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 Flame Amplifier R7861A1034 For 7800 Series & R7140 Relay Modules - 0.8 Second Or 1 Second Flame failure response time of 0.8 or 3.0 seconds. Flame signal strength ranges from 0.0 to 5.0 Vdc. Plug into 7800 relay module through printed circuit board edge connector keyed for proper orientation. Flame signal test jacks to measure amplifier flame signal voltage. Color-coded labels identify flame detection type. Dynamic Self-Check Amplifier test the detectors and all electronic components in the flame detection system 7800 SERIES relay module locks out on safety shutdown with flame ...