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Adjust Belt Tension
Each time you inspect your cooler, be sure to check belt tension on
motor/blower assembly. Check belt condition and replace it if frays or
cracks appear. Check alignment of blower pulley with motor pulley
Cleaning Water Pump & Hose
CAUTION:
Disconnect all electrical power to the cooler
before attempting to install, open, or service your cooler.
More than one disconnect will be required to de-energize
the equipment for servicing. If the cooler is
thermostatically controlled, the thermostat is not to be
used as the power supply disconnect, as it may reset and
start the unit unexpectedly.
CAUTION
: Do not allow pump to fall over and become
submerged; water will damage pump motor.
Clean pump, hose and distributor assembly as follows:
Unplug pump cord, remove mounting bracket screw and
remove pump from cooler. Shake gently to remove water.
To prevent breakage, carefully release the five snap-out tabs
in order noted on base plate and remove impeller base plate
from the pump body.
Using a mild detergent solution and a soft cloth, clean
deposits from screen, around impeller and base plate.
Spin impeller to dislodge any remaining foreign material.
Remove any foreign material in the hose adapter (between
the pump and hose), or between the hose and the water
distributor assembly.
Rinse and reinstall impeller base plate.
Reinstall pump and reconnect pump cord.
Draining
Drain the cooler (with water supply and power turned off ) as follows:
Connect a drain hose to the drain fitting on the bottom of the
reservoir, if not already connected to drain line.
Remove overflow standpipe from the drain fitting.
Drain and clean reservoir (never drain water onto a roof,
mineral build-up or damage to roof may occur).
Touch-Up
The hardness, adhesion and smoothness of the internal and external
finish on your cooler makes it extremely unlikely that scratches or
chipping will occur. In the event that finish damage does occur, it
should be promptly repaired by the following procedures:
1.
Sand the area around bare metal spots.
2.
Prime and paint with a quality paint.
Do not use asphalt type cooler undercoat material in water
reservoir. Undercoat will break free, clogging the pump and
water distributor.
Lubrication
Motor Bearings
Some of the 3/4 & 1 Hp, single phase motors used in Industrial /
Commercial coolers have ports for lubricating the motor and are oiled
at the factory. If the need for oiling is indicated, see individual motor
nameplate for specific instructions on re-lubricating the motor. Under
normal use, these motors require oiling about every 12 months of
operation. Do Not Over-Oil.
The larger Hp motors use ball bearings and are permanently
lubricated and do not require lubrication.
6 UL Classified Aerocool Industrial / Commercial Evaporative Cooler Use and Care Manual
Blower Shaft Bearings
Blower shaft bearings are sealed and do not require oiling.
.
Pump Motor Bearings
The pump motor does not require lubrication.
Cleaning or Replacing Wet section Cooler Pads
CAUTION:
Disconnect all electrical power to the cooler
before attempting to install, open, or service your cooler.
More than one disconnect will be required to de-energize
the equipment for servicing. If the cooler is
thermostatically controlled, the thermostat is not to be
used as the power supply disconnect, as it may reset and
start the unit unexpectedly.
The condition of your cooler pads should be checked at least once a
year; at the beginning of the season is best. However, your pads may
need to be checked more frequently, depending on local air and water
conditions. For instance, in areas where mineral content of the water
is high or the air is dusty, deposits may build up in the cooler pads,
restricting airflow. Clean or replace pads as follows:
1. Disconnect power from unit.
2. Remove pads from wet section cabinet as follows:
a.
Remove inlet louver panels from cabinet.
b.
Remove top pan from cabinet.
c.
Remove water distributor cover and tube assembly.
d.
Remove pads by tilting slightly forward and carefully lifting
up and out. If passages are clogged or pad is dirty, hose off
inlet face of pad. Light, gentle brushing of the inlet edges of
the pad with a stiff bristle brush (do not use a wire brush) will
not harm the pad and will remove more stubborn scaling.
e.
If necessary, replace with new Aerocool pads, available only
from your Aerocool dealer. Aspen, expanded paper or other
types of evaporative cooling pads will not work and will void
your warranty.
3. Using a mild detergent, wash dirt and scale from the inside of the
wet section cabinet. Wire brushing is not recommended. If finish
is damaged or rusting is noted, repair as noted in the "Touch-Up"
section. Rinse with fresh water.
4. Reinstall pads, making sure they are positioned correctly
(painted stripe on pad placed to the bottom, facing outside).
5. Reinstall water distributor cover and tube assembly.
6. Reinstall top pan to wet section cabinet.
7. Reinstall inlet louver panels.
REPLACEMENT PARTS
When ordering replacement parts, always refer to the serial and
model number of your cooler. Use the part numbers listed in the
accompanying parts list, as illustrated in the diagrams for your model.
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