Tjernlund Products 950-1040 Relay
The Tjernlund 950-1040 Relay is a specialized 24VAC VAC relay designed for demanding HVACR control circuits. As a field-proven power venter relay kit, this component is essential for technicians servicing Tjernlund HSUL series, HS-3, HS-4, and GPAK units. It facilitates critical interlocking between the appliance and draft inducer, ensuring the 24V control circuit can effectively trigger 115V motorized loads. When used as a replacement relay or an accessory for MAC-3 controllers and IN-FORCER combustion air intakes, it provides stable switching performance. Contractors should note that terminals 7 and 8 are exclusively for 24VAC input; applying 115VAC to these terminals will result in immediate component failure. This OEM replacement part includes wire leads and mounting hardware, serving as a direct drop-in for worn-out switching interfaces in side wall vent systems and draft induction setups.
Key Benefits:- Universal Compatibility: Engineered for seamless integration with Tjernlund HSUL-J, HS-1, and HS-2 power venters.
- Dual-Voltage Support: Specifically designed to bridge 24VAC control signals with 115V equipment operation.
- Rugged Construction: Built as a high-performance HVAC induction relay to withstand the rapid cycling of modern mechanical draft systems.
- Easy Installation: Includes a factory-standard mounting kit and wire leads for professional-grade panel wiring.
Can I use this relay for 115VAC control signals?
No. This relay is specifically rated for 24VAC on the coil terminals (7 and 8). Introducing line voltage to the control side will damage the unit.
Which venter models does the 950-1040 support?
It is the standard replacement for most Tjernlund power venter models, including the HSUL and GPAK-J series, as well as the MAC-3 and MAC-4 series controllers.
Is this a suitable replacement for a post-purge timer?
This is a standard relay. If your system requires a fixed or adjustable post-purge delay, you should verify if your control board handles the timing or if a dedicated relay-timer kit like the 950-1067 is required.
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: $58.35
-65%$58.35
$20.42Tjernlund Products 950-1040 Relay
The Tjernlund 950-1040 Relay is a specialized 24VAC VAC relay designed for demanding HVACR control circuits. As a field-proven power venter relay kit, this component is essential for technicians servicing Tjernlund HSUL series, HS-3, HS-4, and GPAK units. It facilitates critical interlocking between the appliance and draft inducer, ensuring the 24V control circuit can effectively trigger 115V motorized loads. When used as a replacement relay or an accessory for MAC-3 controllers and IN-FORCER combustion air intakes, it provides stable switching performance. Contractors should note that terminals 7 and 8 are exclusively for 24VAC input; applying 115VAC to these terminals will result in immediate component failure. This OEM replacement part includes wire leads and mounting hardware, serving as a direct drop-in for worn-out switching interfaces in side wall vent systems and draft induction setups.
Key Benefits:- Universal Compatibility: Engineered for seamless integration with Tjernlund HSUL-J, HS-1, and HS-2 power venters.
- Dual-Voltage Support: Specifically designed to bridge 24VAC control signals with 115V equipment operation.
- Rugged Construction: Built as a high-performance HVAC induction relay to withstand the rapid cycling of modern mechanical draft systems.
- Easy Installation: Includes a factory-standard mounting kit and wire leads for professional-grade panel wiring.
Can I use this relay for 115VAC control signals?
No. This relay is specifically rated for 24VAC on the coil terminals (7 and 8). Introducing line voltage to the control side will damage the unit.
Which venter models does the 950-1040 support?
It is the standard replacement for most Tjernlund power venter models, including the HSUL and GPAK-J series, as well as the MAC-3 and MAC-4 series controllers.
Is this a suitable replacement for a post-purge timer?
This is a standard relay. If your system requires a fixed or adjustable post-purge delay, you should verify if your control board handles the timing or if a dedicated relay-timer kit like the 950-1067 is required.
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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Product Information
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Description
The Tjernlund 950-1040 Relay is a specialized 24VAC VAC relay designed for demanding HVACR control circuits. As a field-proven power venter relay kit, this component is essential for technicians servicing Tjernlund HSUL series, HS-3, HS-4, and GPAK units. It facilitates critical interlocking between the appliance and draft inducer, ensuring the 24V control circuit can effectively trigger 115V motorized loads. When used as a replacement relay or an accessory for MAC-3 controllers and IN-FORCER combustion air intakes, it provides stable switching performance. Contractors should note that terminals 7 and 8 are exclusively for 24VAC input; applying 115VAC to these terminals will result in immediate component failure. This OEM replacement part includes wire leads and mounting hardware, serving as a direct drop-in for worn-out switching interfaces in side wall vent systems and draft induction setups.
Key Benefits:- Universal Compatibility: Engineered for seamless integration with Tjernlund HSUL-J, HS-1, and HS-2 power venters.
- Dual-Voltage Support: Specifically designed to bridge 24VAC control signals with 115V equipment operation.
- Rugged Construction: Built as a high-performance HVAC induction relay to withstand the rapid cycling of modern mechanical draft systems.
- Easy Installation: Includes a factory-standard mounting kit and wire leads for professional-grade panel wiring.
Can I use this relay for 115VAC control signals?
No. This relay is specifically rated for 24VAC on the coil terminals (7 and 8). Introducing line voltage to the control side will damage the unit.
Which venter models does the 950-1040 support?
It is the standard replacement for most Tjernlund power venter models, including the HSUL and GPAK-J series, as well as the MAC-3 and MAC-4 series controllers.
Is this a suitable replacement for a post-purge timer?
This is a standard relay. If your system requires a fixed or adjustable post-purge delay, you should verify if your control board handles the timing or if a dedicated relay-timer kit like the 950-1067 is required.
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.
