Ideal Boilers LOGIC MAX HEAT H 18, Installation & Servicing

7

Installation and Servicing

CONTENTS

1 GENERAL .................................................................. 10

1.1 Introduction ................................................................ 10
1.2 Operation ................................................................... 10
1.3 

Safe Handling ............................................................. 10

1.4 

Optional Extra Kits ..................................................... 10

1.5 Safety ......................................................................... 11
1.6 

Safe Handling Of Substances .................................... 11

1.7 

Location Of Boiler  ...................................................... 11

1.8 

Gas Supply ................................................................. 12

1.9 

Flue Installation .......................................................... 12

1.10 Terminal ...................................................................... 13
1.11  Air Supply ................................................................... 13
1.12  Water Circulation System ........................................... 13
1.13  Boiler Control Interlocks ............................................. 13
1.14  Electrical Supply ......................................................... 13
1.15  Condensate Drain   .................................................... 13
1.16  Boiler Dimensions, Services & Clearances ................ 14
1.17  Open Vent System Requirements .............................. 15
1.18  Schematic Pipework And System Balancing .............. 15
1.19  Low Head & Large Systems With Extensive Pipe Runs  . 16
1.20  Sealed System Requirements .................................... 16
1.21  System Balancing ...................................................... 18
1.22  Water Treatment......................................................... 18

2 INSTALLATION ......................................................... 19

2.1 

Boiler Assembly - Exploded View ............................... 19

2.2 Unpacking .................................................................. 20
2.3 

Front Panel Removal ................................................. 21

2.4 

Wall Mounting Template ............................................. 22

2.5 

Preparing The Wall ..................................................... 22

2.6 

Fitting The Wall Mounting Plate (Turret Option) ......... 22

2.7 

Mounting The Boiler ................................................... 22

2.8 

Determining the Flue Length & Flue Packs Req’d  .... 23

2.9 

Cutting & Setting The Flue Length ............................. 25

2.10  Installing The Flue ...................................................... 26
2.11  Rear Flue Outlet Kit (55/80) Assy - Exploded View .... 27
2.12  Terminal Wall Seal Assembly / Positioning................. 27
2.13  Setting The Rear Flue Length .................................... 27
2.14  Fitting The Wall Plate / Rear Flue Terminal Assy ....... 28
2.15  Mounting The Boiler - Rear Flue Outlet Kit (55/80) .... 29
2.16  Fitting The Optional Roof Flue Kit (Flat Or Pitched) ... 30
2.17  Flue Terminal Position ................................................ 31
2.18  Assembling The Roof Flue Kit .................................... 32
2.19  Condensate Drain ...................................................... 33
2.20 Connections ............................................................... 35
2.21  Electrical Connections ................................................ 35
2.22  Installer Wiring  .......................................................... 36
2.23  Installer Wiring Plan Diagrams ................................... 37
2.24  Wiring Diagram .......................................................... 38

2.25  Commissioning & Testing ........................................... 39
2.26  Initial Lighting ............................................................. 40
2.27  General Checks ......................................................... 41
2.28  Restart Procedure ...................................................... 41
2.29  Accessing The Installer Mode .................................... 42
2.30  Handing Over ............................................................. 42

3 SERVICING ............................................................... 43

3.1 

Servicing Schedule .................................................... 43

3.2 

Boiler Front Panel Removal / Replacement ............... 44

3.3 

Fan & Venturi Assembly Removal And Cleaning ....... 44

3.4 

Burner Removal And Cleaning ................................... 45

3.5 

Cleaning the Condensate  Trap/Siphon ..................... 45

3.6 

Cleaning the Heat Exchanger .................................... 46

3.7 Reassembly ............................................................... 46
3.8   Replacement Of Components .................................... 47
3.9 

Fan Replacement ....................................................... 47

3.10  Burner Injector Replacement ..................................... 48
3.11  Burner Replacement .................................................. 48
3.12  Control & Return Thermistor  Replacement ............... 49
3.13  Ignition Electrode Replacement ................................. 49
3.14  Flame Detection Electrode Replacement ................... 50
3.15  Spark Generator Replacement .................................. 50
3.16  Gas Control Valve Replacement ................................ 51
3.17  Condensate Trap/Siphon Replacement ..................... 51
3.18  PCB Replacement ...................................................... 52
3.19  Water Flow Switch Head Replacement  ..................... 52
3.20  Heat Engine Replacement ......................................... 53
3.21  External System Filter Cleaning Guide...................... 54

4 

FAULT FINDING ........................................................ 55

4.1 

Fault Finding Chart Main Menu .................................. 55

4.2 

‘L1’ - Flow Temp O’heat or No Water Flow Lockout ... 56

4.3 

‘L2’ - Ignition Lockout ................................................. 56

4.4 

‘L6’ - False Flame Lockout  ........................................ 57

4.5 

‘Fd’ - No Water Flow ................................................... 57

4.6 

‘F2’ Or ‘Fn’ or ‘Ln’ - Flame Loss ................................. 57

4.7 

‘F3’ - Fan Fault ........................................................... 58

4.8 

‘L4’ Or ‘F4’ - Control / No Flow Thermistor Fault ........ 58

4.9 

‘F5 Or L5’ - Return Thermistor Fault .......................... 58

4.10  ‘F6’ - Outside Sensor Fault......................................... 58
4.11  No CH Operation ........................................................ 59
4.12  No Display .................................................................. 59
4.13  No DHW ..................................................................... 59

5 

SPARE PARTS .......................................................... 60

6 

BENCHMARK & COMMISSIONING ......................... 62