freezer improperly may jeopardize safety or cause undue
stress or damage to the refrigeration compressors.
Avoid opening the door for extended periods of time since
chamber air will escape rapidly. Room air, which is higher
in humidity, will replace chamber air and may cause frost to
develop in the chamber more rapidly.
4. CABINET INSTALLATION START-UP
Once the cabinet has been placed in its permanent location
and the proper power and grounding have been provided, the
following items must be checked or completed:
1.
Check for traces of oil in the compressor area,
which could mean a broken or leaking refrigeration
line.
*CAUTION:
UNDER NO CIRCUMSTANCES
SHOULD THE COMPRESSOR BE STARTED
WHEN OIL IS PRESENT UNTIL INSPECTED
BY A SERVICE TECHNICIAN.
2.
Inspect the factory wiring for terminals that might
have vibrated loose in shipping. Tighten all screw-
type terminals.
3.
Check the refrigeration lines to insure that they do
not rub and no damage was done during shipping of
the cabinet.
4.
Check fan blade(s) for “free” operation.
5.
When freezer is plugged in and the compressor
starts, the voltage should be checked at the
compressor terminals to determine if there is proper
voltage to the compressor. The voltage should not
exceed the 10% above or below the rated
compressor voltage.
After reading and completing the Safety Considerations,
Installation and Operation section of this manual, you are
now ready to plug in the freezer.
1.
Check for obstructions with fan blades.
2.
Cabinet should not be loaded with product until the
cabinet has operated for 24 hours at the correct
temperature.
Do not exceed the electrical and temperature ratings printed
on the data plate located on the upper left backside of the
cabinet.
*CAUTION:
Improper operation of the cabinet
could result in dangerous conditions. Follow all instructions
and operate within the design limits noted on the data plate.
Now that your cabinet has been trouble checked, run the
cabinet down to storage temperature before loading product.
4.1 Lid Seal
If the lid gasket does not seal along the front edge, relieve
the compression of the gasket along the back edge by
loosening the hinge screws where they attach to the cabinet.
Raise the lid slightly and then retighten the screws.
4.2 Interior Compartment Temperature
The temperature is controlled by a CAL 9500 digital
temperature controller. When you first power up the freezer,
the high stage compressor and fan will start and operate for 3
to 6 minutes before the low stage compressor starts. Pull
down to minimum temperature will take from 3 to 6 hours,
depending on ambient temperature and size of cabinet. The
high stage compressor runs 100% of the time. The low stage
compressor will cycle on and off to maintain the temperature
of the controller setting. Set the control to the desired set
point. To view the set point temperature, press the * and the
UP arrow keys together. To decrease the set point
temperature, press the * and the DOWN arrows keys
together.
Freezers are shipped from the factory with the indicating
digital control programmed for proper operation. All but the
temperature settings may be adjusted. The temperature
sensor is a type
“T”
thermocouple located on the front wall
of the inner-liner.
4.3
Sonalarm
The Sonalarm should be kept in the “OFF” position until the
cabinet temperature has reached the appropriate setting.
When the temperature has been reached, the temperature
alarm should be switched to the “ON” position and is now
ready to operate. It will monitor “temperature rise” and
“power-failure”. The control is factory set to operate the
Sonalarm at approximately 10
°
F (6
°
C) above the set
temperature. No further adjustment is necessary unless a
spread other than this is desired. In the event a temperature
spread of more or less than factory set is desired, refer to
your digital temperature control manual.
5 ELECTRICAL CONNECTIONS
5.1 Wiring
The cabinet must be plugged into a properly grounded
electrical outlet. Electrical connection should be made in
compliance with local codes.
We suggest a separate circuit with a fused disconnect be
installed. To avoid the possibility of an accidental disconnect
