Manitowoc

CHARGING PROCEDURESImportantThe cha rge i s criti cal o n a ll Man itowoc i cemachines. Use a scale to e nsure the prop ercharge is installed. A quick disconnect is requiredfor the high side connection.1. Be sure the toggle switch is in the OFF position.2. Close the vacuum pump valve and the low sidemanifold gauge valve.3. Open the high side manifold gauge valve.4. Open the refrigerant cylinder and add the properrefrigerant charge (shown on nameplate) throughthe discharge service valve.5. Close the high side on the manifold gauge set.Add any remaining vapor charge through thesuction access fitting (if necessary).6. Let the system “settle” for 2 to 3 minutes.7. Place the toggle switch in the ICE position.NOTE: Manifold gauges must be removed properly toensure that no refrigerant contamination or lossoccurs.8. Make sure that all of the vapor in the charginghoses is drawn into the ice machine beforedisconnecting the charging hoses.A. Run the ice machine in the freeze cycle.B. Verify the refrigerant cylinder valve is closed.C. Open the high and low side valves on themanifold gauge set. Any refrigerant in thelines will be pulled into the low side of thesystem.D. Allow the pressures to equalize while the icemachine is in the freeze cycle.E. Close the high and low side manifold gaugeset.F. Remove the hoses from the ice machine andinstall the caps.Part Number 80-01111-9 7/10 189