Maintain the operational integrity of your heating equipment with the Williams P500472 Limit Switch

and specific heater models including the 1403

this specific model is a dedicated natural gas water heater valve

For technicians troubleshooting erratic unit behavior

perform system evacuation

Honeywell RM7800L1038 Primary Control 326058-758 Maintain the operational integrity ofThe Honeywell RM7800L1038 is a microprocessor based integrated burner control designed for automatic burner sequencing, flame supervision, and system status indication. This 7800 Series primary control is specifically configured for use with Fulton boilers and atmospheric burners, providing reliable on off combustion control. It features a programmable purge time and utilizes Solid State Flame Sensing technology to ensure rapid response to flame