Honeywell R7120M1019 Microprocessor Relay Module - Replacement Primary Control for Fireye M Series - Interrupted Pilot. The Honeywell R7120M Burner Control Modules are microprocessor-based integrated burner controls. It is a plug in replacement of Fireye M series controls for automatically fired gas, oil or combination fuel on/off single burner applications.

Features:

• Functions provided by the R7120M include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and troubleshooting.

• Plug in replacement for Fireye M series controls using the existing Fireye wiring subbase.

• Require ST7800 Purge Timer and appropriate R78XX Amplifier to complete the replacement.

Product Specifications:

• Application: Replacement Primary Control for Fireye M Series - Intermittent Pilot

• Flame Establishing Period - Pilot: 4 sec or 10 sec

• Flame Establishing Period - Main: Intermittent

• Interlocks: Running

• PrePurge: Determined by ST7800A Purge Timer Card

• PostPurge: Programmed with S7800A1142 display

• Required Components: R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier. ST7800 Plug-in Purge Timer Card.

• Voltage: 120 Vac (+10, -15%)

• Frequency: 50 Hz; 60 Hz

• AirFlow Check: User selectable

• Pilot Type: intermittent

• Vibration: 0.5 G environment

• Ambient Temperature Range (F): -40 F to +135 F

• Ambient Temperature Range (C): -40 C to +57 C

• Dimensions (in.): 7 in. wide x 6 5/32 high x 5 3/4 in. deep

• Dimensions (mm): 177 mm wide x 156 mm high x 146 mm deep

• Weight (lb): 3 lb 1 oz

• Weight (kg): 1.4 kg

• Approvals, Underwriters Laboratories Inc: Component Recognized, File No. MP268; Guide No. MCCZ.

• Approvals, Federal Communications Commission: FCC Part 15, Class B, Emissions.