3
110519
DEPRESS HERE
TO REMOVE
FIG. 12
FIG. 11
3 LB.
3/4 INCHES
•
Connect water supply line.
Find the closest supply of wa-
ter. Use a saddle valve (Fig. 6)
to connect 1/4” tubing to the
cold water supply or use a
Sillcock and water valve con-
nected to an outside faucet
(Fig. 7). Place the nut and fer-
rule on the tubing and tighten
the nut until water tight.
IM-
PORTANT:
Do not connect the
water supply to any soft water
applications. Soft water will
cause corrosion and de-
crease the life of the cooler.
•
Attach water line to float.
Attach the water supply line
to the float in the same man-
ner as above. The float may
be installed in either the cor-
ner post or bracket (Fig. 8).
•
Fill pan.
Allow water to fill to
within 1” of top of pan and ad-
just float to maintain this
water level. This can be ac-
complished by bending the
float rod.
•
Adjust water amount.
Your
cooler is equipped with a
unique water metering valve (Fig. 9). The amount of water
delivered to the pads may be decreased by pressing the
plastic valve as the arrows indicate.
If water is splashing out of water
troughs, you may need to decrease
the amount of water delivery. Check
to see that all pads are saturated with
water and that there are no dry spots
or openings in the pads.
AMPERAGE DRAW AND BELT TENSION
This unit is equipped with an adjustable motor drive sheave
for adjusting the blower wheel speed to the proper loading on
different duct systems. It is important that the motor drive pul-
ley is adjusted to correct size to assure maximum air delivery
without damage to the motor. Be sure to follow these instruc-
tions carefully.
•
Adjust drive pulley.
After the unit is completely installed,
adjust the drive pulley to the least diameter and adjust belt
tension. See the maintenance section for adjusting belt ten-
sion.
•
Start cooler.
Install all pad frames, start pump, and allow to
operate until pads are wet.
•
Check amperage.
With pads wet and unit started, check
amperage draw with an amperage meter.
•
Adjust pulley if necessary.
If amperage draw is less than
motor rating, turn off electrical power and remove pad frame.
Unplug motor inside cooler, this will protect you from some-
one turning on unit while you are working inside. This should
MAINTENANCE
WARNING
: Before doing any maintenance be sure
power is off. At the time you remove a pad frame be sure
to unplug motor and pump. This is for your safety.
SPRING START-UP
•
Oil bearings.
The blower bearings and cooler motor in this
unit should be oiled with a few drops of non-detergent 20/30
weight oil once each year. The motor does not need oil if it
has no oil lines for oiling. Motors that have no lines are
lifetime oiled at the factory and require no further oiling for
the life of the unit.
CAUTION
: Do not over oil.
Over oiling can cause motor
burn out, due to excessive oil getting into
motor winding.
•
Check belt tension.
A 3 lb.
force should deflect the belt 3/
4 inches (see Fig. 11). Read-
just belt if needed.
•
Change Pads.
The pads should be replaced once or twice
a season, depending upon the length of the season. At the
beginning and at mid season a clean pad is more absorbent
and efficient and will deliver substantially more cool air.
•
Clean pump.
Clean-
ing the pump is
necessary once a year
at start-up. For your
safety, turn unit off and
unplug motor and
pump. Remove the
pump from the mount
slot. Remove the base
of the pump as shown
in Fig. 12. Clean the
pump and turn the im-
peller to ensure free operation. Remove the pump spout
and check for any blockage. After cleaning, reinstall the base
onto the pump. Reattach the pump to the mount in the cooler
using the plastic retainer to ensure that the pump will not
overturn. Do not forget to replace the spout and water deliv-
ery tube onto the pump outlet. The pump has automatic
reset thermal protection.
INCREASE
DECREASE
FIG. 9
FAUCET
WATER SUPPLY
VALVE
SILLCOCK
FERRULE
NUT
FIG. 7
DECREASE
AMPERAGE
FIG. 10
FLOAT
CORNER
POST
BRACKET
FIG. 8
COLD
WATER
PIPE
SADDLE
VALVE
1/4” TUBING
FIG. 6
be done for your safety. Adjust pul-
ley to a larger diameter and readjust
belt tension, plug motor in, install pad
frame, and retest amperage draw.
Repeat this process until correct
amperage draw is attained. Increas-
ing motor pulley diameter increases
amperage draw. Decreasing motor
pulley diameter decreases amperage
draw (see Fig. 10).
CAUTION:
Do not operate cooler with larger amper-
age draw than specified on motor plate.
NOTE:
No attempt should be made to completely install this
unit without the aid of an electrician or someone familiar with
testing amperage draw. Failure to comply with these instruc-
tions may void your warranty.
