Water Level Control; How Water Level Control Works; Purpose; To Replace Water Level Control - Cornelius 500-Series Installation And Service Manual

Continuous flow icemaker

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Table Of Contents

Table of Contents

HOW WATER LEVEL CONTROL WORKS

When water is introduced through the inlet fitting the float rises. the float pushes against a lever which in turn

forces the poppet assembly against the inlet fitting valve seat which seals the water off. See Figure 5 Before the

water inlet is sealed the safety switch is operated. In the event of a water failure the float would drop down and

operate the safety switch to shut off the machine.

If water level control will not shut off and seal at level as indicated, be sure inlet pressure does not exceed rec-

ommended factory operating range.

Under ordinary circumstances adjustment should not be necessary providing it was properly adjusted when unit

was installed or relocated. If, however, the control becomes inoperative, repair or replace. See Start-Up Adjust-

ment, page 9.

PURPOSE

1. To automatically maintain proper water level in the evaporator when unit is running and making ice.

2. A safety switch is operated in the event of an interruption in water supply. The switch shuts off the electrical

power to the icemaker and its refrigeration system. Switch will reset as soon as cause of water failure has

been corrected and proper water level in icemaker has again been reached.

3. The transparent bowl not only provides a visible check of water level, but also is a good guide to the inter-

nal conditions which exist within the icemaker assembly itself. (See Cleaning Procedure.)

TO REPLACE WATER LEVEL CONTROL

1. Shut off the water supply. Shut off the main power switch or unplug the ice dispenser from electrical outlet.

2. Remove the flexible tubing from bottom of water level control and drain water from water level control and

evaporator.

3. Remove flexible tubing at bottom of water level bowl connected to the overflow.

4. Hold water inlet fitting with proper tool to prevent it from rotating when disconnecting the water inlet.

5. Remove wing nut holding water control to its mounting bracket. Control can be removed by lifting straight

up.

TO REPLACE WATER LEVEL SAFETY SWITCH

1. Shut off main power switch or unplug the ice dispenser from electrical outlet.

2. Unplug molex connector connecting switch to electrical box.

3. Remove the 2 screws anchoring the water level safety switch to the bottom of the water level control

mounting bracket.