Description, Precautions | White Rodgers 875 instruction

875

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

Features:

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

•Simultaneous heat and cool program storage

•Preprogrammed temperature control

•Backlit display

•LCD continuously displays setpoint, and alternately displays time and room temperature

•Temperature override until next program period

•Manual program override (HOLD temperature)

•Temporary HOLD

•°F/°C convertibility

•Temperature range 45° to 90°F

•RC, RH, C, W, Y, G, O and B terminals

•Optional C terminal (Dual Power option)

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

•Program storage in case of power loss

•2 “AA” alkaline batteries included

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 damage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete.

PRECAUTIONS

!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 circuits per the NEC code.

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 149°F

SPECIFICATIONS

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

PART NO. 37-6910A

0806