White Rodgers 1F87-251 specifications Operator Save these instructions for future use

1F87-251

Programmable Electronic Digital 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.

DESCRIPTION

Your new White-Rodgers 7-Day Digital Thermostat uses the technology of a solid-state microcomputer to provide precise time/temperature control. This thermostat offers you the flexibil- ity to design heating and cooling programs that fit your needs.

Features:

•Separate program for each day of the week with four separate time/temperature settings per day

•Simultaneous heat and cool program storage

•Preprogrammed temperature control

•LCD continuously displays setpoint, and alternately dis- plays time and room temperature

•Backlit display

•Temperature override until next program period

•Manual program override (HOLD temperature)

•°F/°C convertibility

•Temperature range 45° to 90°F

•RC, RH, W, Y, G , O and B terminals

•B and O terminals for single stage heat pumps (no auxiliary heat) or damper operation

•Program storage in case of power loss.

•Battery powered (2 "AA" Energizer® alkaline batteries in- cluded)

PRECAUTIONS

This thermostat is intended for use with a low voltage system; do not use this thermostat with a 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 components could cause the control to malfunction.

!CAUTION

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

!WARNING

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

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

Thermostat installation and all components of the system shall conform to Class II (current limited) cir- cuits per the NEC code. Failure to do so may cause a fire hazard.

SPECIFICATIONS

ELECTRICAL DATA

Electrical Rating:

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

0.05 to 1.0 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

Operating Humidity Range:

0 to 90% RH (non-condensing)

Shipping Temperature Range:

-4°F to 150°F

APPLICATIONS

For use with:

•Standard heat/cool or heat only systems

•Electric heat systems

•Gas or oil fired systems

•Gas systems with intermittent ignition devices (I.I.D.) and/or vent dampers

•Hydronic (hot water or steam) systems

•Single-stage heat pump systems (no auxiliary heat)

•Millivolt systems

DO NOT USE WITH:

•Multi-stage systems

•Systems exceeding 30 VAC and 1.5 amps

•3-wire zoned hydronic heating systems

WHITE-RODGERS	PART NO. 37-6417C
EMERSON ELECTRIC CO.
9797 REAVIS ROAD	Replaces 37-6417B
ST. LOUIS, MISSOURI 63123-5398	0441
www.white-rodgers.com