Robertshaw 4350-027 Gas Thermostat

The Robertshaw 4350-027 Gas Thermostat is a heavy-duty commercial oven thermostat designed for high-demand kitchen environments. This BJWA series thermostat functions as a combination gas cock and bypass-type control, allowing technicians to engage the gas flow and set the operating temperature with a single turn of the dial. Engineered for commercial kitchen equipment repair, this unit supports a wide temperature range of 250°F to 550°F and is rated for a 70,000 BTU capacity. The assembly features a 48-inch capillary tube paired with a 3/16" x 11-3/16" sensing bulb, providing the reach and sensitivity required for accurate thermal regulation in deep oven cavities and griddle setups. With a 1/4" NPT main outlet and four-position (A, B, C, D) gas control valve compatibility, this kit offers specialized versatility for multifaceted installations. The modulating seat action ensures efficient gas modulation to maintain tight temperature tolerances during peak service hours.

• Universal Compatibility: Replaces BJWA series thermostats across major brands like Hobart, Vulcan, and South Bend.
• Integrated Control: Combines manual gas shut-off and thermal regulation into one heavy-duty oven control.
• Installation Flexibility: Can be mounted above or below the manifold using the included wide flange and four-way outlet orientations.
• Complete Kit: Includes a chrome bezel, black knob, stem length adapters, and various pilot fittings for immediate field replacement.

• How do I adjust the pilot and bypass settings on this model? This unit features front-accessible adjustment keys. The technician must set the bypass flame (typically 1/8” high) after the burner has reached a stable temperature to ensure the flame does not extinguish at low settings.
• Is the capillary tube length sufficient for double-stack ovens? The 48-inch capillary provides ample lead for most standard commercial ranges and griddles, but routing must avoid kinks to prevent fluid leaks inside the sensing line.
• Can this be converted for use with different gas types? While the thermostat handles flow modulation, specific orifice and pilot adjustments are required to calibrate for Natural Gas or LP (Propane) as per the equipment manufacturer's specifications.

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.