The Home Depot 3000 DD Evaporative Cooler Instruction Manual

The Home Depot 3000 DD Evaporative Cooler Instruction Manual

Read And Save These Instructions

Safety Rules

1. Read instructions carefully.
2. Electrical hook up should be done by a qualified electrician, so that all electrical wiring will conform to your local standards.
3. Always turn OFF POWER and UNPLUG motor and pump inside the cooler before installing or performing any maintenance.
4. Your cooler will run on either 120V or 240V A.C., single phase, 60 Hz (cycle) current.
5. Motor and pump have a grounded, Molded plug and an automatic thermal overload switch which will shut motor off when it overheats. The motor will restart automatically when it cools down.
6. Pump receptacle is for grounded evaporative cooler pump only. Do not plug anything else into receptacle.
   ⚠ WARNING: To reduce the risk of fire or electric shock, do not use this fan with any “solid-state fan speed control device.”

Evaporative Cooling

Evaporative cooling is nature’s way of cooling. When air is moved over a wet surface, water is evaporated and heat is absorbed. When stepping out of a swimming pool with the wind blowing, evaporative cooling makes you feel cool, even though the air may be warm. The human body itself is cooled primarily by the evaporation of perspiration.

This unit works on the same principle. Air is drawn across wet filter pads where the air is cooled by evaporation and then circulated throughout the building. It is this combination of cooled air and the movement of air over the skin which makes it feel cool.

Unlike refrigeration systems which recirculate the air, an evaporative cooler continually brings in fresh air while exhausting old air. You are completely replacing the air every 2 to 4 minutes by opening windows or doors or a combination of both. The air is always fresh, not stale, laden with smoke and odors as happens with refrigerated air conditioning.

Operation

For the best cooling performance, if the pads are dry, pre-wet the pads by running the pump for a few minutes before starting the blower.

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 dampers to provide completely automatic operation.

Open Windows To Exhaust Air

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.

CFM 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 3654 CFM, model 4001 DD with a 1/2 hp motor requires 7.3 square feet (1052 square inches) of opening (3654/1000 * 2 = 7.3). 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 7.3 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

5.  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.

Installation

NOTE: The pump comes installed. The belt, motor pulley, and motor cord and float are included in the cabinet, the motor is sold/shipped separately.
⚠ 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.

• Install Duct Adapters. If desired, a 4 piece duct adapter is available as an optional accessory. Call 1-800-643-8341 to obtain these from the factory. Align the holes in the duct adapter to the holes in the blower opening and attach using the provided screws (see Fig. 1). Repeat for all four sides. Note: All 4 pieces are identical except for models 5000SD & N55/65S which have an offset piece which attaches to the bottom of the outlet. To install this offset piece, remove the screws holding the cut-off plate and slide the offset duct adapter between the blower opening and the cut-off plate. You may need to loosen other screws to do this. Line up the holes and secure with the screws previously removed.

Motor Installation

• Install motor cord. For typical 120V operation, connect motor cord to motor using the following color code: Black – Hi, Red – Low, White – Com., Green – Ground. (See Wiring Diagrams)
• Mount motor. Install blower motor in the motor mount yokes, adjusting the yoke if necessary. Fasten with the provided mounting clips (see Fig. 2).
• Install pulley. Install the adjustable motor pulley so that it aligns with the blower drive pulley (see Fig. 3) and tighten set screw.

Electrical Installation
⚠ 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 located in the upper inside corner of the cooler cabinet. Remove the two screws and remove the junction box (Fig. 4). Slide receptacles into slots in junction box.
• Hook up electrical. Electrical 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 diagrams for 120V and 240V installations. Note: Clip pump cord onto cord clip located on the bottom of the junction box to keep cord our of the water.

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 the cooler cabinet is properly grounded to a suitable ground connection for maximum safety.

Wiring Diagrams

Water Connection

• Install overflow assembly. Place drain 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 the overflow pipe in the nipple to retain water. The overflow pipe may be removed to drain the pan when necessary. A garden hose may be screwed on the drain nipple to drain water away from your unit.

• Connect water supply line. Find the closest supply of water. Use a saddle valve (Fig. 7) to connect 1/4″ tubing to the cold water supply or use a Sillcock and water valve connected to an outside faucet (Fig. 8). Place the nut and ferrule on the tubing and tighten the nut until water tight.
  IMPORTANT: Do not connect the water supply to any soft water applications. Soft water will cause corrosion and decrease the life of the cooler.

• Install float and attach water line to float. The float may be installed in either the corner post or bracket (see Fig. 9). If you have model 3000DD/N31D then the float should be mounted to the bracket. Refer to figure 10 for installation instructions. Insert the float (1) thru the hole in the corner post or bracket. Install the washer (2) and nut (3). Tighten to keep the float from turning. Place the nut (5) and ferrule (4) on the water supply line. Connect to float fitting and tighten until water tight.

• Fill pan. Allow water to fill to within 1″ of top of pan and adjust float to maintain this water level. This can be accomplished by bending the float rod.

• Level water troughs. Operate pump until pads are saturated. Check each trough to see if water is evenly dispersed in the trough. If they are not, loosen adjustment bolts and level trough. Retighten bolts. Check to see that all pads are saturated with water and that there are no dry spots or openings in the pads.

Bleed-Off
Installation of the bleed-off kit is recommended to increase the life of the cooler. A bleed-off system is designed to prevent scale build up by continually removing a small percent of the water in the pan.

• Install Bleeder Tee and Tubing. Refer to figure 11. Cut the pump Pump Hose hose and insert the barbed ends of the bleeder tee into each cut end. Insert one end of the bleeder tubing onto the bleeder tee and run the other end out of the cooler through the overflow pipe.
  Note: A restrictor clamp is provided which, if desired, may be installed onto the bleeder tubing to restrict the amount of water being bleed off. The amount of water to bleed off depends on the quality of the water in your area. Start with 1-2 gal/hr and increase if needed.

Amperage Draw And Belt Tension
This unit is equipped with an adjustable motor drive pulley for adjusting the blower wheel speed to the proper loading on different duct systems. It is important that the motor drive pulley is adjusted to correct size to assure maximum air delivery without damage to the motor. Be sure to follow these instructions carefully.

• Adjust drive pulley. After the unit is completely installed, adjust the drive pulley to the least diameter and adjust belt tension. See the maintenance section for adjusting belt tension.
• Start cooler. Install all pad frames, start pump, and allow to operate until pads are wet.
• Check amperage. With pads wet and unit started, check amperage draw with an amperage meter.
• Adjust pulley if necessary. If amperage draw is less than motor rating, turn off electrical power and remove pad frame. Unplug motor inside cooler, this will protect you from someone turning on unit while you are working inside. This should be done for your safety. Adjust pulley to a larger diameter and readjust belt tension, plug motor in, install pad frame, and retest amperage draw. Repeat this process until correct amperage draw is attained. Increasing motor pulley diameter increases amperage draw. Decreasing motor pulley diameter decreases amperage draw (see Fig. 12).

⚠ CAUTION: Do not operate cooler with larger amperage draw than specified on motor plate.
NOTE: No attempt should be made to completely install this unit without the aid of an electrician or someone familiar with testing amperage draw. Failure to comply with these instructions may void your warranty.

Maintenance

⚠ WARNING: Before doing any maintenance be sure power is off. At the time you remove a pad frame be sure to unplug motor and pump. This is for your safety.

Spring Start-Up

• Clean pump. Cleaning the pump is necessary once a year at start-up. For your safety, turn unit off and unplug motor and pump. Remove the pump from the mount slot. Remove the base of the pump (Fig. 13). 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 not forget to replace the spout and water delivery tube onto the pump outlet.

• Oil bearings. The blower bearings and cooler motor in this unit should be oiled with a few drops of non-detergent 20/30 weight oil once each year. The motor does not need oil if it has no oil lines for oiling. Motors that have no lines are lifetime oiled at the factory and require no further oiling for the life of the unit.

⚠ CAUTION: Do not over oil. Over oiling can cause motor burn out, due to excessive oil getting into motor winding.

• Change Pads. The 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.
• Check belt tension. A 3 lb. force should deflect the belt 3/4 inches (see Fig. 14). Readjust belt if needed.
• Check bleed-off valve to be sure it is not clogged.

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.
• Unplug motor and pump. When cooler is not used for extended periods, unplug the motor and pump 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.

Troubleshooting

Register your product online atwww.championcooler.com/index.php/cooler- warranty-registration

Limited Warranty

This warranty is extended to the original purchaser of an evaporative cooler installed and used under normal conditions. It does not cover damages incurred through accident, neglect, or abuse by the owner. We do not authorize any person or representative to assume for us any other or different liability in connection with this product.

Terms And Conditions Of The Warranty
For Eight Years from date of Purchase, we will replace the original base assembly if water leakage should occur due to rust out.

For One Year from date of Purchase, we will replace any original component provided by Champion Cooler which fails due to any defect in material or factory workmanship only.

Exclusions From The Warranty
We are not responsible for replacement of cooler pads. These are disposable components and should be replaced periodically. We are not responsible for any incidental or consequential damage resulting from any malfunction.

We are not responsible for any damage received from the use of water softeners, chemicals, descale material, plastic wrap, or if a motor of a higher horsepower than what is shown on the serial plate is used in the unit.

We are not responsible for the cost of service calls to diagnose cause of trouble, or labor charge to repair and/or replace parts.

How To Obtain Service Under This Warranty
Contact the Dealer where you purchased the evaporative cooler. If for any reason you are not satisfied with the response from the dealer, contact the Customer Service Department: 5800 Murray Street, Little Rock, Arkansas 72209. 1-800-643-8341. E-mail: info@championcooler.com.

This limited warranty applies to original purchaser only.

Replacement Parts List

When ordering parts, please be sure to furnish the following information on all orders. Failure to do so may delay your order.

1. Cooler model number
2. Cooler serial number
3. Motor HP
4. Description and part number
5. Date of purchase

• See motor specification table. Motors sold separately
  † 230V motor cord is optional and not supplied with cooler
  NOTE: Standard hardware items may be purchased from your local hardware store.

Parts Drawing

General Specifications

Parts Drawing

Motor Specifications

• 1/2” Bore x Adjustable O.D.
  ** Amperage shown is from National Electric Code. Use motor nameplate for more accurate amp reading.

Replacement Parts List

When ordering parts, please be sure to furnish the following information on all orders. Failure to do so may delay your order.

1. Cooler model number
2. Cooler serial number
3. Motor HP
4. Description and part number
5. Date of purchase

• See motor specification table. Motors sold separately
  † Optional Accessory. Not included with unit
  § 230V motor cord is optional and not supplied with cooler
  NOTE: Standard hardware items may be purchased from your local hardware store.

References

• Champion Cooler | Evaporative Aspen Media Coolers
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