Welbilt Multiplex FreshBlender Service Manual page 80

Component Check Procedures
Self-Contained Charging Procedures


Important
The charge is critical on all Multiplex ice
machines. Use a scale to ensure the proper
charge is installed.
1. Be sure the ice machine is off.
CHARGING CONNECTIONS
2. Close the vacuum pump valve, the low side service
valve, and the low side manifold gauge valve.
3. Open the high side manifold gauge valve.
4. Open the charging cylinder and add the proper
refrigerant charge (shown on nameplate) through the
discharge service valve.
5. Let the system "settle" for 2 to 3 minutes.
6. Close the high side on the manifold gauge set.
7. Press the power button.
8. Add any remaining refrigerant through the suction
service valve (if necessary).
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NOTE: Manifold gauges must be removed properly to
ensure that no refrigerant contamination or loss occurs.
9. Make sure that all of the vapor in the charging hoses is
drawn into the ice machine before disconnecting the
charging hoses.
A. Run the ice machine in freeze cycle.
B. Remove the high side low loss fitting from the
access valve.
C. 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.
D. Allow the pressures to equalize while the ice
machine is in the freeze cycle.
E. Remove the hoses from the ice machine and install
the caps.
Section 7
Part Number REV00 04/08/2020