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Component Access & Removal
Model 506 (UC Ice Maker)
Model 506 (UC Ice Maker)
4-14
#3752200 - Revision B - May, 2006
Condenser
The condenser is attached to the base assembly with
screws that pass through the condenser base then are
secured to the unit area base. The condenser fan
shroud is attached to the back of the condenser with
screws passing through the shroud into the rear side
flanges of the condenser. The inlet port of the condens-
er is attached to the compressor discharge line. The
condenser outlet leads to the high-side filter-drier.
To access the condenser, pull out the unit compartment
to access the sealed system components.
1.
Extract screws securing the front deflector to the
side of the condenser.
2. Extract screws securing the fan shroud to the back
of the condenser.
3.
Before removing the condenser, capture the refrig-
erant from the sealed system.
4.
Then, cut the compressor discharge line and drier
inlet line approximately one inch from the condens-
er inlet and outlet ports.
5. Lift the condenser off of the base assembly.
NOTE:
It is not recommended to sweat tubing apart.
Doing so will induce moisture into the sealed system.
Hot Gas Valve
The hot gas valve must be installed vertically as the
valve uses a free plunger that seats by gravity. This
plunger must seat properly for efficient operation of the
ice maker.
If there is a small leak in the valve, the outlet tube from
the valve will feel cold, and may frost up, during the ICE
MAKING cycle. This is caused by the small leak acting
as an orifice for the refrigerant gas.
If there is a medium size leak in the valve, the outlet
tube from the valve will feel warm during the ICE MAK-
ING cycle.
If the outlet tube from the valve is hot during the ICE
MAKING cycle, the hot gas valve is stuck open.
To check:
1. With wire leads removed, use an ohmmeter set on
the R x 100 scale.
2. Check across terminals. the ohmmeter should read
approximately 250 ohms.
3. Attach a 120-volt test cord to the terminals. When
power is supplied to the valve an audible click
should be heard.
Screws
Fan Shroud
Condenser
Figure 4-24. Condenser Components
Figure 4-25. Hot Gas Valve Components
Solenoid Coil
Valve Body
Electrical
Leads
Screw
Filter-Drier
Clamp
Coil Harness
To remove:
1. Before removing the hot gas valve, capture refriger-
ant from the sealed system.
2. Disconnect coil harness from solenoid.
3.
Extract screw from top of solenoid.
4.
With a file, score a line around capillary tubes 1” or
less from valve inlet and outlet tubes, then fatigue
capillary tubes at these lines until they separate.
NOTE:
Whenever servicing the sealed system, the fil-
ter-drier must be replaced.
NOTE:
After capillary tube separates, check tubing for
internal burrs. If burrs exist, repeat step 1 above.
