WiFi and RedLINK® Connected Thermostat & Accessory Guide - Dated 2/24

WiFi
WiFi and RedLINK® 3.0
START HERE
03-00658 | 2/24 | KR | © 2024 Resideo Technologies, Inc. All rights reserved.

The Honeywell Home trademark is used under license from Honeywell International, Inc.

These products are manufactured by Resideo Technologies, Inc., and its affiliates.
WiFi and RedLINK® Connected Thermostat & Accessory Guide
SELECT A WiFi & REDLINK®
3.0 COMPATIBLE
THERMOSTAT
REQUIRES ROUTER
Requires Customer-
Supplied Router
REQUIRES ROUTER
Requires Customer-
Supplied Router
SELECT A
WIFI COMPATIBLE
THERMOSTAT
Ventilation

w/ERV/HRV

or damper
Humidifier or

Dehumidifier
T10+ Pro Thermostat with
RedLINK® 3.0 with Sensor
THX321WFS3001W
3H/2C - Heat Pump
2H/2C - Conventional
Dual Fuel
3
3
T10+ Pro Thermostat with
RedLINK® 3.0 without Sensor
THX321WF3003W
3H/2C - Heat Pump
2H/2C - Conventional
Dual Fuel
3
3
T10+ Pro Thermostat with
RedLINK® 3.0 Kit
Ventilation
w/ERV/HRV

or damper
Humidifier or

Dehumidifier
T6 Pro Smart
TH6320WF2003
Up to 3 Heat/2 Cool - Heat Pump
Up to 2 Heat/2 Cool - Conventional
Dual Fuel
3
TH6220WF2006
Up to 2 Heat/1 Cool - Heat Pump
Up to 2 Heat/2 Cool - Conventional
9000 Smart
TH9320WF5003
Up to 3 Heat/2 Cool - Heat Pump
Up to 2 Heat/2 Cool - Conventional
VisionPRO® 8000
Smart
TH8321WF1001
Up to 3 Heat/2 Cool - Heat Pump
Up to 2 Heat/2 Cool - Conventional
Dual Fuel
3
3
Compatible RedLINK® 3.0 Accessories
Internet Not Required
2 Pack Wireless Indoor Sensor
C7189R2002-2
or
C7189R3002-2
Wireless Outdoor Sensor*
C7089R3013
Equipment Interface Module*
THM04R3000
Floor / Slab Sensor
AC112-01
Wiresaver, a C-Wire Adapter for WiFi Thermostats
THP9045A2098
or
THP9045A1023
Compatible Accessories
Wired sensors are not compatible with the TH9320WF5003
Wired Remote Outdoor Sensor
C7089U1006
Wired Remote Indoor Sensor
C7189U1005
WireSaver, a C-Wire Adapter

for WiFi Thermostats
THP9045A2098 or
THP9045A1023
YTHM1004R3000
(includes EIM, wireless
indoor sensor, & 2 duct
sensors)
YTHM1004R3001
(includes EIM, wireless
indoor sensor, wireless
outdoor sensor, & 2 duct
sensors)
4H/2C - Heat Pump
3H/2C - Conventional
Dual Fuel
4H/2C - Heat Pump
3H/2C - Conventional
Dual Fuel
Both
Both
3
3
*For use with T10+ only Red
LINK
® 1.0 & 2.0
START HERE
03-00658 | 2/24 | KR | © 2024 Resideo Technologies, Inc. All rights reserved.

The Honeywell Home trademark is used under license from Honeywell International, Inc.

These products are manufactured by Resideo Technologies, Inc., and its affiliates.
WiFi and RedLINK® Connected Thermostat & Accessory Guide
SELECT A

REDLINK® COMPATIBLE
THERMOSTAT
DOES THE END USER WANT TO
CONTROL THE THERMOSTAT
FROM AN APP?
THM6000R7001 and
Customer-supplied router
Ye s
REQUIRES GATEWAY TO
CONNECT TO INTERNET
FOR APP CONRTOL
Ventilation

w/ERV/HRV

or damper
Humidifier or

Dehumidifier
Prestige®
IAQ Kit
YTHX9421R5085WW
(Includes Prestige thermostat, EIM, & 2
duct sensors)
Up to 4 Heat/2 Cool - Heat Pump
Up to 3 Heat/2 Cool - Conventional
Dual Fuel
3
Both
YTHX9421R5127WW
(Includes Prestige thermostat, EIM,
Gateway, & 2 duct sensors)
3
Both
YTHX9421R5101WW
(Includes Prestige thermostat, EIM,
wireless outdoor sensor, & 2 duct sensors.)
3
Both
YTHX9421R7001WW
(Includes Presitge thermostat, EIM,
Gateway, wireless outdoor sensor, wireless
indoor sensor & 2 duct sensors)
3
Both
RedLINK®
VisionPRO®
8000
TH8321R1001
Up to 3 Heat/2 Cool - Heat Pump
Up to 2 Heat/2 Cool - Conventional
Dual Fuel
3
3
TH8320R1003
Up to 3 Heat/2 Cool - Heat Pump
Up to 2 Heat/2 Cool - Conventional
Dual Fuel
TH8110R1008
1 Heat/1 Cool - Heat Pump
1 Heat/1 Cool - Conventional
Compatible RedLINK® 1.0 & 2.0 Accessories
Internet Not Required
Wired Remote Outdoor Sensor
C7089U1006
Outdoor RedLINK® Equipment Remote Module for
use with Prestige® and RedLINK® VisionPRO® :
Not compatible with zoned systems
ERM5220R1018
Prestige® IAQ Equipment Interface Module
THM5421R1021
Wireless Outdoor Temperature and Humidity Sensor
C7089R1013
Wireless Indoor Air Sensor
C7189R1004
Wireless Adapter
THM4000R1000
Wireless Vent and Filter Boost Remote
HVC20A1000
Wireless Entry/Exit Remote
REM1000R1003
Portable Comfort Control
REM5000R1001
WireSaver, a C-Wire Adapter

for RedLINK VisionPRO
THP9045A2098
or
THP9045A1023
No Connected Thermostat Selection Guide by System Type, Stages, and IAQ Control
START HERE
FIND YOUR THERMOSTAT
ARE YOU CONTROLLING IAQ FROM THE THERMOSTAT?
How many IAQ accessories
are controlled at the thermostat?
Do you have enough wires for your equipment?
•

3 f

or Heat only
•

4 or 5 f

or 1H/1C. If only 4 wires, a C-Wire Adapter
THP9045A2098 is needed for WiFi thermostats.
•

5+ f

or anything else
Is it just the common wire for
1H/1C that you are missing?
Select from:
A T10+ IAQ Kits
B, C

P

restige® IAQ Kit
D

R

edLINK® Vision
PRO® 8000
(TH8321 model) with EIM
Use:
I

THP9045A2098 with
any Honeywell Home WiFi
Thermostat
Is this a dual fuel system?
Use any:
Honeywell Home
WiFi or RedLINK
Thermostat
Select from:
A T10+ IAQ Kits
C

All P

restige® IAQ with outdoor air sensor
E

R

edLINK® VisionPRO® 8000 with outdoor air sensor
G

WiFi VisionPRO® 8000
H, I

T10+ P

ro Smart
J

T6 P

ro Smart TH6320WF2003
Do you have enough
wires for equipment,
common & 2 extra for
the IAQ accessory?
Select from:
A T10+ IAQ Kits
B, C

ALL P

restige® IAQ
E, F

R

edLINK® VisionPRO® 8000
G

WiFi VisionPRO® 8000
H, I

T10+ P

ro Smart
Select from:
A T10+ IAQ Kits
B, C

P

restige® IAQ Kits
D

R

edLINK® VisionPro
8000 (TH8321 model)
with EIM
A
T10+ Thermostat with EIM,
wireless indoor sensor, & 2
duct sensors
YTHM1004R3000
YTHM1004R3001*
4H/2C - Heat Pump
3H/2C - Conventional
B
Prestige® IAQ Kit
YTHX9421R5085WW
Up to 4Heat/2 Cool – Heat Pump
Up to 3 Heat/2 Cool - Conventional
Prestige® IAQ Kit – with
RedLINK® Internet Gateway
YTHX9421R5127WW
Up to 4Heat/2 Cool – Heat Pump
Up to 3 Heat/2 Cool - Conventional
C
Prestige® IAQ Kit – with
Outdoor Air Sensor
YTHX9421R5101WW
Up to 4Heat/2 Cool – Heat Pump
Up to 3 Heat/2 Cool - Conventional
Prestige® IAQ Kit - with
Outdoor Air Sensor, Indoor
Air Sensor, and RedLINK®
Gateway
YTHX9421R7001WW
Up to 4Heat/2 Cool – Heat Pump
Up to 3 Heat/2 Cool - Conventional
D
RedLINK® VisionPRO® 8000

with EIM
TH8321R1001 with
THM5421R1021
3H/2C Heat Pump +
2H/2C Conventional
(With EIM sold separate can control up to 4
stage heat or 4 stage cooling)
E
RedLINK® VisionPRO® 8000

with Outdoor Air Sensor
TH8321R1001 or
TH8320R1003
with
C7089R1003
3H/2C Heat Pump +
2H/2C Conventional
(With EIM sold separate can control up to 4
stage heat or 4 stage cooling)
F
RedLINK® VisionPRO® 8000
TH8321R1001
3H/2C Heat Pump +
2H/2C Conventional
G
WiFi VisionPRO® 8000
TH8321WF1001
3H/2C Heat Pump +
2H/2C Conventional
H
T10+ Pro Smart with
RedLINK® Room Sensor
THX

321WFS3001W
Up to 3 Heat/2 Cool – Heat Pump
Up to 2 Heat/2 Cool - Conventional
I
T10+ Pro Smart without
sensor
THX321WF3003W
3H/2C - Heat Pump
2H/2C - Conventional
J
T6 Pro Smart 3H/2C
TH6320WF2003
3H/2C Heat Pump +
2H/2C Conventional
K
Wire Adapter for WiFi
Thermostats &
RedLINK® 8000
THP9045A2098
or
THP9045A1023
N /A
03-00658 | 2/24 | KR | © 2024 Resideo Technologies, Inc. All rights reserved.

The Honeywell Home trademark is used under license from Honeywell International, Inc.

These products are manufactured by Resideo Technologies, Inc., and its affiliates.
1
2 OR MORE
YES
NO
NO
YES
NO
NO
NO
YES
YES
YES
+
+
* includes wireless outdoor sensor Are you working
with an existing
zone panel?
Select a new panel
Do any thermostat zones
need wireless thermostats?
(no wires available)
Use HZ432K &
THM4000
Plus an outdoor sensor
Use HZ322K &
THM4000
Plus an outdoor sensor
Use HZ432K Plus
wired outdoor sensor
C7089U1006
Use HZ432K
Use HZ322K
Use HZ311K
Select damper sizes:
ARD Round
ZD Rectangular
CPRD Bypass
Go to Connected
Thermostat Selection
Forced Air Zoning: Zone Panel & Connected Thermostat Selection
START HERE - FORCED AIR ZONING
NO>
YES>
YES>
NO>
NO>
YES>
NO>
03-00658 | 2/24 | KR | © 2024 Resideo Technologies, Inc. All rights reserved.

The Honeywell Home trademark is used under license from Honeywell International, Inc.

These products are manufactured by Resideo Technologies, Inc., and its affiliates.
Do you have dual fuel?
YES
YES
YES
NO
YES
YES
NO
NO
Do you have dual fuel?
To confirm, you have
a conventional zone
system that does not
require separate
O & B terminals and
works with a standard
thermostat (R,W,Y,C,G).
Is this correct?
Is your zone panel a
communicating system that
requires special thermostats
or a system that requires
thermostats with separate
O & B Terminals?
More than
3 zones?
Do you need
multi-stage?
How many zones?
NO
How many zones?
4
2-4
2-3
Use HZ432K for 4 zones and a TAZ-4H for additional zones
(Each TAZ-4H can handle up to 4 more zones).
Each wireless thermostat needs a seperate EIM.
For Dual Fuel, use a C7089U1006 wired outdoor sensor.
More than 4