EC Fans & Drives

ECY Series Motor

Wiring Diagrams

ECY-01 Wiring Diagram

ECY-01 motor should be wired so that motor powers ‘on’ when compressor starts its cycle and powers ‘off’ when compressor stops its cycle.

For safety reasons the motor should be wired so that it powers ‘off’ when the door to the cabinet is opened.

ECY-01 Wiring Diagram

Connection Color Assignment/Function
Phase Brown VAC ~ Connect to Phase(L)
Neutral Blue VAC ~ Connect to Neutral(N)

ECY-02 Wiring Diagram

ECY-02 motor should be wired so that motor powers ‘on’ when compressor starts and switches to second speed (trickle) when compressor stops its cycle.

For safety reasons the motor should be wired so that it powers ‘off’ when the door to the cabinet is opened.

ECY-02 Wiring Diagram

Connection Color Assignment/Function
Phase Brown VAC ~ Connect to Phase(L)
Neutral Blue VAC ~ Connect to Neutral(N)
Speed Black Speed Control ~ Second Speed or Reverse Function
Speed 1 ~ Black Wire Disconnected (disabled & isolated)
Speed 2 ~ Black Wire Connected to Brown (enabled)

ECY-03 Wiring Diagram

ECY-03 motor should be wired so that motor powers ‘on’ when compressor starts and switches to variable speed (trickle) when compressor stops its cycle.

For safety reasons the motor should be wired so that it powers ‘off’ when the door to the cabinet is opened.

ECY-03 Wiring Diagram

Connection Color Assignment/Function
Phase Brown VAC ~ Connect to Phase(L)
Neutral Blue VAC ~ Connect to Neutral(N)
Control Red Voltage Output (5VDC/050mA) electrically isolated
White PWM, electrically isolated
Yellow Tacho output, open collector, 2 pulse per revolution, electrically isolated
Black Ground, connection for control interface

Customer Circuit and ECY-03 Internal Motor Circuit

Product Compliance

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