White Rodgers 1F98EZ-1421 Specification
12" Touchscreen Display
™
Blue
Easy Install
Universal 4-Wire Thermostat Solution
Upgrade single stage applications to premium high-efficiency systems
(staging, heat pump or heat pump with dual fuel) – using existing 4 wires
Dual fuel heat pump control (requires outdoor remote sensor)
1F98EZ-1421
Includes User Interface and
Equipment Control
1F98EZ-1441
Includes User Interface,
Equipment Control and
Outdoor Remote Sensor
(F145-1378)
12" Touchscreen User Interface Equipment Control
™
4H/2C
ACCURACY
OPTIMUM COMFORT
AND PERFORMANCE
5-Year Limited Warranty
We’ve Already Done the Legwork
So You Don’t Have To.
Install, Configure and Verify...All at the Furnace!
Installs Faster and Easier Than the Competition
Equipment Control
Features Quick Connect terminals for faster
installation. Wiring and configuration is done
at the control, mounted near the equipment.
Color-Coded LEDs
Provide positive feedback for easy setup
and confidence in your installation.
Reusable Plug-In Configuration Tool
Eliminates multiple trips up and down
the stairs during setup and system testing.
(F4-1400 available separately)
User Interface Featuring Scrolling Text
Confirms connection to equipment control and
displays words for easy menu configuration.
Scrolling text with words, not numbers!
Blue
™
Easy Install
™
4H/2C
1F98EZ-1421
Universal
Universal 4-Wire Thermostat Solution
Programming
Universal – installer selectable
system applications
Choice of 7-day or non-programmable
(installer selectable)
4 time and 4 temperature settings per
program (2 setbacks) heat and cool
Energy savings up to 30%
Display
Large, 12-square-inch touchscreen display
Lighted display for easier low-light viewing
Optional continuous display light
Larger, easy-to-read character size
Clean, uncluttered touchscreen display
provides easier navigation
Performance
Selectable Energy Management Recovery
Meets California Building Code,
Title 24 Non PCT
Fast (FA) or slow (SL) heating cycle
anticipation
Exclusive “Call for Service”
diagnostic indicator
Compressor lockout protection
Dual Fuel Heat Pump Control
Dual fuel applications require the use
of an outdoor remote sensor.
Humidification and
Dehumidification Control
Flexibility for system integrated control
and/or independent humidification and
dehumidification.
1F98EZ-1441
Universal includes Outdoor Remote Sensor
Comfort & Convenience
Humidification and dehumidification control
Intuitive menu-driven setup, programming
and operation, with audio prompt to confirm
touchscreen entries
Permanent program retention during power loss
Indefinite setpoint Hold or temporary
temperature override
Auto heat/cool changeover option –
automatically switches between
heating and cooling programs
Heating and cooling, heating only or
cooling only configuration
Setpoint temperature limits
UV lamp change reminder
Furnace filter change reminder
Humidifier pad change reminder
Maintains room temperature to within +/- 1˚F
Room temperature display can be recalibrated
up to +/- 5˚F
Equipment Control Terminal Designations*
DHM
C
RH
RC
*See installation instructions or www.white-rodgers.com for terminal descriptions
W/E
W2 Y
Y2
O/B
Thermal Specifications
Setpoint Temperature Range:
45˚ to 99˚F (7˚ to 37˚C)
Rated Differential:
Heat 0.6˚F; Cool 1.2˚F
Operating Ambient Temperature:
32˚ to 105˚F (0˚ to 41˚C) — Interface
-30˚ to 150˚F (-34˚ to 66˚C) — Control
Operating Humidity Range:
90% non-condensing maximum
Shipping Temperature Range:
-40˚ to 150˚F (-40˚ to 66˚C)
Single
Multi-
Heat
Stage
Stage
Stages
Heat/Cool
by System
2/2 4/2
1/1
2/2 4/21/1
H = Hardwired
Both models are Dual Fuel Capable – 1F98EZ-1441 comes with Outdoor Remote Sensor (F145-1378)
Pump
Programs
Program
Options
7, Ø
7, Ø
Model
Model
Number
1F98EZ-1421
1F98EZ-1441
✓
✓
L 6 + S
G
Applications
Millivolt
3 Wire Zone
Gas/Oil/Electric
Humidity Control
✓
✓
Electrical Specifications
Rating
Input Hardwire: 20 to 30 VAC,
NEC Class II, 50/60 Hz or DC
1.5 Amps (load per terminal)
2.5 Amps maximum load (all terminals combined)
Standard Systems
Single Stage gas, oil, electric
Single Stage heat pump
Multi-Stage gas, oil, electric
Multi-Stage heat pump
Selectable Performance Features
Power Source
Auto Changeover
H
✓
H
✓
–
Fan
Recovery
Energy Mgt.
Programmable
✓
✓
✓
✓
DHM2
Keypad Lockout
Dual Fuel Control
Includes Outdoor
✓
✓
✓
✓
✓
Remote Sensor
HM
HM2
Comfort and
Convenience Features
Audible
Ignition
Feedback
✓
✓
Module Reset
✓
✓
Lighted Display
✓
✓
Contractor Branding
Imprint thermostat with your contact information.
See your wholesaler or visit white-rodgers.com.
Dimensions
5.8" W x 5.5" H x 1.4" D (control)
5.9"W x 4.6"H x 1.2"D (interface)
Accessories
Outdoor Remote Sensor
F145-1378
Thermostat Guards
Clear – F29-0198
Metal – F29-0220 (solid base)
F29-0222 (ring base)
Wall plates
F61-2600 (8.1"W x 5.4H")
F61-2634 (6.5"W x 5"H)
For Additional Information
Visit www.white-rodgers.com
Memory
Permanent
✓
✓
Saint Louis, Missouri
314-553-3600
www.white-rodgers.com
www.emersonclimate.com
Markham, Ontario
905-948-3411
The Emerson logo is a trademark and
a service mark of Emerson Electric Co.
WR-1627-1
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