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MOTOR PULLEY ADJUSTMENT
Before installing the motor pulley, loosen the set screw on the back side of the pulley and
turn the outside jaw of the pulley until it is fully closed. Position the set screw over the
closest flat spot in the thread and then open the outside jaw of the pulley 4 or 5 turns.
Position the set screw over the closest flat spot in the thread and retighten the set screw.
Place the pulley on the motor shaft and tighten the front set screw. The CD21 coolers are
equipped with double groove pulleys.
OVERFLOW PIPE INSTALLATION
Place the rubber washer onto the drain bushing. Slide the bushing through the drain
opening, in the cooler bottom, from the top side. Screw the nut onto the bushing from
under the cooler. Position the overflow tube in the bushing.
CAUTION: DO NOT HOOK THIS COOLER TO A WATER SOFTENER. THIS WILL
WATER CONNECTION
The float mounts in a hole provided in the corner post (down draft) or front panel (side
draft). The water level should remain at least ½" below the top of the overflow tube. A
screw is provided in the float to adjust water level; or the float rod may be bent to adjust
the level.
BLEEDOFF
In hard water areas, a bleed off kit may be installed to dispose of small amounts of
mineralized water, allowing fresh water to replace it.
ELECTRICAL POWER
1. The installation of electrical wiring must conform to all local and federal codes and should be done by a certified
electrician.
2. Connecting the motor and/or pump to the wrong voltage will void the warranty.
Notice to Installer: The motor amperage must be set as close as possible to motor nameplate amps without the pump
running.
WARNING: To avoid risk of electrical shock, disconnect the power before opening or attempting service on this unit.
WARNING: TO REDUCE THE RISK OF FIRE OR SHOCK; DO NOT USE THIS FAN WITH ANY SOLID STATE SPEED
CONTROL DEVICE.
WIRING DIAGRAMS
Three phase; one and two speed. Motor starter to be equipped with overload
relay sized to accommodate motor full load amps.
Motor starters and overloads are not supplied with units.
BLACK
STRIPED
RED
BROWN
PUMP
VOID THE WARRANTY.
1
3
SINGLE SPEED
DIAGRAM
RED
MOTOR
PUMP
3
Reservoir
GREEN
3
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