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Ice Maker
Installing Water Supply Line to
Ice Maker
Supply line installation must comply with all applicable
plumbing codes. The ¼" tubing, and any other plumbing
materials required, should be obtained locally.
The ice maker should be connected to a frequently used
cold water line to ensure a fresh water supply. Be sure to
leak test all connections after the water supply has been
turned on.
Water Valve Switch – Water Fill
Volume
The amount of water fill is directly proportional to the
length of time terminals "C-NC" of the water fill switch are
closed. Closing occurs when the switch plunger drops
into a cavity formed in the cam.
Different water valves have different flow rates. For this
reason, anytime a water valve is replaced, the water fill
must be checked and the fill switch must be adjusted if
needed.
The correct water fill volume is 80 to 100 cc. To measure
the fill volume, test-cycle Ice Maker and collect the water.
Measure in a container calibrated in cubic centimeters
(CC), the fill time is 5.0 seconds.
The fill volume is adjusted by increasing or decreasing
the length of time the water fill switch remains closed.
To adjust the water fill switch, first determine how much
water is needed. The adjusting screw is calibrated so
that one complete revolution changes the water fill about
18 cubic centimeters. Turning the screw clockwise
decreases the fill, while turning counterclockwise
increases the fill.
A vertical cold water line should be selected for
the water supply. If a vertical line is not available,
a horizontal line may be used, providing the
connection is on the side or top of the pipe, but
not on the bottom. Scale and foreign material in
the pipe could cause stoppage of water flow if the
connection is on the bottom.
Test Cycling Ice Maker
Operation of the ice maker, water refilling, and controlled
ice storage, require proper functioning and timing of all
components.
Consider the following:
•
Has unit been properly installed and connected to
sources of electrical power and water?
•
Has freezer compartment evaporator pulled down to
temperature?
•
Is the ice maker turned on?
•
Have several ice making cycles been completed to
remove all the air form the water lines?
•
Do the ejector blades make two revolutions per
cycle? Is ice stored on blades after harvest?
•
Is the water solenoid wired in series with the mold
heater?
It may be necessary, on occasion, to test-cycle an ice
maker to check its operation. This can be done on the
repair bench or while mounted in the refrigerated
compartment.
If ice maker is in an operating freezer, take precautions
against the formation of condensate by allowing the cold,
metal components to warm up before removing the front
cover. This can be expedited by cycling the assembly
with the cover in place and the water supply valve closed.
To manually cycle the ice maker, push the on off switch
to the on position then push in harder against the spring
loaded second set of contacts in the switch and hold in
until the hold switch circuit to the motor is completed.
When the motor starts, all components except the ice
maker thermostat should perform normally. Once the ice
maker completes its cycle, if additional testing is neces-
sary you can you can push in on the switch again to start
the ice maker into another cycle.
4-4
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