Essick Air M401A User Manual

Evaporative cooling is nature’s way of cooling. When air is moved 
over a wet surface, water is evaporated and heat is absorbed.  When 
stepping out of a swimming pool with the wind blowing, evaporative 
cooling makes you feel cool, even though the air may be warm.  
The human body itself is cooled primarily by the evaporation of 
perspiration.

This unit works on the same principle.  Air is drawn across wet 
fi lter pads where the air is cooled by evaporation and then circulated 
throughout the building.  It is this combination of cooled air and the 
movement of air over the skin which makes it feel cool.

Unlike refrigeration systems which recirculate the air, an evaporative 
cooler continually brings in fresh air while exhausting old air.  You 
are completely replacing the air every 2 to 4 minutes by opening 
windows or doors or a combination of both.  The air is always fresh, 
not stale, laden with smoke and odors as happens with refrigerated 
air conditioning.

1.  Read these instructions carefully.

2.  Unit must be in the Off Position and Unplugged from power 

receptacle when installing or performing any maintenance.

3.  This cooler will run on 120 volt A.C., 60 Hz (cycle) current 

only.

4.  Motor and pump are grounded and have an automatic thermal 

overload switch which will shut motor off if it overheats.  The 
motor will restart automatically when it cools down.

5.  Pump receptacle is for grounded evaporative cooler pump only.  

Do not plug anything else into receptacle.

:  To reduce the risk of fi re or electric shock, do not