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Model 506 (UC Ice Maker)
Model 506 (UC Ice Maker)
Component Access & Removal
4-9
#3752200 - Revision B - May, 2006
Evaporator
The evaporator freezing plate is located directly behind
the cutter grid assembly.
The evaporator thermostat capillary bulb is attached
to the underneath side of the evaporator plate. At least
8 inches of the thermostat capillary bulb must be bent
into an 'M* shape and attached tight against the bracket
on the bottom side of the evaporator plate.
The capillary tube of the refrigeration sealed system
is soldered directly against the front edge of the evapo-
rator plate. This prevents the ice slab from forming a
lip over the edge.
At least one inch of the thermostat capillary bulb should
be taped to the refrigeration system capillary tube at
the front edge of the evaporator plate. This helps to
shorten the HARVEST cycle.
The upper surface, and side flanges, of evaporator
freezing plate must be free of mineral build-up, and be
smooth and even. A nick or scratch could cause the ice
slab to hang up during the HARVEST cycle.
If evaporator plate is cleaned with a plastic scrubber,
always scrub in the direction of water flow (front to
back). If plate is scratched during cleaning, it will not
hinder the ice slab from sliding off. The evaporator plate
can be dropped for better access.
To drop:
1. Though not necessary, it is recommended that the
bin door be removed for easier access.
2. Remove the cutter grid assembly, water reservoir
pan, and water pump.
3. Remove the thumb screws on the side brackets at
the front of the evaporator plate.
4. Carefully pull the evaporator forward and down.
Be careful not to bend or kink the attached tubing.
The evaporator can be pulled forward to the front
of the bin area where the unit compartment is
pulled forward.
NOTE:
If a component in the refrigeration sealed sys-
tem must be replaced, it is necessary to use an
approved method of accessing the sealed system.
Refer to the Job Aids below to provide information to
determine whether other system components in the
sealed system needs replacing and to provide the
approved method of accessing, servicing and recharg-
ing the sealed system. Refrigerant recovery is also
covered.
4321717 Sweep Charge Procedure for the 90's.
4378421 Refrigerant Recovery Process.
ALL AUTHORIZED SERVICERS MUST UTILIZE A
CFC RECOVERY AND HANDLING PROGRAM
THAT MEETS ALL THE REQUIREMENTS OF
LOCAL, STATE AND FEDERAL LAWS AND REGU-
LATIONS.
Evaporator
Thumbscrew
Side Brackets
Plastic side brackets are attached to the front of each
side of the evaporator freezing plate with thumb screws.
The brackets support the cutter grid, the water reser-
voir, and the evaporator.
Figure 4-15. Evaporator and Side Bracket