Manitowoc QC0700, Руководство техника

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Part Number 80-1230-9 10/10 155
WATER FLOAT VALVE
QF0400/QC0700/QF0800/QF2200/QF2300
FUNCTION
The float valve maintains correct water level during the
Freeze cycle.
It allows the evaporator to drain completely during the
Automatic Shut-Off cycle.
CHECK PROCEDURE
1. Verify water is supplied to the float valve, the
water inlet screen is clean, and the float and float
arm are free moving.
2. Refer to the Energized Parts Chart and verify the
following:

The float valve coil should be energized.

The red water valve LED on the control board is
energized.
3. Check for line voltage at float valve coil. This test
must be performed within 90 seconds of the water
float valve energizing. If no water contacts the
water level probes within 90 seconds, the valve
will de-energize.
Step 3 Check for Line Voltage
Voltage Reading Result
Line Voltage
Replace Solenoid Coil
or
Replace Valve
No Voltage
See
“Control Board Relays”
for further diagnostics.