Honeywell RA890 BURNER CONTROL

Primary control provides solid state, electronic flame safeguard protection for industrial and commercial single or dual fuel burners for rectification type flame detection.

• Uses rectification principle of electronic flame detection.
• Replaces RA890E in most applications and mounts on same Q270A1024 Subbase.
• Recycles if flame signal lost while in Run. Failure to establish pilot results in a lockout.
• Safe-start check prevents start-up if flame-simulating failure occurs in flame detector circuit.
• Includes built-in protection against ignition crossover in flame rod systems.
• Includes SPDT alarm contacts.
• Solid state circuitry.
• Mounts and removes easily through use of captive mounting screws.
• Mounting base is made of strong thermoplastic.

Application

Primary control for rectification application (Flame Rod for example)

Dimensions (in.)

5 in. high x 5 in. wide x 4 3/4 in. deep (including subbase)

Dimensions (mm)

127 mm high x 127 mm wide x 121 mm deep (including subbase)

Temperature Range (F)

60 Hz models -20 F to +115 F,50 Hz models -20 F to +105 F

Temperature Range (C)

50 Hz Models -29 C to +41 C,60 Hz Models -29 C to +46 C

Frequency

50 Hz; 60 Hz

Approvals, Underwriters Laboratories Inc.

UL Listed: 120V models only; File No. MP268, Guide No. MCCZ

Approvals, CSA

CSA Certified: 120V models only; File No. LR1620

Voltage

220 Vac

Flame Failure Response Time (sec)

0.8 sec

Safety Switch Timing

15 seconds

Alarm Relay Switching

SPDT

Approvals, Factory Mutual

Approved: Report No. 17678,19417,19784