
Tjernlund Products AS2 Hard Wire
For contractors looking to resolve temperature imbalances without the complexity of new duct runs, the Tjernlund AS2 AireShare Hard Wired transfer fan is the industry standard for room-to-room air movement. Engineered as a high-performance hard-wired room-to-room fan, this unit utilizes the existing wall cavity as a plenum to shift conditioned air between adjacent spaces. The system features a low-sone dual inlet blower designed for ultra-quiet operation, rated at just 1.5 sones. This makes it ideal for distributed HVAC air flow in residential applications where noise floor is a concern, such as bedrooms or home offices served by split systems, wood stoves, or masonry fireplaces.
The Tjernlund AS2 provides flexible installation logic; the intake blower and discharge diffuser can be configured in high-low or low-high orientations to optimize thermal stratification and provide effective heat transfer across a shared wall. With a 3-speed blower motor delivering up to 110 CFM, this unit is capable of supporting rooms up to 275 square feet while maintaining a low power draw of approximately 30 watts. Because this is a hard-wired model, it integrates cleanly into 120 VAC circuits, allowing for operation via standard wall switches, timers, or the optional FC24 fan center for 24V thermostat control.
Key Benefits for Your Installation:- Flexible Placement: Horizontal or vertical installation within standard 16-inch on-center stud cavities.
- Quiet Professional Performance: The dual-inlet blower assembly operates at 1.5 sones, minimizing sound transmission between rooms.
- Customizable Airflow: Factory-wired for high speed (110 CFM) but includes capacitors for field-adjustment to medium (95 CFM) or low (80 CFM) speeds.
- Aesthetic Integration: Includes paintable, low-profile grilles and a built-in turning vane in the diffuser to prevent air turbulence.
- Safety First: Features a thermally protected PSC motor designed for 32,000+ hours of operation.
Can the Tjernlund AS2 be installed in a fire-rated or exterior wall?
No. For safety and efficiency, this unit must not be installed in fire-rated assemblies or exterior walls. It is designed specifically for interior partition walls.
What is the best way to control the fan automatically?
While it can be wired to a simple ON/OFF switch, contractors often use the optional 24V Fan Center (FC24) to interface the AS2 with a remote thermostat for automated temperature equalization.
How do I ensure maximum efficiency with this transfer fan?
Ensure the target room has a "pressure relief" path, such as a door undercut or a return air grille. Without a return path, the fan will face high static pressure and airflow will be significantly restricted.
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: $330.79
-65%$330.79
$115.78Tjernlund Products AS2 Hard Wire
For contractors looking to resolve temperature imbalances without the complexity of new duct runs, the Tjernlund AS2 AireShare Hard Wired transfer fan is the industry standard for room-to-room air movement. Engineered as a high-performance hard-wired room-to-room fan, this unit utilizes the existing wall cavity as a plenum to shift conditioned air between adjacent spaces. The system features a low-sone dual inlet blower designed for ultra-quiet operation, rated at just 1.5 sones. This makes it ideal for distributed HVAC air flow in residential applications where noise floor is a concern, such as bedrooms or home offices served by split systems, wood stoves, or masonry fireplaces.
The Tjernlund AS2 provides flexible installation logic; the intake blower and discharge diffuser can be configured in high-low or low-high orientations to optimize thermal stratification and provide effective heat transfer across a shared wall. With a 3-speed blower motor delivering up to 110 CFM, this unit is capable of supporting rooms up to 275 square feet while maintaining a low power draw of approximately 30 watts. Because this is a hard-wired model, it integrates cleanly into 120 VAC circuits, allowing for operation via standard wall switches, timers, or the optional FC24 fan center for 24V thermostat control.
Key Benefits for Your Installation:- Flexible Placement: Horizontal or vertical installation within standard 16-inch on-center stud cavities.
- Quiet Professional Performance: The dual-inlet blower assembly operates at 1.5 sones, minimizing sound transmission between rooms.
- Customizable Airflow: Factory-wired for high speed (110 CFM) but includes capacitors for field-adjustment to medium (95 CFM) or low (80 CFM) speeds.
- Aesthetic Integration: Includes paintable, low-profile grilles and a built-in turning vane in the diffuser to prevent air turbulence.
- Safety First: Features a thermally protected PSC motor designed for 32,000+ hours of operation.
Can the Tjernlund AS2 be installed in a fire-rated or exterior wall?
No. For safety and efficiency, this unit must not be installed in fire-rated assemblies or exterior walls. It is designed specifically for interior partition walls.
What is the best way to control the fan automatically?
While it can be wired to a simple ON/OFF switch, contractors often use the optional 24V Fan Center (FC24) to interface the AS2 with a remote thermostat for automated temperature equalization.
How do I ensure maximum efficiency with this transfer fan?
Ensure the target room has a "pressure relief" path, such as a door undercut or a return air grille. Without a return path, the fan will face high static pressure and airflow will be significantly restricted.
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
For contractors looking to resolve temperature imbalances without the complexity of new duct runs, the Tjernlund AS2 AireShare Hard Wired transfer fan is the industry standard for room-to-room air movement. Engineered as a high-performance hard-wired room-to-room fan, this unit utilizes the existing wall cavity as a plenum to shift conditioned air between adjacent spaces. The system features a low-sone dual inlet blower designed for ultra-quiet operation, rated at just 1.5 sones. This makes it ideal for distributed HVAC air flow in residential applications where noise floor is a concern, such as bedrooms or home offices served by split systems, wood stoves, or masonry fireplaces.
The Tjernlund AS2 provides flexible installation logic; the intake blower and discharge diffuser can be configured in high-low or low-high orientations to optimize thermal stratification and provide effective heat transfer across a shared wall. With a 3-speed blower motor delivering up to 110 CFM, this unit is capable of supporting rooms up to 275 square feet while maintaining a low power draw of approximately 30 watts. Because this is a hard-wired model, it integrates cleanly into 120 VAC circuits, allowing for operation via standard wall switches, timers, or the optional FC24 fan center for 24V thermostat control.
Key Benefits for Your Installation:- Flexible Placement: Horizontal or vertical installation within standard 16-inch on-center stud cavities.
- Quiet Professional Performance: The dual-inlet blower assembly operates at 1.5 sones, minimizing sound transmission between rooms.
- Customizable Airflow: Factory-wired for high speed (110 CFM) but includes capacitors for field-adjustment to medium (95 CFM) or low (80 CFM) speeds.
- Aesthetic Integration: Includes paintable, low-profile grilles and a built-in turning vane in the diffuser to prevent air turbulence.
- Safety First: Features a thermally protected PSC motor designed for 32,000+ hours of operation.
Can the Tjernlund AS2 be installed in a fire-rated or exterior wall?
No. For safety and efficiency, this unit must not be installed in fire-rated assemblies or exterior walls. It is designed specifically for interior partition walls.
What is the best way to control the fan automatically?
While it can be wired to a simple ON/OFF switch, contractors often use the optional 24V Fan Center (FC24) to interface the AS2 with a remote thermostat for automated temperature equalization.
How do I ensure maximum efficiency with this transfer fan?
Ensure the target room has a "pressure relief" path, such as a door undercut or a return air grille. Without a return path, the fan will face high static pressure and airflow will be significantly restricted.
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.












