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Operation
To eliminate the delivery of hot air when starting the cooler, start the
pump only for the first few minutes, then turn on the blower motor.
These coolers may be used without water for ventilation purposes.
When outside air is cool (for example, at night) or when humidity is
high the water pump can be turned off.
A cooler can also be installed with a thermostat and attic exhaust
dampers to provide completely automatic operation.
Open Windows To Exhaust Air
An often misunderstood concept of evaporative cooling is the amount
of air that should be exhausted. How much should you open your
windows? The fact is that most people do not open their windows
enough. The following two methods will help you determine the amount
to open your windows.
First Method
You should allow an opening of at least 2 square feet (288 square
inches) for each 1000 CFM rating of your unit. Example: At 3320
CFM, model ADA 50 (1/2 hp) requires 6.6 square feet (950 square
inches) of opening (3320/1000 * 2 = 6.6). Multiply the number of
windows by window width in inches and divide this into the number of
square inches required for your size unit. This will give you the height
to open windows. In this example, four 36 inch wide windows should
be opened 6.6 inches each.
Champion Air Balancing Method
1. Take a piece of tissue paper and cut it lengthwise into 3 equal strips.
2. Turn your cooler on high cool.
3. Open one window at least six inches wide in each room that you
want to cool.
4. Take the piece of tissue paper and put it up against the screen of the
open window furthest from the cooler discharge opening. Let go of
it. It will do one of three things.
IF
It falls down.
THEN
CLOSE all of the windows one inch and try step 4 again.
IF
It plasters itself to the screen.
THEN
OPEN all of the windows one inch and try step 4 again.
IF
It stays on the screen lightly.
THEN
PERFECT. You are done. Enjoy your cooler.
NOTES:
• When switching to low cool, you must rebalance your home. Repeat
step 4.
• Once you balance your home you can cool some areas more than
others by opening those windows more and closing the others by the
same amount. Repeat step 4 to make sure your home is still air
balanced.
Cooler Installation
CAUTION:
Make sure that the mounting surface is strong
enough to support the operating weight of the cooler when in
use. (For operating weight, see Specification Table.)
CAUTION:
Never plug in cooler until installation is com-
plete and unit has been tested for rigidity.
2
CAUTION:
Do not screw or drill within
5 inches of the bottom of the wet module.
You could puncture the reservoir.
NOTE: You can separate the wet module
from the blower module by removing the 4
bolts (2 bolts in ADA35 and ASA35) from
the wet module side (Fig. 1)
Motor Installation
• Install motor cord. For
typical 120V installation,
connect motor cord to mo-
tor using the following color
code: Black - Hi, Red - Low,
White - Com., Green -
Ground.
• Mount motor.
Install
blower motor in the motor
mount yokes, adjusting the yoke
if necessary. Fasten with the pro-
vided mounting clips (see Fig. 2).
NOTE: Adjustable yoke will have
to be reversed for 1 H.P. motors.
• Install pulley. Install the adjust-
able motor pulley so that it aligns
with the blower drive pulley (see
Fig. 3) and tighten set screw.
Electrical Installation
WARNING:
Disconnect all electrical service that will be
used for this unit before you begin the installation.
• Remove junction box. The
electrical junction box is lo-
cated in the upper inside of
the left center post. Remove
the two screws and pull box
out from panel for access to
plug wiring (Fig. 4).
• Hook up electrical. Electri-
cal hook up should be done by a qualified electrician, so that all
electrical wiring will conform to your local standards. This unit is
suppled with a 120V pump. For 240V pump operation, a 240V
pump must be purchased. The fan and pump receptacles will
support both 120V and 240V installations. See the wiring dia-
grams for 120V and 240V installations on the following page.
IMPORTANT: When a single speed motor is used, do not use the
red lead on the receptacle and motor plug wiring. Tape off end of
both of the red leads.
CAUTION:
Pump receptacle is for grounded evaporative
cooler pump only. Do not plug anything else into receptacle.
WARNING:
Make sure that cooler cabinet is properly
grounded to a suitable ground connection for maximum safety.
Water Connection
• Install overflow assembly. Remove nut and place nipple through
the hole in the pan, with the rubber washer between the pan and the
head of the drain nipple (Fig. 6). Screw on nut and draw up tight
against bottom of pan. Insert overflow pipe in nipple to retain
Wet
Module
Mounting
Bolts
Fig. 1
Motor
Clips
Yoke
Adjustable
Yoke
Fig. 2
Motor
Pulley
Blower
Blower
Housing
Pulley
Fig. 3
Screws
Junction
Box
Fig. 4
110498
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