HONEYWELL RM7890A1015 On-Off Primary Control. Microprocessor-based integrated primary burner control for automatically fired gas, oil or combination fuel single burner applications. Provides level of safety, functional capability and features beyond conventional controls.
Functions include automatic burner sequencing, flame supervision, system status indication, system or self diagnostics and troubleshooting.
Subbase and amplifier are required for operation.
Options include PC interface, keyboard display module, DATA CONTROLBUS MODULE, remote display module, first-out expanded annunciator, and COMBUSTION SYSTEM MANAGER software.
Five LEDs provide sequence information.
Interchangeable plug-in flame amplifiers.
Optional local or remote annunciation of operation and fault information.
Nonvolatile memory retains history files and sequencing status after power loss.
Optional remote reset capability.
Optional report generation.
Selectable relight or lockout on loss of flame.
Application: On-Off Primary Control
Flame Establishing Period - Pilot: 4 sec or 10 sec
Flame Establishing Period - Main: Intermittent
Required Components: Q7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier.
Voltage: 120 Vac (+10, -15%)
Frequency: 50 Hz
Frequency: 60 Hz (±10%)
Pilot Type: intermittent
Vibration: 0.5 G environment
Ambient Temperature Range (F): -40 F to +140 F
Ambient Temperature Range (C): -40 C to +60 C
Dimensions (in.): 5 in. wide x 5 in. high x 5 1/4 in. deep with Q7800A Subbase x 6 3/32 in. deep with Q7800B Subbase
Dimensions (mm): 127 mm wide x 127 mm high x 133 mm deep with Q7800A Subbase x 155 mm deep with Q7800B Subbase
Approvals, Underwriters Laboratories Inc: Component Recognized, File No. MP268; Guide No. MCCZ.
Approvals, Canadian Standards Association: Certified, File No. LR95329-3.
Approvals, Federal Communications Commission: FCC Part 15, Class B, Emissions.
Approvals, Industrial Risk Insurers: IRI Acceptable
Approvals, Factory Mutual: Report No. OX4A5.AF.