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Installation & Maintenance
Drain Connection Requirements
The ice maker has a gravity drain. The ideal installation
has a standpipe (1-1/4-in. minimum) installed directly
below the outlet of the drain tube.
Figure 2-4)
The drain tube must run into an open drain standpipe.
The drain tube cannot be "sealed" into the standpipe.
Because the drainage water will probably be very cold,
it may be desirable to insulate the drain standpipe thor-
oughly up to the drain inlet to minimize condensation on
the drain standpipe.
When a drain connection below the ice maker is not
available, a pump may be used to lift the water to an
available drain.
Condensate Pump Kit No. 759064 is no longer avail-
able as a service replacement. If a replacement is
needed, purchase a reliable condensate pump locally
and install Part No. 759014 shunt plug into the ice
machine pump receptacle. The condensate pump can
be installed on the floor directly behind the unit where it
is installed. Install the pump with the discharge tube to
the rear. Run a 5/8-in. I.D. plastic tube from the bin
drain directly into the pump inlet.
How It Works
The pump recommended for use with an undercounter
or freestanding ice maker is a pressure activated, high
speed pump which will lift water (from melting ice and
fill cycles) to a place where it can be disposed of.
The pump installs in the compartment below the ice
maker storage bin and operates on 120VAC 60Hz cur-
rent. It receives the AC power from a receptacle that is
shunted except when the pump is present. Remove the
shunt, and plug pump into receptacle.
The pump connects directly to the drain stub of the stor-
age bin. As the sealed chamber of the pump fills, the
pressure from the water actuates the pressure switch,
and causes the pump to run and pump water from the
chamber.
(See Figure 2-5)
Water exits through the tube leading to the drain and is
prevented from re-entering the chamber by a check
valve in the output fitting on the pump.
The impeller rotates at 3000RPM in a molded housing
designed to prevent cavitation.
The pump is a sealed unit that depends on the weight
of the water accumulating in the drain from the storage
bin to activate it. Make sure pump chamber and lid are
sealed to prevent water leakage, and that all connec-
tions are water tight.
#3752200 - Revision B - May, 2006
Model 506 (UC Ice Maker)
Model 506 (UC Ice Maker)
(See Figure 2-3 and
2-4
RIGHT END VIEW
3/4"
1/4" O.D. Water
Line Compression
Fitting at Water
Valve
7-1/2"
Bend Field Supplied Water Line
To Connect To Water Valve Fitting
Figure 2-3. Water System Connections
BACK VIEW
17-7/8"
34-13/32"
C /
L
7-1/2"
3"
9"
1-1/2"
Figure 2-4. Drain Tube Location
The drain pump has a
pressure switch that
cycles its pump.
To drain
Water line hole
Figure 2-5. Condensate Pump
23-7/8"
Water Inlet
Solenoid
Valve
3-3/4"
4" Long 5/8" I.D. Rubber
Drain Tube - Run to
Open Drain
1-1/4" Min.
Hole for Field
Supplied Water
Line
Add 5/8" I.D.
plastic hose from
drain pump to
drain bin outlet.
Power cord hole
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