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TABLE OF CONTENTS
SERVICE UPDATES ....................................................................................... 4
SERVICE UPDATES - SG .............................................................................. 4
GENERAL .................................................................................................. 5
INTRODUCTION ....................................................................................... 5
INSTALLATION ........................................................................................ 5
OPERATION ........................................................................................... 5
CLEANING ............................................................................................. 5
LUBRICATION ......................................................................................... 5
SPECIFICATIONS ...................................................................................... 5
TOOLS ................................................................................................. 5
REMOVAL AND REPLACEMENT OF PARTS ............................................................... 6
COVERS AND PANELS ................................................................................ 6
TOP FRONT COVER ............................................................................... 6
BOTTOM FRONT COVER .......................................................................... 6
CONTROL PANEL ................................................................................. 6
RIGHT SIDE PANEL ................................................................................ 6
CONTROL PANEL COMPONENTS ..................................................................... 7
COMPONENT PANEL COMPONENTS ................................................................. 7
TEMPERATURE PROBE ............................................................................... 8
GAS BURNER ......................................................................................... 8
GAS ORIFICE .......................................................................................... 9
GAS SOLENOID VALVE .............................................................................. 10
IGNITION CONTROL MODULE ....................................................................... 11
SPARK IGNITER AND FLAME SENSE ................................................................ 12
BLOWER AND MOTOR ............................................................................... 12
OVEN DOORS AND BEARINGS (INDEPENDENT DOORS) ............................................ 14
ROLLER LATCH ASSEMBLY (INDEPENDENT DOORS) ............................................... 15
DOOR WINDOW ...................................................................................... 15
DOOR SWITCH ....................................................................................... 16
HIGH LIMIT THERMOSTAT ........................................................................... 16
INTERIOR LIGHTS .................................................................................... 17
COOLING FAN ........................................................................................ 17
SERVICE PRODCEDURES AND ADJUSTMENTS ......................................................... 19
SOLID STATE TEMPERATURE CONTROL CALIBRATION ............................................ 19
SOLID STATE TEMPERATURE CONTROL TEST ..................................................... 20
TEMPERATURE PROBE TEST ....................................................................... 21
GAS VALVE PRESSURE CHECK ..................................................................... 21
VERIFICATION OF SPARK AT IGNITOR .............................................................. 22
DOOR SWITCH ADJUSTMENT ....................................................................... 22
BLOWER ADJUSTMENT .............................................................................. 23
DOOR ADJUSTMENT ................................................................................. 23
DOOR STRIKE ADJUSTMENT (INDEPENDENT DOORS) ............................................. 24
ELECTRICAL OPERATION ................................................................................ 26
COMPONENT FUNCTION ............................................................................ 26
COMPONENT LOCATION ............................................................................. 27
SEQUENCE OF OPERATION ......................................................................... 28
NORMAL CYCLE ................................................................................. 28
COOL DOWN CYCLE (SOLID STATE TEMPERATURE CONTROL) ................................ 30
SCHEMATICS ........................................................................................ 31
WIRING DIAGRAM .................................................................................... 31
TROUBLESHOOTING ..................................................................................... 32
ALL MODELS ......................................................................................... 32
SG SERIES GAS CONVECTION OVENS
F45525 Rev. A (0315) Page 2 of 33