Robertshaw 4200-505 Gas Thermostat

The Robertshaw 4200-505 is a heavy-duty FDTH series commercial gas thermostat engineered for high-capacity temperature regulation in demanding kitchen environments. Designed for precise flow control, this unit features a wide 300°F to 650°F temperature range, making it a critical component for commercial deck ovens, convection units, and baking ranges. The 1/2" NPT gas inlet and outlet provide high-volume throughput, while the 48-inch capillary with a 3/16" x 14-3/4" nickel-plated bulb ensures flexible mounting and accurate thermal sensing even in deep oven cavities.

This gas oven control valve utilizes a modulating snap-acting bypass to maintain stable heat levels under peak operational loads. For mechanical contractors, the 4-way mounting position allows for simplified field installation across multiple appliance brands, including Blodgett and American Catering. The accessible front-facing pilot and bypass adjustment keys allow for rapid calibration without full disassembly, maximizing uptime for commercial cooking lines.

• High-Temperature Precision: Supports rigorous commercial kitchen equipment demands with a 650°F upper limit.
• Universal Application: Functions as a direct replacement for Robertshaw FDTH-1-05-48 and competitive models from Blodgett and Uni-Line.
• Rugged Build Quality: Constructed with heat-resistant materials and a nickel-plated sensing bulb for long-term durability in high-heat zones.
• Installation Versatility: Features a 4-way mounting configuration and a generous 48-inch capillary for complex internal routing.

What equipment is compatible with the Robertshaw 4200-505?
This commercial gas thermostat is primarily used in high-heat appliances such as deck ovens and convection ranges. It is a verified replacement for Blodgett part numbers 11527, 4605, and 4607.

Can I adjust the pilot and bypass on this unit?
Yes, the 4200 series features slotted pilot and bypass keys accessible from the front of the control, allowing for easy adjustment of the snap-acting bypass and pilot flame.

What is the connection size for this gas valve?
It features standard 1/2" NPT pipe connections for both the side inlet and side outlet, supporting high BTU output requirements.

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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.