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Champion 10DD Owner's Manual

Provided by Appliance Factory Parts

Safety Instructions

Read instructions carefully.
Disconnect all electrical service before installation.
Electrical hookup must be done by a qualified electrician.
Ensure the cooler cabinet is properly grounded.
Connect to proper line current, voltage, and cycle as specified on the motor plate.
Do not allow the pump to tip over or become submerged.
Always disconnect power before installing or performing maintenance.

Operation

For optimal cooling, pre-wet the pads by running the pump for a few minutes before starting the blower. The coolers can be used for ventilation without water. The water pump can be turned off when outside air is cool or humidity is high.

IMPORTANT: For efficient cooling, exhaust stale air from the building by opening windows/doors or using exhaust fans located away from the cooler. Ensure at least 2 square feet of exhaust opening per 1000 CFM.

Installation

[Caution]: Ensure the mounting surface is strong enough to support the cooler's operating weight.

[Caution]: Never plug in the cooler until installation is complete and rigidity is tested.

[Caution]: Ensure all bolts are securely tightened before starting the cooler.

Ductwork

Refer to the General Specification table for duct opening dimensions. For down discharge models (10/12DD, 14/21DD), the duct must fit inside the opening and be slightly smaller. For side discharge units (75/85DD, 95DD), the duct can fit inside or outside the flange. Size side discharge ducts larger than the opening to fit over the flange.

Note: Curbs are not provided; the installer is responsible for providing them.

Motor Installation

Mount the motor by sliding carriage bolt heads into adjustable channels, aligning them with the motor base holes and the blower pulley. Secure with provided hardware. Ensure all bolts are tight.
Install the motor pulley, aligning it with the blower drive pulley and tightening the set screw.

Electrical Installation

NOTE: Observe local building codes.

WARNING: Disconnect all electrical service before installation.

Electrical Supply: Connect to proper line current, voltage, and frequency as per the motor specification plate. Refer to wiring diagrams for connections. Connecting improper voltage will void the motor warranty.
Wire Sizing: Determine conductor sizes based on motor loads and run length per national and local codes.
Switches/Contactors: Motors require switches or contactors of proper current capacity, sized and installed by a qualified electrician.

WARNING: Ensure the cooler cabinet is properly grounded for maximum safety.

Water Connection

Overflow Assembly: Install the nipple through the pan hole with the rubber washer between the pan and nipple head. Secure with the nut. Insert the overflow pipe into the nipple to retain water. The overflow pipe can be removed to drain the pan. A garden hose can be attached to the drain nipple.
Pump: Secure the pump to the mounting bracket to prevent tipping. For 10/12 and 14/21 models, use the top mounting screw. For 75/85 and 95 models, slide the pump into the bracket slot and secure with the plastic retainer.
Water Supply: Connect a 3/8 inch tube to the float valve. Do not use water from a water softener.
Float Valve: Install the float valve to the bracket and attach the water supply line. (Note: 75/85 and 95 units have the float valve pre-installed).
Filling Pan: Turn on water supply, check for leaks. Allow water to fill to 1 inch below the pan top. Adjust float rod screw to set water level.
Water Troughs: Run the pump until pads are saturated. Check water distribution in troughs; loosen adjustment bolts and level if uneven. Ensure all pads are saturated and have no dry spots.
Bleed-Off: A bleed-off kit is recommended to prevent scale by draining small amounts of circulating water. Do not add water treatment chemicals.

Pulley and Belt Adjustments

Pulley Adjustment: Use an ammeter to check motor amperage. Adjust the pulley until amperage draw is just below the motor nameplate specification. Loosen the set screw, rotate the sheave, and tighten the set screw over a flat area. Increasing pulley diameter increases amperage; decreasing it decreases amperage. Recheck belt alignment. [Caution]: Ensure amperage does not exceed the maximum allowed; improper adjustment can overload and burn out the motor.
Belt Tension: Loosen motor mount bolts and slide the motor back to tension the belt. A 3 lb force should deflect the belt 3/4 inches. Retighten motor mount bolts. Do not adjust the pulley to tighten the belt.

Maintenance

WARNING: Disconnect from power source before performing any maintenance.

Spring Start-Up

Belt Tension: Check and readjust belt tension if necessary.
Oil Bearings: Oil blower and motor bearings annually with a few drops of non-detergent 20/30 weight oil. Motors without oil lines are lifetime lubricated. [Caution]: Do not over oil, as it can cause motor burnout.
Change Pads: Replace pads once or twice per season for optimal absorbency and efficiency.
Clean Pump: Clean the pump annually. Disconnect power, remove the pump from its bracket, and clean the pump and impeller. Check for blockages. Reinstall the pump, ensuring it is secure.
Bleed-Off: Check the bleed-off valve for clogs.

Winter Shut Down

Drain Water: Drain all water from the cooler and supply line for prolonged periods or at the end of the season. Keep the water line disconnected to prevent freezing.
Disconnect Power: Disconnect from power supply for extended periods of non-use.
Cover Unit: Use a cover to protect the unit's finish during extended periods of non-use.

Following these suggestions will ensure many years of efficient service.

Troubleshooting Guide

Problem	Possible Cause	Remedy
Failure to start or no air delivery	1. No electrical power to unit • Fuse blown • Circuit breaker tripped 2. Belt too loose or tight 3. Motor overheated • Belt too tight • Blower bearings dry • Motor bearings dry • Motor pulley diameter too large 4. Motor locked	1. Check power • Replace fuse • Reset breaker 2. Adjust belt tension 3. Determine cause of overheating • Adjust belt tension • Oil blower bearings • Oil motor bearings • Adjust pulley to correct diameter 4. Replace motor
Inadequate air delivery with cooler running	1. Insufficient air exhaust 2. Belt too loose 3. Pads plugged 4. Insufficient water flow over pads	1. Open windows or doors to increase air flow 2. Adjust belt tension or replace if needed 3. Clean pads 4. Clean water distribution system and trough openings
Musty or unpleasant odor	1. Stale or stagnate water in cooler 2. Pads not wetting properly • Trough holes clogged • Pump not working properly • Insufficient water flow over pads	1. Drain pan and clean pads 2. Check water distribution system • Clean • Replace or clean pump (Unplug) • Clean distribution system and trough openings
Motor cycles on and off	1. Low voltage 2. Excessive belt tension 3. Blower shaft tight or locked 4. Bearings dry 5. Motor pulley diameter too large causing motor overload 6. Faulty motor	1. Check voltage 2. Adjust belt tension 3. Oil or replace bearings (Disconnect unit) 4. Oil bearings 5. Adjust pulley so full load ampere rating of motor is not exceeded 6. Replace motor
Noisy	1. Bearings dry 2. Wheel rubbing blower housing 3. Loose parts	1. Oil bearings 2. Inspect and realign (Disconnect unit) 3. Tighten loose parts
Inadequate cooling	1. Inadequate exhaust in house 2. Pads not wet • Pads plugged • Open spots in pads • Trough holes clogged • Pump not working properly	1. Open windows or doors to increase air flow 2. Check water distribution system • Clean pads • Repack pads • Clean • Replace or clean pump (Unplug)
Excessive humidity in house	1. Inadequate exhaust	1. Open doors or windows

Parts Lists and Diagrams

The manual includes detailed parts lists and exploded view diagrams for various models (10/12 SD, 14/21 SD; 10/12 DD, 14/21 DD; 75/85 DD, 95 DD; 75/85 SD, 95 SD). These diagrams visually break down the cooler components, and the corresponding parts lists provide part numbers and descriptions for ordering replacements. Key components include top and bottom pans, louvered sides, corner posts, water troughs, pads, pad retainers, water distributor assemblies, pumps, blower wheels, shafts, bearings, pulleys, belts, motor mounts, blower housing, and overflow assemblies.

The manual also contains detailed Motor Specifications, listing HP, motor phase, speed, voltage, shaft size, drive belt, and motor sheave for different models. General Specifications provide cabinet dimensions and duct opening sizes for various cooler models.

Wiring diagrams are provided for 120V, 240V, and 3-phase electrical supply configurations, illustrating typical connections for blower motors, pump motors, and control contacts. These diagrams emphasize the need for qualified electricians and adherence to local electrical codes.

Limited Warranty

Champion offers a limited warranty for its evaporative coolers. The base assembly is warranted for five years against water leakage due to rust-out. Original cabinet components are warranted for one year against defects in material or workmanship. The warranty excludes consumable items like pads and does not cover damage from accident, neglect, abuse, or improper use (e.g., water softeners, incorrect motor horsepower). For service, contact the dealer where the cooler was purchased, or contact Champion Customer Service at 5800 Murray Street, Little Rock, Arkansas 72209, 1-800-643-8341, or info@championcooler.com.

Models: 10DD, 10DD Evaporative Cooler, Evaporative Cooler, Cooler

File Info : application/pdf, 17 Pages, 1.23MB

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References

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