Robertshaw 4200-002 Gas Thermostat

The Robertshaw 4200-002 is a heavy-duty FDO gas thermostat engineered for high-capacity temperature regulation in demanding commercial kitchen environments. This commercial gas control operates across a 150°F to 550°F range, making it the standard choice for deck oven temperature control, convection ovens, and high-output ranges. Featuring a 7/16" tube inlet and outlet with a 48" nickel-plated copper capillary, this Robertshaw replacement thermostat utilizes a modulating snap-action bypass to maintain precision thermal stability. The FDO-11-01-48 model is designed for simplified field integration with its 4-way mounting versatility and front-accessible slotted adjustment keys for both pilot and bypass settings. This high-capacity gas valve ensures consistent performance under extreme heat, providing technicians with a reliable solution for restoring precise calibration to critical baking and cooking equipment without the marketing fluff found in consumer-grade components.

Key Benefits

• Precise Thermal Regulation: Delivers accurate modulation for commercial oven repair applications from 150°F to 550°F.
• Rugged System Compatibility: Built with heat-resistant materials designed to withstand the rigors of heavy-duty appliance manifolds.
• Streamlined Installation: Features a 4-way mounting position and a flexible 48" capillary for versatile routing.
• Dual Adjustment Access: Pilot and bypass keys are accessible from the front, allowing for easy gas thermostat calibration after installation.

Common Questions

How do I adjust the bypass flame on this model?
With the oven cold, turn the dial slowly from the off position until the burner snaps on. Remove the dial and use a screwdriver on the bypass adjustment screw to set a stable minimum flame, typically around 1/8” high.

Can this thermostat be mounted in different orientations?
Yes, the 4200-002 is designed for 4-way mounting, allowing the control body to be oriented to fit the specific manifold layout of your appliance.

Does this unit include a pilot outlet?
This specific 4200-002 configuration does not include a pilot outlet; it is designed for systems where the pilot is managed independently or through the main gas flow configuration.

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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.