Troubleshooting guide

4
110498-2
Maintenance
WARNING: Before doing any maintenance be sure power
is off. At the time you remove either inspection panel be sure to
unplug motor and pump. This is for your safety.
Spring Start-Up
• Clean pads. A clean pad is more absorbent, effi cient and will give
more cool air. Annually, or when required, using a garden hose
with nozzle, back wash to clean out the openings, then clean off
the inlet face any scale or other obstruction to the passages. Slight
scraping may be required to remove hardened scale.
• Change pads if necessary. The pads should be replaced after 5
years or if necessary. To change pads, remove top access panel,
remove grill, and disconnect water delivery tube. Remove water
distributor holder and lift out media sections. Replace with the
same type media. You can purchase them from your dealer.
IMPORTANT: In order to get the best performance from your
cooling pads, they must be installed properly. If you have purchased
a pad with two equal angles, the following instructions can be
disregarded. Pads must always be installed with the steeper fl ute
angle sloping down towards the air entering side (Fig. 10). The
reason is simple. The steeper angle puts more water on the hot, dry,
dirty side of the pad where it is needed most. It also counteracts the
tendency of the air to push the water toward the back of the pad.
Fig. 11
3 Lb.
3/4 Inches
• 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 oil 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.
• Clean pump. Cleaning 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 impeller to
ensure free operation. Remove the pump spout and check for any
blockage. After cleaning, reinstall the base onto the pump. Press
fi rmly to make sure it is secure. 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 delivery
tube onto the pump outlet.
Impeller
Remove
Base
Fig. 12
45°
15°
Entering
Air
Leaving Air
Fig. 10
• Check belt tension. A 3 lb. force should defl ect the belt 3/4
inches (see Fig. 11). Readjust belt if needed.
• Check bleed-off valve to be sure it is not clogged.
Winter Shut-Down
• Drain water. Always drain all of the water out of the cooler and
water supply line when not in use for prolonged periods, and par-
ticularly at the end of the season. Keep the water line disconnected
from both the unit and water supply so that it does not freeze.
• Unplug motor and pump. When cooler is not used for extended
periods unplug the motor and pump from inside cooler.
• Cover unit. To protect the life of the fi nish, a cover for the unit is
suggested in extended periods of non use.
By following the operating, installation, and maintenance suggestions
as outlined, you can get many years of efficient and satisfactory service
from your cooler. In the event additional information is desired, your
dealer will be more than glad to assist you in every possible way.
Com.
To Switch
Pump
Motor
Blower Motor
Red
Orange
Green
Black
Ground
Com.
Lo
Hi
= Wire Nut
Ground
Lo
Hi
Pump
Black
Red
White
Orange
Green
Green
Orange
Brown
White
Blue/Black
Blue/Black
White
Brown
Orange
Green
Green
Orange
White
Red
Black
Pump
Hi
Lo
Com.
Ground
= Wire Nut
Hi
Lo
Com.
Ground
Black
Green
White
Red
Blower Motor
Pump
Motor
To Switch
Wiring Diagrams
120 Volts 240 Volts