Hoshizaki FM-300AFE-HC, Service Manual

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[d] FLUSH WATER VALVE
When the Flush Timer operates or the Stop Button is pressed to shut down the icemaker,
the Flush Water Valve will be energized to open and flush out the Evaporator Casing and
Reservoir (21.7V DC).
[e] DRAINING ICEMAKER IN SUBFREEZING CONDITIONS
In winter, the water circuit must be completely
drained out or otherwise protected to prevent
freeze-up and damage before shutting down
the icemaker at night.
1) Close the Water Supply Line Shut-off Valve to stop water supply.
2) Open the Air Shut-off Valve.
3) Press the Stop Button, and drain the Float Tank and Evaporator Casing.
4) Turn off the icemaker.
Before restarting the icemaker:
1. Close the Air Shut-off Valve.
2. Open the Water Supply Line Shut-off Valve.