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[
VII
Control ]
(3) Dry operation
Dry operation
Test run mode
ON
Suction temperature
18 C[64 F]
*Note 1
*Note 2
YES
YES
NO
NO
4-way valve OFF
1. Outdoor unit (compressor) intermittent operation
2. Indoor unit fan intermittent operations
(Synchronized with the compressor :
low speed, OFF operations)
Normal operation
Thermostat ON
Thermostat ON
1. Indoor unit fan stop
2. Inverter output 0Hz
3. Indoor LEV, LEV1 Fully closed
4. Solenoid valve OFF
5. Outdoor unit fan stop
6. 52C1 OFF
[1] or [2]
*Note 1. When the indoor unit inlet temperature exceeds 18 C [64 F], the outdoor unit (compressor) and the indoor unit fan
start the intermittent operation simultaneously. When the indoor unit inlet temperature becomes 18 C [64 F] or less,
the fan always runs (at low speed). The outdoor unit, the indoor unit, and the solenoid valve operate in the same
way as they do in the cooling operation when the compressor is turned on.
*Note 2. Thermostat is always kept on during test run mode, and indoor and outdoor unit intermittent operation (ON) time
is a little longer than that of normal operation.
Unit in the stopped state
Содержание PUHY-P168
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Страница 99: ... 90 III Outdoor Unit BC Controller Components 2 RELAY BOARD RELAY 4 board 3 RELAY BOARD RELAY 10 board ...
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Страница 126: ... 117 VI Refrigerant Circuit 1 Refrigerant Circuit Figure 119 2 Principal Parts and Functions 126 ...
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Страница 134: ... 125 VI Refrigerant Circuit 3 CMB P104 and P108NU GB sub TH25 TH22 LEV3a CP Solenoid valves Block Check valves Block ...
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Страница 366: ... 357 IX Troubleshooting ...
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Страница 368: ... 359 X LED monitor display on the outdoor unit board 1 How to read the LED on the service monitor 361 ...
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