Resideo HZ221K Zoning Panel and Kits
The Resideo HZ221K TrueZONE kit is a field-proven solution for managing 2-zone HVAC systems utilizing single-stage heat pumps with auxiliary electric heat. Designed for rigorous professional use, this zoning control panel streamlines multi-zone management by eliminating the complexity of manual dip switches in favor of a digital-friendly interface. The kit is comprehensive, featuring the HZ221 TrueZONE panel, a C7735A discharge air temperature sensor (DATS), and a dedicated 40 VA transformer to ensure stable 24V power delivery across the network.
For high-performance heat pump zoning, the HZ221K integrates advanced discharge air monitoring to protect equipment from high-limit or low-limit conditions. It features robust push-to-connect terminals that secure 18-to-20 gauge solid wire quickly, reducing installation time and Improving terminal reliability. This HVAC zone control kit supports variable-speed fan control through the DS/BK terminal and provides clear system diagnostics via common-sense LEDs, allowing technicians to verify zone damper operation and system status at a glance.
Key Benefits
- Simplified Commissioning: Utilizes a smaller footprint and digital logic, replacing legacy mechanical switches for a cleaner, professional installation.
- Equipment Protection: Included discharge air temperature sensor prevents coil freeze-ups and overheating by monitoring supply air in real-time.
- Universal Damper Compatibility: Seamlessly controls ARD, ZD, and RRD series dampers, providing flexible forced air zoning options for retrofit or new construction.
- Advanced Logic: Built-in auto changeover and emergency heat switch ensure the system maintains setpoints across different zones without manual intervention.
Common Questions
What thermostats are compatible with the HZ221K?
This panel is designed for heat pump thermostats configured for a cool changeover valve (O terminal). While it works with most 4-wire thermostats, the installer must ensure the subbase is correctly wired for 24VAC and the O/B logic matches the panel's requirements.
How many dampers can I wire to a single zone?
The included 40 VA transformer supports the panel (6.25 VA) and standard dampers. If your total VA draw exceeds 28.8 VA at 100°F per zone, you must utilize an SDCR (Slave Damper Control Relay) to isolate the additional load.
Can I use this for a dual-fuel or multi-stage system?
No, the HZ221K is specifically engineered for single-stage heat pump zoning with auxiliary heat (2H/1C). For dual-fuel or multi-stage conventional systems, the HZ322 or HZ432 panels are the appropriate technical choice.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Resideo HZ221K Zoning Panel and Kits
The Resideo HZ221K TrueZONE kit is a field-proven solution for managing 2-zone HVAC systems utilizing single-stage heat pumps with auxiliary electric heat. Designed for rigorous professional use, this zoning control panel streamlines multi-zone management by eliminating the complexity of manual dip switches in favor of a digital-friendly interface. The kit is comprehensive, featuring the HZ221 TrueZONE panel, a C7735A discharge air temperature sensor (DATS), and a dedicated 40 VA transformer to ensure stable 24V power delivery across the network.
For high-performance heat pump zoning, the HZ221K integrates advanced discharge air monitoring to protect equipment from high-limit or low-limit conditions. It features robust push-to-connect terminals that secure 18-to-20 gauge solid wire quickly, reducing installation time and Improving terminal reliability. This HVAC zone control kit supports variable-speed fan control through the DS/BK terminal and provides clear system diagnostics via common-sense LEDs, allowing technicians to verify zone damper operation and system status at a glance.
Key Benefits
- Simplified Commissioning: Utilizes a smaller footprint and digital logic, replacing legacy mechanical switches for a cleaner, professional installation.
- Equipment Protection: Included discharge air temperature sensor prevents coil freeze-ups and overheating by monitoring supply air in real-time.
- Universal Damper Compatibility: Seamlessly controls ARD, ZD, and RRD series dampers, providing flexible forced air zoning options for retrofit or new construction.
- Advanced Logic: Built-in auto changeover and emergency heat switch ensure the system maintains setpoints across different zones without manual intervention.
Common Questions
What thermostats are compatible with the HZ221K?
This panel is designed for heat pump thermostats configured for a cool changeover valve (O terminal). While it works with most 4-wire thermostats, the installer must ensure the subbase is correctly wired for 24VAC and the O/B logic matches the panel's requirements.
How many dampers can I wire to a single zone?
The included 40 VA transformer supports the panel (6.25 VA) and standard dampers. If your total VA draw exceeds 28.8 VA at 100°F per zone, you must utilize an SDCR (Slave Damper Control Relay) to isolate the additional load.
Can I use this for a dual-fuel or multi-stage system?
No, the HZ221K is specifically engineered for single-stage heat pump zoning with auxiliary heat (2H/1C). For dual-fuel or multi-stage conventional systems, the HZ322 or HZ432 panels are the appropriate technical choice.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Resideo HZ221K TrueZONE kit is a field-proven solution for managing 2-zone HVAC systems utilizing single-stage heat pumps with auxiliary electric heat. Designed for rigorous professional use, this zoning control panel streamlines multi-zone management by eliminating the complexity of manual dip switches in favor of a digital-friendly interface. The kit is comprehensive, featuring the HZ221 TrueZONE panel, a C7735A discharge air temperature sensor (DATS), and a dedicated 40 VA transformer to ensure stable 24V power delivery across the network.
For high-performance heat pump zoning, the HZ221K integrates advanced discharge air monitoring to protect equipment from high-limit or low-limit conditions. It features robust push-to-connect terminals that secure 18-to-20 gauge solid wire quickly, reducing installation time and Improving terminal reliability. This HVAC zone control kit supports variable-speed fan control through the DS/BK terminal and provides clear system diagnostics via common-sense LEDs, allowing technicians to verify zone damper operation and system status at a glance.
Key Benefits
- Simplified Commissioning: Utilizes a smaller footprint and digital logic, replacing legacy mechanical switches for a cleaner, professional installation.
- Equipment Protection: Included discharge air temperature sensor prevents coil freeze-ups and overheating by monitoring supply air in real-time.
- Universal Damper Compatibility: Seamlessly controls ARD, ZD, and RRD series dampers, providing flexible forced air zoning options for retrofit or new construction.
- Advanced Logic: Built-in auto changeover and emergency heat switch ensure the system maintains setpoints across different zones without manual intervention.
Common Questions
What thermostats are compatible with the HZ221K?
This panel is designed for heat pump thermostats configured for a cool changeover valve (O terminal). While it works with most 4-wire thermostats, the installer must ensure the subbase is correctly wired for 24VAC and the O/B logic matches the panel's requirements.
How many dampers can I wire to a single zone?
The included 40 VA transformer supports the panel (6.25 VA) and standard dampers. If your total VA draw exceeds 28.8 VA at 100°F per zone, you must utilize an SDCR (Slave Damper Control Relay) to isolate the additional load.
Can I use this for a dual-fuel or multi-stage system?
No, the HZ221K is specifically engineered for single-stage heat pump zoning with auxiliary heat (2H/1C). For dual-fuel or multi-stage conventional systems, the HZ322 or HZ432 panels are the appropriate technical choice.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
