Essick Air FAD248, FAD242 Installation, Maintenance, Install overflow assembly. Remove

Fig. 3

Installation

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 start cooler until installation is complete and unit has been tested for rigidity.

CAUTION: This unit must be installed at a height of 10 feet or greater from the floor.

Electrical Installation

NOTE: Local building code regulations must be observed.

WARNING: Disconnect all electrical service that will be used for this unit before you begin the installation.

•Connect electrical. Cooler must be connected to the proper line current, voltage and cycle, as indicated on the decal located at the electrical service entrance. Connecting improper voltage to motor will void motor warranty. See the wiring diagrams (figures 8 & 9) on page 3 for wiring electrical connections.

NOTE: A separate 120 Volt, 60 Hz, 1 phase pump electrical circuit is required to maintain the integrity of the GFCI pump protection and to maintain the U.L. Listing of the evaporative cooler.

•Wire gage. The horse power, voltage, cycle, phase, current, and length of wire required from switch to motor will determine the gauge of wire to be used.

•Switches. Larger horsepower and three phase applications require switches (not supplied) of proper current capacity and should be installed by a competent electrician.

•Connect water supply line. A water supply line should be run to the cooler to supply an adequate amount of cold water to the unit. The amount of water each cooler uses will depend on the weather conditions in your area and the size of your unit. The hotter and dryer your climate and the higher the capacity of your unit, the more water will evaporate. For example: An FAD248 unit with a 2 hp motor will use approximately 85 gallons per hour in a hot and dry climate like Las Vegas on a 105°F day with 10% humidity. The same unit in a cooler climate with 95°F and 20% humidity would use approximately 63 gph.

NOTE: Do not connect the water supply line to any soft water applications.

•Install float valve and fill pan. Refer to Fig. 3. Remove items 1,

2, 3, and 4. Insert float body (5) through hole in back post panel as

shown. Install washer (1) and nut
(2). Tighten to keep float from				2	3 4
turning. Place nut (4) and ferrule		5	1
(3) on water supply line. Con-
nect to float fitting and tighten until	7
water tight. Loosen screw (6) and			6
adjust rod (7) until water level is		8

within 1" of top of reservoir. Tighten screw (6). Slide float shield (8) up over float body (5) until it snaps into place.

•Bleed-Off.Use of the bleed-off kit is recommended to prevent scale build up by bleeding off small amounts of circulating water during operation. Do not add any type of water treatment chemi- cals to the water.

• Power Supply box. The

power supply box is lo-

cated in the upper inside

of the divider channel.

Power

Supply

Box

Maintenance

WARNING: Before doing any maintenance be sure to dis- connect from power source. This is for your safety.

Remove the cover to ac-

cess wiring. (Fig. 1).

Connect wiring in box to

power supply wiring as

per wiring diagrams.

Cover

Fig. 1

Spring Start-Up

• Check belt tension. A 3 lb. force

should deflect the belt 3/4 inches

(see Fig. 4). Readjust belt if

needed.

3 Lb.

3/4 Inches

WARNING: Make sure that cooler cabinet is properly grounded to a suitable ground connection for maximum safety.

Water Connection

•Pumps. Plug the pumps into the pump receptacles. There are metal cord retaining clips on the corner post and motor cross braces for retaining the pump cords.

CAUTION: The pump cord must be secured to prevent it from dropping into water reservoirs or contacting moving com- ponents.

• Install overflow assembly. Remove
nut and place nipple through the hole	Overflow Pipe
in the pan, with the rubber washer
between the pan and the head of the	Nipple

To adjust belt, loosen the two

hinge nuts and the locking nut on

the adjusting bolt as shown in

figure 5. Loosen or tighten the

adjustment nut until the belt is

at the right tension. Lock the

motor plate in place by tighten-

ing the locking nut and then

tighten the 2 hinge nuts.

• Grease bearings. The shaft

bearings in this unit should be

greased once a year with a good

grade of ball bearing grease.

Fig. 4

Adjustment Nut

Lock-Nut

Hinge

Nut

Hinge	Fig. 5
Nut

drain nipple (Fig. 2). Screw on nut	Rubber Washer
and draw up tight against bottom of	Bottom Pan
pan. Insert overflow pipe in nipple	Nut
to retain water. Overflow pipe may	Fig. 2
be removed to drain pan when neces-

sary. A garden hose may be screwed on the drain nipple to drain water away from your unit.

•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.

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