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GENERAL
TABLE OF CONTENTS
GENERAL ................................................................................ 3
Introduction ............................................................................ 3
Installation ............................................................................ 3
Operation ............................................................................. 3
Cleaning .............................................................................. 3
Specifications .......................................................................... 3
Tools................................................................................. 4
Component Location .................................................................... 4
REMOVAL AND REPLACEMENT OF PARTS ....................................................5
Covers and Panels ...................................................................... 5
Front Panel ........................................................................ 5
Back Panel ........................................................................ 5
Momentary Power Switch (900rx) .......................................................... 5
Electric Igniter (900rx) ................................................................... 6
BASO
®
Safety Valve.....................................................................6
Thermostat Valve Assembly............................................................... 6
Burner................................................................................ 8
Pilot, Thermocouple Assembly ............................................................. 8
SERVICE PROCEDURES AND ADJUSTMENTS.................................................. 9
Calibration ............................................................................ 9
Pilot Adjustment ....................................................................... 10
Gas Pressure Measurement.............................................................. 10
Gas Pressure Regulator Adjustment ....................................................... 10
Burner Adjustment ..................................................................... 11
Thermocouple Test ..................................................................... 12
ELECTRICAL OPERATION..................................................................13
Electrical Diagram ..................................................................... 13
TROUBLESHOOTING ...................................................................... 15
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