Guardian PowerVent Training Manual SVC900; Rev 1
Page 1
Guardian PowerVent Training Manual
Flammable Vapor Ignition resistant (FVIR) compliant PowerVent water
heater manufactured after 1 January 2006
Table of Contents
INTRODUCTION ............................................................................................................................... 3
SAFETY............................................................................................................................................ 3
C
OMPONENTS OF A GUARDIAN POWERVENT WATER HEATER .................................................. 5
D
EFINITIONS ................................................................................................................................... 9
LOCKOUTS .................................................................................................................................... 10
SEQUENCE OF OPERATIONS ......................................................................................................... 11
TIMING AND SETTINGS ................................................................................................................ 17
DIAGNOSTIC FLASH CODES ......................................................................................................... 17
HOW TO INTERPRET THE FLASH CODES..................................................................................... 18
HOW TO CHECK THE VACUUM SWITCH..................................................................................... 22
HOW TO CHECK THE THERMISTOR (TEMPERATURE SENSOR) ................................................. 22
HOW TO CHECK THE ECO (ENERGY CUT-OFF) ........................................................................ 23
HOW TO CHECK THE GAS CONTROL VALVE.............................................................................. 23
HOW TO CHECK THE VENT OVER TEMPERATURE SAFETY SWITCH......................................... 24
HOW TO CHECK THE IGNITOR.................................................................................................... 24
HOW TO CHECK THE ELECTRONIC GAS CONTROL .................................................................... 25
HOW TO CHECK THE FLAMMABLE VAPOR SENSOR ................................................................... 26
CONNECTION DIAGRAM ............................................................................................................... 26
TROUBLESHOOTING TABLE ......................................................................................................... 28
HOW TO REMOVE THE GUARDIAN POWERVENT INNER ACCESS DOOR.................................... 31
HOW TO REMOVE THE GUARDIAN POWERVENT PILOT IGNITER ASSEMBLY ........................... 33
HOW TO REMOVE THE GUARDIAN POWERVENT GAS CONTROL .............................................. 35
H
OW TO REPLACE THE GUARDIAN POWERVENT VENT OVER TEMP SWITCH ......................... 37
HOW TO REPLACE THE GUARDIAN POWERVENT VACUUM SWITCH......................................... 39
H
OW TO REPLACE THE GUARDIAN POWERVENT ELECTRONIC CONTROL MODULE ............... 40
H
OW TO REPLACE THE GUARDIAN POWERVENT FLAMMABLE VAPOR (FV) SENSOR.............. 42
RESET PROCEDURES FOR INVENSYS CONTROL .......................................................................... 44
WHITE RODGERS GAS VALVE ..................................................................................................... 45
RESET PROCEDURES FOR WHITE RODGERS CONTROL.............................................................. 52
Index of Tables
Table 1 – Time and Temperature to Produce a Scald..................................................................... 3
Table 2 – Sequence of Operations ................................................................................................ 16
Table 3 – Timings and Settings .................................................................................................... 17
Table 4 – Diagnostic Flash Codes ................................................................................................ 18
Table 5 – FV Sensor Values ......................................................................................................... 26
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