Maintenance - MasterCool ADA51 Installation & Operation Manual

MAINTENANCE

Regular maintenance on your cooler will increase performance and extend the life of your cooler.
WARNING: Before accomplishing any maintenance ensure power is turned off and the motor and pump are
unplugged.
START OF SEASON MAINTENANCE
Accomplish these basic steps before the temperatures require cooling in case you have to acquire replacement parts.
CLEAN MEDIA
1. With power OFF, remove inspection panels, top panels and inlet grille to access
interior of unit. Place panels in a fl at, secure place to protect them from being
bent or damaged.
2. Disconnect water tube and lift off water distribution tray, accessing the media.
Remove fi lter pad on top.
3. Remove and inspect media pads. Using a garden hose sprayer, wash the media
pad ensuring openings are clear of obstruction and dirt. Some light scrubbing
may be required to remove mineral deposits. Do not use harsh detergents or
pressure washers in cleaning. Make every effort to keep the media intact.
4. The original media has a standard life of 5 years, but in areas with very high
mineral content the media may have to be replaced sooner.
5. When reinstalling existing or installing new replacement pads, ensure pads are installed in the correct confi guration:
• Place the media into the unit with the steeper fl ute angle sloping down towards the air inlet side. This provides the most effective
water fl ow to the pads, allowing higher cooling effi ciencies.
• We recommend using original equipment, MasterCool® media replacement pads for highest cooling capabilites.
NOTE: If competitor pads with equal angles are installed, disregard directional placement of media.
OIL BEARINGS
1. The blower bearings should be oiled each year with non-detergent 20/30 weight oil.
2. Locate and open the oil cup on each of the blower bearings and add a few drops of oil.
3. Add oil to motor bearings if motor has oil lines. Note: Many motors are sealed and do not
require addition of oil.
CAUTION: Do not over oil the motor, as this can cause the motor to burn out due to
excessive oil on windings.
CLEAN PUMP
1. Pump should be cleaned at least once a year or more often if debris accumulates.
2. Unplug motor and pump from junction box, and disconnect water tube, if not already accomplished.
3. Using a screw driver, pry plastic retaining fastners straight up out of the pump-mounting bracket.
4. Slide the pump off the mounting bracket.
5. Extract pump from straining basket or netting and remove base of pump.
6. Clean pump, turn impeller to ensure free movement.
7. Remove pump spout and check for blockage.
8. Reinstall pump base and verify it is secure.
9. Before reinstalling pump, check water hose, bleeder line and water distributor tube to
ensure there is no blockage in any lines.
10. Reinstall the pump by sliding pump onto mounting bracket and reinserting the plastic
retainers to ensure pump stays in upright postion.
11. Reinstall water tube to the pump outlet spout.
CHECK BELT
1. Before unit is turned on, check that belt condition is good. If belt must be replaced, install
same sized belt.
2. Verify belt tension is correct: 3/4" defl ection with 3 lbs of force.
END OF SEASON SHUTDOWN
The cooler should be prepared before any extended period of non use, and especially before winter shutdown.
1. Drain all water from unit, supply line and pump to ensure no damage occurs from freezing. Keep water line disconnected from both
unit and supply line.
2. Unplug motor and pump from junction box.
3. Clean unit.
4. Cover unit to protect fi nish for long periods of non use.
Air Enters
6
45°
Air Exits
15°
Blower Bearing
Oil Cup
Remove
Base
Impeller
110498-2