RM7898A1000/U

On-Off Primary Ctrl w/VPS, Shutter Drive

Product Info
Literature

Overview

Integrated full-function primary burner control for gas, oil, or combination fuel single burner applications. Include Programmable Post Purge and Valve Proving Feature. Requires S7800A1142 Dsiplay to program VPS and post purge features.

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.
Programmable postpurge.
Five LEDs provide sequence information. Power LED Blinks Fault code on safety shutdown.
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.
Programmable post purge and Valve Proving feature with S7800A1142 Keyboard Display (not supplied).

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
Used With: 7800 Series Amplifiers
Weight (lb): 1 lb 15 oz
Weight (kg): 0.9 kg
Comments: Includes blinking LED fault annunciation feature
Frequency: 50 Hz; 60 Hz (±10%)
Approvals, Underwriters Laboratories Inc.: Component Recognized, File No. MP268; Guide No. MCCZ.
Approvals, Canadian Standards Association: Pending
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
Interlocks: Selectable
Preignition: Yes
PrePurge: Determined by ST7800A Purge Timer Card
PostPurge: programmed with S7800A1142 display
Required Components: Q7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier. ST7800A Plug-in Purge Timer Card.
Pilot Type: selectable
Vibration: 0.5 G environment
Approvals, Swiss RE: Acceptable
Approvals, Factory Mutual: Report No. OX4A5.AF.

Wiring-Wiring subbase and sequence chart for RM7898 without Valve Proving

Wiring-Wiring subbase and sequence chart for RM7898 with Valve Proving

Technical Documents

Installation Materials-Installation Instructions for RM7898A 7800 SERIES Valve Proving Primary Relay Modules (English)