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Mitsubishi Electric PURY-(E)P200 Service Handbook page 272

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[ IX Troubleshooting ]
1) For the connectors on the board, TH11 and TH12 are connected to CN10, and TH15 and TH16 are connected to CN11. Dis-
connect the connector in trouble, and check the sensor of each number.
2)
Pull out the sensor connector from the I/O board, Do not pull the sensor by holding the lead wire.
Measure the resistance with such as a tester.
Compare the measured value with that of shown in the figure below. When the result is
3) Check the self-diagnosis switch (Outdoor control board SW1).
HWE07130
Measurement data
Liquid inlet temperature
G, GA, HA
Bypass outlet temperature
(Standard / main)
Bypass inlet temperature
Bypass inlet temperature
Bypass outlet temperature
GB, HB
(Sub 1)
Bypass inlet temperature
Bypass outlet temperature
GB, HB
(Sub 2)
Bypass inlet temperature
Symbol
SW1 setting value
1 2 3 4 5 6 7 8 9 10
ON
TH11
1 2 3 4 5 6 7 8 9 10
ON
TH12
1 2 3 4 5 6 7 8 9 10
ON
TH15
1 2 3 4 5 6 7 8 9 10
ON
TH16
1 2 3 4 5 6 7 8 9 10
ON
TH12
1 2 3 4 5 6 7 8 9 10
ON
TH15
1 2 3 4 5 6 7 8 9 10
ON
TH12
1 2 3 4 5 6 7 8 9 10
ON
TH15
- 263 -
10%, it is normal.
GB
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