Honeywell Ultraviolet Amplifier R7849A1015, RM78XX & EC78XX Relay Mod., FFRT 0.8 Or 1 Sec., Purple

Panel mount subbase for 7800 SERIES relay modules and S7830A Expanded Annunciator

Burner or wall mount subbase for 7800 SERIES relay modules and S7830A Expanded Annunciator

Honeywell Electronic Protectorelay™ Flame Detection Control RA890F1270, FFRT 0.8 Sec., SPDT Features Primary control provides solid state, electronic flame safeguard protection for industrial and commercial single or dual fuel burners for rectification type flame detection Uses rectification principle of electronic flame detection Replaces RA890E in most applications and mounts on same Q270A1024 Subbase Recycles if flame signal lost while in Run. Failure to establish pilot results in a lockout Safe-start check prevents start-up if flame-simulating failure occurs in flame detector ...

Honeywell Purge Timer ST7800A1047 for 7800 Series - 40 Seconds Provides the prepurge timing for select 7800 SERIES relay modules.

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 ...