174 Part Number 80-1479-3 7/10
NOTE: Manitowoc recommends using an access
valve core removal and installation tool on the
discharge line quick-connect fitting. This permits
access valve core removal. This allows for faster
evacuation and charging, without removing the
manifold gauge hose.
REMOTE RECOVERY/EVACUATION
1. Place the toggle switch in the OFF position.
2. Install manifold gauges, scale and recovery unit or
two-stage vacuum pump.
3. Open (backseat) the high and low side ice
machine service valves.
4. Open the receiver service valve halfway.
5. Open high and low side on the manifold gauge
set.
6. Perform recovery or evacuation:
A. Recovery: Operate the recovery unit as
directed by the manufacturer’s instructions.
B. Evacuation prior to recharging: Pull the
system down to 500 microns. Then, allow the
pump to run for an additional hour. Turn off
the pump and perform a standing vacuum
leak check.
NOTE: Check for leaks using a halide or electronic
leak detector after charging the ice machine.
7. Follow the Charging Procedures.
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