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APPLICATIONS
SPECIFICATIONS
Electrical Rating:
Input-Hardwire ................................................... 20 to 30 VAC
Terminal Load ........................................................... 1.0A per terminal, 2.5A maximum all terminals combined
Setpoint Range ......................................................... 45° to 99°F (7° to 37°C)
Differential (Single Stage) ......................................... Heat 0.6°F; Cool 1.2°F
Differential (Multi-Stage) ........................................... Heat 0.6°F; Cool 1.2°F
Differential (Heat Pump) ........................................... Heat 1.2°F; Cool 1.5°F
Operating Ambient .................................................... 32°F 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 Interface ................................................ 4-1/2”H x 6”W x 1-1/4”D
Dimensions Control .................................................. 5-1/2”H x 5-3/4”W x 1-1/2”D
www.white-rodgers.com
www.emersonclimate.com
1F98EZ-1421, -1441 System
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 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.
CAUTION
!
Index Page
Installation 2
Wiring Connections 2
Wiring Diagrams 3
Installer Configuration Menu 5
Troubleshooting 8
PART NO. 37-7215C
Replaces 37-7215B
1110
1F98EZ-1421, -1441 Easy Install
For up to 4 Stages Heat and 2 Stages Cool
INSTALLATION INSTRUCTIONS
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
Configuration
Options
Applications Maximum
Stages
Single Stage Gas, Oil, Electric, Heat Only, Cool
Only or Heat Cool Systems
1/1
Multi Stage Gas, Oil, Electric, Heat Only, Cool
Only or Heat Cool Systems
2/2
Heat Pump Single or Two Compressor Systems
with up to 2 Stages of Aux / Em Heat
4/2
Heat Pump
with Dual Fuel
Single or Two Compressor Systems
with up to 2 Stages of Fossil fuel
Heat
4/2
12” Touchscreen User Interface
1F98-1491
Equipment Control
40C01-1400