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Owner’s Manual 

Model No. 

N3000S 
N4000S 
N4500S 
N5500S 
N6500S 

N3100D 
N4300D 
N4800D 
N5600D 
N6600D 

Less Motor Units 

N30S 

N40/45S 
N55/65S 

N31D 

N43/48D 
N56/66D 

 

R

E

A

D

 A

N

D

 S

A

V

E

 

THIS INSTRUCTION MANUAL 

Side and Down Discharge

Evaporative Air Coolers 

 

70932 

Rev. 6/02 

Summary of Contents for N3000S

Page 1: ...00S N4000S N4500S N5500S N6500S N3100D N4300D N4800D N5600D N6600D Less Motor Units N30S N40 45S N55 65S N31D N43 48D N56 66D READ AND SAVE THIS INSTRUCTION MANUAL Side and Down Discharge Evaporative...

Page 2: ...rotective eyewear and other applicable safety gear Never wear slippery soled shoes when working on a roof Never use a cooler without connecting it to a duct system or without a sturdy mesh guard over...

Page 3: ...o securely fasten all four corners of cooler to stand or pad 9 Caulk duct to the cooler Ensure roof or wall opening is sealed well Duct Work The most important principle in duct construction is to kee...

Page 4: ...est cold water pipe and install a saddle valve assembly Route tubing to cooler Place Compression Nut and Ferrule over end of tubing Insert the tubing into float valve and tighten Compression Nut to se...

Page 5: ...amps remove the belt loosen the adjustment set screw and close the pulley one full turn Tighten the adjustment set screw replace the belt and check amperage again Repeat as necessary until amperage re...

Page 6: ...ng season If the motor has oil holes usually plugged with yellow caps that read OIL at either end of the motor oil the motor also following the same procedure as for bearings 3 4 Note Excessive oil in...

Page 7: ...10 Blower wheel 30318 30322 30323 30318 30322 30323 11 Shaft 30241 30238 02 30238 01 30241 30238 02 30238 01 12 Bearing 70926 2 60PB 2 60PB 2 583000 2 60PB 2 60PB 2 13 Thrust washer 501244 2 501241 2...

Page 8: ...ing and trouble free operation Service your cooler at the beginning of the season and inspect it several times during the season Filter Pads Change the filter pads at least twice a year Hard water are...

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