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Showing posts with the label normally open and normally closed

Time Delay Remote Control of Circulating Pump

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Question: I have a hot water circulating pump: 115V AC 0.4A. I want to be able to turn it on from 3 different locations within the house and have it turn itself off after 2 to 3 minutes. Do you have any equipment which will do this? Answer: We think this product may be you want – Time Delay module (S1DA-AC220-ANT2 & CB-2). The receiver is relay output (normally open and normally closed). Power supply for the receiver and the water pump are different. That means it will not cause electromagnetic interference during water pump operation. With the external extend antenna, the RF signal can pass through walls and doors as well as floors. The wiring diagram is shown below. The water pump will be connected to normally open terminals “B&C”. After wiring, press buttons of “+” and “-” on the timer, adjust delay time from 0 second to 99 hours. “H” is Hour, “M” is Minute, and “S” is Second. As you said, we set 3 minutes. So we set “M 0 3”, it means the delay time is 3 minutes....