Tjernlund Products 950-0029 Pressure Switch
As a veteran HVACR technician, you know that keeping a side-wall venter system online depends on precise airflow verification. The Tjernlund 950-0029 Pressure Switch is the mandatory fan proving switch designed specifically for Tjernlund SS2 venter systems. Featuring a non-adjustable set point factory-calibrated at -.40” W.C. on pressure drop, this replacement air pressure switch ensures the burner only fires when the draft inducer has established safe venting conditions. This "new style" plastic-bodied component facilitates more efficient field service with its internal junction box mount, which simplifies terminal access and protects high-voltage connections from environmental wear.
The Tjernlund SS2 service kit includes this switch to maintain the critical safety interlock between the motor and the gas or oil burner. Its compact 4x4x4-inch footprint allows for seamless HVAC ventilation repair in tight residential or light commercial footprints where wall-mount clearance is limited. When diagnosing "no-heat" calls on SS2 Draft Inducers, swapping in this genuine OEM Tjernlund part eliminates the calibration drift often found in generic "universal" alternatives. This switch is engineered for 115V applications and is essential for verifying the performance of your ventilation sequence.
Key Benefits for Technicians- Factory Calibrated Precision: Fixed set point of -.40” W.C. ensures safe furnace operation without the risk of field adjustment errors.
- Internal J-Box Design: The integrated junction box mount provides a cleaner wiring interface and increased protection for electrical terminals.
- SS2 Application-Specific: Engineered specifically as a draft inducer proving switch for the SS2 series, ensuring 100% mechanical and electrical compatibility.
- Durable Infrastructure: Built with high-grade plastic housing to resist the temperature fluctuations found near venter housings.
What are the signs of a failing Tjernlund 950-0029?
Most calls involve the burner failing to ignite despite the inducer motor running. If your manometer shows at least -.40” W.C. but the SS2 pressure switch contacts aren’t closing, the diaphragm has likely failed.
Can I use an adjustable pressure switch to replace the 950-0029?
No. Using an adjustable switch in place of this OEM Tjernlund SS2 replacement part is unsafe. The fixed set point is critical for the specific static pressure requirements of the SS2 venter housing.
How do I install the internal junction box version?
The 950-0029 is a fast HVAC service component that mounts directly inside the inducer’s electrical compartment, utilizing existing screw patterns for a drop-in replacement.
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: $102.84
-65%$102.84
$35.99Tjernlund Products 950-0029 Pressure Switch
As a veteran HVACR technician, you know that keeping a side-wall venter system online depends on precise airflow verification. The Tjernlund 950-0029 Pressure Switch is the mandatory fan proving switch designed specifically for Tjernlund SS2 venter systems. Featuring a non-adjustable set point factory-calibrated at -.40” W.C. on pressure drop, this replacement air pressure switch ensures the burner only fires when the draft inducer has established safe venting conditions. This "new style" plastic-bodied component facilitates more efficient field service with its internal junction box mount, which simplifies terminal access and protects high-voltage connections from environmental wear.
The Tjernlund SS2 service kit includes this switch to maintain the critical safety interlock between the motor and the gas or oil burner. Its compact 4x4x4-inch footprint allows for seamless HVAC ventilation repair in tight residential or light commercial footprints where wall-mount clearance is limited. When diagnosing "no-heat" calls on SS2 Draft Inducers, swapping in this genuine OEM Tjernlund part eliminates the calibration drift often found in generic "universal" alternatives. This switch is engineered for 115V applications and is essential for verifying the performance of your ventilation sequence.
Key Benefits for Technicians- Factory Calibrated Precision: Fixed set point of -.40” W.C. ensures safe furnace operation without the risk of field adjustment errors.
- Internal J-Box Design: The integrated junction box mount provides a cleaner wiring interface and increased protection for electrical terminals.
- SS2 Application-Specific: Engineered specifically as a draft inducer proving switch for the SS2 series, ensuring 100% mechanical and electrical compatibility.
- Durable Infrastructure: Built with high-grade plastic housing to resist the temperature fluctuations found near venter housings.
What are the signs of a failing Tjernlund 950-0029?
Most calls involve the burner failing to ignite despite the inducer motor running. If your manometer shows at least -.40” W.C. but the SS2 pressure switch contacts aren’t closing, the diaphragm has likely failed.
Can I use an adjustable pressure switch to replace the 950-0029?
No. Using an adjustable switch in place of this OEM Tjernlund SS2 replacement part is unsafe. The fixed set point is critical for the specific static pressure requirements of the SS2 venter housing.
How do I install the internal junction box version?
The 950-0029 is a fast HVAC service component that mounts directly inside the inducer’s electrical compartment, utilizing existing screw patterns for a drop-in replacement.
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
As a veteran HVACR technician, you know that keeping a side-wall venter system online depends on precise airflow verification. The Tjernlund 950-0029 Pressure Switch is the mandatory fan proving switch designed specifically for Tjernlund SS2 venter systems. Featuring a non-adjustable set point factory-calibrated at -.40” W.C. on pressure drop, this replacement air pressure switch ensures the burner only fires when the draft inducer has established safe venting conditions. This "new style" plastic-bodied component facilitates more efficient field service with its internal junction box mount, which simplifies terminal access and protects high-voltage connections from environmental wear.
The Tjernlund SS2 service kit includes this switch to maintain the critical safety interlock between the motor and the gas or oil burner. Its compact 4x4x4-inch footprint allows for seamless HVAC ventilation repair in tight residential or light commercial footprints where wall-mount clearance is limited. When diagnosing "no-heat" calls on SS2 Draft Inducers, swapping in this genuine OEM Tjernlund part eliminates the calibration drift often found in generic "universal" alternatives. This switch is engineered for 115V applications and is essential for verifying the performance of your ventilation sequence.
Key Benefits for Technicians- Factory Calibrated Precision: Fixed set point of -.40” W.C. ensures safe furnace operation without the risk of field adjustment errors.
- Internal J-Box Design: The integrated junction box mount provides a cleaner wiring interface and increased protection for electrical terminals.
- SS2 Application-Specific: Engineered specifically as a draft inducer proving switch for the SS2 series, ensuring 100% mechanical and electrical compatibility.
- Durable Infrastructure: Built with high-grade plastic housing to resist the temperature fluctuations found near venter housings.
What are the signs of a failing Tjernlund 950-0029?
Most calls involve the burner failing to ignite despite the inducer motor running. If your manometer shows at least -.40” W.C. but the SS2 pressure switch contacts aren’t closing, the diaphragm has likely failed.
Can I use an adjustable pressure switch to replace the 950-0029?
No. Using an adjustable switch in place of this OEM Tjernlund SS2 replacement part is unsafe. The fixed set point is critical for the specific static pressure requirements of the SS2 venter housing.
How do I install the internal junction box version?
The 950-0029 is a fast HVAC service component that mounts directly inside the inducer’s electrical compartment, utilizing existing screw patterns for a drop-in replacement.
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.
