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Howard-McCray A Division of HMC Enterprises, LLC.
831 East Cayuga Street • Philadelphia, PA 19124 USA • (215) 464-6800 • (800) 344-8222
Fax (215) 969-4890 • E-Mail: [email protected] 101018
4
CHECK-LIST FOR USE BEFORE START-UP
The following items should be checked, when
applicable to the cabinet:
Make sure that the door gaskets make a proper
seal to the cabinet.
Make sure that all fan motors are properly
plugged in.
Make sure that all fan blades are tight on all fan
motor shafts.
Make sure that the expansion valve sensing bulb
is properly positioned and is tightly secured.
Make sure that all flare nuts are tight.
Make sure that tubing entrance holes both inside
and outside the cabinet are properly sealed.
Make sure that all SEALANT MATERIAL that was
removed from position in the cabinet during
installation and piping is correctly replaced and
seals in a satisfactory manner.
Make sure that all the loose debris in the cabinet
is removed.
Start-Up
1. Electrically energize the cabinet. Check the
supply voltage, must be within +/- 5%. Check the
evaporator fan motors to ensure all are operating
and rotating in the correct direction.
2. Electrically energize the refrigeration system.
Check the supply voltage, must be within +/- 5%.
3. Set and check the Temperature Control
settings (as outlined in the Temperature Control
section below).
4. Verify refrigeration system is operating
properly.
5. Verify proper Defrost operation (as outlined in
the Defrost section).
6. Set the Defrost Time clock to the correct time-
of-day (as outlined in the Defrost Time Clock
section).
7. Verify the proper setting of the Crankcase
Pressure Valve (as outlined in the Crankcase
Pressure Valve section).
Temperature Control
The temperature control, when it leaves the
factory, is set to the normal position, which will
provide a proper average desired temperature
for the cabinet type. The control may have to be
adjusted to satistfy the owner's requirements, or
local conditions.
Temperature in the cabinet is controlled with a
thermostat located in the evaporator housing.
Turning the control selector to the right lowers the
cabinet temperature. Turning the control selector
to the left raises the cabinet temperature. DO
NOT attempt to operate freezer models lower
than 0
o
F. Operating freezer models lower than
0
o
F provides no additional protection to food
products but will result in excessive run time and
possible ice build up on the evaporator.
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