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[
IX
Troubleshooting ]
- 303 -
HWE0913A
GB
3. Troubleshooting flow chart for LEV Solenoid valve
(1) LEV
Check whether the electric expansion
valve and the solenoid valve connector
are not disconnected or not loose.
Run the cooling operation or the heating
operation in the system in trouble
(only in one system).
No cooling capacity
No heating capacity
Repair the fault.
Fault is found.
Note 1
NO
Check that LEV1 is fully open.
Check that LEV1 is fully open.
Check that SVA and SVC are ON.
Check that SVA and SVC are OFF.
Cooling or heating operation
Note 2
Heating operation
Check whether LEV3 is controlling
superheat.
Check LEV1.
Check LEV3.
Check SVA and SVC.
Check SVB.
LEV1 is fully open.
Check whether LEV 3 is controlled by
the value of the differential pressure.
LEV1 is fully open.
Note 3
Note 2
Note 3
YES
NO
Cooling operation
Superheat control OK
Differential pressure OK
YES
NO
Check that SVB is OFF.
Check that SVB is ON.
SVA, SVC ON
SVA, SVC OFF
YES
YES
NO
Completed
SVB OFF
SVB ON
YES
YES
YES
YES
NO
NO
NO
NO
NO
Содержание PURY-P120TJMU-A
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Страница 36: ... II Restrictions 27 HWE0913A GB ...
Страница 50: ... II Restrictions 41 41 HWE0913A GB ...
Страница 67: ... 58 II Restrictions GB HWE0913A ...
Страница 69: ... 60 ...
Страница 94: ... III Outdoor Unit Components 85 HWE0913A GB 2 RELAY BOARD RELAY 4 board 3 RELAY BOARD RELAY 10 board ...
Страница 95: ... 86 III Outdoor Unit Components GB HWE0913A ...
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Страница 105: ... 96 IV Remote Controller GB HWE0913A ...
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Страница 124: ... 115 HWE0913A GB VI Refrigerant Circuit 1 Refrigerant Circuit Diagram 117 2 Principal Parts and Functions 126 ...
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Страница 175: ... 166 VII Control GB HWE0913A ...
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Страница 363: ... 354 IX Troubleshooting GB HWE0913A ...
Страница 364: ... 355 HWE0913A GB X LED Monitor Display on the Outdoor Unit Board 1 How to Read the LED on the Service Monitor 357 ...
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