FOR REMOTE ON/OFF CONTROL
To remotely control the On / Off operation of the heater, it is recommended that a DPST switch or relay (by others) be used to break both power legs (white and black wires) connected to the top two terminals of the J5 connector on the control board. See diagram at right.
Use a NC (Normally Closed) relay to turn the booster ON when energizing the relay coil or to turn the booster OFF when de- energizing the relay coil.
Use a NO (Normally Open) relay to turn the booster OFF when energizing the relay coil or to turn the booster ON when de- energizing the relay coil.
Wiring from Contactor, Power Distribution Block, or Transformer
Remote Relay by Customer
Wiring by
Customer
1
2
3 
4
Controller J5 Connector
Red Wire to | Yellow Wire to |
Contactor #2 | Contactor #1 |
FINAL CHECKS
1.Check all connections for tightness.
2.Ensure that all the above steps are completed.
3.Remove the protective outer plastic covering from the sheetmetal shell.
4.After the water is heated for the first time, monitor the water temperature as described in Section III, Quarterly Inspection.
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