RM7896D1027/U

On-Off primary control with pre/post purge-interrupted pilot and dynamic AFS test

Product Info
Literature

Overview

Microprocessor-based integrated full-function 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.

Features

Functions include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and troubleshooting.
Subbase, amplifier and purge card 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.
15 second postpurge.
Five LEDs provide sequence information.
Interchangeable plug-in flame amplifiers.
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 recycle or lockout on loss of airflow or flame.
Shutter drive output.
Airflow switch check.
Delayed main valve.

Product Specifications

Application: On-Off Primary Control with Pre and Post purge
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 15 oz
Weight (kg): 0.9 kg
Comments: Blinking Fault code LED, early spark termination when flame sensed, pre and post purge
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: 10 sec
Interlocks: Selectable
PrePurge: Determined by ST7800A Purge Timer Card
PostPurge: 60 sec
Required Components: Q7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier. ST7800A Plug-in Purge Timer Card.
AirFlow Check: Dynamic
Delayed Main Valve: Yes
Pilot Type: interrupted
Vibration: 0.5 G environment
Approvals, Swiss RE: Acceptable
Approvals, Factory Mutual: Report No. OX4A5.AF.

Technical Documents

Product Data and Specifications-Specification Data for 7800 SERIES: EC7895A,C; RM7895A,B,C,D; RM7896A,B,C,D RM7897A,C and RM7898A Relay Modules (Engli

Maintenance/Product Reference Materials-Safety Control Requirements for Ovens and Furnaces (National Fire Association-86)

Installation Materials-Installation Instructions for RM7895A,B,C,D/EC7895A,C; RM7896A,C,D 7800 SERIES Relay Modules

Installation Materials-Safety Manual RM/EC 7800 Burner Controller (English)