White Rodgers 8A18Z-2 installation instructions Operator Save these instructions for future use

WHITE-RODGERS	8A18Z-2
	Evaporative Cooler Control
	INSTALLATION INSTRUCTIONS

Operator: Save these instructions for future use!

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

DESCRIPTION

This Evaporative Cooler Control has a rain-proof enclo- sure and can be used with either 120 VAC or 240 VAC systems. It was designed for use with the White-Rodgers 1F51-619 or 1F51W-619 Thermostat to provide auto- matic temperature and ventilation control and remote fan speed selection of an evaporative cooler with 2-speed fan. The pump relay is automatically operated to allow wetting of cooler pads before starting fan.

If in doubt about whether your wiring is millivolt, line, or low voltage, have it inspected by a qualified heating and air conditioning contractor, electrician, or someone familiar with basic electricity and wiring.

Do not exceed the specification ratings.

All wiring must conform to local and national electrical codes and ordinances.

This control is a precision instrument, and should be handled carefully. Rough handling or distorting compo- nents could cause the control to malfunction.

PRECAUTIONS

!CAUTION

To prevent electrical shock and/or equipment damage, disconnect electric power to system, at main fuse or circuit breaker box, until installation is complete.

!WARNING

Do not use on circuits exceeding specified volt- age. Higher voltage will damage control and could cause shock or fire hazard.

WHITE-RODGERS DIVISION

EMERSON ELECTRIC CO.		PART NO. 37-5918B
	Printed in U.S.A.	Replaces 37-5918A
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398		9909