Hitachi UTOPIA RAS-4HVRP2E - Checking Procedure for Other Parts

10 Troubleshooting
Checking procedure for main parts
SMGB0136 rev.0 - 07/2021
311
10
10.4.1.4 Checking procedure for other parts
Resistance (Ω)
Part name Model code Resistance (Ω)
Reversing Valve Coil
(4-way solenoid valve)
VHV-01AP552B1
1473
(at 20ºC)
STF-G01AG579A1
950
(at 75ºC)
STF-H01AI1870A1
1800
(at 20ºC)
Compressor
EU1114D9
1.138
(at 75ºC)
EU140XA2
1.138
(at 75ºC)
EU180XA1
1.138
(at 75ºC)
2YC45KXD
0.644
at 20 ºC
EU260X(C1/D2)
0.490/1.650
(at 20 ºC)
E402HHD-36(A/D)2
0.460/1.839
(at 75 ºC)
HB36PHD-(A1/D1)S2
0.434/1.763
(at 75 ºC)
DA50PHD-D1SE2
0.396
(at 75 ºC)
DA65PHD-D1SE2
0.320
(at 75 ºC)
Magnet Contactor FC-0/SP
1150
(at 20ºC)

Checking procedure for the reversing valve
Troubleshooting
Is the connector PCN100 on
PCB1 connected correctly?
Is there output voltage
generated from the
connector PCN100 on
PCB1?
Is the resistance of the
reversing valve coil correct?
Reversing valve is faulty (valve
locking, etc.). Replace it with a
new one.
Yes
No
No
No
Yes
Yes
Connect it correctly.
Reversing valve is faulty
(disconnection, etc.). Replace it
with a new one.
PCB1 is faulty (Faulty reversing
valve circuit, etc.). Replace it
with a new one.
Output voltage
Reversing valve ON Reversing valve OFF
? NOTE
The values may differ depending on testers. Appro-
priate output voltage is 70~339VDC
Test lead (+side) pin 1 pin 3
Test lead (-side) pin 3 pin 1
Range of voltaje 325 VDC 163 VDC