Master Bilt IM-23GB manual Operation, How To Change Set Points, Manual Defrost

OPERATION

Fan The fan will run constantly except when a defrost is initiated, or when the evaporator temp is above 35oF. When in defrost mode the fan is off until the end of the defrost and the 2 minute drip time has passed. There is 2 minutes delay after a defrost before the fan comes on. The difference of the evaporator and room temperature of more than 9oF will override the fan delay. FAN LED indicator is flashing during 2 minutes drip period.

Defrost The control uses time defrosts with four defrost per day for oil return safety. The defrost timer begins counting on power up. For example, if a defrost is desired at 12 am, 6 am, 12m, and 6 pm then power up the unit at any of those four times.

MANUAL DEFROST

1.Push this DEFROST ”UP/DEFROST” key for more than 5 seconds and a manual defrost will start, if the conditions are correct, the led DEF will light up and the instrument will carry out a defrosting cycle.

2. While in defrost, push and hold the DEFROST key for more than 5 seconds and the controller will end the defrost cycle. The controller will then enter drip mode for 2 minutes. The DEF led is flashing in drip mode.

HOW TO CHANGE SET POINTS

1.Press the P until sp-1 is displayed.

2.Push UP ▲ or DOWN▼ arrows to change the value.

3.To Exit: Press SET + UP ▲ or wait 20 seconds without pressing a key.

NOTE 1: The set value is stored even when the procedure is exited by waiting the time-out to expire.

NOTE 2: Master-Bilt’s SETPOINT is set at a recommended 20°F at the factory.

NOTE 3: If power is turned off to the unit, the set point returns to factory set value.

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