Sears KENMORE 661.62442 - Manual (Page 9)

INSTALLATION
MOTOR PULLEY ADJUSTMENT (Figure 13)
NOTE: ALL DUCT CONNECTED
COOLERS MUST BE ADJUSTED
Long or small afr ducts have excessive air
resistance
which decreases air output and
motor amperage. You may compensate for this
by adjusting the motor pulley. Use-a clamptype
ammeter to check the motor amperage
1. Check amperage at the white lead in the wiring
box
2 lithe amperage is less than the motor nameplate
amperage, loosen the pulley pitch adjustment
screw, turn the pulley % turn clockwise, tighten
the screw and recheck the amperes Repeat as
necessary to bring the amperage to the name­
plate rating.
3. If the amperage Is too high, turn the pulley coun­
ter - clockwise as required
4. Adjust the belt tension as required. (See page
13).
PITCH ADJUSTMENT
SCREW
NOTE: When checking amperage with the ammeter;
a)! louvers must be In place in the cooler;
otherwise incorrect setting of the drive
pulley will occur
STARTUP SNSPECTION
Before starting the cooler, make sure all installations
and adjustments are correct. Be sure that:
® Cooler is level and duct is sealed
о Cabinet is securely fastened to the mount.
© Cooler is grounded. Eiectricai connections are
secure
e Blower wheel does not rub against housing.
© Water supply is turned on
s Water line is connected securely and fittings and
crossover tube grommets do not leak
® Float is adjusted for proper water level
® Pulley alignment is OK Beit tension is OK (See
page 13)
• Pads are correctly installed (See page 13)
® Slower and both pad motors are plugged into
receptacles
e All louver clips are snapped tight
STARTUP CHECK LtST
To check out the installation follow this startup
procedure Set the control to each position and check
operation per the following chart Be sure to open
windows or vents.
OPERATION WITH SEARS SWITCH 32-6251
(Five Position)
Blower Pad
Switch tiHotor Motors
Off Off Off
Low Vertt Low Off
High Vent High Off
Low Coo! Low On
High Cool High On