Lennox 16W72 Twinning Kit
The Lennox 16W72 Twinning Kit (ATWIN580) is an essential field-installed accessory designed to synchronize the operation of two gas-fired furnaces within a shared duct system. Engineered for constant torque blower motors, this OEM Lennox furnace part ensures that both units respond simultaneously to a single thermostat call, maintaining balanced static pressure and airflow. This kit is a requirement for twinning Lennox furnaces to prevent air bypass and overheating issues typically caused by unsynchronized blower timing. It supports both single-stage and two-stage heating configurations, providing the necessary DPST relays and hardware to interface directly with the integrated primary and secondary control boards. By using this primary twinning control kit, contractors can effectively double heating capacity for large residential or light commercial applications while ensuring the blower motor speed and induction cycles remain perfectly in phase.
Key Benefits- Ensures simultaneous blower and inducer operation to prevent heat exchanger stress and airflow imbalance.
- Compatible with constant torque (ECM) blower motors for high-efficiency Lennox furnace models.
- Facilitates seamless furnace twinning for both single-stage and two-stage heating environments.
- Includes five double-pole single-throw (DPST) relays and 30 quick-disconnect terminals for secure wiring.
- Supports shared plenum applications, allowing two separate furnaces to act as a single high-capacity HVAC system.
Can I use the 16W72 kit to twin more than two furnaces?
No, this kit is specifically designed to synchronize a maximum of two gas-fired furnaces. Twinning three or more units is not supported and can lead to control board failure.
Is this kit compatible with variable speed (pure ECM) motors?
The 16W72 is primarily designed for constant torque blower motors. For variable speed models, you should verify the specific control board revision and terminal logic to ensure phased operation.
Do the furnaces need to be identical to use this twinning kit?
For optimal performance and to avoid pressure switch trip-outs, it is highly recommended to twin identical furnace models with matching BTU ratings and blower configurations.
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.
Original: $292.25
-65%$292.25
$102.29Lennox 16W72 Twinning Kit
The Lennox 16W72 Twinning Kit (ATWIN580) is an essential field-installed accessory designed to synchronize the operation of two gas-fired furnaces within a shared duct system. Engineered for constant torque blower motors, this OEM Lennox furnace part ensures that both units respond simultaneously to a single thermostat call, maintaining balanced static pressure and airflow. This kit is a requirement for twinning Lennox furnaces to prevent air bypass and overheating issues typically caused by unsynchronized blower timing. It supports both single-stage and two-stage heating configurations, providing the necessary DPST relays and hardware to interface directly with the integrated primary and secondary control boards. By using this primary twinning control kit, contractors can effectively double heating capacity for large residential or light commercial applications while ensuring the blower motor speed and induction cycles remain perfectly in phase.
Key Benefits- Ensures simultaneous blower and inducer operation to prevent heat exchanger stress and airflow imbalance.
- Compatible with constant torque (ECM) blower motors for high-efficiency Lennox furnace models.
- Facilitates seamless furnace twinning for both single-stage and two-stage heating environments.
- Includes five double-pole single-throw (DPST) relays and 30 quick-disconnect terminals for secure wiring.
- Supports shared plenum applications, allowing two separate furnaces to act as a single high-capacity HVAC system.
Can I use the 16W72 kit to twin more than two furnaces?
No, this kit is specifically designed to synchronize a maximum of two gas-fired furnaces. Twinning three or more units is not supported and can lead to control board failure.
Is this kit compatible with variable speed (pure ECM) motors?
The 16W72 is primarily designed for constant torque blower motors. For variable speed models, you should verify the specific control board revision and terminal logic to ensure phased operation.
Do the furnaces need to be identical to use this twinning kit?
For optimal performance and to avoid pressure switch trip-outs, it is highly recommended to twin identical furnace models with matching BTU ratings and blower configurations.
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.
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Description
The Lennox 16W72 Twinning Kit (ATWIN580) is an essential field-installed accessory designed to synchronize the operation of two gas-fired furnaces within a shared duct system. Engineered for constant torque blower motors, this OEM Lennox furnace part ensures that both units respond simultaneously to a single thermostat call, maintaining balanced static pressure and airflow. This kit is a requirement for twinning Lennox furnaces to prevent air bypass and overheating issues typically caused by unsynchronized blower timing. It supports both single-stage and two-stage heating configurations, providing the necessary DPST relays and hardware to interface directly with the integrated primary and secondary control boards. By using this primary twinning control kit, contractors can effectively double heating capacity for large residential or light commercial applications while ensuring the blower motor speed and induction cycles remain perfectly in phase.
Key Benefits- Ensures simultaneous blower and inducer operation to prevent heat exchanger stress and airflow imbalance.
- Compatible with constant torque (ECM) blower motors for high-efficiency Lennox furnace models.
- Facilitates seamless furnace twinning for both single-stage and two-stage heating environments.
- Includes five double-pole single-throw (DPST) relays and 30 quick-disconnect terminals for secure wiring.
- Supports shared plenum applications, allowing two separate furnaces to act as a single high-capacity HVAC system.
Can I use the 16W72 kit to twin more than two furnaces?
No, this kit is specifically designed to synchronize a maximum of two gas-fired furnaces. Twinning three or more units is not supported and can lead to control board failure.
Is this kit compatible with variable speed (pure ECM) motors?
The 16W72 is primarily designed for constant torque blower motors. For variable speed models, you should verify the specific control board revision and terminal logic to ensure phased operation.
Do the furnaces need to be identical to use this twinning kit?
For optimal performance and to avoid pressure switch trip-outs, it is highly recommended to twin identical furnace models with matching BTU ratings and blower configurations.
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.
