Modules Description
3
INTRODUCTION
MODULE DESCRIPTION
AND IDENTIFICATION
Relay Module Location
Logic Module Location
In this section, you will find descriptions of the various modules which comprise the
Relay Module
The relay module contains the output relays which provide power for operating the ignition coil, pilot valve, main valve, combustion fan and alarm.This module is mounted in the first position on the left of the motherboard closest to the output terminals.
Logic Module
The logic module houses the microcomputer which provides all the sequential logic and safety
Power Module
The power module supplies the power required for the electronic circuitry. It is mounted in the motherboard to the right of the logic module.The green LED on the front indicates that power is on to the
Power Module Location
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