57
2.Compressor checking
Measure the resistance value of each winding by using the tester.
3.IPM continuity check
Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital
tester to measure the resistance between P and UVWN; UVW and N.
Digital tester
Normal resistance
value
(+)Red
(-)Black
∞
(Several MΩ)
P
N
U
V
W
Digital tester
Normal resistance value
(+)Red
(-)Black
∞
(Several MΩ)
U
N
V
W
Position
Resistance Value
DA110S1C-30FZ
DA130M1C-31FZ
Blue - Red
0.8Ω
(20
℃
)
1.77Ω
(20
℃
)
Blue - Black
Red - Blue
Содержание 38HVM109303P
Страница 12: ...12 5 Wiring Diagram 5 1 Indoor Unit MS11M 09HRFN1 MW0W MS11M 12HRFN1 MV0W MS11M 18HRFN1 MU0W MS11M 24HRFN1 MT0W...
Страница 13: ...13 5 2 Outdoor Unit MOC 09HFN1 MW0W MOC 12HFN1 MV0W MOF 18HFN1 MU0W...
Страница 14: ...14 MOG 24HFN1 MT0W...
Страница 25: ...25 Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage...
Страница 29: ...29 If T4 5 or the compressor starts running the preheating function will stop...
Страница 47: ...47 9 2 2 Indoor outdoor units communication error diagnosis and solution E1...
Страница 48: ...48 9 2 3 Fan speed has been out of control diagnosis and solution E3 E7...
Страница 50: ...50 9 2 4 Open circuit or short circuit of temperature sensors diagnosis and solution E5 E6...
Страница 51: ...51 9 2 5 IPM malfunction or IGBT over strong current protection diagnosis and solution P0...
Страница 52: ...52 9 2 6 Over voltage or over low voltage protection diagnosis and solution P1...
Страница 54: ...54 9 2 9 Inverter compressor drive error diagnosis and solution P4...