Page 2 - Contents
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 2 Contents Safety Warning ..........................................................
Page 3 - bold italics
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 3 Safety Warning The purpose of this service manual is to provide sufficient info...
Page 4 - Specifications; Model
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 4 Specifications Model 871018N0 871018NF 875018NF 871018NF-B 875018NF-B 871018PF ...
Page 5 - Preset Temperature Adjustment; To adjust the preset temperature:
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 5 Preset Temperature Adjustment It is possible to choose a preset outlet water te...
Page 6 - Wiring Diagram - Models with Mechanical Bypass
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 6 Wiring Diagram - Models with Mechanical Bypass
Page 7 - Wiring Diagram - Models with Solenoid Operated Bypass
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 7 Wiring Diagram - Models with Solenoid Operated Bypass
Page 8 - Sequence of Operation
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 8 Sequence of Operation Refer to ‘Sequence of Operation Component Diagram’ on pag...
Page 9 - Sequence of Operation Component Diagram
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 9 Sequence of Operation Component Diagram 1 Hot Water Tap 2 Bypass Control Valve ...
Page 10 - When the unit is preset at 40 or 43 degrees.; Anti-Frost Heater Circuit
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 10 The solenoid operated bypass comprises a valve (located in the water body asse...
Page 11 - In-series Gas Boosting; Note: models ending with -B do not require a solar bypass valve; In-series Gas Boosting 871020-B Solar Loline Installation
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 11 In-series Gas Boosting Temperature controllers must not be fitted if this wate...
Page 12 - In-series Gas Boosting 871020-B Solar Hiline Installation; C for the system to operate correctly.
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 12 In-series Gas Boosting 871020-B Solar Hiline Installation Note: This plumbing ...
Page 13 - Solar Bypass Valve Operation; 0L models with a; Inlet water from
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 13 Note: If an 871020 model heater is replaced with an 871020-B model heater and ...
Page 14 - Removing a Solar Bypass Valve and Installing a Comparator
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 14 Removing a Solar Bypass Valve and Installing a Comparator 1. Ensure power and ...
Page 15 - In-series Gas Boosting 871020 Solar Loline Installation
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 15 In-series Gas Boosting 871020 Solar Loline Installation Note: For 871020 model...
Page 17 - Standard Controller
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 17 875 series models are factory set and limited so that they cannot deliver wate...
Page 18 - It does not stop either the
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 18 ON / OFF button This button must be pressed once to turn on the controller. Th...
Page 19 - How to Fault Find
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 19 How to Fault Find When conducting fault finding techniques it is important to ...
Page 20 - About the Operational Flow Charts; Notes and Abbreviations used on the Operational Flow Charts; Stepping gas rate change sequence by solenoid
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 20 About the Operational Flow Charts The Operational Flow Charts provide informat...
Page 21 - Operational Flow Charts; Note: see page 20 for details on interpreting chart abbreviations.
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 21 Operational Flow Charts Plug In Power On Operation Flow Chart 1 1 Initial chec...
Page 24 - Error Codes; Note: see page 20 for interpretation of abbreviations.
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 24 Error Codes The following table outlines the error codes, possible causes and ...
Page 25 - Diagnostic Test Points; Refer to wiring diagram, page 7, for connector and wiring positions.
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 25 Diagnostic Test Points Refer to wiring diagram, page 7, for connector and wiri...
Page 26 - Maintenance Information; Null; Right digit in; Null Null; Flame Sensor Status
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 26 Maintenance Information Information relating to both the current and past oper...
Page 27 - Displaying Maintenance Information
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 27 Displaying Maintenance Information Voltages up to 240 volts will be present wi...
Page 28 - Resetting Error Codes; To reset Error Code 99 it is necessary to:
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 28 Resetting Error Codes Most Error Codes can be reset by shutting off the hot wa...
Page 29 - Fault Diagnosis Sequence (Fault Finding Chart G)
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 29 Fault Diagnosis Sequence (Fault Finding Chart G) NOTE: The bars are displayed ...
Page 30 - Fault Finding Chart 1
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 30 Fault Finding Chart 1 Voltages up to 240 volts will be present within the wate...
Page 31 - Fault Finding Tests 1 – 4; Components will be “Live” when conducting tests, exercise caution.; Using an insulated tool, turn DIP switch 1 on
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 31 Fault Finding Tests 1 – 4 Components will be “Live” when conducting tests, exe...
Page 32 - Fault Finding Chart 2
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 32 Fault Finding Chart 2 System Not Ready Is error code 14 displayed? YES Replace...
Page 33 - Fault Finding Tests 5 – 8; Isolate power before removing connector plugs
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 33 Fault Finding Tests 5 – 8 Isolate power before removing connector plugs Test 5...
Page 34 - Fault Finding Chart 3
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 34 Fault Finding Chart 3 Ignition and Temperature Control Is error code 24 displa...
Page 35 - Fault Finding Tests 9 – 13; Tests 9 and 10 – Diagnostic Point 4; Test; Isolate power before removing
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 35 Fault Finding Tests 9 – 13 Isolate power when conducting resistance tests. “Li...
Page 36 - Fault Finding Chart 3.1
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 36 Fault Finding Chart 3.1 Is error code 72 displayed? YES NO False flame detecti...
Page 37 - Fault Finding Chart 3.2
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 37 Fault Finding Chart 3.2 YES Is gas available? Test 14 NO Open the gas isolatio...
Page 38 - Fault Finding Tests 14 – 22; Test 22 – Diagnostic Points 6 and 7; – Conduct test with water flowing
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 38 Fault Finding Tests 14 – 22 Isolate power when conducting resistance tests. “L...
Page 40 - Fault Finding Chart 3.6
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 40 Fault Finding Chart 3.6 Is error code 65 displayed? YES NO Water flow servo ma...
Page 41 - Fault Finding Tests 23 – 28; Test 23 - Diagnostic Point 18
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 41 Fault Finding Tests 23 – 28 Test 23 - Diagnostic Point 18 Test 24 - Diagnostic...
Page 42 - Fault Finding Chart 3.7
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 42 Fault Finding Chart 3.7 3.7 Is error code 16 displayed? **Is the Integrity inl...
Page 43 - Fault Finding Chart 3.8; Test 29 - Diagnostic Point 3; Isolate power when; Conduct test with water flowing
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 43 Fault Finding Chart 3.8 Fan current detecting circuit failure 3.8 NO 2 Replace...
Page 44 - Fault Finding Charts 4 and 4.1
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 44 Fault Finding Charts 4 and 4.1 1y = Water flow detected by water flow sensor 4...
Page 45 - Fault Finding Chart 4.2
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 45 Fault Finding Chart 4.2 4.2 YES Is a comparator fitted? NO Is a solar bypass v...
Page 46 - Fault Finding Chart 4.3
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 46 Fault Finding Chart 4.3 4.3 Replace the PCB assembly. Is the voltage between c...
Page 47 - Fault Finding Tests 32 and 33; Burner Gas Pressure Check
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 47 Fault Finding Tests 32 and 33 Components will be “Live” when conducting test, ...
Page 48 - Adjustment
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 48 Adjustment Adjustment of the burner pressure will not overcome problems associ...
Page 49 - Note which plug goes
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 49 Burner Change-Over Assembly: (Procedure 2) 1. Remove the front panel. Refer to...
Page 50 - o-ring from the base of the water heater.; Note: The proportional valve terminals are; Test for gas leaks with soapy water solution.
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 50 Proportional Gas Flow Regulating Valve: (Procedure 7) 1. Remove the front pane...
Page 51 - Heat Exchanger and Hot Water Outlet Connection Heaters; Reassemble in reverse order of above.
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 51 Anti-Frost Heaters: (Procedure 10) Note: Only models with an ‘F’ in the model ...
Page 52 - Reassemble in reverse order of above.
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 52 Ignition Pack Replacement: (Procedure 12) 1. Remove the front panel. Refer to ...
Page 53 - Isolate power at the water heater.; Bathroom Controllers:
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 53 Remote Controller: (Procedure 17) 1. Isolate power at the water heater. 2. Rem...
Page 54 - and remove flow sensor.
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 54 6. Remove 2 Philips head retaining screws holding flow sensor to water body as...
Page 60 - Description
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 60 Replacement Parts List Exploded View 3 – 871/875018-B & 871/875020-B Model...
Page 63 - Gas Type Conversion Procedure; Isolate the power and gas supply to the water heater.
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 63 Gas Type Conversion Procedure 1. Isolate the power and gas supply to the water...
Page 64 - Warranty; Rheem water heater literature; Warranty Exclusions; REPAIR AND REPLACEMENT WORK WILL BE CARRIED OUT AS SET OUT IN THE
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 64 Warranty Electronic Instantaneous Gas Water Heater Warranty (Australia only) W...
Page 65 - Document Revision History; Title: Integrity 18 & 20L Service Instructions; Revision Details; Models with Solenoid bypass added
TM002 Integrity 18 & 20L Service Instructions REV: E D.O.I: 7/11/2007 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled” 65 Document Revision History Title: Integrity 18 & 20L Service Instructions D...