Dial 1629958 Evaporative Cooler Motor Instructions

COLLER PARTS
COOLER
MOTOR

INSTRUCTIONS

WARNING : FAILURE TO FOLLOW INSTRUCTIONS AND USE SAFE ELECTRICAL PROCEDURES COULD RESULT IN SERIOUS INJURY SUCH AS SHOCK
OR ELECTROCUTION.

SAFETY PRECAUTIONS:

1.  Disconnect electrical power at the source before working on or near a motor or its connected load.
2. This motor must be grounded by attaching the power supply green ground wire to the motor terminal green screw.
3.  Caution: Motor may stop and restart without warning. If the motor is overloaded it will become unusually hot and the automatic internal overload switch will cause the motor to stop. The motor will then automatically restart after cooling down. An overloaded motor will cycle on and off. If this occurs, see the Motor Pulley Adjustment section.
4. Install all wiring, fusing, and grounding in accordance with National Electrical Code, local requirements, and according to cooler manufacturers’ instructions.
5. Keep all parts of the body and lose clothing clear from belts, pulleys, and other exposed parts at all times.

MOTOR INSPECTION

1.  Examine the motor thoroughly to be sure it was not damaged in shipment.
2. Check the motor shaft. It should rotate freely when turned by hand.
3. Check nameplate rating. Voltage and frequency must match the electrical power source. Motor H.P. must be suitable for your cooler size.

MOTOR PULLEY SELECTION
The motor pulley must be the same size and type recommended by the cooler manufacturer. Do not use a larger pulley size. Recommended motor pulley sizes are:

with 5/8″ bore.

IMPORTANT: Too large of a motor pulley will overload the motor and cause it to cycle on and off. If this occurs, see the Motor Pulley Adjustment section.

INSTALLATION INSTRUCTIONS

1. Motor Mounting:
Place the motor in the motor mounting bracket with vent holes down and motor label up. Be sure to groove in rubber mounting ings seats securely on the mounting bracket. Tighten clamps.
2. Motor Pulley and Blower Pulley Alignment:
Pulleys must be aligned per Figure 1. If necessary, loosen pulley set screws with a 5/32 Allen wrench. Each set screw must seat securely on a flat shaft.

3. Belt Tension:
Adjust the belt to deflect 1/2 to 3/4 inch at the center of the span as per Figure 2. Readjust belt tension after any pulley adjustment. Replace worn or damaged belts.

Electrical Connection:

Disconnect electrical power source prior to making any connections.

115 VAC Motors:
A. Connect green wire (ground) to the green screw of the motor housing. B. One Speed Motors: Connect white wire (common) to the white terminal and black wire (source) to the black terminal per Figure 3.

Two Speed Motors:
Connect white wire (common) to the white terminal, black wire (sourcehigh speed) to the black terminal (HI) and red wire (source-low speed) to red terminal (LO) per Figure 4. Caution: Do not apply voltage across HI to LO.

230 VAC Motors:
A. Connect green wire (ground) to the green screw of the motor housing. B. One Speed Motors: Connect orange wire (first leg of source) to the white terminal and black wire (the second leg of source) to black terminal Figure 5.

Two Speed Motors:
Connect orange wire (first leg of source) to the white terminal, black wire (the second leg of source-high speed) to the black terminal (HI), and red wire (the second leg of source-low speed) to the red terminal (LO) per Figure 6. Caution: Do not apply a voltage across HI to LO. Motor Pulley Adjustment:

Important: This motor will work only if (1) the correct size pulley is used (see front); (2) movable half of the adjustable pulley is opened 2-1/2 to 5 turns (see below); (3) belt tension is correct (see front).
Warning: Disconnect electrical power source prior to working on cooler.
1. Loosen set screw on movable half of pulley with 5/32 Allen wrench.
2. Unscrew movable half of pulley 2-1/2 to 5 full turns from the closed position.
The pulley set depends on the resistance to air flowing out the cooler.

5. Motor Pulley Adjustment (Continued)
3. Re-tighten set screw on movable half of pulley.
4. Re-adjust belt tension (see Belt Tension).
5. Operate cooler with pad frames in place.
a. If the motor runs continuously, installation is complete.
b. If the motor stops after a period of time (and restarts later) the motor is overloaded and the movable half of the adjustable pulley must be opened 1/2 or more turns. Repeat steps (1) to (5).
Note: To increase cooler efficiency, during step 2, use an ammeter to adjust the pulley diameter until the motor amperage draw is equal to, or less than, the amperage on the motor nameplate.

Limited Warranty

1.  Replacement made through your authorized dealer or retailer within one year from the date of sale with proof of purchase.
2.  Reason for replacement, purchase date, failure date, and sales receipt must accompany all motors returned for replacement.
3.  Warranty is void if the motor has been abused, altered, water damaged, or improperly installed.
4.  We do not pay the cost of a service call at the site of installation to diagnose cause of trouble or the cost of labor or transportation to replace a defective motor.
5. We are not responsible for any incidental or consequential damage resulting from any malfunction unless required to do so by State Law.

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