White Rodgers 1F85ST-0422 User Manual
1
Blue Selecto 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.
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 (-40° to +65°C)
Dimensions Thermostat ............................................ 3.4”H x 4.4”W x 1.3”D
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 (-40° to +65°C)
Dimensions Thermostat ............................................ 3.4”H x 4.4”W x 1.3”D
www.white-rodgers.com
1F85ST-0422 Thermostat
with Spanish Display
Model
Programming Choices
1F85ST-0422
5/1/1 Day
5/2 Day
Non-Programmable
ATTENTION: MERCURY NOTICE
This product does not contain mercury. However, this
product may replace a product that contains mercury.
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 of spilled mercury, place it in a suitable shipping
container. Refer to www.white-rodgers.com for location to
send product containing mercury.
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 of spilled mercury, place it in a suitable shipping
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.
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
Yes
Hydronic (Hot Water) Zone Heat – 2 Wires
Yes
Hydronic (Hot Water) Zone Heat – 3 Wires
Yes
Index
Page
Installation
2
Wiring Connections
2
Thermostat Quick Reference
3
Installer Confi guration Menu
4
Operating Your Thermostat
6
Programming
6
Troubleshooting
8
PART NO. 37-6954B
Replaces 37-6954A
0905