Ice-O-Matic GEM0956R, GEM1256R, GEM0650R Refrigeration Service, Charging Procedure

Torque Stem to 6-8ft.-lb. Torque Caps to 7-12ft.-lbs

GEM0650/0956/1256 RemoteRefrigeration System Service

Refrigeration Service:

General: This ice machine uses R404A refrigerant and polyolester oil. Do NOT use mineral oil in this refrigeration system.

●When the refrigeration system is serviced, a special liquid line drier is required. It is included with replacement compressors.

●R404A is not compatible with mineral oil so these ice machines use Polyolester oil. Polyolester oil absorbs water very easily. A system opened for service must be re-sealed as soon as possible (15 minutes maximum).

●Special leak detection equipment is required to locate small refrigerant leaks. Usually a leak detector capable of detecting Halongenated refrigerant or HFC-134a will work. Check with the leak detector manufacturer if in doubt.

●Evacuate to 300 microns. ●Liquid charge the system.

Access Valves: To use the access valves:

●Remove the cap from the stem, use a 3/16 inch Allen wrench to check that the valve is CLOSED. Then remove the core cap.

●Close the valve and replace the caps when done. The valve must be closed and the caps tightened.

Charging Procedure

●Extra care must be taken when charging this remote system. No liquid refrigerant may be placed in the system at the compressor. DO NOT use the access valves at the front of the unit for weighing in the charge.

All liquid refrigerant must be weighed into the receiver through the front seated “king valve”.

Receiver Front Seated King Valve

Service Port

Charging Cylinder

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