{"product_id":"tjernlund-products-950-0750","title":"Tjernlund Products 950-0750 Fan Prover Kit","description":"\u003cp\u003eThe \u003cstrong\u003eTjernlund Products 950-0750 Fan Prover Kit\u003c\/strong\u003e is a critical safety component designed specifically for the \u003cstrong\u003eSS1C SideShot Series\u003c\/strong\u003e. As a veteran technician knows, maintaining proper draft pressure is non-negotiable for safe burner operation. This \u003cstrong\u003eSS1C fan proving switch\u003c\/strong\u003e kit serves as the primary interlock, ensuring the induced draft fan is generating sufficient negative pressure before the gas valve is permitted to energize. Built for the rigors of high-cycle heating applications, the \u003cstrong\u003eTjernlund 950-0750\u003c\/strong\u003e kit replaces faulty or aging sensors that can cause intermittent ignition failures or nuisance lockouts.\u003c\/p\u003e\n\n\u003cp\u003eInstallation of this \u003cstrong\u003edraft inducer pressure switch\u003c\/strong\u003e is streamlined for field service. The kit includes the necessary sensing tube connections and \u003cstrong\u003ebleed orifices\u003c\/strong\u003e (typically #40 or #52 depending on vent length) to calibrate the system to specific job site requirements. By monitoring the pressure within the fan housing, this \u003cstrong\u003eHVAC ventilation safety kit\u003c\/strong\u003e prevents hazardous conditions caused by restricted venting or motor failure. When diagnosing an SS1C unit that won't sequence, checking the prover kit for reliable contact closure is your first step to restoring system integrity and code-compliant operation.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Compatibility:\u003c\/strong\u003e Engineered as a direct \u003cstrong\u003eOEM replacement part\u003c\/strong\u003e for Tjernlund SS1-R and \u003cstrong\u003eSS1C SideShot\u003c\/strong\u003e inducer models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Pressure Monitoring:\u003c\/strong\u003e High-sensitivity diaphragm detects exact pressure thresholds to ensure safe \u003cstrong\u003ecombustion air verification\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Calibration:\u003c\/strong\u003e Includes multiple bleed orifices to accommodate vent connector lengths both under and over 10 feet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContractor-Grade Construction:\u003c\/strong\u003e Designed to withstand the thermal stress and pressure fluctuations of commercial and residential exhaust systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I determine which bleed orifice to use with the 950-0750?\u003c\/strong\u003e\u003cbr\u003e\nIf your vent connector length is less than 10 feet (3.1 meters), install the #52 bleed orifice. For runs exceeding 10 feet, the #40 orifice should be utilized to ensure accurate pressure detection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the wiring configuration for this fan proving switch?\u003c\/strong\u003e\u003cbr\u003e\nThe standard 950-0750 switch uses a Blue-to-Common and Yellow-to-Normally Open wiring configuration, allowing the burner circuit to be completed only once the fan creates the required vacuum.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy is my SS1C burner circuit tripping after 5 minutes of operation?\u003c\/strong\u003e\u003cbr\u003e\nA trip during operation typically indicates the prover switch has detected an unsafe venting condition, such as a blocked flue or a failing inducer motor. Verify the draft pressure and ensure the sensing tube is clear of obstructions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong style=\"color: red;\"\u003eThis item is not eligible for free shipping.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: 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.\u003c\/p\u003e","brand":"Tjernlund Products","offers":[{"title":"Default Title","offer_id":43465312862386,"sku":"950-0750","price":297.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Screenshot_2023-11-30_135102-removebg-preview.png?v=1701381115","url":"https:\/\/www.gsistore.com\/en-ca\/products\/tjernlund-products-950-0750","provider":"GSIstore","version":"1.0","type":"link"}