Required Exhaust Openings
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 3790 CFM, model AD1C51 (3/4 hp) requires 7.6 square feet (1094 square inches) of opening (3790/1000 * 2 = 7.6). 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 7.6 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.
Maintenance
WARNING : Before doing any maintenance be sure power is off. At the time you remove either inspection panel be sure to unplug motor and pumps. This is for your safety.
Spring Start-Up
•Clean pads. A clean pad is more absorbent, efficient and will give more cool air. Annually, or when required, using a garden hose with nozzle, back wash to clean out the openings, then clean off the inlet face any scale or other obstruction to the passages. Slight scraping may be required to remove hardened scale.
•Change pads if necessary. The pads should be replaced after 5 years or if necessary. To change pads, remove top access panel, remove grill, and disconnect water delivery tube. Remove water distributor holder and lift out media sections. Replace with the same type media. You can purchase them from your dealer.
IMPORTANT: In order to get the best performance from your cooling pads, they must be installed properly. If you have pur- chased a pad with two equal angles, the following instructions can be disregarded. Pads must always be installed with the steeper flute angle sloping down
towards the air entering side (Fig. 7). The reason is simple. The steeper
angle puts more water on
the hot, dry, dirty side of the pad where it is needed
most. It also counteracts the tendency of the air to push the water toward the back of the pad.
• Check belt tension. A 3 lb. force should deflect the belt 3/4 inches (see Fig. 8). Readjust belt if needed.
•Oil bearings. The blower bearings
and cooler motor in this unit should be oiled with a few drops of
CAUTION: Do not over oil. Over oiling can cause motor burn out, due to excessive oil getting into motor winding.
•Clean water pump and dump pump. Cleaning both pumps is necessary once a year at
pump spout and check for any blockage. After cleaning, reinstall
the base onto the pump. Press |
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firmly to make sure it is secure. | Remove |
Reattach the pump to the mount | Base |
in the cooler using the plastic |
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retainer to ensure that the pump |
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will not overturn. Do not forget |
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to replace the spout and water | Impeller |
delivery tube onto the pump | Fig. 9 |
outlet. |
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.
•Unplug motor and pumps. When cooler is not used for extended periods unplug the motor and pumps from inside cooler.
•Cover unit. To protect the life of the finish, a cover for the unit is suggested in 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.
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