Specifications

TM023 Integrity 26L Service Instructions REV: B
D.O.I: 17/10/2007
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
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Contents
Safety Warning ....................................................................................................................3
Introduction ..........................................................................................................................3
Water Heater Model Identification........................................................................................3
Specifications.......................................................................................................................4
Preset Temperature Adjustment ..........................................................................................4
Wiring Diagram ....................................................................................................................5
Sequence of Operation........................................................................................................6
Bypass Operation ................................................................................................................7
Anti-Frost Heater Circuit ......................................................................................................7
Product Changes .................................................................................................................8
Software Changes............................................................................................................8
Parts Replacement & Wiring Changes.............................................................................8
Parts Replacement Scenarios..........................................................................................9
In-series Gas Boosting.......................................................................................................12
Tempering Valves..............................................................................................................17
Remote Controllers............................................................................................................17
Standard Controller ........................................................................................................18
Deluxe Controller ...........................................................................................................20
Bath Fill Operation .............................................................................................................22
How to Fault Find...............................................................................................................23
Operational Flow Charts ....................................................................................................25
Error Codes .......................................................................................................................28
Diagnostic Test Points .......................................................................................................29
Maintenance Information ...................................................................................................30
Displaying Maintenance Information ..............................................................................31
Clearing Error Code History...............................................................................................31
Resetting Error Codes .......................................................................................................32
Fault Diagnosis Sequence (Fault Finding Chart G) ...........................................................33
Fault Finding Chart 1 .........................................................................................................34
Fault Finding Chart 2 .........................................................................................................36
Fault Finding Chart 3 .........................................................................................................38
Fault Finding Chart 3.1 ......................................................................................................40
Fault Finding Chart 3.2 ......................................................................................................41
Fault Finding Charts 3.3 and 3.5........................................................................................43
Fault Finding Chart 3.6 ......................................................................................................44
Fault Finding Chart 3.7 ......................................................................................................46
Fault Finding Chart 3.8 ......................................................................................................47
Fault Finding Charts 4 and 4.1...........................................................................................48
Fault Finding Chart 4.2 ......................................................................................................49
Fault Finding Chart 4.3 ......................................................................................................50
Fault Finding Chart 5 .........................................................................................................51
Burner Gas Pressure Check ..............................................................................................52
Component Replacement Procedures...............................................................................53
Exploded View 1 ................................................................................................................61
Exploded View 2 ................................................................................................................63
Gas Type Conversion Procedure.......................................................................................65
Warranty ............................................................................................................................67
Document Revision History................................................................................................68