Ideal Heating LOGIC HEAT2 H12, Installation & Servicing

Page: 5 / 64

5 Installation and Servicing
Section 1 - General ............................................................................... 6
1.1 Introduction ............................................................................. 8
1.2 Operation ................................................................................ 8
1.3 Safe Handling ......................................................................... 8
1.4 Optional Accessories .............................................................. 8
1.5 Safety ...................................................................................... 8
1.6 Safe Handling of Substances ................................................. 9
1.7 Location of Boiler ................................................................... 9
1.8 Air Supply ............................................................................... 9
1.9 Gas Supply ........................................................................... 10
1.10 Water Circulation System ..................................................... 10
1.11 Boiler Controls ...................................................................... 10
1.12 Electrical Supply ................................................................... 10
1.13 Condensate Drain ................................................................. 10
1.14 Boiler Dimensions, Services & Clearances .......................... 11
1.15 Open Vent System Requirements ........................................ 12
1.16 Schematic Pipework and System Balancing ........................ 12
1.17 Low Head and Large Systems with Extensive Pipe Runs - .....
Open Vent ............................................................................. 13
1.18 Sealed System Requirements .............................................. 13
1.19 Sealed System Requirements - Cont. .................................. 14
1.20 System Balancing ................................................................. 15
1.21 Water Treatment ................................................................... 15
Section 2 - Installation ........................................................................ 16
2.1 Boiler Assembly - Exploded View ......................................... 16
2.2 Unpacking ............................................................................. 17
2.3 Wall Mounting Template ........................................................ 18
2.4 Preparing the Wall ................................................................ 18
2.5 Fitting the Wall Mounting Plate ............................................. 18
2.6 Mounting the Boiler .............................................................. 18
2.7 Flues and Locations .............................................................. 19
2.8 Flues and Locations - Cont ................................................... 20
2.9 Horizontal Flue Positions ..................................................... 21
2.10 Vertical Flue Positions ......................................................... 21
2.11 Flue System Dimensions .....................................................22
2.12 Fitting the Turret ....................................................................22
2.13 Cutting the Flue ....................................................................23
2.14 Assembling the Vertical Flue ................................................24
2.15 Rear Flue Outlet Kit (55/80) Assembly - ...................................
Exploded View ......................................................................25
2.16 Terminal Wall Seal Assembly / Positioning ...........................25
2.17 Setting the rear flue length - ....................................................
Wall Thickness of 115 mm to 442 mm .................................25
2.18 Fitting the Wall Plate / Rear Flue Terminal Assembly ........... 26
2.19 Mounting the Boiler - Rear Flue Outlet Kit (55/80) ................ 26
2.20 Condensate Drain ................................................................. 27
2.21 Condensate Drain - Cont’d ................................................... 28
2.22 Connections .......................................................................... 29
2.23 Electrical Connections .......................................................... 29
2.24 Installer Wiring ...................................................................... 29
2.25 Installer Wiring - Continued .................................................. 30
2.26 Installer Wiring - Cont ........................................................... 31
2.27 Pump Overrun - Install .......................................................... 31
2.28 Wiring Diagram .....................................................................32
2.29 Commissioning and Testing ..................................................33
2.30 Initial Lighting ........................................................................34
2.31 The Display ...........................................................................35
2.32 General Checks ....................................................................35
2.33 General Checks Cont. - Water Circulation ............................ 36
2.34 Restart Procedure ................................................................. 36
2.35 Accessing the Installer Mode ................................................ 37
2.36 Handing Over ........................................................................ 37
Section 3 - Servicing ........................................................................... 38
3.1 Servicing Schedule ............................................................... 38
3.2 Removal / Replacement of Components .............................. 39
3.3 Draining the Boiler ................................................................ 39
3.4 Boiler Front Panel Removal / Replacement .......................... 40
3.5 Flue Manifold Removal/Replacement ................................... 40
3.6 Fan and Venturi Assembly Removal and Cleaning ............... 41
3.7 Burner Removal and Cleaning ..............................................42
3.8 Cleaning the Heat Exchanger ...............................................42
3.9 Ignition / Detection Electrode Replacement / Inspection ......43
3.10 Cleaning the Condensate Trap .............................................43
3.11 Flow & Return Thermistor Replacement ...............................44
3.12 Burner Injector Replacement ................................................44
3.13 Burner Replacement .............................................................44
3.14 Spark Generator Replacement .............................................45
3.15 Gas Control Valve Replacement ...........................................45
3.16 Condensate Trap Replacement / Cleaning ........................... 46
3.17 Flow Switch Replacement .................................................... 46
3.18 Primary PCB Replacement ................................................... 46
3.19 Heat Engine Replacement .................................................... 47
Section 4 - Fault Finding ..................................................................... 48
4.1 Fault Finding Main Menu ...................................................... 48
4.2 ‘L 01’ - Overheat Lockout ...................................................... 49
4.3 ‘L 02’ - IGNITION Lockout ..................................................... 49
4.4 ‘L 06’ - Flame On Before Gas Valve On ................................ 50
4.5 ‘F 02 or FN or LN’ - Flame Loss ............................................ 50
4.6 ‘F 03’ - Fan Fault ................................................................... 51
4.8 Flow/Return Reversed .......................................................... 51
4.7 F 04 or L 04’ - Flow Thermistor Fault ................................... 51
4.9 ‘F 05 or L 05’ - Return Thermistor Fault ...............................52
4.10 ‘F 06’ - Outside Sensor Fault ................................................52
4.11 No CH Operation ..................................................................53
4.12 No Display ............................................................................54
4.13 No DHW Operation ...............................................................54
4.14 Flow/Return Differential Greater than 50°C ..........................54
Section 5 - Spare Parts ......................................................................55
Section 6 - Benchmark & Commissioning .......................................... 56
CONTENTS