Spec Sheet
Table Of Contents
- Application
- Features
- Contents
- Specifications
- System Installation
- Installation Options
- Guidelines for Installing RedLINK Devices
- Installing Equipment Interface Module (if used)
- Wiring 24 Vac Common
- Selecting Discharge and Return Air Temperature Sensor Mounting Locations
- Selecting Return Air Temperature Sensor Mounting Location
- Installing Discharge and Return Air Temperature Sensors
- Selecting Thermostat Location
- Installing Wallplate
- Power Optional REDLINK™ Accessories
- Performing Initial Setup
- Linking Thermostat to Equipment Interface Module (if used)
- Linking RedLINK™ Accessories
- Completing Initial Setup
- Adding RedLINK Accessories to the Thermostat
- Locating the Connect Buttons on RedLINK Accessories
- Finding Your Password (Date Code) to Access Installer Options
- Installer Options
- Making Changes to Installer Setup
- Installer Tests
- Operation
- Setting the time/date
- Setting the fan
- Setting system mode
- Preset Energy-Saving Schedules
- Adjusting program schedules
- Overriding schedules: residential use
- Overriding schedules: commercial use
- Viewing equipment status
- Setting vacation hold: residential use
- Setting holiday/event schedules: commercial use
- Setting custom events: commercial use
- Setting holiday schedule: commercial use
- Setting holiday override: commercial use
- Initiating occupancy mode: commercial use
- Remote setback: commercial use
- Adjusting humidification settings
- Adjusting dehumidification settings: residential use
- Adjusting dehumidification settings: commercial use
- Adjusting ventilation settings
- Customizing screen color
- Setting preferences
- Cleaning the thermostat screen
- Adjusting security settings
- Viewing dealer information
- Advanced Features
- Installer options
- Using the temperature display
- Using the humidity display
- Universal Outputs (U1, U2, U3)
- Universal Inputs (S1, S2, S3, S4)
- Alerts and Diagnostics
- Heat Pump and Backup Heat Operation
- Indoor Air Quality (IAQ) Control
- IAQ Reminders
- Customizable Reminders
- USB Port
- Commercial Features
- Overriding schedules: commercial use
- Setting holiday/event schedules: commercial use
- Setting custom events: commercial use
- Setting holiday schedule: commercial use
- Setting holiday override: commercial use
- Initiating occupancy mode: commercial use
- Ramp Rates
- Custom Names
- Remote Setback
- Economizer and Time of Day (TOD) Operation
- Pre-Occupancy Purge
- Battery Replacement
- Optional Accessories
- Portable Comfort Control
- Remote Indoor Sensors
- Backup Control
- Replacing a Thermostat
- Replacing an Equipment Interface Module
- Wiring
- EIM Wiring Diagrams
- THX9321 Thermostat Wiring Diagrams
- THX9321 Thermostat Wiring Diagrams Using Universal Relays to Control Heating or Cooling
- Wiring IAQ Equipment or a Heat/Cool Stage to the Universal Terminals
- Economizer Module Wiring Diagrams
- Wiring C7089U1006 Outdoor Sensor
- Wiring guide — Wired Indoor Sensors
- Zoning
- Troubleshooting
- Regulatory Information
THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ WITH EIM
5 68-0311—07
Table 1. Prestige Kits.
Kit
Part Number
Included in Kit
Part Number Description
Prestige IAQ Kit
YTHX9421R5101WW
THX9421R5021WW Thermostat - White Front, White Side
THM5421R1021 Equipment Interface Module
C7089R1013 Wireless Outdoor Sensor
50062329-001 Discharge/Return Sensors (Qty. 2)
Prestige IAQ Kit
YTHX9421R5085WW
THX9421R5021WW Thermostat - White Front, White Side
THM5421R1021 Equipment Interface Module
50062329-001 Discharge/Return Sensors (Qty. 2)
Prestige IAQ Kit
YTHX9421R7001WW
THX9421R5021WW Thermostat - White Front, White Side
THM5421R1021 Equipment Interface Module
50062329-001 Discharge/Return Sensors (Qty. 2)
THM6000R7001 RedLINK Internet Gateway
Table 2. Thermostat Replacement Parts and Accessories.
Product Part Number
Operating
Ambient
Temperature
Operating Relative
Humidity
Shipping
Temperature
Physical Dimensions in in.
(mm) Color(s)
Thermostat THX9421R5021WW 32 to 120 °F
(0 to 48.9 °C)
5% to 90%
Non-Condensing
-20 to 120 °F
(-28.9 to 48.9 °C)
4-1/2 x 3-1/2 x 7/8
(115 x 88 x 22)
Front-
White,
Side-White
THX9421R5021BB
OBSOLETE
32 to 120 °F
(0 to 48.9 °C)
5% to 90%
Non-Condensing
-20 to 120 °F
(-28.9 to 48.9 °C)
4-1/2 x 3-1/2 x 7/8
(115 x 88 x 22)
Front-
Black,
Side-Black
THX9421R5021SG
OBSOLETE
32 to 120 °F
(0 to 48.9 °C)
5% to 90%
Non-Condensing
-20 to 120 °F
(-28.9 to 48.9 °C)
4-1/2 x 3-1/2 x 7/8
(115 x 88 x 22)
Front-
Silver, Side-
Gray
THX9421R5021WG
OBSOLETE
32 to 120 °F
(0 to 48.9 °C)
5% to 90%
Non-Condensing
-20 to 120 °F
(-28.9 to 48.9 °C)
4-1/2 x 3-1/2 x 7/8
(115 x 88 x 22)
Front-
White,
Side-Gray
THX9321R5030
OBSOLETE
32 to 120 °F
(0 to 48.9 °C)
5% to 90%
Non-Condensing
-20 to 120 °F
(-28.9 to 48.9 °C)
6-13/16 x 3-7/8 x 1-7/16
(173 x 99 x 36)
Arctic
White
Equipment
Interface Module
YTHM5421R1010*
THM5421R1021
-40 to 165 °F
(-40 to 73.9 °C)
5% to 95%
Non-Condensing
-20 to 165 °F
(-28.9 to 73.9 °C)
9-11/32 x 4-53/64 x 1-
19/32
(237 x 123 x 41)
Gray
Equipment remote
module
ERM5220R1018 Compressor:
-40 to 155 °F
(-40 to 68 °C)
Boiler:
30 to 130 °F
(-1 to 54 °C)
0% to 99%
Non-Condensing
-20 to 165 °F
(-28.9 to 73.9 °C)
6-39/64 x 6-7/8 x 1-
31/64"
(168 x 175 x 38)
Gray
Wireless Adapter
(For TrueZONE,
TrueSTEAM or
extend wireless
range of EIM)
THM4000R1000 -40 to 165 °F
(-40 to 73.9 °C)
5% to 95%
Non-Condensing
-20 to 165 °F
(-28.9 to 73.9 °C)
5-9/16 x 4-3/8 x 1-1/4
(141 x 112 x 32)
Gray
RedLINK Internet
Gateway
THM6000R1002
OBSOLETE
32 to 120 °F
(0 to 48.9 °C)
5% to 95%
Non-Condensing
-20 to 120 °F
(-28.9 to 48.9 °C)
6 x 4-7/8 x 2-1/2
(152 x 124 x 64)
Black
RedLINK Internet
Gateway
THM6000R7001 32 to 120 °F
(0 to 48.9 °C)
5% to 95%
Non-Condensing
-20 to 120 °F
(-28.9 to 48.9 °C)
3-7/8 x 3-9/16 x 1-1/8
(99 x 91 x 29 mm)
White
Portable Comfort
Control
REM5000R1001 32 to 120 °F
(0 to 48.9 °C)
5% to 90%
Non-Condensing
-20 to 120 °F
(-28.9 to 48.9 °C)
6-1/4 x 3-1/8 x 1-5/8
(158 x 80 x 38)
Front-
White,
Side-Gray
Wireless
Entry/Exit Remote
REM1000R1003 32 to 120 °F
(0 to 48.9 °C)
5% to 90%
Non-Condensing
-20 to 120 °F
(-28.9 to 48.9 °C)
3-15/16 x 1-15/16 x 5/8
(101 x 50 x 16)
Arctic
White
Wireless Vent and
Filter Boost
Remote
HVC20A1000 32 to 120 °F
(0 to 48.9 °C)
5% to 90%
Non-Condensing
-20 to 120 °F
(-28.9 to 48.9 °C)
3-15/16 x 1-15/16 x 5/8
(101 x 50 x 16)
Arctic
White
Wireless Outdoor
Sensor
C7089R1013 -40 to 140 °F
(-40 to 60 °C)
0% to 100%
Condensing
-40 to 120 °F
(-40 to 48.9 °C)
5 x 3-1/2 x 1-11/16
(127 x 89 x 43)
Gray