10-8-3. Indoor Unit (Other Parts)
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1 | Room temp. (TA) sensor | Disconnect the connector and measure the resistance value with tester. | ||||||||||||
| Heat exchanger (TC) sensor | (Normal temp.) |
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| Sensor |
| Temperature | 10°C | 20°C | 25°C | 30°C | 40°C |
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| TA, TC (kΩ ) | 20,7 | 12,6 | 10,0 | 7,9 | 4,5 |
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2 | Remote controller | To item of How to judge whether remote controller is good or bad of the | ||||||||||||
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| Judgment of trouble by symptom. |
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3 | Louver motor | Measure the resistance value of each winding coil by using the tester. | ||||||||||||
| MP35EA7 | (Under normal temp. 25°C) |
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| Position |
| Resistance value |
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| Brown | 1 |
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| 1 to 4 |
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| Red | 2 |
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| 1 to 6 |
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| 130 ± 10 | Ω |
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| Orange | 3 |
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| 2 to 3 |
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| Yellow | 4 |
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| Pink | 5 |
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| 2 to 5 |
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| Blue | 6 |
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4 | Indoor fan motor | Since judgment of DC motor is difficult on the single motor, refer to 10- | ||||||||||||
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10-8-4. Outdoor Unit
No. | Part name |
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1 | Compressor | Measure the resistance value of each winding by using the tester. | ||||||||||||
| (Model : |
| Red |
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| Position | Resistance value |
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| Red | - White | 0,51 to 0,57 Ω |
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| White - Black | 0,51 to 0,57 Ω |
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| White | Black |
| Black - Red | 0,51 to 0,57 Ω |
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| Under 20°C | ||||||||
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2 | Outdoor fan motor | Measure the resistance value of winding by using the tester. |
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| Position | Resistance value |
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| 1 Yellow |
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| Yellow- Pink | 5 to 20 k Ω |
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| 4 Pink |
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| 5 Gray |
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| White | Black | For details, refer to Section | |||||||||
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3 | Compressor thermo. Bimetal | Check conduction by using the tester. |
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| type (Model : PW - 2AL) |
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4 | Outdoor temperature sensor | Disconnect the connector, and measure resistance value with the tester. | ||||||||||||
| (TO), discharge temperature | (Normal temperature) |
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| sensor (TD), suction |
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| Temperature |
| 10°C |
| 20°C | 30°C | 40°C | 50°C |
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| outdoor heat exchanger |
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| TD (kΩ ) |
| 105 | 64 | 41 | 27 | 18 |
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| temperature sensor (TE) |
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| TGa : Heat pump model only. |
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| TO, TS, TE : Refer to the TA, TC characteristic table in Indoor (Refer to | ||||||||||||
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– 56 –