Universal Electronics 975 Configuration, Compressor Lockout, Disabling Heat, Cool Or Auto Modes

CONFIGURATION

would be set so the fan shuts off just as the cool air is exhausted. If this timing is set too long the fan may begin blowing warm air before it shuts off. Shortening the fan-off delay will prevent this.

COMPRESSOR LOCKOUT

This thermostat is designed to protect the system against premature compressor failure by “locking out” the compressor for at least five minutes after each cycle. When the thermostat is in compressor lockout, the word COOL will flash on the display. During this period, the compressor will not be energized.

If the system has short-cycle protection, this feature can be disabled.

Lockout Bypass Option

FOR QUALIFIED SERVICE TECHNICIANS’ USE ONLY. HOMEOWNERS SHOULD NOT USE THIS FEATURE DUE TO POSSIBILITY OF EQUIPMENT OR PROPERTY DAMAGE, OR PERSONAL INJURY.

DISABLING HEAT, COOL OR AUTO MODES

The automatic changeover feature of this thermostat can be disabled (automatic changeover allows the thermostat to switch between heating and cooling to maintain temperature). If this thermostat is controlling a heating-only or cooling-only system, the heat, cool, or auto modes can be disabled.

COMPRESSOR SHORT TERM CYCLE PROTECTION

This thermostat has a built-in short term (5-minute) time delay. During this 5-minute period, the thermostat will lock out the compressor to allow head pressure to stabilize. To override this feature for one cycle while testing thermostat operation, press SET TIME and SET DAY buttons at the same time.

OPTIONAL REMOTE TEMPERATURE SENSE

An optional remote sensor (part # F145-1328) can be attached to this thermostat and may be wired as far away as 200 feet. The thermostat will use the temperature in the remote location as its room

20