Manitowoc Ice QF2300, QF0800, QC0700, QF0400, QF2200 Refrigeration System, Section, 7-18

Refrigeration System Section 7

Remote Charging Procedures (QF2200/QF2300)

1.Be sure the toggle switch is in the OFF position.

2.Close the vacuum pump valve and the low side manifold gauge valve.

3.Open the refrigerant cylinder and add the proper refrigerant charge (shown on nameplate) into the system high side (receiver service valve and discharge line quick-connect fitting).

4.If the high side does not take the entire charge, close the high side on the manifold gauge set. Start the ice machine and add the remaining charge through the suction filter low side service port. Compressor damage can result.

5.Ensure all vapor in charging hoses is drawn into the low side of the system, then disconnect the manifold gauges.

6.Run the ice machine in freeze cycle.

7.Close the receiver service valve in the ice machine head section.

8.Disconnect the manifold gauge set from the liquid line shut-off valve.

9.Open the high and low side valves on the manifold gauge set. Any refrigerant in the lines will be pulled into the low side of the system.

10.Allow the pressures to equalize while the ice machine is in the freeze cycle.

11.Disconnect the manifold gauge set from the suction line shut-off valve.

12.Remove the hoses from the ice machine and install the caps.

NOTE: Check for refrigerant leaks after all valve caps have been installed.

7-18 Revised 8/2003 Part No. 80-1214-3