3. Temporarily install a thermometer on the liquid (small) line
near the liquid line access fitting with adequate contact and
insulate for best possible reading.
4. Check subcooling and superheat. The 2-stage systems
running on low stage with TXV application should have a
subcooling of 5ºF to 7ºF and superheat of 15ºF to 18ºF.
a) If subcooling and superheat are low, adjust TXV to 15ºF to
18ºF superheat, then check subcooling.
NOTE: To adjust superheat, turn the valve stem clockwise
to increase and counterclockwise to decrease.
b) If subcooling is low and superheat is high, add charge to
raise subcooling to 5ºF to 7ºF, and then check superheat.
c) If subcooling and superheat are high, adjust TXV valve to
15ºF to 18ºF superheat, and then check subcooling.
d) If subcooling is high and superheat is low, adjust TXV
valve to 15ºF to 18ºF superheat and remove charge to
lower the subcooling to 5ºF to 7ºF.
NOTE: Do not adjust the charge based on the suction
pressure unless there is a gross undercharge.
5. Disconnect the manifold set. Installation is complete.
15
Refrigerant Charge Check—Units with Fixed
Orifice Devices
After completing the airflow measurements and adjustments, the
unit’s refrigerant charge must be checked. The unit comes
factory-charged, but this charge is based on 325 CFM per ton
and a minimum ESP per ARI test conditions (generally between
0.15 to 0.25 ESP). When air quantity or ESP is different than
above, the refrigerant charge must be adjusted to the proper
amount.
All package units with fixed orifice devices are charged using the
superheat method at the compressor suction line.
For charging in the warmer months, 8ºF ± 3ºF superheat at the
compressor is required at conditions 95ºF (35ºC) outdoor
ambient (dry bulb) temperature, 80ºF (27ºC) dry bulb/67ºF (19ºC)
wet bulb indoor ambient, approximately 50% humidity. This
superheat varies when conditions vary from the conditions
described.
After superheat is adjusted, it is recommended that the
subcooling be checked at the condenser coil liquid line out. In
most operating conditions, 10ºF to 15ºF of sub-cooling is
adequate.
SYSTEM MAINTENANCE
WARNING
■
Outside Air Into Return Duct
Do not introduce cold outside air into the return duct of a heat
pump installation. Do not allow air entering the indoor coil to
drop below 65°F (18ºC). Air below this temperature will cause
low discharge pressure, thus low suction pressure, and
excessive defrost cycling resulting in low heating output. It
may also cause false defrosting.
■
Undercharge
An undercharged heat pump on the heating cycle will cause
low discharge pressure resulting in low suction pressure and
frost accumulation on the outdoor coil.
■
Poor “Terminating” Sensor Contact
The defrost terminating sensor must make good thermal
contact with the outdoor coil tubing. Poor contact may not
terminate the defrost cycle quickly enough to prevent the unit
from cutting out on high discharge pressure.
■
Malfunctioning Reversing Valve
This may be due to:
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Goodman 6
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
The self-contained package air conditioner or heat pump should
operate for many years without excessive service calls if the unit
is installed properly. However, it is recommended that the
homeowner inspect the unit before a seasonal start-up. The coils
should be free of debris, so adequate airflow is achieved. The
return and supply registers should be free of any obstructions.
The filters should be cleaned or replaced.
These few steps will help to keep the product up time to a
maximum. The System Troubleshooting chart should help in
identifying problems if the unit does not operate properly.
Service
NOTE: The following information is for use by qualified service
agency only. Others should not attempt to service this
equipment.
Common Causes of Unsatisfactory Operation of Heat
Pump on the Heating Cycle.
■
16
Inadequate Air Volume Through Indoor Coil
When a heat pump is in the heating cycle, the indoor coil is
functioning as a condenser. The return air filter must always
be clean, and sufficient air volume must pass through the
indoor coil to prevent excessive discharge pressure, and high
pressure cutout.
1. Solenoid not energized—In order to determine if the
solenoid is energized, touch the nut that holds the
solenoid cover in place with a screwdriver. If the nut
magnetically holds the screwdriver, the solenoid is
energized and the unit is in the cooling cycle.
2. No voltage at the solenoid—Check unit voltage. If no
voltage, check wiring circuit.
3. Valve will not shift—If the unit is undercharged, check for
leaks. If valve body damaged, replace valve. If unit is
properly charged, and it is on the heating cycle, raise the
discharge pressure by restricting airflow through the
indoor coil. If the valve does not shift, tap it lightly on both
ends with a screwdriver handle.
NOTE: Do not tap the valve body.
If the unit is on the cooling cycle, raise the discharge
pressure by restricting airflow through the outdoor coil. If
the valve does not shift after the above attempts, turn off
the unit and wait until the discharge and suction pressure
equalize, and repeat above steps. If the valve does not
shift, replace it.
TROUBLESHOOTING
Wiring Diagram—WGPH45(24-43)AM
WARNING
Goodman 6 Long
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage, personal injury or death.
NOTE: Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
NOTE #2
R
BK
PR
PR
1
2
3
C
208
TR
240
BU
BK
BU
24V
R
T2
Y
BU
BU
C
BK
BK
2
0
8
2
4
0
/
1
/
L2
R
T1
See NOTE 4
L1
BK
BU
Y
GND
R
60
C
OR
LVJB
OR
Y
See NOTE 5
R
O
BK
Y
R
Y
BR
W
LVDR
W
W2
W
2 4 VAC
3
6
9
2
5
8
1
4
7
H EATER
F
W1 W2 C R Y1
C
R
THER MO STAT
RCCF
Y
R
R
HUMIDISTAT
Y1/Y2
HUM
R
BR
W
BR
OR
BU
E/W1W/W2O OTCOT1OT2 C R Y1 G
DF1
DF2
HEATPUMP
H
DFT
D IP S W IT C H
PLF
BK
R
HVDR
1 2 3 4 5 6 7 8
BU
ON
R
V S TB
O FF
R
W1
W2
O
C
R
OU TDO OR
O
BU
COND EN SER
Y
R
R
R YCON
COMO W2 ED
DC
G
Y1
R
G
PR
Y
++
T
h
e
r
m
o
s
t
a
t
SA (If Used
See NOTE 3
BR
PR
R R
R
BU
BK
BK
Y
Y
Y
BU
Control
Box
S C R
VSM
16-Pin
Plug
DFT
CM
BK BK
LPS
HPS
COMP
RVC
L1
R
R
C
N
4
5
6
PLF
Factory Wiring
Placeholder for Wiring Diagram
Component Legend
T1
C
G
G
C
COM
3
C
T2
RCCF
F
NOTE #3
H
L
DFT
208-240
2
24V
Supply Voltage
208-240/1/60
Y1
R
Y1
COMP
Y2
YCON
S
W1
S.A.
W1
NOTE #2
O
Thermostat
O
O
W2
W2
O
R
W2
If Used
VSM
DFT
NOTE #2
G
LVDR
VSTB
R
DF1
C
CM
Y
RVC
HVDR
(High Volt)
TR
1
DC
C
DF2
C
LPS
C
Line Voltage
Low Voltage
CM
Optional High Voltage COMP
DC
Field Wiring
DFT
High Voltage
GND
Low Voltage
HPS
Symbol Color
HVDR
LPS
Black
BK
LVDR
Blue
BU
LVJB
Brown
BR
PLF
Green
G
RVC
Orange
OR
RCCF
Purple
PR
SA
Red
R
TR
White
W
VSM
Yellow
Y
VSTB
Contactor
Condenser Motor
Compressor
Defrost Control
Defrost Thermostat
Equipment Ground
High Pressure Switch
High Voltage Defrost Relay
Low Pressure Switch
Low Voltage Defrost Relay
Low Voltage Junction Box
Female Plug Connector
Reversing Valve Coil
Run Capacitor for Compressor and Fan
Start Assist
Transformer
Variable Speed Motor
Variable Speed Terminal Block
L2
HPS
NOTES:
1. Replacement wire must be the same size and the same type
insulation as original (at least 105ºC). Use copper conductor
only.
2. To change the evaporator motor speed, move the white and
yellow leads from the EM “2” and “3” to “4” and “5.” If both
leads are energized, the higher speed setting is used.
3. For 208-volt transformer operation, move the purple wires
from Terminal 3 to Terminal 2 on the transformer.
4. Start assist factor equipped, when required.
5. Use copper conductors only.
++ Use N.E.C. Class 2 wire.
17
Wiring Diagram—WGPH45(49-60)AM
WARNING
Goodman 6 Long
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage, personal injury or death.
NOTE: Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
NOTE #2
R
BK
PR
PR
1
2
3
C
208
TR
240
BU
BU
24V
BK
BU
R
T2
Y
BU
BU
C
BK
BK
2
0
8
2
4
0
/
1
/
L2
R
T1
See NOTE 4
L1
BK
BU
Y
Y
R
GND
60
C
OR
OR
Y
R
O
Y
BK
Y
R
BR
W
W
W2
W
2 4 VAC
3
6
9
2
5
8
1
4
7
W1 W2 C R Y1
F
R
THER MO STAT
RCCF
Y
R
R
HUMIDISTAT
Y1/Y2
HUM
R
BR
W
BR
OR
BU
E/W1W/W2O OTCOT1OT2 C R Y1 G
DF1
DF2
C
HEATPUMP
H
DFT
D IP S W IT C H
PLF
BK
R
HVDR
1 2 3 4 5 6 7 8
BU
ON
R
V S TB
O FF
R
H EATER
LVDR
OU TDO OR
O
LVJB
See NOTES
5&6
BU
COND ENSER
Y
R
R
R YCON
COMO W2 ED
DC
R
PR
G
PR
Y
W1
W2
O
C
R
Y1
G
Y2
++
T
h
e
r
m
o
s
t
a
t
SA (If Used)
See NOTE 3
BR
PR
R R
R
BK
BK
VSM
DFT
CM
BK BK
Y
BU
HPS
LPS
COMP
BU
RVC
Control
Box
S C R
Y
16-Pin
Plug
BU
Y
Y
SOL
L1
R
R
C
N
4
5
6
PLF
Factory Wiring
Placeholder for Wiring Diagram
Component Legend
T1
C
G
C
COM
3
C
F
T2
RCCF
NOTE #3
H
L
DF1
C
TR
1
CM
Y
RVC
DC
C
S0L
HVDR
(High Voltage)
DFT
208-240
2
24V
Thermostat
Supply Voltage
208-240/1/60
G
R
Y1
COMP
Y1
S
Y2
YCON
S.A.
W1
NOTE #2
W1
O
O
W2
W2
O
O
R
W2
If Used
VSM
DFT
NOTE #2
G
LVDR
VSTB
R
DF2
C
LPS
C
Line Voltage
Low Voltage
CM
Optional High Voltage COMP
DC
Field Wiring
DFT
High Voltage
GND
Low Voltage
HPS
HVDR
Symbol Color
LPS
Black
BK
LVDR
Blue
BU
LVJB
Brown
BR
PLF
Green
G
RVC
Orange
OR
RCCF
Purple
PR
SA
Red
R
TR
White
W
VSM
Yellow
Y
VSTB
Contactor
Condenser Motor
Compressor
Defrost Control
Defrost Thermostat
Equipment Ground
High Pressure Switch
High Voltage Defrost Relay
Low Pressure Switch
Low Voltage Defrost Relay
Low Voltage Junction Box
Female Plug Connector
Reversing Valve Coil
Run Capacitor for Compressor and Fan
Start Assist
Transformer
Variable Speed Motor
Variable Speed Terminal Block
L2
HPS
NOTES:
1. Replacement wire must be the same size and the same type
insulation as original (at least 105ºC). Use copper conductor
only.
2. For 208-volt transformer operation, move the purple wires
from Terminal 3 to Terminal 2 on the transformer.
18
3.
4.
++
5.
6.
Start assist factor equipped, when required.
Use copper conductors only.
Use N.E.C. Class 2 wire.
Set DIP Switch 4 on VSTB to Off position.
Refer to installation instructions for fan speed settings.
Wiring Diagram—WPC45**AM
WARNING
Goodman 6 Long
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage, personal injury or death.
NOTE: Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
NOTE #3
PR
BK
PR
1
2
3
C
208
TR
240
PR
BU
BK
BU
24V
R
T2
BU
C
BK
BK
2
0
8
2
4
0
/
1
/
L2
R
T1
See NOTE 5
L1
Y
R
BK
GND
G
G
60
R
R
PR
R
Y
LVJB
BR
W
BU
Y
BU
H
G
F
C
RCCF
Y
R
G
W
PLF
3
6
9
2
5
8
1
4
7
BR
Y
R
G
W
Y
R
G
W1
BR
BU
W2
C
++
BR
SA (If Used)
See NOTE 4
BK
PR
R
PR BR BK
G
C L G N
1 2 3 4 5
T
h
e
r
m
o
s
t
a
t
BK
BU/PK
BU/PK
Control
Box
Y
S C R
HPS
CM
EM
COMP
See NOTE 2
L1
C
N
4
5
6
PLF
Factory Wiring
Placeholder for Wiring Diagram
1
T1
C
3
3
C
F
T2
RCCF
NOTE #4
H
L
208-240
2
24V
W1
Y
Thermostat
W2
Supply Voltage
208-240/1/60
R
S
2
COMP
S.A.
If Used
EM
NOTE #2
G
NOTE #3
R
C
TR
1
2
CM
C
3
1 EM C
HPS
G
C
Contactor
Condenser Motor
Compressor
Defrost Control
Defrost Thermostat
Equipment Ground
High Pressure Switch
High Voltage Defrost Relay
Low Pressure Switch
Low Voltage Defrost Relay
Low Voltage Junction Box
Female Plug Connector
Reversing Valve Coil
Run Capacitor for Compressor and Fan
Start Assist
Transformer
Variable Speed Motor
Variable Speed Terminal Block
L2
See NOTE #2
NOTES:
1. Replacement wire must be the same size and the same type
insulation as original (at least 105ºC). Use copper conductor
only.
2. To change the evaporator motor speed, move the white and
yellow leads from the EM “2” and “3” to “4” and “5.” If both
leads are energized, the higher speed setting is used.
Component Legend
C
Line Voltage
Low Voltage
CM
Optional High Voltage COMP
DC
Field Wiring
DFT
High Voltage
GND
Low Voltage
HPS
Symbol Color
HVDR
LPS
Black
BK
LVDR
Blue
BU
LVJB
Brown
BR
PLF
Green
G
RVC
Orange
OR
RCCF
Purple
PR
SA
Red
R
TR
White
W
VSM
Yellow
Y
VSTB
BU/PK Blue/Pink
3. For 208-volt transformer operation, move the purple wires
from Terminal 3 to Terminal 2 on the transformer.
4. Start assist factor equipped, when required.
5. Use copper conductors only.
++ Use N.E.C. Class 2 wire
19
ASSISTANCE OR SERVICE
If you need further assistance, you can write to the below
address with any questions or concerns:
Tradewinds Distributing Company, LLC
14610 Breakers Drive
Jacksonville, FL 32258
Accessories
To order accessories, contact your Whirlpool® Home Cooling and
Heating dealer.
Please include a daytime phone number in your correspondence.
WPIO-362
© 2010. All rights reserved.
®Registered Trademark/TM Trademark of Whirlpool, U.S.A.,
Manufactured under license by Tradewinds Distributing Company, LLC, Jacksonville, Florida.
Warranty provided by manufacturer. All other trademarks are owned by their respective companies.
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