Operation of the drain pump

How does the drain pump operate?

The drain from the air conditioning unit is received in the tank, where the water level is detected, and it operates in an intermittent mode that repeats the cycle of running and stopping. During normal operation, the following actions are repeated: 1. The drain pump receives the drain from the air conditioning unit, causing the water level in the tank to rise. 2. The float switch in the tank is pushed up by the drain, and when it reaches the operating water level, the pump starts operating and begins to drain. 3. As the water level in the tank drops, the float switch lowers, stopping the operation and halting the drainage. ★ What happens during abnormal conditions? If the pump fails or if the piping beyond the pump becomes clogged, a fault signal is output, and the air conditioning unit is stopped. Since no drain will occur from that point, it prevents water leakage from the air conditioning unit.

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