Samsung MIM-E03CN Installation Manual page 20

Air to water heat pump

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Wiring works

Backup heater

Connecting a relay or a magnetic contactor for a backup heater (Not Directly connect a backup heater)

1. Connect a "relay or a magnetic contactor" with "CNP003,CNP001,CNP002".

When a backup heater mode is "ON" at 1st step, a control signal of AC 230V goes through CNP003 and CNP001.

When a backup heater mode is "ON" at 2nd step, a control signal of AC 230V goes through CNP003 and CNP002..

1st step

This port can NOT supply enough power for driving a backup heater.

It's just for providing a ON/OFF control signal.

NOTE

Maximum current is 0.5A.

2nd step

Relay or Magnetic Contactor Wire

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