INSTALLATION INSTRUCTIONS
32-00214-01
RM7888A
7800 SERIES Relay Module
APPLICATION
The Honeywell RM7888A Relay Module is a
microprocessor based, integrated burner control for
industrial process semiautomatically fired gas, oil, coal, or
combination fuels for single and multiple burner
industrial applications. The RM7888A requires a Relay
Module, Subbase and Amplifier for operation. Options
include Keyboard Display Module, DATA CONTROLBUS
MODULE™, Modbus™ Module, and Remote Display
Mounting.
The RM7888 intended use is in conjunction with a master
system control. The master system control determines the
purge timing and confirms air supply and air flow. The
RM7888A is programmed to provide a level of safety,
functional capability and features beyond the capability of
conventional controls. The basic functions of the RM7888
include automatic burner startup sequencing, five user
selectable operating (run) sequences, four line voltage
sequence control inputs (commonly controlled with a
Programmable Logic Controller [PLC)], flame supervision,
system status indication, system or self-diagnostics and
troubleshooting.
This document covers the following 7800 Series Relay
Modules:
RM7888A1019
RM7888A1027
RM7888A2019
RM7888A2027
Contents
Specifications ............................................................................... 2
Ordering Information ................................................................ 2
Principal Technical Features .................................................. 9
Saftey Provisons .......................................................................... 10
Installation ..................................................................................... 11
Wiring ............................................................................................... 13
Assembly ......................................................................................... 15
Operation ........................................................................................ 19
Static Checkout ............................................................................ 30
Checkout ......................................................................................... 32
Troubleshooting ........................................................................... 38
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