DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE
Instructions to Replace Compressor.
24. After the vacuum process has been finished, close the
valves of the manifold gauges and proceed to connect the
hose from the refrigerant tank to the service line of the
manifold. Open the low pressure valve as well as the tank
valve to charge the refrigerant. Inject the amount specified
in the serial name plate of R-134a refrigerant into the
refrigeration system.
Wait until the pressure readings of the system have
equalized and then turn on the cooler.
25. Unplug the cooler. Pinch the service tubes using a vise
pinch and proceed to remove the manifold gauges and
piercing valve. Check for refrigerant leaks using a leak
detector.
NOTE: To avoid leaks that may originate from Schrader
Valves when installed for service in the future, proceed to
pinch off the tubing using a vise grip and braze it with
oxyacetylene welding. Check for refrigerant leaks using a
leak detector in all the soldered joints.
Summary of Contents for RM-49
Page 1: ...SERVICE MANUAL FOR MODEL RM 49...
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