Essick Air N28W Merkblatt

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Motor - Water Resistant with thermal overload
protection and permanently lubricated bearings
It’s our FEATURES
that set our coolers above the rest
Water Trough - Adjustable for even water distribution
Cabinet - Heavy gauge galvanized steel. Bolts
together for easy access and rust/corrosion resistence
Blower - Machine balanced for smooth, quiet 
operation and maximum air delivery
Pump - Permanently lubricated bearings can run
with or without water
Built-in leveling leg -  Window units include
house legs for leveling and extra support
Selecting the right Essick cooler is
 EASY
1. Consult zone map to find correct size.
2. Consult table below to find correct “minutes per air change” for your zone.
3. Determine area to be cooled in cubic feet (building height x length x width.)
4. Divide cubic feet from step three by minutes per air change (step 2) to determine CFM.
5. Select correct Essick Cooler model in the specifications table according to CFM and expected static pressure.
Year Limited 
Warranty
on bottom pan 
against leakage
due to rust-out.
IF CFM falls between models, choose the larger model.
Interior Heat Load:  High means places with unusual heat
sources from hot equipment or processes, crowded conditions, etc.
Normal means no unusual heat sources - typical home or office.
Exterior Heat LoadExposed means walls and/or roof exposed to sun, 
poor insulation, etc. 
Insulated means walls and roof well insulated and/or shaded.
Minutes Per Air Change
INTERIOR
HEAT LOAD
EXTERIOR
HEAT LOAD
HIGH
EXPOSED
2
1.5
1.3
.7
NORMAL
EXPOSED
3
2
1.5
1
NORMAL
INSULATED
4
3
2
1.3
HIGH
3
2
1.5
1
INSULATED
For Example:
A house in Phoenix AZ. is 40 ‘ long by 30 ’ wide with 8‘ ceilings and has standard insulation with no unusual heat sources.
1.    Establish cubic feet: 30 x 40 x 8 = 9,600 cu. ft.                            2.    Determine Zone:  Phoenix is in Zone 2
3.   Use chart to discover Minutes Per Air Change: 3                      4.    Compute Cubic Feet per Minute (CFM): 9,600
÷3 = 3,200 CFM
5.  Review Specification Charts inside brochure to determine which unit meets the needs. 
     In th
is example, the N43/48D with ½ h. p. motor i
s indicated (assuming a typical static pressure of 0.2). 
Essick Air Products   5800 Murray Street ,  Little Rock,  AR. 72209     800 643-8341     www.essickair.com
1
ZONE
2
3
4
Residential Evaporative Coolers
Essick Excel
N- Series
Coolers Provide 
A Wide Variety of 
Home Cooling Options:
•  Window Units
•  Remote Controlled Units
•  Down Discharge Units
•  Side Discharge Units
The Environmentally Friendly
Alternative To Traditional
Air Conditioning
ERB 06-08
ALL UNITS MADE IN USA
*
 
Except for N28W unit
*