Unique WS Series, Руководство по обслуживанию

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WS
Series
Advanced air conditioning systems
10.5 Poor Heating Troubleshooting (Heat Pump).
Symptom Probable Cause Corrective Action
1
Refrigerant flow
failure
1. Refrigerant gas
shortage.
2.
Excessive overcharging
of refrigerant.
3.
Gas leakage.
4.
Clogging of strainer or
capillary tube.
5.
4-Way valve is
defective.
6.
Solenoid 4-Way valve is
defective.
7.
Compressor is defective.
1. Charge refrigerant gas.
2.
Recharge gas.
3.
Repair leakage.
4.
Replace strainer.
5.
Replace 4-Way valve.
6.
Replace solenoid.
7.
Replace compressor.
2 Air circulation
failure.
1. Air filter is clogged
2. Air shutters are closed.
1. Clean air filter.
2. Open air discharge shutters.
3 Heating elements
failure. 1. One or two hating stages
are not operating.
1. a. Check electrical heating elements
(resistance).
b. Check contactors.
c. Check the elements` time delay
fuse.
4
Refrigerant low
pressure. 1. Lack of water flow. 1. Check water filter.