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Service Manual
TROUBLESHOOTING
Is the supply voltage 208-230V/60Hz+10%
or 460V/60Hz+10% ?
Is the compressor
running current
same as activation
current? *4)
Check
diode module. *3)
Restart operation.
Does it trip soon?
Are the input currents
of three phases nearly
equal? (+3%)
Yes
Yes
Yes
Yes
It trips.
No
No
No
No
No
No (Input currents out of balance.)
It trips
immediately.
Faulty
Good
Check the
compressor.
Check the power
source capacity.
Is there any cause
of instantaneous
voltage drop?
It trips
occasionally.
It trips after a
certain period.
Check the
compressor.
Replace
diode module. *1)
Replace
inverter PCB. *1)
Replace
inverter PCB. *1)
Replace
diode module. *1)
Check the power
supply.
Yes (Input currents nearly equal (+3%).)
Yes
Yes
Yes
No
No
No
Check the capacity
and wiring of the
power source.
Check
diode module. *2)
Replace
inverter PCB. *1)
Faulty
Normal
Check
inverter PCB *1)
Normal
Replace
inverter PCB. *1)
Faulty
In case of 208-230V/60Hz:
Is it 177V or more during operation?
In case of 460V/60Hz:
Is it 391V or more during operation? *1)
In case of 208-230V/60Hz:
Is it 177V or more during operation when other devices are operating?
In case of 460V/60Hz:
Is it 391V or more during operation when other devices are operating?
*1)
Turn OFF power and
disconnect U, V, W from
compressor terminals.
Turn ON #1 of DSW1 on
inverter PCB to cancel
0A detection and restart.
Does it trip?
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Содержание YVAHP072B31S
Страница 2: ......
Страница 10: ...viii Service Manual ...
Страница 16: ......
Страница 17: ...Service Manual 1 1 INSTALLATION 1 Installation ...
Страница 559: ...Service Manual 1 543 INSTALLATION 7 7RXFK DFN WR QLVK WKLV VHWWLQJ The screen returns to the Service Menu screen 7 ...
Страница 577: ...Service Manual 1 561 INSTALLATION 9 Touch Back to return to the Service Menu screen 9 ...
Страница 920: ......
Страница 921: ...Service Manual 2 1 OPERATION 2 Operation ...
Страница 983: ...Service Manual 2 63 OPERATION Clipped Ceiling Type Grille for Front Discharge 2SWLRQDO Decorative Panel 2SWLRQDO ...
Страница 1184: ...2 264 Service Manual OPERATION 7 Touch on Return to Group sel to return to Setting Group Selection 7 ...
Страница 1315: ...Service Manual 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Страница 1425: ...Service Manual 3 111 TROUBLESHOOTING Surge Absorber SA Surge Absorber SA Surge Absorber SA 3RVLWLRQ RI 6XUJH EVRUEHU 9 9 1 1 1 ...
Страница 1461: ...Service Manual 4 1 MAINTENANCE 4 Maintenance ...
Страница 1657: ...Service Manual 5 1 EXTERNAL INPUT OUTPUT AND FUNCTION SETTING 5 External Input Output and Function Setting ...
Страница 1728: ......
Страница 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Страница 1738: ...6 10 Service Manual FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A ft 3 l b ...
Страница 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
Страница 1795: ......
Страница 1796: ... 2015 Johnson Controls Inc SM 15001 ...