Motion Sensors and 12V Direct Output Momentary Control Water Heater Recirculation Pump

I want to control a water heater recirculation pump via wireless motion sensors. The pump will activate on a momentary 12 volt pulse. It will need three separate detectors from 3 different locations. They are kitchen, shower room, toilet. When someone enters those places, the water heater recirculation pump begins to work and supply cool water to heater.

We recommend our wireless infrared motion detector and 1 channel momentary 12V receiver (W-01&S1XM-DC12) to you. The wireless infrared motion will detect any movement of area of detection within 10M. In addition, the receiver is designed for momentary mode with 1 channel, which is for one appliance controlling. The designated appliance won’t need to be supplied any power instead of getting power from powered receiver. This unit’s working distance can reach 100M(theoretically).

Here is the receiver and pump motor wiring. Wiring motor to A&B terminals and supply dc power to receiver, and motor will get power from powered receiver.

Operation:

When someone enters into the area of detection, the motion detector will be triggered by any movement. The movement detector will send message to the receiver. When the receiver receives the signal from motion detector, it will activate the water heater pump to supply water to heater.