INSTALLATION INSTRUCTIONS
32-00211-01
SIL
3
Capable
RM7838B, RM7838C
7800 SERIES Relay Modules
APPLICATION
The Honeywell RM7838B,C is a microprocessor based
integrated burner control for industrial process
semiautomatically fired gas, oil, coal or combination fuel
single burner modulation applications and available Valve
Proving System (VPS) feature. The RM7838B,C System
consists of a relay module, wiring subbase, keyboard
display module (KDM), amplifier, and purge card. Options
include personal computer interface, Data ControlBus
Module™, remote display mounting, first-out expanded
annunciator and Modbus™ network capable.
Functions provided by the RM7838B,C include automatic
modulated High Fire and Low Fire proven Purge, then the
sequence stops, waiting for a Start Switch input, flame
supervision, system status indication, system or self-
diagnostics and troubleshooting.
The RM7838C differs from the RM7838B as follows:
1. Alarms only on Safety Shutdown.
2. Has 15-second MFEP.
3. Requires ST7800C Purge Timer.
This document covers the following 7800 Series Relay
Modules:
RM7838B1021
RM7838B2021
RM7838C1012
RM7838C2012
This document provides installation and static checkout
instructions. Other applicable publications are:
Form Number Description
32-00110 S7800A2142 4-line LCD Keyboard
Display Module Product Data
32-00166 204729A/C KDM NEMA4 Covers for
4-line LCD KDM
65-0084 Q7800A,B 22-Terminal Wiring
Subbase Product Data.
65-0089 ST7800A,C Plug-In Purge Timer
Installation Instructions.
65-0288 S7800A1142 Keyboard Display
Module Product Data.
65-0091 S7810A Data ControlBus Module™
Product Data.
65-0095 S7820 Remote Reset Module Product
Data.
65-0097 221729 Dust Cover Installation
Instructions.
65-0101 S7830 Expanded Annunciator Product
Data.
3
2-00235
R7824, R7847, R7848, R7849, R7861,
R7862, R7886 Flame Amplifiers for
the 7800 Series Product Data.
65-0131 221818A Extension Cable Assembly
Product Data.
65-0229 7800 Series Relay Modules Checkout
and Troubleshooting Product Data.
65-0295 50023821-001/2 NEMA4 Covers for
2-line Keyboard Display Module
Contents
APPLICATION................................................................................ 1
SPECIFICATIONS......................................................................... 2
INSTALLATION ................................................................................... 2
FINAL WIRING CHECK .............................................................. 7
STATIC CHECKOUT............................................................................ 8
V
ALVE PROVING SYSTEM ................................................................ 11
P
RINCIPAL TECHNICAL FEATURES ................................................ 17
O
PERATION........................................................................................ 19
S
ETTINGS AND ADJUSTMENTS ....................................................... 21
T
ROUBLESHOOTING ......................................................................... 22
SAFETY AND SECURITY............................................................ 27
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