Amana GSH13024 Installation Manual Page 13
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- TROUBLESHOOTING
- BOOKMARKS
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13
Unit Model Number 5 8 10 15 20
GPH1324M41**
M
(F)
M
(F)
M
(F)
HNA
GPH1330M41**
M
(F)
M
(F)
M
(F)
HNA
GPH/GPC1336M41**
MM
H
(F )
H
(F )
NA
GPH1342M41**
MM
H
(F )
H
(F )
NA
GPH/GPC1348M41**
3
(F )
3
(F)
3
(F )
3
(F)
3
(F)
GPH/GPC1360M41**
3
(F )
3
(F)
3
(F )
3
(F)
3
(F)
GPC1336M43**
--- --- ---
H
(F )
NA
GPC1348M43**
--- --- ---
3
(F)
3
(F)
GPC1360M43**
--- --- --- 3
(F)
3
(F)
GPH1336M43**
MM
H
(F )
H
(F )
NA
GPH1348M43**
3
(F )
3
(F)
3
(F )
3
(F)
3
(F)
GPH1360M43**
3
(F )
3
(F)
3
(F )
3
(F)
3
(F)
*(F) - Factory Setting
3 s
p
eed
(
H
)
i
g
h/
(
M
)
edium/
(
L
)
ow: PSC motor
4 s
p
eed
(
H
)
i
g
h/
(
ML
)
Medium Low/
(
MH
)
Me diu m Hi
g
h/
(
L
)
ow: PSC motor
1/2/3/4/5: EEM motor
Electric Heat KW
Speed Taps Description: H / 4, 5 - High; M / 2, 3 - Medium; L / 1 - Low
MAINTENANCE
WARNING
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING
THIS UNIT.
MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE
TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR
DEATH.
The Self Contained Package Air Conditioner and 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 Troubleshooting Chart
(on page 11) should help in identifying problems if the unit does
not operate properly.
SERVICE
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.
INADEQUATE AIR VOLUME THROUGH INDOOR COIL
When a heat pump is in the heating cycle, the indoor coil is func-
tioning 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 cut out.
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. Air below this temperature will cause low discharge
pressure, thus low suction pressure, and excessive defrost cy-
cling resulting in low heating output. It may also cause false de-
frosting.
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 unit’s defrost terminating sensor must make good thermal
contact with the outdoor coil tubing. Poor contact may not termi-
nate the unit’s defrost cycle quickly enough to prevent the unit from
cutting out on high discharge pressure.
MALFUNCTIONING REVERSING VALVE - THIS MAY BE DUE TO:
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 unit’s solenoid - Check unit voltage. If no
voltage, check wiring circuit.
3. Valve will not shift:
a. Undercharged - check for leaks;
b. Valve Body Damaged - Replace valve;
c. Unit Properly Charged - If 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. 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, cut the unit off and wait until the
discharge and suction pressure equalize, and repeat
above steps. If the valve does not shift, replace it.
- WARRANTY 2
- SHIPPING INSPECTION 3
- REPLACEMENT PARTS 3
- ORDERING P ARTS 3
- SAFETY INSTRUCTIONS 3
- CODES AND REGULATIONS 3
- ROOF CURB INSTALLATIONS O NLY 5
- RIGGING DETAILS 5
- CIRCULATING AIR AND FILTERS 5
- AIRFLOW C ONVERSION 5
- DUCT WORK 6
- CONDENSATE D RAIN 6
- HIGH V OLTAGE W IRING 7
- LOW V OLTAGE W IRING 7
- INTERNAL W IRING 7
- HEAT PUMP START-UP PROCEDURE 8
- FINAL SYSTEM CHECKS 8
- COMPONENTS 8
- HEAT PUMP OPERATION 9
- COOLING CYCLE 9
- HEATING CYCLE 9
- DEFROST C ONTROL 10
- REFRIGERANT CHARGE C HECKS 12
- ELECTRICAL ADJUSTMENTS 12
- HIGH VOLTAGE! 13
- TROUBLESHOOTING CHART 14
- APPENDIX 15
- UNIT DIMENSIONS 15
- MINIMUM CLEARANCES 16
- RECOMMENDED FILTER SIZES 16
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