Honeywell Purge Timer ST7800A1039 for 7800 Series - 30 Seconds

Universal Electronic Fan Timer Made of carbon steel for long lasting durability. Control provides central wiring point for most electrical components in furnace. Monitors thermostat for heat, cool and fan demand for gas. Replace all existing Honeywell ST9120, ST9101, ST9141 and ST9160 models with the Universal Electronic Fan Timer. Integrates control of all combustion blower and circulating fan operations in gas warm air appliance. Replaceable fuse and DIP switch with selectable heat and cool delay for added flexibility. Diagnostic LED and continuous EAC and HUM terminal connections. ...

Features Microprocessor-based integrated full-function primary burner control for automatically fired gas, oil, or combination fuel single burner applications. Provides level of safety, functional capability and features beyond conventional controls. Include Programmable Post-Purge and Valve Proving Feature Functions include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and troubleshooting Subbase, amplifier and purge card are required for operation Options include PC interface, keyboard display module, DATA CONTROLBUS™ MODULE, ...

Features Microprocessor-based integrated primary burner control for automatically fired gas, oil, or combination fuel single burner applications. Provides level of safety, functional capability and features beyond conventional controls Functions include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and troubleshooting Subbase, amplifier, and PrePurge timer are required for operation Necessary accessories sold separately: PC interface, keyboard display module, DATA CONTROLBUS™ MODULE, remote display module, first-out expanded ...

Features Microprocessor-based integrated primary burner control for automatically fired gas, oil or combination fuel single burner applications. Provides level of safety, functional capability and features beyond conventional controls Functions include automatic burner sequencing, flame supervision, system status indication, system or self diagnostics and troubleshooting Subbase and amplifier are required for operation Power LED blinks Fault Code on lockout Necessary accessories sold separately: PC interface, keyboard display module, DATA CONTROLBUS™ MODULE, remote display module, ...

Honeywell Upgrade Replacement Programming Control R7140L1009, Use for R4140L Features The Honeywell R7140G, L, M Burner Control Modules are microprocessor-based integrated burner control for automatically fired gas, oil or combination fuel single burner applications Functions provided by the R7140G,L,M include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and troubleshooting Upgrade replacement for BC7000 or R4140 legacy Programmer controls