Honeywell DBC2000 Series Product Handbook

ENS7003R0 KO06 2010
Flame signal is present
●◐○○○○◐◐
Air flow switch goes OFF
●◐◐○○○○◐
Ignition Trial
Ignition failure (flame signal is present during ignition-trial).
●○◐○○○○◐
Air flow switch goes OFF
●◐○◐○○○◐
Pilot
No flame signal
●○○◐○○◐◐
Air flow switch goes OFF
●◐○○◐○○◐
Main ignition Trial
No flame signal
●○○○◐○◐◐
Air flow switch goes OFF
●◐○○◐○○◐
Main ignition Stability
No flame signal
●○○○◐○◐◐
Air flow switch goes OFF
●◐○○○◐○◐
Run
No flame signal
●○○○○◐◐◐
No power is supplied to NO.3 terminal because of inter relay contact
failure.
●◐○◐◐○○◐
Flame signal is present for more than 10 seconds after heat demand
has ended.
●○○○○○◐◐
Post-purge
Air flow switch keeps ON more than 2 minutes after post-purge.
●◐○○○○○◐
*1 For LED indication, ○ means ‘off’ ● means ‘illuminated’ ◐ means ‘blinking’.
The LEDs are arranged in the following order: Standby, Purge, Ignition, Pilot, Main, Modulate, Flame and Alarm at the
left front side of the DBC2000E
.*2 If an error occurs during Standby, the DBC2000 will not lock-out but LEDs indicate the current error status.
In this case, the DBC2000 cannot start before the error is resolved.

Honeywell DBC2000 Series Specifications

General

Brand	Honeywell
Model	DBC2000 Series
Category	Controller
Language	English