American Water Heater 395T1996NOX Water Heater User Manual


 
1
Servicing should only be performed by a Qualied Service Technician
TABLE OF CONTENTS
INTRODUCTION ......................................................................2
QUALIFICATIONS .....................................................................2
TOOLS REQUIRED ....................................................................3
INSTALLATION CONSIDERATIONS .......................................................4
GAS AND ELECTRICAL CHARACTERISTICS ...............................................4
GAS PRESSURE – REQUIREMENTS .....................................................4
FEATURES AND COMPONENTS .........................................................8
BLOWER AND BURNER ASSEMBLY ......................................................9
SPARK IGNITER, FLAME SENSOR, SIGHT GLASS .........................................11
VENTING ...........................................................................12
VENTING TABLES
TECHNICAL VENTING DATA ..........................................14
OPERATION AND SERVICE ............................................................15
SEQUENCE OF OPERATION – FLOW CHART .............................................16
LIGHTING AND OPERATING LABEL .....................................................17
TROUBLESHOOTING .................................................................18
CONTROLS OVERVIEW - CONTROL BOX ASSEMBLY ......................................19
PRESSURE SWITCHES – ALL MODELS ..................................................19
HIGH LIMIT SWITCH/ DIGITAL THERMOSTAT .............................................20
CONTINUITY CHECK OF HIGH LIMIT (ECO)...............................................22
UPPER TEMPERATURE PROBE CONTINUITY CHECK ......................................23
LOWER TEMPERATURE PROBE CONTINUITY CHECK .....................................24
IGNITION CONTROL..................................................................25
START UP/ FLAME RECOVERY/ SAFETY LOCKOUT........................................26
UGB – BLOWER SPEED CONTROL .....................................................28
WIRING DIAGRAM ...................................................................29