DIGITAL BURNER CONTROLLER 
DBC2000 SERIES 
 
 
 
1. APPLICATION 
The Honeywell DBC2000 is a microprocessor-based 
integrated burner controller for automatically fired 
gas, oil or combination fuel industrial single burner 
power burner applications. The DBC2000 system 
consists of the relay module and wiring subbase. 
The DBC2000 Standard Model provides the 
minimum requirements to control an industrial 
burner system, such as automatic burner 
sequencing, flame supervision, system status 
indication, system or self-diagnostics and 
troubleshooting. The DBC2000 Enhanced Model 
includes an integrated Valve Proofing System, 
whilst the Ultimate model includes bus 
communication on top of this. 
The DBC2000 is programmed to provide a level of 
safety, functional capability and features beyond 
the capacity of conventional controls. 
2. FEATURES 
• 
Employs a plug-in mounting method 
•  Uses a microprocessor to improve performance 
•  Status and fault indication by indicator LEDs 
•  A 4-wire firing rate switching circuit controls an air 
damper motor or other auxiliary equipment during 
start-up of the burner. 
•  Safe start check before and during pre-purge 
•  Dual flame amplifier for UV, IR or flame rod sensor 
•  Automatic recycle once per 24h of uninterrupted 
heat demand.   
•  Frontal jack plug (Ø 3.5mm) to read the flame 
signal with a microampere meter. 
•  An electrical sub base lock (reset and safety limit 
terminals are swapped) to avoid that a Standard 
model is used systems wired for an Enhanced or 
Ultimate model. The DBC2000 cannot start then. 
•  Safety shutdown occurs on 
-  malfunction of the burner controller 
-  failure to ignite the pilot burner or main burner 
-  loss of flame during run period 
-  opening of air flow switch during pre-purge, start-
up, run and post-purge period 
-  flame signal detection during standby or pre-
purge period 
•  Integrated Valve Proofing System (Enhanced and 
Ultimate models only) 
•  Remote bus communication (Ultimate model only) 
 
Contents 
1. Application  1 
2. Features  1 
3. Specifications  2 
4. Dimensions  5 
5. Installation and wiring  6 
6. Operation  12 
7. Trouble shooting  14 
8. Approvals and Maintenance  23 
Appendix: VPS calculation and diagrams  25