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[5-2 Outdoor Unit Control ]
- 151 -
HWE1314A
GB
5
Cont
rol
5-2-17
Demand Control
Cooling/heating operation can be prohibited (Thermo-OFF) by an external input to the indoor units.
When DIP SW6-8 is set to ON, the 4-step DEMAND control is enabled.
Eight-step demand control is possible in the system with two outdoor units.
For details, refer to the following page(s). [2-4-7 Various Control Methods Using the Signal Input/Output Connector on Outdoor
Unit](page 28)
5-2-18
Control of IH energization without the compressor in operation (not applicable
to the EP500 model)
IH is used to heat the compressor motor on the stopped outdoor unit to make liquid refrigerant in the compressor evaporate
or to keep liquid refrigerant from flooding the compressor.
Initial power on after power is turned on: Stays on for 12 hours, and then transitions to the operation that is performed while
the compressor is stopped
When the compressor is stopped: Stays off for 30 minutes after the compressor stopped, and then repeats the on-off cycle
at 30-minute intervals
5-2-19
Compressor heater control (EP500 model)
When the outdoor unit is stopped, the heater wrapped around the compressor heats up the compressor to evaporate the ac-
cumulated liquid refrigerant and prevent liquid refrigerant accumulating in the compressor.
It is always energized when the compressor is stopped.
Содержание PURY-EP200YLM-A
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Страница 29: ... 1 5 Cautionary notes on installation environment and maintenance 18 HWE1314A GB ...
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Страница 44: ... 2 6 System Connection Example 33 HWE1314A GB 2 Restrictions ...
Страница 58: ... 2 7 Example System with an MA Remote Controller 47 47 HWE1314A GB 2 Restrictions ...
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Страница 125: ... 4 6 BC Controller Circuit Board Components 114 HWE1314A GB 4 6 2 Four Relay Board 4 6 3 Ten Relay Board ...
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Страница 227: ... 6 11 Standard Operation Data Reference Data 216 HWE1314A GB ...
Страница 230: ... 219 HWE1314A GB 7 9 9 Error Code 7113 292 7 9 10 Error Code 7117 293 7 9 11 Error Code 7130 294 ...
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Страница 393: ... 8 16 Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit 382 HWE1314A GB ...
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