Table Of Contents - State Water Heaters SBD71120 Service Handbook

INTRODUCTION ......................................................................................2
Qualifications ................................................................................. 2
Service Warning ............................................................................ 2
Service Reminder .......................................................................... 2
Tools Recommended .................................................................... 2
INSTALLATION CONSIDERATIONS ....................................................... 3
Instruction Manual ......................................................................... 3
Closed Water Systems .................................................................. 3
Thermal Expansion ....................................................................... 3
Air Requirements .......................................................................... 3
Contaminated Air ........................................................................... 3
VENTING ..................................................................................................4
Power Vent Kits For Sidewall Venting ........................................... 5
GAS SUPPLY SYSTEMS .........................................................................6
Supply Gas Regulator ................................................................... 6
Gas Piping ..................................................................................... 7
FEATURES AND COMPONENTS ........................................................... 9
The Hydrocannon (Self-Cleaning System) .................................... 9
Automatic Flue Damper ................................................................ 9
GAS CONTROL VALVE ..........................................................................10
White Rodgers Integrated Temperature Control Switch ............... 11
Status LEDS ................................................................................. 11
Electronic Ignition Control/ Ignition Module .................................. 12
SEQUENCE OF OPERATION FLOW CHART ........................................ 13
TROUBLESHOOTING CHECKLIST ....................................................... 14
GENERAL SERVICE CHART ................................................................. 15
FAULT AND WARNING CODES ............................................................. 16
Step 1. Troubleshooting The Water Heaters ................................ 16
Flue Damper ................................................................................ 17
Effikal RVGP-KSF-Series Flue Damper Troubleshooting Guide .. 18
Step 2: Test For 24Vac Between Black And Orange On Damper PC
Board ............................................................................................ 19
Step 3: Test the Three AMP FUSE ............................................... 19
Symptoms for a blown fuse .......................................................... 20
Symptoms for a working fuse ....................................................... 20
Step 4: Test For 24VAC Between Black And Yellow On Damper PC
Board ............................................................................................ 21
Step 5: Wire Harness Test ........................................................... 21
Step 6: IID Module Test (Power To The Pilot Valve) ..................... 22
Step 7: Pilot Spark Test ................................................................ 23
Step 8: Flame Rectification .......................................................... 24
Step 9: IID Module Test ................................................................ 25
Step 10: Main Burner Test ............................................................ 26
WIRING DIAGRAM - 118/119 SERIES CONTROLS .............................. 27

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