Honeywell RM7890 Microprocessor-Based On/Off Primary Control

Models Available to Buy Online at Lesman.com
If the model you need isn't listed here, call Lesman at 800-953-7626.
On/Off primary control. 4- or 10-second pilot flame establishing period, intermittent main flame establishing period, intermittent pilot type. RM7890A1015
On/Off primary control with shutter drive capability. 4- or 10-second pilot flame establishing period, intermittent main flame establishing period, intermittent pilot type. RM7890B1014
On/Off primary control with Valve Proving feature and blinking LED fault annunciation. 4- or 10-second pilot flame establishing period, intermittent main flame establishing period, intermittent pilot type. RM7890A1056
On/Off primary control with Shutter Terminal available and blinking LED fault annunciation. 4- or 10-second pilot flame establishing period, intermittent main flame establishing period, intermittent pilot type. RM7890B1030
On/Off primary control with Valve Proving feature, shutter drive capability, and blinking LED fault annunciation. 4- or 10-second pilot flame establishing period, intermittent main flame establishing period, intermittent pilot type. RM7890B1048

Key Specifications

  • Functions include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics, and troubleshooting
  • Five LEDs provide sequence information. Optional local or remote annunciation of operation and fault information
  • Selectable relight or lockout on loss of flame
  • Valve proving feature tests valve seat integrity to detect a leak greater than 0.1% of burner input capacity
  • Requires S7800A1142 keyboard to set up valve proving (VPS) and change post-purge time

Supporting Documentation
Click the file icon to view the file online, or right-click on the file icon and select "Save Target As..." to download the file to disk for later viewing.

Type Description Size
Lesman Combustion and Flame Safety Solutions Catalog Lesman Combustion and Flame Safety Solutions Catalog 3.7MB
Honeywell RM7890A,B Microprocessor-Based On-Off Primary Controls Datasheet Honeywell RM7890A,B Microprocessor-Based On/Off Primary Controls Datasheet 484KB
Honeywell RM7890A,B Microprocessor-Based On-Off Primary Controls Installation Instructions Honeywell RM7890A,B Microprocessor-Based On/Off Primary Controls Installation Instructions 403KB
Honeywell RM7890 Microprocessor-Based On-Off Primary Controls Conversion Wiring Diagrams Honeywell RM7890 Microprocessor-Based On/Off Primary Controls Conversion Wiring Diagrams 112KB
Honeywell RM7890A1056, RM7890B1048 Microprocessor-Based On-Off Primary Controls with Valve Proving Brochure Honeywell RM7890A1056, RM7890B1048 On/Off Primary Controls with Valve Proving Brochure 134KB
Honeywell RM7890A1056, RM7890B1048 Microprocessor-Based On-Off Primary Controls with Valve Proving Installation Instructions Honeywell RM7890A1056, RM7890B1048 Valve Proving On/Off Primary Controls Installation Guide 773KB
Honeywell RM7890D, RM7895E,F Microprocessor-Based On-Off Primary Controls Datasheet Honeywell RM7890D, RM7895E,F Microprocessor-Based On/Off Primary Controls Datasheet 1.9MB
Honeywell RM7890D, RM7895E,F Microprocessor-Based On-Off Primary Controls Condensed Datasheet Honeywell RM7890D, RM7895E,F Microprocessor-Based On/Off Primary Controls Datasheet 435KB

 
Last Ed. Date: 08/24/2017 04:55 PM