Manitowoc STH042 7/15 Technician's Handbook page 114

7. Close the high side on the manifold gauge set. Add
any remaining vapor charge through the suction
service valve (if necessary).
NOTE: Manifold gauge set must be removed properly to
ensure that no refrigerant contamination or loss occurs.
8. 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. Close the high side service valve at the ice
machine.
C. Open the low side service valve at the ice
machine (when supplied) or disconnect the low
loss fitting from the access valve.
D. 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.
E. Allow the pressures to equalize while the ice
machine is in the freeze cycle.
F. Close the low side service valve at the ice
machine.
9. Remove the hoses from the ice machine and install
the caps.
114 Part Number STH042 7/15