Essick CD30, CD36 Installation Manual And Owner's Manual

Installation

Guide

And

Owner’s

Manual

Model:

CD30
CD36

READ

AND

SAVE

THIS

INSTRUCTION

MANUAL

5800 Murray Street, Little Rock, AR 72209

Important: When receiving and unpacking, note

any damage on the freight bill. Any damage

claim must be filed with the carrier.

Power pack is separate – do not lose.

ESSICK AIR PRODUCTS

800-643-8341

Purchased From:______________________

Date of Purchase:_____________________

Manual #: 70790

INSTALLATION OF EVAPORATIVE COOLERS

Preparation:

1. All electrical and ductwork must comply with local and federal codes.

2. Make arrangements to get the cooler to the roof (crane, hoist, etc.).

Location:

1. Plan ahead to avoid costly problems later. Avoid installation near kitchen exhausts and vent pipes, so the cooler will
not draw in fumes and odors.

2. Ensure that the roof or stand is strong enough to support the cooler. Operating weight, when the cooler is full of water,
is significantly heavier than shipping weight. CD30 operating weight: 1538 lbs. CD36 operating weight: 1588 lbs.

3. The cooler must be located so that it has a constant supply of fresh air. The cooler does not recirculate air.

Mounting:

1. The roof opening should be 70” x 46”.

2. It is recommended that you use the curb design shown on page 5.

3. The duct work or plenum box may be mounted to the curb.

Ductwork:

1. The most important rule in designing duct systems is: AN EVAPORATIVE COOLER DEPENDS ON A LARGE
VOLUME OF AIR COMING OUT OF THE DUCTWORK AT HIGH VELOCITY IN ORDER TO COOL PROPERLY.

2. DO NOT reduce the discharge opening of the cooler.

3. DO NOT undersize the ductwork and make it much smaller than the discharge opening.
In most cases, air conditioning ductwork is too small for a cooler.

4. Extra long ducts cause static pressure and diminish airflow. They, also, pick up heat and
diminish cooling.

5. Sharp or abrupt bends hinder air movement.

6. Poorly designed ceiling diffusers will ruin an otherwise successful installation. Install
diffusers that are specifically designed for use with evaporative coolers.

Motor Installation:

Now that the cooler is in place, mounted and level, remove the motor from its box and
examine it for damage. Make sure that the voltage, phase, etc. are correct. Installation
hardware can be found in the cooler installation bag. Mount the motor as shown. Do not
tighten the mounting bolts until after the belts are installed and tightened.

Motor Pulley Installation:

The motor pulley will be shipped with the motor.

1. Using a 5/32” hex wrench, loosen the set screws on either side of the

Adjustment

Set Screw

pulley and the one in between the jaws of the pulley.

2. Close the pulley (Hold the center of the pulley and screw the outside
jaws in towards the center).

3. Open each side of the pulley 3 turns.

4. Tighten the set screws to lock the moveable jaws in place. Tighten set

screws onto flat area, otherwise thread damage will occur.

5. Slide the pulley onto the motor shaft with the keyways aligned.

6. Insert the key.

7. Align motor pulley and blower pulley.

8. Tighten the center set screw to lock into place.

Belt Adjustment:

1. Place the belts over the motor pulley and roll them over the blower pulley.

2. Slide the motor back on its mount until belts are properly tensioned (1 to 1 ½” of
deflection with 5 pounds pressure applied).

3. Tighten motor mount bolts.

Adjustment
Set Screw

1" to 1 1/2"

Deflection With

5lbs Pressure

2