Continental Scientific Refrigerators and Freezers, Инструкция по эксплуатации

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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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