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Part Number 020007115 06/27/2019
Component Check Procedures
Section 7
REPLACING PRESSURE CONTROLS
Without Removing Refrigerant Charge
Important
This is a required in-warranty repair procedure.
1. Disconnect power.
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.
Clamp down on the tubing until the pinch-off is
complete.
n
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.
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%.
USING PINCH-OFF TOOL
Summary of Contents for Multiplex N2Fusion
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