York 12 SEER H*AH024 - 60 owner manual Programmable Electronic Thermostats, Congratulations

035-17414-000 REV A (1200) 550.38-O1Y

Congratulations . . .

On your purchase of one of the most versatile comfort conditioning systems available in the air conditioning industry.

This Stellar series high efficiency system has been precision designed, manufactured of high quality materials and has passed many vigorous inspections and tests to ensure years of satisfactory service.

This booklet is meant to increase your understanding of your system, tell you how to operate it efficiently and how to obtain the greatest measure of comfort at the lowest operating expense. Please read this booklet thoroughly.

We appreciate your interest in our products and your decision to purchase our system. Enjoy your comfort.

Y2K COMPLIANCE

All York thermostats and system control boards for the Stellar™ series are Y2K compliant.

THERMOSTATS

YOUR KEY TO COMFORT

Though thermostats may vary widely in appearance they are all designed to perform the same basic function, to control the operation of your air condi- tioning system. Regardless of size or shape, each thermostat will feature a

COOLING ONLY

If your air conditioning system is designed to provide cooling only, with no capability for heating operation, a one-stage cooling only thermostat, with a manual, one-position “Cool” and “Off” comfort switch is all that is required for system operation.

NOTE: If you have an independent heating system (with a separate ther- mostat), always be sure the heating control is turned “Off” before turning on the cooling system.

COOLING AND HEATING

FIGURE 1: PROGRAMMABLE ELECTRONIC THERMOSTAT

temperature indicator; a dial, arm or push button for selection of the desired temperature; a fan switch to choose the indoor fan operation; and a comfort switch for you to select the system mode of operation.

Only York approved thermostats have been tested and are fully compatible with York designed equipment. Please be aware that many different thermo- stats operate on batteries or “power stealing” principals. York can not sup- port such models to be trouble free when used with the Stellar series units.

The following illustrations and discus- sion will aid you to determine which type of thermostat you have for your system.

A complete operating instruction is pro- vided by the manufacturer for each ther- mostat. Familiarize yourself with its proper operation to obtain the maxium comfort with a minimum of energy con- sumption.

If your system has been designed to allow both cooling and heating opera- tion, you may have either a manual change-over type, or a programmable electronic type thermostat .

MANUAL CHANGE-OVER

Manual change-over simply means that the comfort switch must be manually positioned every time you wish to switch from the cooling to heating or heating to cooling modes of operation.

PROGRAMMABLE

ELECTRONIC

THERMOSTATS

The computerized electronic thermostat is actually a sophisticated electronic version of a manual change-over type. This thermostat includes features which allow “set-back” temperature variations for periods of sleep, or while you are away during the day, and means energy savings for you. The thermostat also features a digital clock.

FIGURE 2: PROGRAMMABLE ELECTRONIC THERMOSTAT

FAN OPERATION SELECTION

A multi-position fan switch allows you to choose the type of fan operation of the indoor fan.

AUTO

With the thermostat fan switch set to “AUTO”, the fan will run intermittently as required for either heating or cooling. This position will provide the lowest op- erating cost. If you purchased one the of the York thermostats, they have an Intelligent fan mode which continually circulates the air during occupied modes or when you are at home, and

2 Unitary Products Group