: Available in single-valve (normal throttle action) or dual-valve (snap throttle action for high-capacity needs).
: Ensure the red button is held down for at least one minute after lighting to engage the thermocouple. Invensys Thermostat Manual Model Fd
The (often branded under Robertshaw as the VC4200 series ) is a mechanical, heavy-duty commercial gas thermostat primarily used for high-capacity cooking equipment like deck ovens, pizza ovens, and convection ranges . Unlike modern residential digital thermostats, this model uses a throttling mechanism to provide precise temperature regulation for gas appliances. Key Specifications & Features Application : Designed for commercial gas-fired equipment. : Available in single-valve (normal throttle action) or
: For digital models, prying the front cover off and removing batteries for 5 minutes often performs a hard reset. For detailed installation diagrams, you can refer to
For detailed installation diagrams, you can refer to the Robertshaw VC4200 Commercial Installation Guide or the Invensys Heating and Cooling Basics Manual .
Turn the thermostat to "OFF" and wait five minutes for any accumulated gas to escape.