A man wants to use one device to turn on a hot-water circulator in his home for 15 minutes&then has it automatically turn off. He lives in a 2 story wood home&the hot-water circulator is in the basement-maybe a distance of about 30 ft away through drywall&wood flooring.
Wiring program is as follow:
He can connect delayed remote unit to circulator pump. 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.
Operation:
Press big button: Turn on relay (connect B and C, disconnect A and B). After delay time: Turn off relay by itself (disconnect B and C, connect A and B). Press small button: Turn off relay immediately, no need to wait for delay time.
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 his requirement, he can set “M 1 5”, it means the delay time is 15 minutes. After working for 15 minutes, it will be off automatically. Then the circulator pump stops pumping.
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