White Rodgers 1F89-11 specifications Operator Save these instructions for future use, Description

1F89-11

Non-Programmable Electronic Digital

WHITE-RODGERSHeat Pump Thermostat

INSTALLATION AND

OPERATION 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.

Your new White-Rodgers Digital Heat Pump Thermostat uses the technology of a solid-state microcomputer to provide precise temperature control. This thermostat of- fers you the flexibility to set heating and cooling tempera- tures that fit your needs.

Features:

•Simultaneous heat and cool temperature storage

•LCD continuously displays set point and room tem- perature

DESCRIPTION

•°F/°C convertibility

•Temperature range 45° to 90°F

•Eight terminals for single or two-transformer systems

•O/B terminal for heat pump systems

•Armchair Demonstration Capability

PRECAUTIONS

This thermostat is intended for use with a 24-volt system; do not use this thermostat with a millivolt or line voltage system. If in doubt about whether your wiring is millivolt, line, or low voltage, have it inspected by a qualified heating and air conditioning contractor or electrician.

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.

!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.

Do not short out terminals on gas valve or pri- mary control to test. Short or incorrect wiring will damage thermostat and could cause personal injury and/or property damage.

ELECTRICAL DATA

Electrical Rating:

20 to 30 VAC 50/60 Hz. or D.C.

0.05 to 1.5 Amps (Load per terminal)

1.5Amps Maximum Total Load (All terminals combined)

THERMAL DATA

Setpoint Temperature Range:

45°F to 90°F (7°C to 32°C)

Operating Ambient Temperature Range:

32°F to 105°F

SPECIFICATIONS

Operating Humidity Range:

0 to 90% RH (non-condensing)

Shipping Temperature Range:

-40°F to 150°F

APPLICATIONS

For use with:

•Heat pump systems with up to two stages heat, one stage cool

DO NOT USE WITH:

•Millivolt systems

•Systems exceeding 30 VAC and 1.5 amps

•3-wire zoned hydronic heating systems

WHITE-RODGERS DIVISION		PART NO. 37-5741A
EMERSON ELECTRIC CO.	Printed in U.S.A.
		Replaces 37-5612B
9797 REAVIS ROAD
		9636
ST. LOUIS, MISSOURI 63123-5398