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110524-1

8

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 OR REPLACE MEDIA

1. 

With power DISCONNECTED, remove louvered doors. 

2. 

Inspect filter media.  Scale buildup on the media will obstruct the airflow and cause the media to be less absorbant.  If there is a 

lot of scale buildup, check the bleed or purge settings.  The bleed-off may be plugged, or the purge cycle may need to be more 

frequent.  A dirty filter will be less efficient and will cause a decrease of cooling in the home.

3. 

If media is dirty, remove from the louvered side.  Remove the top media support brackets, loosen the water trough screws and raise 

water trough, then lift out media.

4. 

Clean the media with a garden hose.  Light scraping 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.

5. 

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.  If cooling efficiency is not adequte, replace the media.

6. 

When reinstalling existing or installing new replacement pads, we recommend using original equipment, MasterCool® media 

replacement pads for highest cooling capabilites.

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.

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 pump distribution tube.

3. 

Using a screw driver, pry plastic retaining fasteners 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 pump water distributuion tube to the pump outlet spout, making sure it is 

pressed onto spout securely.

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” deflection 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 finish for long periods of non use.

Impeller

Remove 

Base

Blower Bearing 

Oil Cup

Содержание 4000 CRLD4

Страница 1: ...ill shut motor off when it overheats The motor will restart automatically when it cools down WARNING To reduce the risk of fire or electric shock do not use this fan with any solid state fan speed control device PN 110524 1 REV 11 17 READ CAREFULLY ALL OF THIS MANUAL BEFORE INSTALLING THE UNIT Evaporative cooling is nature s way of cooling When air is moved over a wet surface water is evaporated a...

Страница 2: ...ion switch 2 Supply 120V or 240V power to switch depending on motor and pump voltages 3 Remove screws securing junction box to cooler cabinet 4 Bring four conductors plus a ground from switch to cooler junction box CAUTION Make sure to use correctly sized wire and follow all local electrical codes 5 Connect the four conductor wires to the leads of the motor and pump receptacles located in the junc...

Страница 3: ...al box This cable is not supplied WARNING The thermostat cable should not be routed next to or enter the cabinet through the same inlet as the power supply wire 3 Connect the thermostat wires to the terminals on the back of the wall control and to the terminals located on the left side of the control box in the unit Make sure to follow the color code found next to each terminal Blue Black White Br...

Страница 4: ... Refer to illustration below 1 Remove items 2 3 4 and 5 from float 2 Insert float body through hole in the corner post or float bracket as shown 3 Install washer 2 and nut 3 Tighten to keep float from turning Place nut 5 and ferrule 4 on water supply line Connect to float fitting and tighten until water tight Note After installation is complete and water is turned on the float level will need to b...

Страница 5: ...ON DO NOT operate cooler with larger amperage draw than specified on motor plate Motor damage will occur 4 Check belt tension after adjusting pulley A 3 lb force should deflect the belt 3 4 inches Readjust belt if needed by loosening adjustment screw rotate motor until you have the correct belt tension then re tighten screw SCALE BUILDUP PREVENTION As water evaporates minerals that were in the wat...

Страница 6: ...w speed If the room temperature rises to 4 degreees above the set temperature the fan will change to high speed and will remain until the room temperature drops to 1 degree above the set point where it will change to low speed The thermostat allows the operator to calibrate the room temperature reading Pressing the up and down arrows simultaneously for 5 seconds will enter the calibration mode A t...

Страница 7: ...eration An often misunderstood concept of evaporative cooling is the amount of air that should be exhausted How much should you open your windows The following two methods will help you determine the amount to open your windows WINDOW AREA CFM METHOD For proper air flow allow an opening of at least 2 square feet 288 square inches for each 1000 CFM rating of your unit Example At 3640 CFM model 4000...

Страница 8: ...L 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 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 pump distribution tube 3 Using a screw driver pry plastic retaining...

Страница 9: ...ncrease air flow 2 Belt too loose 2 Adjust belt tension or replace if needed 3 Pads plugged dirty 3 Clean pads 4 Motor underloaded 4 Adjust pulley Water draining onto roof 1 Float arm not adjusted properly 1 Adjust float 2 Overflow assembly leaking 2 Tighten nut and overflow pipe Musty or unpleasant odor 1 Stale or stagnate water in cooler 1 Drain pan and clean pads Motor cycles on and off 1 Low v...

Страница 10: ...p Mount 218001 031 218001 031 2 22 Pump 110429 110429 23 Pump Retainer 110714 3 110714 6 24 Purge Pump 110429 25 Pump Mount Extension Bracket 218001 033 218001 033 2 26 Pad Retaining Strap Fastener 110611 24 110611 24 27 Tube Water Delivery 310716 310716 28 Over Flow Assembly 110610 110610 29 Water Distributor Assembly 3D 7 3D 7 30 Holder Water Distributor 110574 8 110574 8 31 Electrical Junction ...

Страница 11: ...110524 1 11 PARTS DRAWING ...

Страница 12: ...ding failure to perform reasonable maintenance normal wear and tear Alterations include the substitution of name brand components including but not limited to media pads We are not responsible for any damage from the use of water softeners or treatments chemicals or descaling materials We are not responsible for the cost of service calls to diagnose the cause of trouble or labor charge to repair a...

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