Amana APG1624060M41, Руководство по установке

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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.
TROUBLESHOOTING CHART
SYMPTOM
High head - low suction a. Restrict ion in liquid line or
TXV not functioning
a. R emove or replace with proper size TXV.
High head - high or normal suction a. In Cooling: D irty condenser coil a. C lean coil
In Heating: Dirty filter, Dirty indoor coil
b. Overcharged b. C orrect System charge
c. In Cooling: C ondenser fan not running
c. In Heating: Indoor blower not running
c. R epair or Replace
a. Incorrect TXV. a. R eplace with correct TXV
b. Defective compressor valves b. R eplace compressor
c. TXV not functioning properly c. C heck for debris in TXV or deformed TXV.
R emove debris or replace TXV.
d. Incorrect TXV setting d. C heck Super Heat
a. Power off or loose electrical connection a. C heck for unit voltage at contactor in unit
b. Thermostat out of calibration set too high b. R eset
c. Defective contactor c. C heck for 24 volts at contact or coil replace if
contacts are open
d. Blown fuses or t ripped breaker d. R eplace fuse or reset breaker
e. Transformer defective
e.
C heck wiring - replace transformer
f. High or low pressure control open
(Optional)
f. C heck high pressure control or check unit
charge
H igh pressure cont rol opens at 610 psig
Low pressure control opens at 22 psig
g. Compressor overload contacts open g. R eplace compressor
N OTE: Wait at least 2 hours for overload to reset
Condenser fan runs,
compressor doesn't a. Loose connection a. C heck for unit voltage at compressor check &
t ighten all connections
b. Compressor stuck, grounded or open
winding open int ernal overload
b. Wait at least 2 hours for overload to reset If st ill
open, replace the compressor.
c. Low voltage connection c. At compressor terminals, voltage must be within
10 % of nameplate volts when unit is operating
d. Capacit or weak, open, or shorted d. C heck capacit or. If defective, replace.
Low suction - cool compressor a. In Cooling: Low indoor airflow a.
Iced evaporator coil In Heating: Dirty outdoor coil, defective
defrost thermostat , def ective defrost
cont rol board, outdoor fan not running, low
refrigerant charge.
b. Low airflow b. C heck - should be approximately 400 C FM per
t on, dirty air filters, all duct outlets open
c. Low refrigerant charge c. Properly charge unit
d. Operating unit in cooling mode below 65°F
outdoor temperature
d. I nstall or check low ambient control, should be
open below 65°F outdoor temperature
a. Defective overload prot ector a. R eplace - check for correct voltage
b. Unit cycling on low pressure control b. C heck refrigerant charge and / or airflow
c. High pressure switch cuts out c. C heck airflow (indoor & outdoor),
check expansion device
a. a. I ncrease speed of blower or reduce restriction
replace air filters
a. Excessive load a. R echeck load calculation
b. Defective compressor b. R eplace
c. Reversing valve not seating properly. c. R eplace
a. Improperly sized unit a. R ecalculate load
b. Improper airflow b. C heck - should be approximately 400 C FM per ton
c. Incorrect refrigerant charge. c. C harge per procedure attached to unit service
panel
d. Incorrect voltage d. At compressor terminals, voltage must be within
10% of nameplate volts when unit is operating
I ncrease speed of blower or reduce restriction -
replace air filters
Insuff icient cooling
High suction pressure
REMEDY POSSIBLE CAUSE
Compressor short cycles
Registers sweat Low airflow
Low head - high suction
Unit will not run