White-rodgers 36C03 400S1 Standing Pilot Gas Valve

Product Description

The WHITE-RODGERS 36C03 400S1 is a standing pilot gas valve designed for use in residential and light commercial heating appliances. It operates on a 24-volt AC coil and accepts 3/4-inch inlet and 3/4-inch outlet pipe connections. This valve controls gas flow to natural gas and liquid propane (LP) appliances equipped with a standing pilot ignition system. It includes an inlet pressure tap for field testing and commissioning. HVAC technicians and gas appliance service professionals install this valve as an OEM-style replacement in furnaces, boilers, and water heaters that use a thermocouple-based standing pilot safety circuit.

The 36C03 400S1 suits residential forced-air furnaces, boilers, and other heating appliances that rely on a standing pilot flame rather than electronic ignition. It is compatible with both natural gas and LP gas fuel types, making it a versatile replacement option across a range of standing pilot heating systems. The 3/4-inch pipe sizing fits standard residential and light commercial gas train configurations. Installers typically encounter this valve in older or mid-range appliance platforms where standing pilot controls remain in service.

Key Features

• 24-volt AC coil voltage compatible with standard low-voltage thermostat control circuits
• 3/4-inch x 3/4-inch pipe connections fit common residential gas train sizing
• Rated for both natural gas and LP gas fuel types
• Inlet pressure tap included for field pressure testing without additional fittings
• Standing pilot design integrates with thermocouple-based pilot safety systems

Compatibility

Designed as an OEM-style replacement standing pilot gas valve for residential and light commercial heating appliances using 24-volt control circuits and 3/4-inch pipe connections on natural gas or LP gas systems.

Installation Notes

Installation must be performed by a licensed HVAC technician or qualified gas service professional in accordance with local codes and the appliance manufacturer instructions. Shut off the main gas supply and disconnect power to the appliance before removing the existing valve. Verify inlet and outlet pipe sizing and thread type before installation, and confirm fuel type setting matches the appliance fuel source. After installation, perform a leak test at all pipe joints using an approved leak detection solution before returning the appliance to service.