
Tjernlund Products 950-1067 Timer and Relay
The Tjernlund 950-1067 Timer and Relay is a specialized post-purge control designed to maintain air flow after burner shutdown, effectively clearing combustion gases and preventing residual heat damage in side-wall power venting systems. This adjustable 1-to-10 minute timer relay serves as a direct replacement for legacy models 950-1060 (24 VAC) and 950-1065 (115 VAC), offering flexible field integration for HST-series side wall power venters, including HST-J, HST-1, and HST-2 units. Built for versatility, the 24/115 VAC timer relay handles dual-voltage control inputs, allowing contractors to standardize on a single part for both gas and oil-fired applications. Its non-polarity sensitive inputs simplify wiring, though continuous 115V power to terminals L1 and L2 is required for post-purge operation. Designed for high-duty cycles, this heavy-duty HVAC draft inducer timer features a rugged cube relay housing and precision adjustment pot for exact timing calibration, ensuring code-compliant venting performance and preventing nozzle drip odor in oil systems.
Key Benefits:
- Broad Compatibility: Functions as a universal replacement for Tjernlund power venter controls, specifically engineered for HST, SS2, and GPAK-1T models.
- Flexible Voltage Support: Accepts 24VAC or 115VAC control signals, making it suitable for both modern electronic ignition systems and older mechanical controls.
- Precision Safety: Maintains post-purge venting for 1 to 10 minutes to protect sensitive components from flue gas condensation and heat soak.
- Technical Reliability: Features an OEM-spec cube relay design rated for 1/4 H.P. at 120 VAC, ensuring robust motor switching in demanding venting environments.
Common Questions:
- Can this relay be used on non-Tjernlund venting systems? While designed for Tjernlund HST series, this adjustable post-purge timer is compatible with most inducer motor circuits requiring a timed-off delay, provided the load does not exceed 1/4 H.P.
- How do you adjust the post-purge duration? The timing is calibrated via a top-mounted adjustment screw. Turning the pot clockwise generally increases the delay up to the 10-minute maximum.
- Why does the venter run immediately when power is applied? This is a standard safety feature; the 950-1067 is programmed to automatically reset and trigger a post-purge cycle upon initial power-up.
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: $124.71
-65%$124.71
$43.65Tjernlund Products 950-1067 Timer and Relay
The Tjernlund 950-1067 Timer and Relay is a specialized post-purge control designed to maintain air flow after burner shutdown, effectively clearing combustion gases and preventing residual heat damage in side-wall power venting systems. This adjustable 1-to-10 minute timer relay serves as a direct replacement for legacy models 950-1060 (24 VAC) and 950-1065 (115 VAC), offering flexible field integration for HST-series side wall power venters, including HST-J, HST-1, and HST-2 units. Built for versatility, the 24/115 VAC timer relay handles dual-voltage control inputs, allowing contractors to standardize on a single part for both gas and oil-fired applications. Its non-polarity sensitive inputs simplify wiring, though continuous 115V power to terminals L1 and L2 is required for post-purge operation. Designed for high-duty cycles, this heavy-duty HVAC draft inducer timer features a rugged cube relay housing and precision adjustment pot for exact timing calibration, ensuring code-compliant venting performance and preventing nozzle drip odor in oil systems.
Key Benefits:
- Broad Compatibility: Functions as a universal replacement for Tjernlund power venter controls, specifically engineered for HST, SS2, and GPAK-1T models.
- Flexible Voltage Support: Accepts 24VAC or 115VAC control signals, making it suitable for both modern electronic ignition systems and older mechanical controls.
- Precision Safety: Maintains post-purge venting for 1 to 10 minutes to protect sensitive components from flue gas condensation and heat soak.
- Technical Reliability: Features an OEM-spec cube relay design rated for 1/4 H.P. at 120 VAC, ensuring robust motor switching in demanding venting environments.
Common Questions:
- Can this relay be used on non-Tjernlund venting systems? While designed for Tjernlund HST series, this adjustable post-purge timer is compatible with most inducer motor circuits requiring a timed-off delay, provided the load does not exceed 1/4 H.P.
- How do you adjust the post-purge duration? The timing is calibrated via a top-mounted adjustment screw. Turning the pot clockwise generally increases the delay up to the 10-minute maximum.
- Why does the venter run immediately when power is applied? This is a standard safety feature; the 950-1067 is programmed to automatically reset and trigger a post-purge cycle upon initial power-up.
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 Tjernlund 950-1067 Timer and Relay is a specialized post-purge control designed to maintain air flow after burner shutdown, effectively clearing combustion gases and preventing residual heat damage in side-wall power venting systems. This adjustable 1-to-10 minute timer relay serves as a direct replacement for legacy models 950-1060 (24 VAC) and 950-1065 (115 VAC), offering flexible field integration for HST-series side wall power venters, including HST-J, HST-1, and HST-2 units. Built for versatility, the 24/115 VAC timer relay handles dual-voltage control inputs, allowing contractors to standardize on a single part for both gas and oil-fired applications. Its non-polarity sensitive inputs simplify wiring, though continuous 115V power to terminals L1 and L2 is required for post-purge operation. Designed for high-duty cycles, this heavy-duty HVAC draft inducer timer features a rugged cube relay housing and precision adjustment pot for exact timing calibration, ensuring code-compliant venting performance and preventing nozzle drip odor in oil systems.
Key Benefits:
- Broad Compatibility: Functions as a universal replacement for Tjernlund power venter controls, specifically engineered for HST, SS2, and GPAK-1T models.
- Flexible Voltage Support: Accepts 24VAC or 115VAC control signals, making it suitable for both modern electronic ignition systems and older mechanical controls.
- Precision Safety: Maintains post-purge venting for 1 to 10 minutes to protect sensitive components from flue gas condensation and heat soak.
- Technical Reliability: Features an OEM-spec cube relay design rated for 1/4 H.P. at 120 VAC, ensuring robust motor switching in demanding venting environments.
Common Questions:
- Can this relay be used on non-Tjernlund venting systems? While designed for Tjernlund HST series, this adjustable post-purge timer is compatible with most inducer motor circuits requiring a timed-off delay, provided the load does not exceed 1/4 H.P.
- How do you adjust the post-purge duration? The timing is calibrated via a top-mounted adjustment screw. Turning the pot clockwise generally increases the delay up to the 10-minute maximum.
- Why does the venter run immediately when power is applied? This is a standard safety feature; the 950-1067 is programmed to automatically reset and trigger a post-purge cycle upon initial power-up.
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.












