Honeywell Home RedLINK Zoning Options
Zoning with IAQ Control
RedLINK FocusPRO Thermostats
2-3 Zones
System Type:
- 1-2 Stage Furnace + 1-2 Stage Cooling: Option A, Page 2
- Single Stage Heat Pump + Electric Heat Strips for Auxiliary Heat: Option A, Page 2
- 2 Stage Heat Pump + Electric Heat Strips for Auxiliary Heat: Option B, Page 3
- Dual Fuel (1 or 2 Stage Heat Pump + 1 or 2 Stage Gas/Oil Furnace): Option C, Page 4
4 Zones
System Type:
- 1-2 Stage Furnace + 1-2 Stage Cooling: Option B, Page 2
- Single Stage Heat Pump + Electric Heat Strips for Auxiliary Heat: Option B, Page 2
- 2 Stage Heat Pump + Electric Heat Strips for Auxiliary Heat: Option B, Page 2
- Dual Fuel (1 or 2 Stage Heat Pump + 1 or 2 Stage Gas/Oil Furnace): Option C, Page 4
5-32 Zones
System Type:
- 1-2 Stage Furnace + 1-2 Stage Cooling: Option D, Page 4
- Single Stage Heat Pump + Electric Heat Strips for Auxiliary Heat: Option D, Page 4
- 2 Stage Heat Pump + Electric Heat Strips for Auxiliary Heat: Option D, Page 4
- Dual Fuel (1 or 2 Stage Heat Pump + 1 or 2 Stage Gas/Oil Furnace): Option D, Page 4
Prestige Thermostats for All Zones
2-3 Zones
System Type:
- 1-2 Stage Furnace + 1-2 Stage Cooling: Option E, Page 6
- Single Stage Heat Pump + Electric Heat Strips for Auxiliary Heat: Option E, Page 6
- 2 Stage Heat Pump + Electric Heat Strips for Auxiliary Heat: Option F, Page 6
- Dual Fuel (1 or 2 Stage Heat Pump + 1 or 2 Stage Gas/Oil Furnace): Option G, Page 6
4 Zones
System Type:
- 1-2 Stage Furnace + 1-2 Stage Cooling: Option F, Page 6
- Single Stage Heat Pump + Electric Heat Strips for Auxiliary Heat: Option F, Page 6
- 2 Stage Heat Pump + Electric Heat Strips for Auxiliary Heat: Option F, Page 6
- Dual Fuel (1 or 2 Stage Heat Pump + 1 or 2 Stage Gas/Oil Furnace): Option G, Page 6
RedLINK VisionPRO Thermostats
- RedLINK VisionPRO Thermostats: Page 8
- Zoning without IAQ Control: Page 9
- EIM to Zone Panel Wiring Diagrams: Page 10
IAQ Control from Zone 1 Stat
Option A: 2–3 Zones
Table 1. 1–2 Stage Furnace + 1–2 Stage Cooling or Single Stage Heat-Pump + Electric Heat-Strips for Auxiliary Heat. No Dual Fuel.
| Parts list | Description | Quantity |
|---|---|---|
| 1. HZ322K zone panel kit | Includes HZ322 zone panel, C7735A1000 discharge sensor, and AT140A1042 transformer | 1 |
| 2. YTHX9421R | Prestige IAQ kit with Thermostat & EIM. (Different kits can also include accessories such as a RedLINK Internet gateway.) | 1 |
| 3. YTH6320R1023 | Includes TH6320R1004 wireless programmable FocusPRO thermostat and THM4000R1000 adapter | 1 |
| 4. TH6320R1004 | Wireless thermostat for zone 3 (not needed for 2 zone system) | 0–1 |
| 5. Appropriate zone dampers and by-pass damper for the application |
Option B: 2–4 Zones
Table 2. 1–3 Stage Furnace + 1–2 Stage Cooling, or 1–2 Stage Heat-Pump + Electric Heat-Strips for Auxiliary Heat.
| Parts list | Description | Quantity |
|---|---|---|
| 1. HZ432K zone panel kit | Includes HZ432 zone panel, C7735A1000 discharge sensor, and AT140A1042 transformer | 1 |
| 2. YTHX9421R | Prestige IAQ kit with Thermostat & EIM. (Different kits can also include accessories such as a RedLINK Internet gateway.) | 1 |
| 3. YTH6320R1023 | Includes: TH6320R1004 wireless programmable FocusPRO thermostat and THM4000R1000 adapter | 1 |
| 4. TH6320R1004 | Wireless thermostats for zones 3 and 4 (not needed for 2 zone system) | 0–2 |
| 5. Appropriate zone dampers and by-pass damper for the application |
Option C: 2-4 Zones
Table 3. Dual Fuel. 1-2 Stage Heat-Pump + 1-2 Stage Gas Furnace.
| Parts list | Description | Quantity |
|---|---|---|
| 1. HZ432K zone panel kit | Includes: HZ432 zone panel, C7735A1000 discharge sensor, and AT140A1042 transformer | 1 |
| 2. YTHX9421R | Prestige IAQ kit with Thermostat & EIM. (Different kits can also include accessories such as a RedLINK Internet gateway.) | 1 |
| 3. YTH6320R1023 | Includes: TH6320R1004 wireless programmable FocusPRO thermostat and THM4000R1000 adapter | 1 |
| 4. TH6320R1004 | Wireless thermostats for zones 3 and 4 (not needed for 2 zone system) | 0-2 |
| 5. C7089R1013 | Wireless outdoor sensor for dual fuel changeover | 1 |
| 6. Appropriate zone dampers and by-pass damper for the application |
Figure 1. Zoning with IAQ equipment.
Option D: More Than 4 Zones (Cannot use THM4000R Wireless Adapter)
Table 4. 1-3 Stage Furnace + 1-2 Stage Cooling, Heat-Pump with 1-2 Compressor Stages + Auxiliary Heat, or 1-2 Stage Heat-Pump + 1-2 Stage Gas Furnace (Dual Fuel).
| Parts list | Description | Quantity |
|---|---|---|
| 1. HZ432K zone panel kit | Includes: HZ432 zone panel, C7735A1000 discharge sensor, and AT140A1042 transformer | 1 |
| 2. TAZ-4H | Add-A-Zone panel | 1 per each additional 4 zones |
| 3. AT140A1042 | 4OVA transformer | 1 per TAZ-4H panel |
| 4. YTHX9421R | Prestige IAQ kit with Thermostat & EIM. (Different kits can also include accessories such as a RedLINK Internet gateway.) | 1 |
| 5. YTH6320R1001 | Wireless FocusPRO and EIM kit | 1 for each zone other than the Prestige zone |
| 6. Appropriate zone dampers and by-pass damper for the application | 1 | |
| 7. C7089U1006 | Wired outdoor sensor (required for dual fuel applications only) |
Figure 2. More than 4 zones with Prestige on zone 1 and RedLINK FocusPRO for other zones.
No IAQ Equipment or Economizer Control
For 2-4 zone applications that do not require control of a Humidifier, Dehumidifier, Ventilator, economizer, or Remote Indoor Sensor, the THM5421R1021 can be eliminated. The Prestige IAQ thermostat can be enrolled to the THM4000R1000 wireless adapter included in the YTH6320R1023 kit, or another TH6320R1004 thermostat can be used for zone 1 instead of the Prestige IAQ. When a TAZ-4H is used for systems over 4 zones, a THM4000R1000 cannot be used.
Figure 3. No IAQ Equipment.
All Prestige Thermostats Without IAQ Control
Option E: 2-3 Zones (If C7189R or C7189U Indoor Sensors are Used, Cannot Use THM4000R. Need Separate EIM for Each Stat).
Table 5. 1-2 Stage Furnace + 1-2 Stage Cooling or Single Stage Heat-Pump + Electric Heat-Strips for Auxiliary Heat. Not Dual Fuel.
| Parts list | Description | Quantity |
|---|---|---|
| 1. HZ322K zone panel kit | Includes: HZ322 zone panel, C7735A1000 discharge sensor, and AT140A1042 transformer | 1 |
| 2. YTHX9421R | Prestige IAQ kit with Thermostat & EIM for IAQ zone (usually zone 1). Different kits can also include accessories such as a RedLINK Internet gateway | 1 |
| 3. THX9421R5021 | Prestige without EIM for zones 2-3 | 1-2 |
| 4. THM4000R1000 | Wireless adapter for zone 2-3 Prestige IAQ thermostats not controlling IAQ equipment or using an indoor sensor | 1 |
| 5. Appropriate zone dampers and by-pass damper for the application |
Option F: 2-4 Zones (If C7189R or C7189U Indoor Sensors are Used, Cannot Use THM4000R. Need Separate EIM for Each Stat).
Table 6. 1-3 Stage Furnace + 1-2 Stage Cooling, or 1-2 Stage Heat-Pump + Electric Heat-Strips for Auxiliary Heat.
| Parts list | Description | Quantity |
|---|---|---|
| 1. HZ432K zone panel kit | Includes: HZ432 zone panel, C7735A1000 discharge sensor, and AT140A1042 transformer | 1 |
| 2. YTHX9421R | Prestige IAQ kit with Thermostat & EIM for IAQ zone (usually zone 1). Different kits can also include accessories such as a RedLINK Internet gateway | 1 |
| 3. THX9421R5021 | Prestige without EIM for zones 2-4 | 1-3 |
| 4. THM4000R1000 | Wireless adapter for zone 2-4 Prestige IAQ thermostats not controlling IAQ equipment or using an indoor sensor | 1 |
| 5. Appropriate zone dampers and by-pass damper for the application. |
Option G: 2-4 Zones (If C7189R or C7189U Indoor Sensors are Used, Cannot Use THM4000R. Need Separate EIM for Each Stat).
Table 7. Dual Fuel. 1-2 Stage Heat-Pump + 1-2 Stage Gas Furnace.
| Parts list | Description | Quantity |
|---|---|---|
| 1. HZ432K zone panel kit. | Includes: HZ432 zone panel, C7735A1000 discharge sensor, and AT140A1042 transformer | 1 |
| 2. YTHX9421R | Prestige IAQ kit with Thermostat & EIM for IAQ zone (usually zone 1). Different kits can also include accessories such as a RedLINK Internet gateway | 1 |
| 3. THX9421R5021 | Prestige without EIM for zones 2-4 | 1-3 |
| 4. THM4000R1000 | Wireless adapter for zone 2-4 Prestige IAQ thermostats not controlling IAQ equipment or using an indoor sensor | 1 |
| 5. C7089R1013 | Wireless outdoor sensor | 1 |
| 6. Appropriate zone dampers and by-pass damper for the application |
Figure 4. Zoning with IAQ equipment (humidifier, dehumidifier, or ventilator).
Prestige IAQ thermostats used with a THM4000R adapter and THM6000R gateway lose the 2.0 functionality online. This means you will be able to override the set point but cannot program them or control the fan setting via app. Also, they cannot be used in a demand response utility program. Also, you cannot use those thermostats with an REM1000R1003 exit/entry control or WSK24 remote setback.
A wiring from EIM to corresponding zone depends on equipment controlled. See page 10 for system specific wiring.
Option H: More Than 4 zones (Cannot Use THM4000R Wireless Adapter)
Table 8. 1-3 Stage Furnace + 1-2 Stage Cooling, Heat-Pump with 1-2 Compressor Stages + Auxiliary Heat, or 1-2 Stage Heat-Pump + 1-2 Stage Gas Furnace (Dual Fuel).
| Parts list | Description | Quantity |
|---|---|---|
| 1. HZ432K zone panel kit | Includes HZ432 zone panel, C7735A1000 discharge sensor, and AT140A1042 transformer | 1 |
| 2. TAZ-4H | Add-A-Zone panel | 1 per each additional 4 zones |
| 3. AT140A1042 | 4OVA transformer | 1 per TAZ-4H panel |
| 4. YTHX9421R | Prestige IAQ thermostat kit with EIM | 1 for each zone |
| 5. Appropriate zone dampers and by-pass damper for the application | ||
| 6. C7089U1006 | Wired outdoor sensor (required for dual fuel applications only) | 1 |
RedLINK VisionPRO instead of Prestige
For any of the A-F applications listed, you could replace the Prestige IAQ thermostats with TH8321R1001 RedLINK VisionPRO models. When the RedLINK VisionPRO models are used, you can link to the THM5421R1021 or THM4000R1000 (same as Prestige) or wire directly from the thermostat sub-base to the zone connection on the zone panel if wires are available.
Figure 5. More than 4 zones with all Prestige.
No IAQ Equipment
Any of the above listed 2-4 zone applications that do not need to control a Humidifier, Dehumidifier, Ventilator, Economizer or Remote Indoor Sensor can eliminate the THM5421R1021. You can enroll all Prestige IAQ or RedLINK VisionPRO thermostats to the THM4000R1000 wireless adapter. When a TAZ-4H is used for systems over 4 zones, you cannot use a THM4000R1000.
Figure 6. No IAQ equipment or remote indoor sensor.
EIM to Zone Panel Wiring Diagrams
Figure 7. Gas furnace and AC.
Figure 8. Heat pump with 1-stage compressor and electric strips.
Figure 9. Heat pump with 2-stage compressor and electric strips.
Figure 10. Dual fuel heat pump.
To Learn More
For more information regarding zoning, contact 800-468-1502, or for technical literature go to www.pro.resideo.com.
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
1-800-468-1502
33-00642-02 M.S. Rev. 01-23 | Printed in United States
© 2023 Resideo Technologies, Inc. All rights reserved.
The Honeywell Home trademark is used under license from Honeywell International, Inc. This product is manufactured by Resideo Technologies, Inc. and its affiliates.
