Essick Air WCM28 User Manual
CHAMPION•ESSICK
Window Evaporative Cooler
Models
WCM28
N28W
Serial #
Número De Serie
Read Carefully All Of This Manual
Before Installing The Unit
Manual
Lea Con Cuidado Todo Este Manual Antes
De Instalar La Unidad
Read And Save These Instructions
Vea el español en el interior.
Evaporative Cooling
With this unit being a fresh air system, you are not trapped with
recirculating air that can become stale, laden with smoke and odors,
as happens with refrigerated air conditioning systems. Instead,
you are completely replacing the air every 2 to 4 minutes by either
opening doors or windows or a combination of both to exhaust the
air continually.
How much should you open your windows? T o obtain the maximum
cooling capacity of your cooler, you should open your windows until
the air inside the house is nearly balanced with the air outside. As
you open your windows you decrease the pressure buildup inside the
home, and the cooler is able to output increasingly more air until the
capacity of the cooler is reached.
Safety Rules
1. Read instructions carefully.
2. Unit must be in the OFF POSITION and UNPLUGGED from
power receptacle when installing or performing any maintenance.
3. Your cooler will run on 120 volt AC., 60 Hz (cycle) current
only.
4. Motor and pump are grounded and have an automatic thermal
overload switch which will shut motor off when it overheats. The
motor will restart automatically when it cools down.
WARNING: T o reduce the risk of fi re or electric shock, do not
use this fan with any “solid-state fan speed control device.”
Operation
One method to determine when the air is reasonably balanced is to
place a piece of tissue paper up against the screen of the window
furthest from the cooler and adjust the opening of the windows in the
house until the tissue paper stays lightly on the screen. If the tissue
plasters itself to the screen, open the windows more. If it falls, close
the windows more.
110499 3-09
www.championcooler.com
To eliminate delivery of hot air when starting cooler, turn on pump
only for the fi rst 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.
Cooler Installation
be broken off. Apply pressure on the edge of the panel that extends
over the edge of the surface and break off unwanted piece.
Installing House Legs
• NOTE: If installing unit without the use of the installation kit,
omit these directions and those pertaining to Fig. 2.
• Remove two corner screws in bottom pan (A-Fig. 1).
• Place house leg bracket at corner of bottom pan, using two top
holes in bracket (B-Fig. 1). Replace
the two previously removed screws to
hold house leg bracket in place (As
shown by dotted house leg bracket).
A
• Mount other side in same manner.
• Refer to the instructions “Adjust
B
house legs” below for adjusting house
leg .
Fig. 1
Mounting Cooler
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 Specifi ca tion Table.)
CAUTION: Never plug in cooler until installation is complete
and unit has been tested for rigidity.
• Lift out all removable louvered sides.
• Screw chain hooks into win-
dow facing. Position the two
chain hooks above the neck of
the cooler a distance equal to
the width of the cooler apart
(A-Fig. 2). Hook one hanger
chain in each hook and then
one “S” hook in the other
end of each chain. NOTE:
Chain hooks supplied with this
mounting kit have wood screw
threads for wood walls. Con-
D
C
Window
Neck
H
E
crete, brick walls or concrete
blocks require sufficiently
strong wing nuts or anchors
with mating hooks.
• Install window panel retainers. Place two panel retainer strips
onto bottom of neck fl ange and position to the width of the window.
Cut the strips to fi t if necessary. These strips hold the window fi ll-
in panels (Fig. 3).
• Position cooler in window. Position neck of cooler so that the
fl ange (E-Fig. 2) is snug against edge of sill (H-Fig. 2). With cooler
in position, hook the “S” hooks into the holes of the top pan near
the back of the cooler (B-Fig. 2).
F
A
“S” Hook
B
G
Fig. 2
• Install fi ll-in panels. Place one window fi ll-in panel on each side
of grill and into panel retainer strip at bottom of grill. Place the
other panel retainer strips onto top of neck fl ange and fi ll-in panels.
Be sure the panels are snug up against cooler neck.
• Place window behind retainer strip. Raise back of cooler so that
the window (D-Fig. 2) may be brought down behind top of panel
retainer strip (C-Fig. 2).
• Level Cooler. Adjust the chains to level the cooler.
• Adjust house legs. Pull out house legs so that the rubber bumpers
rest against house siding (F-Fig. 2). Tighten screw in retaining
collar. (G-Fig. 2).
Connecting Water
• Install overfl ow assembly. Place the
nipple through the hole in the pan, with
the rubber washer between the pan
and the head of the drain nipple (Fig.
4). Screw the nut onto the nipple and
draw up tight against bottom of pan.
Insert the overfl ow pipe in the nipple
to retain water. The overfl ow pipe
may be removed to drain pan when
necessary. A garden hose may
be screwed onto the drain nipple
to drain water away from your
unit.
• Connect water supply line.
Install a sillcock and water valve
on a faucet as shown by fi gure 5.
Run 1/4 inch tubing from sillcock
valve to cooler. Place the nut and
ferrule on the tubing and tighten
the nut until water tight.
• Install fl oat valve. Install
valve in the provided hole in
the louvered side (Fig. 6) and
attach water supply line.
• Fill pan. Allow water to fi ll
to within 1” of top of pan
and ad just fl oat to maintain
this water level. This can be
accomplished by bending the
fl oat rod (Fig. 6).
Sillcock
Fig. 5
Louvered Side
Float Rod
Fig. 4
Faucet
Water Supply
Fig. 6
Overfl ow Pipe
Nipple
Rubber Washer
Bottom Pan
Nut
Water Supply
Valve
Line
Nut
Washer
Ferrule
Nut
Ferrule
Nut
• Break fill-in panels
to fi t. With cooler in-
stalled, as described
above, measure for each
window fill-in panel
and score with sharp
knife and straight edge
guide to desired width.
To break window fi ll-
in panels, the panel
should be laid over the
edge of a straight fl at
surface at the point to
2
Top Panel
Retainer
Window Fill-In
Panels
Fig. 3
Bottom Panel
Retainer
Maintenance
WARNING: Before doing any maintenance be sure power is
off and unit is unplugged. This is for your safety.
Spring Start-Up
• Change Pads. Aspen pads should be replaced once or twice a
season, depending upon the length of the season. At the beginning
and at mid season a clean pad is more absorbent and effi cient and
will deliver substantially more cool air.
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• Clean pump. Cleaning the pump is necessary once a year at
start-up. For your safety, turn unit off and unplug from power
receptacle. Remove the pump from the mount slot. Remove the
base of the pump (Fig. 7). Clean the pump and turn the impeller
to ensure free operation. Remove the pump spout and check for
any blockage. After cleaning,
reinstall the base onto the pump.
Press fi rmly to make sure it is
Remove
Base
secure. Reattach the pump to
the mount in the cooler using
the plastic retainer to ensure that
the pump will not overturn. Do
Impeller
not forget to replace the spout
and water delivery tube onto the
Fig. 7
pump outlet.
• Cover unit. To protect the life of the fi nish, a cover for the unit is
suggested in extended periods of non use.
• Unplug unit from power supply during extended periods of non
use.
By following the operating, installation, and maintenance suggestions as outlined, you can get many years of effi cient and satisfactory
service from your cooler. In the event additional information is
desired, your dealer will be more than glad to assist you in every
possible way.
Wiring Diagram
• Oil motor. The cooler motor in this unit
Oil
should be oiled with a few drops of nondetergent 20/30 weight oil once each year.
The oil ports are located on each side of
the motor (Fig. 8). Motors that have no oil
ports are lifetime oiled at the factory and
require no further oiling for the life of the
Fig. 8
unit.
CAUTION: Do not over oil. Over oiling can cause motor burn
out, due to excessive oil getting into motor winding.
Winter Shut Down
• Drain water. Always drain all of the water out of the cooler and
water supply line when not in use for prolonged periods, and
par ticularly at the end of the season. Keep the water line disconnected from both the unit and water supply so that it does not
freeze.
Troubleshooting Guide
Problem Possible Cause Remedy
Failure to
start or no
air delivery
Inadequate
air delivery
with cooler
running
1. No electrical power to
unit
• Fuse blown
• Circuit breaker tripped
• Electric cord damage
2. Motor overheated
• Bearings dry
3. Motor locked
1. Insuffi cient air exhaust
2. Pads plugged
1. Check power
• Replace fuse
• Reset breaker
• Replace cord
2. Determine cause of
overheating
• Oil bearings
3. Replace motor
1. Open windows or
doors to increase air
fl ow
2. Replace pads
White-Com.
Blower
Motor
Pump
Motor
Green
Black-Hi
Plain
Green
Red-Lo
Ribbed-Com.
Green-Ground
Switch
4
2
B
Plain
A
Ribbed-Com.
3
1
Problem Possible Cause Remedy
Motor
cycles on
and off
Noisy
Excessive
humidity in
house
1. Low voltage
2. Motor bearings dry
3. Wheel rubbing blower
housing
4. Faulty motor
1. Motor bearings dry
2. Wheel rubbing blower
housing
3. Loose parts
1. Inadequate exhaust
1. Check voltage
2. Oil bearings
3. Inspect and realign
(Unplug unit)
4. Replace motor
1. Oil bearings
2. Inspect and realign
(Unplug unit)
3. Tighten loose parts
1. Open doors or windows
Inadequate
cooling
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1. Inadequate exhaust in
house
2. Pads not wet
• Pads plugged
• Open spots in pads
• Trough holes or Dis-
tributor system clogged
• Pump not working
properly
1. Open windows or
doors to increase air
fl ow
2. Check water distribution system
• Replace pads
• Repack pads
• Clean
• Replace or clean
pump (Unplug unit)
Musty or
unpleasant
odor
1. Stale or stagnate water
in cooler
2. Pads not wetting
properly
• Trough holes clogged
• Pump not wetting
properly
• Insuffi cient water fl ow
over pads
1. Drain pan and clean
pads
2. Check water distribution system
• Clean
• Replace or clean
pump (Unplug unit)
• Clean distribution
system and trough
openings
3
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