Ideal Boilers LOGIC MAX HEAT H 18 Installation & Servicing

Also see for LOGIC MAX HEAT H 12: User guide

7Installation and ServicingCONTENTS1 GENERAL.................................................................. 101.1 Introduction ................................................................ 101.2 Operation ................................................................... 101.3 Safe Handling............................................................. 101.4 Optional Extra Kits ..................................................... 101.5 Safety ......................................................................... 111.6 Safe Handling Of Substances .................................... 111.7 Location Of Boiler ...................................................... 111.8 Gas Supply................................................................. 121.9 Flue Installation .......................................................... 121.10 Terminal...................................................................... 131.11 Air Supply ................................................................... 131.12 Water Circulation System ........................................... 131.13 Boiler Control Interlocks ............................................. 131.14 Electrical Supply......................................................... 131.15 Condensate Drain .................................................... 131.16 Boiler Dimensions, Services & Clearances ................ 141.17 Open Vent System Requirements .............................. 151.18 Schematic Pipework And System Balancing.............. 151.19 Low Head & Large Systems With Extensive Pipe Runs . 161.20 Sealed System Requirements.................................... 161.21 System Balancing ...................................................... 181.22 Water Treatment......................................................... 182 INSTALLATION ......................................................... 192.1 Boiler Assembly - Exploded View ............................... 192.2 Unpacking .................................................................. 202.3 Front Panel Removal ................................................. 212.4 Wall Mounting Template ............................................. 222.5 Preparing The Wall..................................................... 222.6 Fitting The Wall Mounting Plate (Turret Option) ......... 222.7 Mounting The Boiler ................................................... 222.8 Determining the Flue Length & Flue Packs Req’d .... 232.9 Cutting & Setting The Flue Length ............................. 252.10 Installing The Flue ...................................................... 262.11 Rear Flue Outlet Kit (55/80) Assy - Exploded View.... 272.12 Terminal Wall Seal Assembly / Positioning................. 272.13 Setting The Rear Flue Length .................................... 272.14 Fitting The Wall Plate / Rear Flue Terminal Assy ....... 282.15 Mounting The Boiler - Rear Flue Outlet Kit (55/80) .... 292.16 Fitting The Optional Roof Flue Kit (Flat Or Pitched) ... 302.17 Flue Terminal Position ................................................ 312.18 Assembling The Roof Flue Kit .................................... 322.19 Condensate Drain ...................................................... 332.20 Connections ............................................................... 352.21 Electrical Connections................................................ 352.22 Installer Wiring .......................................................... 362.23 Installer Wiring Plan Diagrams ................................... 372.24 Wiring Diagram .......................................................... 382.25 Commissioning & Testing ........................................... 392.26 Initial Lighting ............................................................. 402.27 General Checks ......................................................... 412.28 Restart Procedure ...................................................... 412.29 Accessing The Installer Mode .................................... 422.30 Handing Over ............................................................. 423 SERVICING ............................................................... 433.1 Servicing Schedule .................................................... 433.2 Boiler Front Panel Removal / Replacement ............... 443.3 Fan & Venturi Assembly Removal And Cleaning ....... 443.4 Burner Removal And Cleaning ................................... 453.5 Cleaning the Condensate Trap/Siphon ..................... 453.6 Cleaning the Heat Exchanger .................................... 463.7 Reassembly ............................................................... 463.8 Replacement Of Components .................................... 473.9 Fan Replacement ....................................................... 473.10 Burner Injector Replacement ..................................... 483.11 Burner Replacement .................................................. 483.12 Control & Return Thermistor Replacement ............... 493.13 Ignition Electrode Replacement ................................. 493.14 Flame Detection Electrode Replacement................... 503.15 Spark Generator Replacement .................................. 503.16 Gas Control Valve Replacement ................................ 513.17 Condensate Trap/Siphon Replacement ..................... 513.18 PCB Replacement...................................................... 523.19 Water Flow Switch Head Replacement ..................... 523.20 Heat Engine Replacement ......................................... 533.21 External System Filter Cleaning Guide...................... 544 FAULT FINDING ........................................................ 554.1 Fault Finding Chart Main Menu .................................. 554.2 ‘L1’ - Flow Temp O’heat or No Water Flow Lockout ... 564.3 ‘L2’ - Ignition Lockout ................................................. 564.4 ‘L6’ - False Flame Lockout ........................................ 574.5 ‘Fd’ - No Water Flow ................................................... 574.6 ‘F2’ Or ‘Fn’ or ‘Ln’ - Flame Loss ................................. 574.7 ‘F3’ - Fan Fault ........................................................... 584.8 ‘L4’ Or ‘F4’ - Control / No Flow Thermistor Fault ........ 584.9 ‘F5 Or L5’ - Return Thermistor Fault .......................... 584.10 ‘F6’ - Outside Sensor Fault......................................... 584.11 No CH Operation........................................................ 594.12 No Display .................................................................. 594.13 No DHW ..................................................................... 595 SPARE PARTS .......................................................... 606 BENCHMARK & COMMISSIONING ......................... 62