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Upgrade your old Flame Safety Honeywell or Fireye combustion controlsUpgrade your Honeywell RM7800 or RM7840 Burner Control Unit with a more efficient Kromschroder BCU 370 Burner Control

Convert your old, obsolete Honeywell flame supervision units with the latest, high quality units from Kromschröder! Use the chart below to determine model number and connection drawing to convert your combustion system today.

Energy Saving Purge Burner Controls

Your Honeywell Burner Control Upgrade to this Kromschroder Burner Control Voltage (Vac) Pilot Proving (sec) Flame Proving (sec) Post Purge (sec) Modulating Control Wiring Diagram Upgrade Now
RM7800E1002 BCU 370QFEU0D1 120 Vac 50Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7800E1004 BCU 370QFEU0D1 120 Vac 50Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7840E1000 BCU 370QFEU0D1 120 Vac 50Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7840E1008 BCU 370QFEU0D1 120 Vac 50Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7800E1010 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7800E1010 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7840E1016 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7840E1018 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10 or 15 15 4-wire modulating Yes

Modulating Burner Controls — Recycling

Your Honeywell Burner Control Upgrade to this Kromschroder Burner Control Voltage (Vac) FFRT (sec) Flame Proving (sec) Post Purge (sec) Modulating Control Wiring Diagram Upgrade Now
RM7800G1000 BCU 370QFEU0D1 120 Vac 50Hz 4 or 10 10, 15 or intermittent 15 4-wire modulating Yes
RM7840G1006 BCU 370QFEU0D1 120 Vac 50Hz 4 or 10 10, 15 or intermittent 15 4-wire modulating Yes
RM7800G1018 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10, 15 or intermittent 15 4-wire modulating Yes
RM7840G1014 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10, 15 or intermittent 15 4-wire modulating Yes

Modulating Burner Controls — Non-Recycling

Your Honeywell Burner Control Upgrade to this Kromschroder Burner Control Voltage (Vac) FFRT (sec) Flame Proving (sec) Post Purge (sec) Modulating Control Wiring Diagram Upgrade Now
RM7800L1004 BCU 370QFEU0D1 120 Vac 50Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7840L1000 BCU 370QFEU0D1 120 Vac 50Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7800L1012 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7840L1018 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7800L1038 BCU 370QFEU0D1 120 Vac 50/60Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7800L1046 BCU 370QFEU0D1 120 Vac 50/60Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7800L1053 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7840L1026 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10 or 15 15 4-wire modulating Yes
RM7800L1079 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10 or 15 15 4-wire modulating Yes

On/Off Burner Controls

Your Honeywell Burner Control Upgrade to this Kromschroder Burner Control Voltage (Vac) FFRT (sec) Flame Proving (sec) Post Purge (sec) Modulating Control Wiring Diagram Upgrade Now
RM7800M1003 BCU 370QFEU0D1 120 Vac 50Hz 4 or 10 10 or intermittent 15 On/Off Yes
RM7840M1009 BCU 370QFEU0D1 120 Vac 50Hz 4 or 10 10 or intermittent 15 On/Off Yes
RM7800M1011 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10 or intermittent 15 On/Off Yes
RM7840M1017 BCU 370QFEU0D1 120 Vac 60Hz 4 or 10 10 or intermittent 15 On/Off Yes

Latest Blog Post

  • Use the ZI-808 From the Internet
    One of the most exciting features of the ZI-808 is its built-in web server. Its user interface is designed like a standard web page and embedded into the instrument. That means that any device that can open a web page can use it. Desktop, laptop, tablet, smart phone, Android, Windows, iOS, Linux, Edge, IE, Chrome, Firefox. read full post
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