The Honeywell RM7890A1056 Microprocessor-based integrated primary burner control for automatically fired gas, oil or combination fuel single burner applications.
Overview
Integrated on/off primary burner control for automatically fired gas, oil or combination fuel single burner applications. Contains Valve Proving Feature. Requires S7800A1142 Display to program VPS feature.
Features
- Functions include automatic burner sequencing, flame supervision, system status indication, system or self diagnostics and troubleshooting.
- Subbase and amplifier are required for operation.
- Power LED blinks Fault Code on lockout.
- 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.
- Contains Valve Proving Feature – require S7800A1142 Keyboard Display (not provided) to set up.
Product Specifications
Application | On-Off Primary Control w/VPS |
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 |
Weight (lb) | 1 lb 13 oz |
Weight (kg) | 0.8 kg |
Comments | Includes programmable VPS (Valve Proving Switch) check feature and blinking LED fault annunciation |
Frequency | 50 Hz; 60 Hz (±10%) |
Approvals, Underwriters Laboratories Inc. | Component Recognized, File No. MP268; Guide No. MCCZ. |
Approvals, Canadian Standards Association | Certified, File No. LR95329-3. |
Voltage | 120 Vac (+10, -15%) |
Shipping and Storage Temperature Range (F) | -40 F to +140 F |
Shipping and Storage Temperature Range (C) | -40 C to +60 C |
Approvals, Federal Communications Commission | FCC Part 15, Class B, Emissions. |
Flame Establishing Period – Pilot | 4 sec or 10 sec |
Flame Establishing Period – Main | Intermittent |
Preignition | Yes |
Required Components | Q7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier. |
Pilot Type | intermittent |
Vibration | 0.5 G environment |
Approvals, Swiss RE | Acceptable |
Approvals, Factory Mutual | Report No. OX4A5.AF |