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Blue Universal Thermostat with
Automatic Heat/Cool Changeover Option
Single Stage, Multi-Stage or Heat Pump
Installation and Operating Instructions for Model:
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLY BEFORE INSTALLING OR OPERATING
THIS CONTROL COULD CAUSE PERSONAL INJURY
AND/OR PROPERTY DAMAGE.
Save these instructions for future use!
APPLICATIONS
SPECIFICATIONS
Electrical Rating:
Battery Power .................................................... mV to 30 VAC, NEC Class II, 50/60 Hz or DC
Input-Hardwire ................................................... 20 to 30 VAC
Terminal Load ........................................................... 1.5 A per terminal, 2.5A maximum all terminals combined
Setpoint Range ......................................................... 45° to 90°F (7° to 32°C)
Differential (Single Stage) ......................................... Heat 0.6°F; Cool 1.2°F (adjustable)
Differential (Heat Pump) ........................................... Heat 1.2°F; Cool 1.2°F (adjustable)
Operating Ambient .................................................... 32° to +105°F (0° to +41°C)
Operating Humidity ................................................... 90% non-condensing max.
Shipping Temperature Range ................................... -40° to +150°F (-20° to +65°C)
Dimensions Thermostat ............................................ 4.0”H x 5.11”W x 1.3”D
www.white-rodgers.com
1F85CA-0471 Thermostat
Model Programming Choices
1F85CA-0471
5/1/1 Day 5/2 Day Non-Programmable
1F85-0471
5/1/1 Day 5/2 Day Non-Programmable
1F83-0471
Non-Programmable
ATTENTION: MERCURY NOTICE
This product does not contain mercury. However, this product
may replace a product that contains mercury.
Mercury and products containing mercury must not be
discarded in household trash. Do not touch any spilled
mercury. Wearing non-absorbent gloves, clean up any spilled
mercury and place in a sealed container. For proper disposal
of a product containing mercury or a sealed container. Refer
to www.white-rodgers.com for location to send product
containing mercury.
To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
CAUTION
!
THERMOSTAT APPLICATION GUIDE
Description
Heat Pump (No Aux. or Emergency Heat) Yes
Heat Pump (with Aux. or Emergency Heat) Yes
Systems with up to 2 Stages Heat, 2 Stages Cool Yes
Heat Only Systems (with optional fan switch) Yes
Millivolt Heat Only Systems – Floor or Wall Furnaces Yes
Cool Only Systems Yes
Gas or Oil Heat Yes
Electric Furnace
Ye s
Hydronic (Hot Water) Zone Heat – 2 Wires Yes
Hydronic (Hot Water) Zone Heat – 3 Wires Yes
Compressor with Comfort Alert II Module (1F85CA only) Yes
Index Page
Installation 2
Wiring Connections 2
Wiring Diagrams 3
Thermostat Quick Reference 4
Installer Confi guration Menu 5
Operating Your Thermostat 7
Programming 7
Troubleshooting 9
PART NO. 37-6920B
Replaces 37-6920A
0905