Tjernlund Products 950-0640 Limit Switch
The Tjernlund Products 950-0640 is a critical L135F High Limit Switch designed specifically for SS1 and SS1-R Side Wall Vent Systems. As a veteran technician knows, maintaining the safety circuit in power venting applications is non-negotiable. This normally closed switch monitors internal temperatures and triggers a burner lockout if it detects an overheat condition, effectively preventing equipment damage or hazardous exhaust scenarios. Engineered for high-temperature sensing, it integrates seamlessly with the UC1 Universal Control board to provide reliable thermal protection in residential and light commercial HVAC exhaust systems.
When troubleshooting a venter lockout, verifying the continuity of the 950-0640 limit control is a primary diagnostic step. This OEM replacement part features a rugged construction that withstands the demanding environment of a venter cabinet. Its precise L135F temperature trip point is factory-calibrated to ensure the safety limit switch responds accurately to flue gas temperatures, maintaining system interlock integrity. For contractors performing power venter maintenance, keeping this switch on the truck ensures you can restore venting safety standards without multiple site visits.
Key Benefits:- Ensures precise overheat protection for Tjernlund SS1 and SS1-R models.
- Direct OEM replacement guarantees exact fit and terminal compatibility.
- Critical for maintaining the safety interlock circuit between the burner and venter.
- Rugged high-temperature construction for long-term field reliability.
- Essential component for code-compliant side wall venting installations.
- What does an L135F rating mean for this switch? It indicates the switch is designed to trip and open the circuit when temperatures reach 135 degrees Fahrenheit, protecting the power venter components.
- Is the 950-0640 a manual or auto-reset switch? This specific high limit switch typically requires a manual reset to ensure a technician inspects the cause of the overheat condition before the system resumes operation.
- How do I test if my Tjernlund limit switch is defective? With power disconnected, check for continuity across the terminals. Since it is a normally closed (NC) switch, a lack of continuity at room temperature indicates a failed component or a tripped state.
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.
Tjernlund Products 950-0640 Limit Switch
The Tjernlund Products 950-0640 is a critical L135F High Limit Switch designed specifically for SS1 and SS1-R Side Wall Vent Systems. As a veteran technician knows, maintaining the safety circuit in power venting applications is non-negotiable. This normally closed switch monitors internal temperatures and triggers a burner lockout if it detects an overheat condition, effectively preventing equipment damage or hazardous exhaust scenarios. Engineered for high-temperature sensing, it integrates seamlessly with the UC1 Universal Control board to provide reliable thermal protection in residential and light commercial HVAC exhaust systems.
When troubleshooting a venter lockout, verifying the continuity of the 950-0640 limit control is a primary diagnostic step. This OEM replacement part features a rugged construction that withstands the demanding environment of a venter cabinet. Its precise L135F temperature trip point is factory-calibrated to ensure the safety limit switch responds accurately to flue gas temperatures, maintaining system interlock integrity. For contractors performing power venter maintenance, keeping this switch on the truck ensures you can restore venting safety standards without multiple site visits.
Key Benefits:- Ensures precise overheat protection for Tjernlund SS1 and SS1-R models.
- Direct OEM replacement guarantees exact fit and terminal compatibility.
- Critical for maintaining the safety interlock circuit between the burner and venter.
- Rugged high-temperature construction for long-term field reliability.
- Essential component for code-compliant side wall venting installations.
- What does an L135F rating mean for this switch? It indicates the switch is designed to trip and open the circuit when temperatures reach 135 degrees Fahrenheit, protecting the power venter components.
- Is the 950-0640 a manual or auto-reset switch? This specific high limit switch typically requires a manual reset to ensure a technician inspects the cause of the overheat condition before the system resumes operation.
- How do I test if my Tjernlund limit switch is defective? With power disconnected, check for continuity across the terminals. Since it is a normally closed (NC) switch, a lack of continuity at room temperature indicates a failed component or a tripped state.
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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Product Information
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Description
The Tjernlund Products 950-0640 is a critical L135F High Limit Switch designed specifically for SS1 and SS1-R Side Wall Vent Systems. As a veteran technician knows, maintaining the safety circuit in power venting applications is non-negotiable. This normally closed switch monitors internal temperatures and triggers a burner lockout if it detects an overheat condition, effectively preventing equipment damage or hazardous exhaust scenarios. Engineered for high-temperature sensing, it integrates seamlessly with the UC1 Universal Control board to provide reliable thermal protection in residential and light commercial HVAC exhaust systems.
When troubleshooting a venter lockout, verifying the continuity of the 950-0640 limit control is a primary diagnostic step. This OEM replacement part features a rugged construction that withstands the demanding environment of a venter cabinet. Its precise L135F temperature trip point is factory-calibrated to ensure the safety limit switch responds accurately to flue gas temperatures, maintaining system interlock integrity. For contractors performing power venter maintenance, keeping this switch on the truck ensures you can restore venting safety standards without multiple site visits.
Key Benefits:- Ensures precise overheat protection for Tjernlund SS1 and SS1-R models.
- Direct OEM replacement guarantees exact fit and terminal compatibility.
- Critical for maintaining the safety interlock circuit between the burner and venter.
- Rugged high-temperature construction for long-term field reliability.
- Essential component for code-compliant side wall venting installations.
- What does an L135F rating mean for this switch? It indicates the switch is designed to trip and open the circuit when temperatures reach 135 degrees Fahrenheit, protecting the power venter components.
- Is the 950-0640 a manual or auto-reset switch? This specific high limit switch typically requires a manual reset to ensure a technician inspects the cause of the overheat condition before the system resumes operation.
- How do I test if my Tjernlund limit switch is defective? With power disconnected, check for continuity across the terminals. Since it is a normally closed (NC) switch, a lack of continuity at room temperature indicates a failed component or a tripped state.
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.
