Johnson Controls HVWHP072B32S - Page 76

3-56
SM-18006
TROUBLESHOOTING
■460VType
1: If the capacitor has high voltage, perform the high voltage discharge work according to Section 4.2.1.1
2
for
208/230VtypeandSection4.2.1.2
2
for460Vtype.
2: Refer to Section 4.2.1.1
2
“TestingInverterParts(208/230VType)”.
3.: Refer to Section 4.2.1.2
2
“TestingInverterParts(460VType)”.
The connections
between inverter PCB (INV)
and reactor (DCL) are correct.
Also, other connections for
inverter PCB (INV) are correct.
Is LED401 on
inverter PCB (INV)
ON after compressor's
relay (RY) turn ON?
Restart operation.
Check wiring and
wire sizes.
Connect it correctly.
Yes
Yes
Check the wiring of
inverter PCB (INV).
1, 2
Yes
Yes
Frequency can
increase higher
than 60Hz.
Compressor stops
immediately.
(lower than 30Hz)
Compressor stops
when frequency
increase. (Approx.
31Hz to 60Hz)
How is
compressor
operation?
Is the DC voltage
over 553V?
Yes
No
No
No
No
Faulty inverter PCB (INV).
Replace it.
1
Faulty inverter PCB (INV)
Replace it.
1
Is the power supply voltage 460V+10%?
Is the power supply voltage more than 391V?
HIGH VOLTAGE
HIGH VOLTAGE
Does the voltage fall
during operation when
other equipment or
devices are powered on?
Yes
No
No