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.
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 contrac-
tor 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.
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 Digital Thermostat uses the
technology of a solid-state microcomputer to provide precise
temperature control.
Features:
• Simultaneous heat and cool setpoint storage
• Setpoint storage in case of power loss
• Pre-set temperature control
• LCD continuously displays setpoint and room temperature
• Continuous Backlit display option
• °F/°C convertibility
• Temperature range 45° to 90°F
• R, C, Y, W2, G, O/B, E, and L terminals for single or two-
transformer systems
• Optional "AA" batteries to provide continuous temperature
display during loss of AC power
SPECIFICATIONS
ELECTRICAL DATA
Electrical Rating:
20 to 30 VAC 50/60 Hz. or D.C.
0.05 to 1.0 Amps (Load per terminal)
1.5 Amps 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
APPLICATIONS
For use with:
• Standard heat pump systems with electric, gas or oil Aux
heat with 24 VAC HOT and COMMON available
• Single-stage heat pump systems with no Aux heat with
24 VAC HOT and COMMON available
DO NOT USE WITH:
• Millivolt systems
• Systems exceeding 30 VAC and 1.5 amps
• 3-wire zoned hydronic heating systems
1F89-211
Non-programmable Electronic Digital
Heat Pump Thermostat
INSTALLATION AND
OPERATION INSTRUCTIONS
PART NO. 37-6233E
Replaces 37-6233D
1014
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 (current limited)
circuits per the NEC code. Failure to do so could cause
a fire hazard.
Operator: Save these instructions for future use!
www.white-rodgers.com
www.emersonclimate.com
Summary of Contents for 1F89-211
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