Key Options
Samsung Electronics 411
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Introduction Mode Select Switch
Mixed operation-preventive control is used to prevent the HP (Heat Pump) from sending requests for different cycle operation
modes to the same outdoor unit.
Figure 4. External contact interface module: wiring diagram for auxiliary heat
Heating
cooling cooling In cooling
operation
HP (common in the SAC market)
- Operation of both heating and cooling modes is not possible. Single cycle control is only possible →
※ HR (Heat Recovery) : Operation of both cooling and heating modes is possible (relatively costly)
8-5-4 Application of Mode select Switch
8-5 Applications (cont.)
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