Sub-Zero UC-15I Service Manual page 57

Model UC-15I (Undercounter Ice Machine)
Sealed System Components
Hot Gas Valve Removal
The hot gas valve is attached to the compressor dis-
charge line, after a T-connector. The outlet of the valve
is the hot gas tube that runs up to the evaporator.
To remove the hot gas valve, first remove the kickplate,
back panel and lower back utility panel, then after cap-
turing the refrigerant from the sealed system (See
Figure 5-32):
1. Disconnect solenoid electrical leads.
2. Using a tube cutter, cut valve inlet and outlet tubes
approximately 1" from valve body.
NOTE: Do not sweat tubing apart. Doing so will
induce moisture into the sealed system.
3. Lift valve assembly from compressor area.
NOTE: Always replace the filter-drier when opening the
sealed system for service.
High-Side Filter-Drier Removal
The high-side filter-drier is attached between the con-
denser outlet and the capillary tube, located behind the
condenser assembly.
To access the high-side filter-drier, To remove the high-
side filter-drier, first remove the kickplate, back panel
and lower back utility panel, then after capturing the
refrigerant from the sealed system (See Figure 5-33):
1. Using a tube cutter, cut drier inlet tube approximate-
ly 1" from drier.
2. Using a file, score a line around the capillary tube
approximately one inch from filter-drier, then fatigue
the capillary tube at this point until it separates.
NOTES:
• Do not sweat tubing apart. Doing so will induce
moisture into the sealed system.
• After capillary tube separates, check tubing for
internal burrs. If burrs exist, repeat step 2.
3. Lift filter-drier from compressor area.
NOTE: Always replace the filter-drier when opening the
sealed system for service.
Solenoid Coil
Figure 5-32. Hot Gas Valve Removal
Figure 5-33. High-Side Filter-Drier Removal
5-15
Component Access / Removal
Cut inlet and
outlet tubes
approximately
1" from hot gas
valve body.
Cut Here
High-Side
Filter-Drier
Cut Here
#7012423 - Revision A - August, 2009