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On-Off Primary Control, Unit pack

RM7895A1048/U

On-Off Primary Control, Unit pack

  • Product Info
  • Literature

Overview

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.

Features

  • Functions include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and troubleshooting.
  • Subbase, amplifier, and prepurge timer 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.
  • Airflow switch check.

Product Specifications

Application
On-Off Primary Control with Prepurge
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 ignition cut-out during PFEP
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
Interlocks
Selectable
PrePurge
Determined by ST7800A Purge Timer Card
Early Spark Termination
Special Sequence
Required Components
Q7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier. ST7800A Plug-in Purge Timer Card.
Delayed Main Valve
No
Pilot Type
intermittent
Vibration
0.5 G environment
Approvals, Control Safety Devices
Acceptable: CSD-1
Approvals, Swiss RE
Acceptable
Approvals, Factory Mutual
Report No. OX4A5.AF.