Honeywell ICT - EC7850A1122/U EC7850A1122/U BURNER CONTROL, TIMINGS-LHL, HF/LF PROVING; 15 SECOND POSTPURGE

Burner Control Module for Gas, Oil and Combination Sytems

The Honeywell EC7850A Relay Module is a microprocessor based integrated burner control for automatically fired gas, oil, or combination fuel single burner full modulation (EC7850A) applications. The EC7850A consists of a Relay Module, a Subbase, Amplifier, and Purge Card are required to complete the system.

The Keyboard Display, which is optional, can be mounted on the Relay Module or on the face of a panel door, or mounted remotely from the panel. The 7800 SERIES is programmed to provide a level of safety, functional capability and features beyond the capacity of conventional controls. Safety features include - Interlock check, closed loop logic test, Dynamic input check, safety relay test, self-check logic, safe-start check, fire purge switch test and many more, which can be viewed on the display along with other pertinent data.

Further functions provided by the 7800 SERIES include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and troubleshooting. Text readout for the Keyboard Display Module is available in English, Spanish, Portuguese, French, German and Italian languages.

Honeywell EC7850A Relay Module Features

• Access for external electrical voltage checks
• Application flexibility and communication interface capability
• Five LEDs provide sequence information
• Five function Run/Test Switch
• Interchangeable plug-in amplifiers
• Local or remote annunciation of operation and fault information (optional)
• Non-volatile memory retains history files and lockout status after loss of power
• Compatible with existing Honeywell flame detectors