Hitachi HPS2017004HA, Руководство по обслуживанию

Страница: 41 / 59

Test in resistance.
TOOL: Multimeter.
Test the resistance of the winding. The compressor is fault if the resistance of winding 0(short
circuit)or ∞
（
open circuit
）
Familiar error:
1
）
Compressor motor lock.
2
）
Discharge pressure value approaches static pressure value .
3
）
Compressor motor winding abnormality.
Notes
：
1
）
Don’t put a compressor on its side or turn over.
2) Please assembly the compressor in your air conditioner rapidly after removing the plugs. Don’t place
the comp. In air for along time.
3
）
Avoiding compressor running in reverse caused by connecting electrical wire incorrectly.
4
）
Warning! In case AC voltage is impressed to compressor, the compressor performance will below
because of its rotor magnetic force decreasing.
4. INDUCTANCE
Familiar error:
1
）
Sound abnormality
2
）
Insulation resistance disqualification.
5. STEP MOTOR
5
4
2
1
38
3.CHECKING COMPONENTS