GREE GMV5 HR HEAT RECOVERY UNITS
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(3) Oil solenoid valve: This valve can be operated based on its state that is shown through the
monitoring software and actual situation. When this valve is opened, the coil will be heated and
lubricant at both sides of the valve flows.
Step 4:
Test the compressor drive, namely the IPM module, to see whether it is normal.
(1) Disconnect the power supply. Five minutes later, remove the line of the faulty compressor.
(2) Set a multimeter to gear diode. As shown in the figure below, put the black test probe to pad P
(on the left of pad U (BL)) and the red test probe to pad U (BL) (make sure the moisture proof
tape is removed). In normal cases, the multimeter should read 0.39±0.3 V. If it is “0” or infinitely
great, the IPM module is faulty.
Summary of Contents for GC201808-III
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Page 227: ...GREE GMV5 HR HEAT RECOVERY UNITS 223 Troubleshooting ...
Page 286: ...GREE GMV5 HR HEAT RECOVERY UNITS 282 Troubleshooting ...
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