2110498
Wet
Module
Fig.1
Mounting
Bolts
Open Windows To ExhaustAir
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. Thefollowing two methods willhelpyoudeterminetheamount
toopen your windows.
FirstMethod
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
windowsby window width ininchesand divide this intothe numberof
squareinches required foryour size unit. This willgive you theheight
to open windows. In this example, four 36 inch wide windows should
be opened 6.6 inches each.
ChampionAirBalancingMethod
1. Take apiece oftissuepaper and cutit lengthwiseinto3 equal strips.
2. Turn yourcooleron high cool.
3. Open one window at least six inches wide in each room that you
want to cool.
4. Take thepiece of tissuepaper and putit up againstthe screen ofthe
openwindow furthest from thecoolerdischarge opening. Let goof
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 switchingto lowcool, youmustrebalance your home. Repeat
step 4.
• Once you balance your home you can cool some areas more than
othersby opening thosewindows more andclosingthe others bythe
same amount. Repeat step 4 to make sure your home is still air
balanced.
Motor
Clips
Yoke Adjustable
Yoke
Fig. 2
Blower
Housing
Motor
Pulley
Blower
Pulley
Fig.3
Screws
Fig. 4
Junction
Box
CAUTION: Donot screwor drillwithin
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)
MotorInstallation
•Install motor cord. For
typical 120V installation,
connect motor cord to mo-
torusing the followingcolor
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: Adjustableyoke 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.
ElectricalInstallation
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.
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
dampersto provide completelyautomaticoperation.
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.
WaterConnection
•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
