100
Part Number STH044 10/13
REPLACING PRESSURE CONTROLS WITHOUT
REMOVING REFRIGERANT CHARGE
This procedure reduces repair time and cost. Use it
when any of the following components require
replacement, and the refrigeration system is
operational and leak-free.
•
Fan cycle control
•
High pressure cut-out control
•
Low pressure control
•
High side service valve
•
Low side service valve
1. Disconnect power to the ice machine.
2. Follow all manufacturer’s instructions supplied
with the pinch-off tool. Position the pinch-off tool
around the tubing as far from the pressure control
as feasible. (See the figure on next page.) Clamp
down on the tubing until the pinch-off is complete.
3. Cut the tubing of the defective component with a
small tubing cutter.
4. Solder the replacement component in place.
Allow the solder joint to cool.
5. Remove the pinch-off tool.
6. Re-round the tubing. Position the flattened tubing
in the proper hole in the pinch-off tool. Tighten the
wing nuts until the block is tight and the tubing is
rounded.
NOTE: The pressure controls will operate normally
once the tubing is re-rounded. Tubing may not re-
round 100%.
Important
This is a required in-warranty repair procedure.
!
Warning
Do not unsolder a defective component. Cut it out of
the system. Do not remove the pinch-off tool until the
new component is securely in place.
Summary of Contents for RNS012
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Page 48: ...40 Part Number STH044 10 13 9 Lift out ice damper ...
Page 49: ...Part Number STH044 10 13 41 10 Lift out ice strainer ramp ...
Page 50: ...42 Part Number STH044 10 13 11 Turn ice wiper counterclockwise to remove ...
Page 56: ...48 Part Number STH044 10 13 19 Remove ice dispensing wheel by lifting straight out ...
Page 57: ...Part Number STH044 10 13 49 20 Water Reservoir Cover Removal A Push up on cover to snap off ...
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