Continental Refrigerator Refrigerators and Freezers instruction manual Defrost Operation

cabinet temperature. On low-temperature freezers, place a screwdriver into the right thermostat adjustment screw (do not turn the left differential adjustment screw) and turn clockwise for a colder cabinet temperature or counterclockwise for a warmer cabinet temperature. Further adjustments out of the factory design temperature range must be made by a qualified refrigeration mechanic only.

DEFROST OPERATION

All freezer models are equipped with an automatic, electric defrost system consisting of an electric evaporator coil and drain pan heater, automatic electric defrost time clock, defrost high limit switch, and a fan delay switch. The defrost system is time initiated by the time clock and temperature terminated by the high limit switch. The time clock is factory preset for three (3) defrost periods per day at eight (8) hour intervals and a fail safe cut-off time of 32 minutes. These settings should be adequate for most conditions, however, depending upon use and climate conditions a fourth defrost may be required.

The defrost time clock is located in the electrical console box where a window allows access to the timer dial. To set the time of day on the defrost time clock, turn the knob on the center dial of timer face counterclockwise as the arrows indicate until the correct time of day is lined up with the "time" arrow on the upper left corner of the clock (see figure 7). It will be necessary to reset the time of day on the timer if the freezer is turned off or has loss of power. To relocate and/or add a defrost period, simply unscrew the defrost pins located around the outer dial and screw them into the desired time slots (an additional pin is located in a storage slot on the right side of the dial).

Important Note: All freezers have a unique, energy-saving defrost cycle. It is time initiated, temperature terminated, with an automatic, auxiliary time cut-off safety to minimize electrical consumption and provide for the shortest possible heating cycle. This safety time cut-off is factory set at 32 minutes and should not require any further adjustment.

After defrost, the fan delay control prevents the evaporator fans from operating until the evaporator coil has reached a temperature of 0`c (approximately 20 minutes) thus, minimizing warm air circulation inside the cabinet. Therefore, during initial start-up, and after each defrost cycle, the fans will not turn on immediately.

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