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3-88
Check code
Operation cause
[d7]
Protection of low oil level detection
1. Balancing pipe valve (All outdoor units in the identical line)
closed
2. Compressor case oil removal valve closed
3. Miswiring of TK1 sensor/TK2 sensor
4. Refrigerant stagnation in compressor case
5. SVA3, SV3B, SV3C valves error
6. Blockage in oil return circuit of oil separator
7. Blockage in oil tank circuit
[ ]
Refrigerant
stagnation is
detected.
Leakage/Blockage
No blockage
No blockage
YES
NO
YES
YES
NO
YES
YES
YES
NO
NO
Modify refrigerant stagnation
in compressor case, reset the
power supply,and then start
the operation.
Replace oil tank circuit.
Is there blockage in 2-way
valve of all outdoor units in the
identical line (SV3A, SV3C)?
Replace defective part.
(
*
2) Is there blockage in
oil return circuit of oil separator
(Capillary, strainer)?
Replace defective part.
Is there refrigerant stagnation
in compressor case?
(
*
1) Is there leakage of
2-way valve (SV3A, SV3C) or
blockage (SV3B)?
Replace defective part.
Are TK1 and TK2 sensors
correctly connected?
Modify connector connection.
TK1 : CN516
TK2 : CN515
Is compressor case oil
removal valve fully open?
Open compressor case oil
removal valve fully, reset
power supply, and start the
operation.
Open balancing pipe valve fully,
reset power supply, and start
the operation.
Are balancing pipe valves
of all outdoor units fully open
in the identical line?
Содержание MMC-P0151H
Страница 198: ...3 195 108 109 101 102 133 106 131 105 135 128 104 103 111 110 123 116 132 119 120 121 MMY MP06018 ...
Страница 206: ...3 203 108 109 101 102 133 106 131 105 135 128 104 103 111 110 123 116 132 119 120 121 MMY MP0601H8 ...
Страница 214: ...3 211 108 109 101 102 133 106 131 105 135 128 104 103 111 110 123 116 132 119 120 121 MMY MP0601H7 ...
Страница 216: ...TOSHIBA CARRIER CORPORATION 336 TADEHARA FUJI SHI SHIZUOKA KEN 416 8521 JAPAN ...