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【Daily Question】Utilities - HVAC - 20191225

2019-12-25View Original

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This post was last edited by hesonchang214 on 2019-12-28 21:03. Pump-type air conditioners have an additional four-way solenoid valve in their cooling system compared to air conditioners with cold-air only functionality; this valve is used to change the direction of the refrigerant flow. It operates in cooling mode during summer and in heating mode during winter, although the positions of the compressor’s suction and exhaust ports remain unchanged. () Answer: Correct

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