114 Part Number 040005626 5/17REPLACING PRESSURE CONTROLS WITHOUTREMOVING REFRIGERANT CHARGEThis procedure reduces repair time and cost. Use itwhen any of the following components requirereplacement, and the refrigeration system isoperational and leak-free.• Fan cycle control• High pressure cut-out control• High side access valve• Low side access valve1. Disconnect power to the ice machine.2. Follow all manufacturers’ instructions suppliedwith the pinch-off tool. Position the pinch-off toolaround the tubing as far from the pressure controlas feasible. (See the figure on next page.) Clampdown on the tubing until the pinch-off is complete.3. Cut the tubing of the defective component with asmall 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 tubingin the proper hole in the pinch off tool. Tighten thewing nuts until the block is tight and the tubing isrounded.NOTE: The pressure controls will operate normallyonce the tubing is re-rounded. Tubing may notre-round 100%.ImportantThis is a required in-warranty repair procedure.! WarningDo not unsolder a defective component. Cut it outof the system. Do not remove the pinch-off tooluntil the new component is securely in place.
