Honeywell RM7890A1056/U on-off primary burner control with VPS 120VAC

Product Description

The Honeywell RM7890A1056/U is a microprocessor-based integrated on/off primary burner control designed for automatically fired gas, oil, or combination fuel single burner applications. Operating at 120VAC and 50/60 Hz, it includes a programmable Valve Proving Switch (VPS) check feature and blinking LED fault annunciation. This control supports an intermittent main flame establishing period and offers 4 or 10 second pilot flame establishing periods, functioning within -40 F to 140 F.

• Functions include automatic burner sequencing, flame supervision, system status indication, and self-diagnostics.
• Contains a Valve Proving Feature (VPS) that requires an S7800A1142 Keyboard Display for setup.
• The power LED blinks a fault code upon lockout, providing clear fault annunciation.

Product Highlights

Microprocessor-based control with programmable VPS and LED fault annunciation for single burner applications.

Product Information

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: RM7890A1056/U
• Country of Origin: Mexico

Technical Specifications

• Application: On-Off Primary Control With VPS
• Operating Conditions: -40 F To 140 F
• Frequency: 50/60 Hz
• Manufacturer: Honeywell HTS
• Part Number: RM7890A1056/U
• Approvals: UL, FM, CSA
• Input Voltage: 120vac
• Display Included: No
• Interlocks: Lockout, Running
• Main Flame Establishing Period: Intermittent
• Pilot Flame Establishing Period: 4 Sec, 10 Sec
• Pilot Type: Intermittent
• Preignition: Yes