C H A M P I O N • E S S I C K
Window Evaporative Cooler
Manual
Models
WCM28
N28W
Serial #
Número De Serie
Read Carefully All Of This Manual
Before Installing The Unit
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? To 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.
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.
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: To reduce the risk of fire or electric shock, do not use this fan with any “solid-state fan speed control device.”
Operation
To eliminate delivery of hot air when starting cooler, turn on 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.
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Cooler Installation
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 |
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hold house leg bracket in place (As |
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shown by dotted house leg bracket). |
A |
• Mount other side in same manner. |
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• Refer to the instructions “Adjust |
B |
house legs” below for adjusting house |
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leg . |
Fig. 1 |
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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 Specification 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 window 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. Concrete, brick walls or concrete blocks require sufficiently strong wing nuts or anchors with mating hooks.
A
D |
“S” Hook |
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C |
B |
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Window
Neck
H
E
G
F
Fig. 2
•Install window panel retainers. Place two panel retainer strips onto bottom of neck flange and position to the width of the window. Cut the strips to fit if necessary. These strips hold the window fillin panels (Fig. 3).
•Position cooler in window. Position neck of cooler so that the flange (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).
•Break fill-in panels to fit. With cooler installed, 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 fillin panels, the panel should be laid over the edge of a straight flat surface at the point to
Window Fill-In
Panels
Top Panel
Retainer
Bottom Panel
Retainer
Fig. 3
be broken off. Apply pressure on the edge of the panel that extends over the edge of the surface and break off unwanted piece.
•Install fill-in panels. Place one window fill-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 flange and fill-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 overflow 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 overflow pipe in the nipple to retain water. The overflow 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 figure 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.
Overflow Pipe
Nipple
Rubber Washer
Bottom Pan
Nut
Fig. 4
Faucet |
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WaterSupply Valve |
Ferrule Nut |
Sillcock
Fig. 5
• Install float valve. Install |
Water Supply |
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valve in the provided hole in |
Line |
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the louvered side (Fig. 6) and |
Louvered Side |
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attach water supply line. |
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• Fill pan. Allow water to fill |
Float Rod |
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to within 1” of top of pan |
Washer Nut Ferrule Nut |
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and adjust float to maintain |
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this water level. This can be |
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accomplished by bending the |
Fig. 6 |
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float rod (Fig. 6). |
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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 efficient 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 firmly to make sure it is 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 pump outlet.
• Oil motor. The cooler motor in this unit |
Oil |
should be oiled with a few drops of non- |
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detergent 20/30 weight oil once each year. |
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The oil ports are located on each side of |
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the motor (Fig. 8). Motors that have no oil |
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ports are lifetime oiled at the factory and |
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require no further oiling for the life of the |
Fig. 8 |
unit. |
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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 particularly at the end of the season. Keep the water line disconnected from both the unit and water supply so that it does not freeze.
•Cover unit. To protect the life of the finish, 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 efficient 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
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White-Com. |
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Blower |
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Black-Hi |
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Switch |
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Motor |
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Plain |
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4 |
B |
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Green |
Red-Lo |
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2 |
A |
Plain |
Pump |
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Motor |
Green |
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Ribbed-Com. |
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Ribbed-Com. |
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Green-Ground |
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Troubleshooting Guide
Problem |
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Possible Cause |
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Remedy |
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Problem |
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Possible Cause |
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Remedy |
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Failure to |
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No electrical power to |
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Check power |
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Motor |
1. |
Low voltage |
1. |
Check voltage |
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start or no |
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unit |
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cycles on |
2. |
Motor bearings dry |
2. |
Oil bearings |
air delivery |
• Fuse blown |
• Replace fuse |
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and off |
3. Wheel rubbing blower |
3. |
Inspect and realign |
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• Circuit breaker tripped |
• Reset breaker |
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housing |
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(Unplug unit) |
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• Electric cord damage |
• Replace cord |
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4. |
Faulty motor |
4. |
Replace motor |
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2. |
Motor overheated |
2. |
Determine cause of |
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overheating |
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Noisy |
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Motor bearings dry |
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Oil bearings |
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• Bearings dry |
• Oil bearings |
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2. Wheel rubbing blower |
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Inspect and realign |
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3. |
Motor locked |
3. |
Replace motor |
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housing |
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(Unplug unit) |
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3. |
Loose parts |
3. Tighten loose parts |
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Inadequate |
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Insufficient air exhaust |
1. |
Open windows or |
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air delivery |
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doors to increase air |
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Excessive |
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Inadequate exhaust |
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Open doors or win- |
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with cooler |
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flow |
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humidity in |
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dows |
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running |
2. |
Pads plugged |
2. |
Replace pads |
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house |
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Inadequate |
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Inadequate exhaust in |
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Open windows or |
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cooling |
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house |
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doors to increase air |
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Musty or |
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Stale or stagnate water |
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Drain pan and clean |
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flow |
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unpleasant |
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in cooler |
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pads |
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2. |
Pads not wet |
2. |
Check water distribu- |
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odor |
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Pads not wetting |
2. |
Check water distribu- |
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tion system |
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properly |
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tion system |
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• Pads plugged |
• Replace pads |
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• Trough holes clogged |
• Clean |
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• Open spots in pads |
• Repack pads |
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• Pump not wetting |
• Replace or clean |
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• Trough holes or Dis- |
• Clean |
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properly |
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pump (Unplug unit) |
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tributor system clogged |
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• Insufficient water flow |
• Clean distribution |
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• Pump not working |
• Replace or clean |
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over pads |
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system and trough |
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properly |
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pump (Unplug unit) |
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openings |
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