Essick Air AS2C71, AS1C5112 Cooler Installation, Water Connection, Thermostat Installation

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Cooler 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: Do not screw or drill within 5 inches of the bottom of the wet module. You could puncture the reservoir.

CAUTION: If the unit is supported with legs at each corner, the middle of the unit where the two sec-

tions join must be supported as well.

 

Wet

NOTE: For ease of installation you can

Module

separate the wet module from the blower

Mounting

module by removing the 4 bolts from the wet

Bolts

module side (Fig. 1). Remember to unplug

 

the pump and drain pump before separating

Fig. 1

the modules.

should be adequately protected against overloads and short circuits.

Note: Electrical installation should be performed by a qualified electrician. Be sure to follow all National and Local Electrical Codes when installing this cooler.

Install weatherproof switch box. Located inside the unit in a plastic bag is a switch box and cover, a chase nipple, a seal ring and a toggle switch. Remove the electrical junction box (Fig. 5) which is mounted on the inside of the center panel. From inside the unit, insert the chase nipple

through the electrical access

 

Seal Ring

Electrical

hole. Slide the seal ring over

 

Junction

Chase

Box

the chase nipple. Mount the

Box

Nipple

 

switch box to the outside of the

 

 

 

unit by threading the chase nip-

 

 

 

ple into the switch box. Run

 

 

 

the three switch leads through

 

 

 

the nipple and into the switch

 

 

 

box and reinstall the junction

Fig. 5

 

 

box. Connect the green ground

 

 

lead to the ground screw in the

 

 

 

Water Connection

Install overflow assembly. Remove nut and place nipple through the hole in the pan, with the rubber washer be- tween the pan and the head of the drain nipple (Fig. 2). Screw on nut and draw up tight against bottom of pan. Insert overflow into nipple to retain water. The overflow pipe comes from the fac- tory connected to the dump pump hose. The overflow pipe may be removed to drain pan when necessary. A garden hose may be screwed on the drain nipple to drain water away from your unit.

Drain Pump

Hose

Overflow Pipe

Nipple

Rubber Washer

Bottom Pan

Nut

Fig. 2

switch box.

Supply power to unit. Run power to the external switch box and connect to the two poles of the toggle switch. Connect the gray and white leads from the cooler electrical box to the two poles of the toggle switch. Refer to the appropriate wiring diagram to complete the electrical installation of your cooler. Secure the switch into the switch box and install the gasket and switch cover.

CAUTION: All openings in the external switch box must be sealed to prevent water from entering the switch box.

CAUTION: Pump receptacles are for grounded evaporative cooler pumps only. Do not plug anything else into receptacle.

WARNING: Make sure that cooler cabinet is properly

Connect water supply line. Install

a sillcock and water valve on faucet

as shown by figure 3. Place the nut

and ferrule on the tubing and tighten

the nut until water tight. NOTE:

Do not connect the water supply to

Faucet

SupplyWaterValveFerruleNut

grounded to a suitable ground connection for maximum safety.

Thermostat Installation

1) Find a suitable location for the wall thermostat (away from sources

of heat, sunlight, or ventilation, and between 4 and 6 feet from the

floor). The thermostat may be mounted to a standard electrical

any soft water applications.

Install float valve and fill pan.

Refer to Fig. 4. 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 turn-

ing. Place nut (4) and ferrule (3) on

water supply line. Connect to float

fitting and tighten until water tight.

Bend rod (6) to adjust float until

water level is about 1 inch below

the top of the overflow pipe. Slide

float shield (7) over float body (5)

until it snaps into place.

Sillcock

Fig. 3

7

1

5

6

Fig. 4

2

3 4

box.

2) Route an insulated four-conductor thermostat cable (or similar)

from the Control Box inside the cooler to the thermostat electrical

box. This cable is not supplied. WARNING: The thermostat

cable should not be routed next to or enter the cabinet through

the same inlet as the power supply wire.

3) Connect the thermostat wires to the terminals on the back of the

wall control and to the terminals located on the left side of the

control box in the unit. Make sure to follow the color code found

next to each terminal.

Amperage Draw And Belt Tension

This unit is equipped with an adjustable motor drive sheave 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.

Electrical Installation

WARNING: Disconnect all electrical service that will be used for this unit before you begin the installation and leave it discon- nected until the installation is complete.

The control box is factory wired and installed for either 120V or 230V operation depending on the model you purchased. The supply power

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.

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Contents Evaporative Cooling Table Of ContentsSafety Rules Electrical Installation Cooler InstallationThermostat Installation Water ConnectionWiring Diagrams Volt Thermostat OperationMaintenance Required Exhaust OpeningsProblem Possible Cause Remedy Troubleshooting GuideLimited Warranty AD1C51 AD1C5112 AD1C71 AD2C51 AD2C5112 AD2C71Replacement Parts / Piezas De Repuesto AS1C51 AS1C5112 AS1C71 AS2C51 AS2C5112 AS2C71Replacement Parts / Piezas De Repuesto 110372-1 AU1C7112, AU2C7112 Lea Y Conserve Estas Instrucciones Reglas De SeguridadEnfriamiento Por Evaporación Instalación Del Termostato Instalación Del EnfriadorConectar El Agua Instalación EléctricaFuncionamiento Del Termostato Voltios Esquemas Del Cableado¿Cuanto Debe Abrir Las Ventanas? MantenimientoGarantía Limitada Problema Causa Posible RemedioLa Localización De Averías