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Honeywell RM7890 B 1014 Microprocessor-Based On/Off Primary Control, US $370 – Picture 0
Honeywell RM7890 B 1014 Microprocessor-Based On/Off Primary Control, US $370 – Picture 0

Honeywell Rm7890 B 1014 Microprocessor-based On/off Primary Control

US $370

  • Louisville, Kentucky, United States
  • Jun 17th
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Honeywell RM7890 B 1014 RM7890 Microprocessor-Based On/Off Primary Control 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. If I can assist you in troubleshooting or tailoring a flame relay for your needs, please contact. I have a wide selection of new, used, and refurbished Honeywell flame control devices, all verified with factory testing equipment for proper working condition and all with a standard 14 day refund or at your option, an expedited replacement if available.  If my Honeywell devices fail on startup, my warranty stands but feel free to contact as it's often a grounded field device or resolvable wiring issues . If you're seeing a #71 fault on your keyboard display for example, odds are you will only fry another relay module. Again, I'll refund/replace your purchased device but my ultimate intent is to keep my customers up and going.

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