6 HANDLING & INSTALLATION
CONDENSATE PAN
INSTALLATION INSTRUCTIONS
MAKE SURE THE CABINET IS DISCONNECTED
FROM ITS POWER SOURCE
1. Remove and discard protective cover over electrical
receptacle on bottom of cabinet
2. Bend down front part of housing. (See above.)
3. Insert condensate evaporator pan assembly into the slide
supports on the underside of the cabinet by pushing
toward back of cabinet until it stops.
4. Plug supply cord into receptacle in underside of cabinet.
5. Bend up front part of housing. Line up slot with rivnut in
cabinet bottom and insert thumbscrew through slot onto
rivnut in cabinet bottom. Insert thumb screw through slot
onto rivnut and tighten.
6. The assembly will now operate when power is supplied to
the cabinet.
7. Inspect rear of cabinet to ensure that the drain line from
the evaporator is properly positioned over the
condensate pan.
On top mount models, allow a minimum of twelve (12)
inches between the top of the cabinet and ceiling and two (2)
inches from the back of the cabinet to the wall, for proper air
circulation through the condensing unit.
(Models with Bottom Mounted Compressor)
Remove the crate base mounting clips located behind the
front grill.Slide the cabinet forward on the crate base to clear
the rear mounting clips.
After removing the crate base, move the cabinet into
location. Make sure the cabinet is level to ensure operation
of the “self-closing” doors.
Allow a minimum of two (2) inches between the back of the
cabinet and the wall for proper air circulation through the
condensing unit.
CABINET STARTUP
Once the cabinet has been located in its permanent location
and the proper power and grounding have been provided,
the following items must be checked or completed:
1. Cut and remove the compressor hold-down band (if
applicable) so the compressor “floats” freely.
2. Check for traces of oil on the compressor pan which could
mean a broken or leaking refrigeration line.
2. UNDER NO CIRCUMSTANCE SHOULD THE
COMPRESSOR BE STARTED WHEN OIL IS PRESENT
UNTIL INSPECTED BY A SERVICE TECHNICIAN.
3. INSPECT THE FACTORY WIRING FOR TERMINALS
THAT MIGHT HAVE VIBRATED LOOSE IN SHIPPING.
TIGHTEN ALL SCREW-TYPE TERMINALS.
4. Check the refrigeration lines to see that they are “free”
and no damage was done during shipping.
5. Check fan blade(s) for “free” operation.
6. Turn on the main power switch. Once 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 e xceed 10% abo v e or
below the rated compressor voltage.
EXAMPLE: If the voltage reads 115 volts with no load and it
drops below 103 volts when the compressor starts, it
may indicate that the supply wiring is too small or that
the wire run is too long.
7. Make sure that the drain line has not been dislodged or
broken during shipping and that the drain trap
terminates properly in the condensate pan or floor drain.
(See Condensate Pan on top mounted compressor.)
8. Listen for any unusual noise such as lines vibrating, etc.
Correct problem by tightening screws, slightly bending
tubing, etc.
9. Check proper tension on doors. (See Door Torque
Adjustment.)
10. NOTE: Allow cabinet to pull down and cycle prior to
loading with product.
11. a 2" clearance must be maintained between the back
wall and product shelving to allow for proper air
movement within the cabinet.
SYSTEM CONTROL/OPERATION
ELECTRO-MECHANICAL
Thermostat Settings
The freezer is shipped from the factory with a thermostat
setting of approximately the mid-point of the operating
range. Final thermostat setting must be made in the field.
Allow the cabinet to operate until the compressor cycles on
the thermostat. The normal operating temperature range for
the refrigerator is:
0°F to -20°F (-17°C to -26°C) for freezer models;
0°F to -40°F (-17°C to -40°C) for low temp. freezer models;
and 5°F to 122°F (-15°C to -50°C) for incubator models
The thermostat is easily adjusted with a standard
screwdriver.
NOTE: DO NOT OPERATE THE CABINET WITH
THERMOSTAT SETTINGS BELOW:
-23°F (-30°C) ON FREEZERS;
-40°F (-40°C) ON LOW TEMP. FREEZERS;
The cabinet thermostat is located on the electrical box (top
mount models) top left hand side of cabinet. It can be
accessed without re4moving the front top panel with the use
of a stepladder, and a screw driver.
Cabinet Operation
(Freezer & Low Temp. Freezer)
There are two thermodiscs located on the evaporator coil.
The purpose of one is to keep the evaporator fan motors
and anti-condensate heater off after defrost cycles until the
coil reaches 32°F (O°C). This prevents moisture from being
pulled down into the product area and provides faster pulldown.The purpose of the other control is to de-energize the
defrost heater and to energize the trip solenoid in the time
clock to terminate the defrost cycle when the fin coil reaches
62°F (17°C).
FIGURE 2