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 TM 10-4110-262-13&P
0029 00
Heatsink
The heat sink is located on top of the transformer cover. Use heat sink compound between heat sink and the bridge
rectifier whenever installing/reinstalling a heat sink.
Relays
Power relay
24 VDC supplies control voltage to the compressor contactor, condenser fan motor, evaporator fan relay coil, defrost
solenoid and defrost drain tube heaters.
Compressor Overload Adjust
The compressor overload relay should be set at different levels for operation on 50 and 60 Hz power. The settings
are:
Supply Power
Overload
Frequency (Hz)
Setting (A)
50
12.5
60
15
To adjust the setting:
1. Disconnect power form the ADR-300.
2. Remove the control box cover.
3. Using a screw driver, adjust the overload relay setting by rotating the adjuster screw until the
appropriate overload level lines up with the arrow on the relay face.
4. Replace the control box cover.
5. Reconnect power to the unit.
0029 00-9
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