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INSTALLATION
& SERVICING
LOGIC MAX
HEAT H 12 15 18 24 30
COMBI C
When replacing any part on this appliance, use only spare parts that you can be assured conform to the safety and performance
specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal Boilers.
For the very latest copy of literature for specification and maintenance practices visit our website idealboilers.com
where you can download the relevant information in PDF format.
February 2019
UIN 219010 A04
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Table of Contents
Related Manuals for Ideal Boilers LOGIC MAX HEAT H 18
Summary of Contents for Ideal Boilers LOGIC MAX HEAT H 18
- Page 1 When replacing any part on this appliance, use only spare parts that you can be assured conform to the safety and performance specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal Boilers.
- Page 2 ERP DATA MODEL SYMBOL UNITS Condensing Boiler Low Temperature Boiler B1 Boiler Cogeneration Space Heater Equipped with a Supplementary Heater Combination Heater Nominal Heat Output for Space Heating Full Load 12.1 15.1 18.0 24.3 30.3 Part Load Auxiliary Electricity Consumption Full Load 0.020 0.021...
- Page 3 PRODUCT FICHE LOGIC MAX HEAT H BOILER Ideal Boilers ERP DATA SYMBOL UNITS MODEL Condensing boiler Seasonal Space heating efficiency class Rated heat output ƞ Seasonal space heating energy efficiency Annual energy consumption Sound power level, indoors Seasonal Space Heating Energy Efficiency of the Boiler...
- Page 4 Installation and Servicing...
- Page 5 Relevant Installation changes implemented in this book from Mod Level ....A03 (Aug 18) to A04 (Feb 19) ERP Data (Page 2) Updated Nox Emissions figures Section 2.19 Condensate Drain Updated information and figures Section 3.1 & Page 66 Maximum and Minimum rates information Ideal Boilers reserve the right to vary specification without notice Installation and Servicing...
- Page 6 Installation and Servicing...
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Page 7: Table Of Contents
CONTENTS GENERAL ..............10 2.25 Commissioning & Testing ........... 39 Introduction ..............10 2.26 Initial Lighting ............. 40 Operation ..............10 2.27 General Checks ............41 Safe Handling ............. 10 2.28 Restart Procedure ............41 Optional Extra Kits ............. 10 2.29 Accessing The Installer Mode ........ -
Page 8: General
SECTION 1 - GENERAL Table 1 - General Data Gas supply 2H - G20 - 20mbar Gas Supply Connection 15mm copper compression Injector Size 4.15 4.15 4.15 4.15 4.65 Flow Connection Central Heating 22mm copper compression Return Connection Central Heating 22mm copper compression Flue Terminal Diameter - Turret Flue Terminal Diameter - Rear Flue Outlet (55/80) - Page 9 SECTION 1 - GENERAL IDEAL LOGIC MAX HEAT H Natural Gas only Boiler size G.C. Appliance No. (Benchmark No.) 41-796-17 41-796-18 41-796-19 41-796-20 41-796-21 Destination Country: GB, IE For GB, to comply with Building Regulations Part L1 (Part 6 in Scotland) the boiler should be fitted in accordance with the manufacturer’s instructions.
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Page 10: Introduction
SECTION 1 - GENERAL 1.2 OPERATION 1.1 INTRODUCTION When there is a demand for CH, the heating system is supplied at The Logic Max Heat H range of boilers are wall mounted, full the selected temperature of between 30 C and 80 sequence, automatic spark ignition, low water content, fanned flue, high efficiency, condensing, heating only gas boilers. -
Page 11: Safety
Installation and Servicing Instructions or as otherwise recommended by Ideal Boilers in writing. If in doubt please Braces for compartments must be easily removable for service access. enquire. -
Page 12: Gas Supply
SECTION 1 - GENERAL 1.8 GAS SUPPLY 4. Where the lowest part of the terminal is fitted less than 2m (6’6”) above a balcony, above ground or above a flat roof The local gas supplier should be consulted, at the installation to which people have access then the terminal MUST be planning stage, in order to establish the availability of an adequate protected by a purpose designed guard. -
Page 13: Terminal
SECTION 1 - GENERAL 1.14 ELECTRICAL SUPPLY 1.10 TERMINAL WARNING. The terminal assembly can be adapted to accommodate various This appliance must be earthed. wall thicknesses. Refer to Section 1.16. Wiring external to the appliance MUST be in accordance with 1.11 AIR SUPPLY the current I.E.E. -
Page 14: Boiler Dimensions, Services & Clearances
SECTION 1 - GENERAL 1.16 BOILER DIMENSIONS, SERVICES & CLEARANCES all dimensions in mm The boiler connections are made on the boiler connection tails. Refer to Section 2.20. wall thicknesses do not exceed 600mm. Where the space The following minimum clearances must be maintained for into which the boiler is going to be installed is less than operation and servicing. -
Page 15: Open Vent System Requirements
Should these conditions not apply either lower the pump position or raise the cistern above the minimum requirement specified by Ideal Boilers. The isolation valves should be fitted as close to the pump as possible. It is recommended that an automatic air vent should be fitted to the return connection. -
Page 16: Sealed System Requirements
SECTION 1 - GENERAL 1.19 LOW HEAD AND LARGE SYSTEMS WITH EXTENSIVE PIPE RUNS - OPEN VENT This arrangement is useful for large systems where radiators at the extremities are difficult to vent. This can lead to pumping over with conventional feed and vent arrangements. - Page 17 SECTION 1 - GENERAL SEALED SYSTEM REQUIREMENTS - continued 4. Expansion Vessel A diaphragm type expansion vessel must be automatic air vent. The stop valve may remain open connected to a point close to the inlet side of the during normal operation of the system if automatic pump, the connecting pipe being not less than 15 mm water make-up is required.
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Page 18: System Balancing
Benchmark Guidance Notes on Water Treatment in Central Heating Runcorn, Cheshire WA7 4QX Systems. Tel: 0800 389 4670 If water treatment is used Ideal Boilers recommend only the use of www.sentinel-solutions.net Scalemaster SM-1 PRO, FERNOX, MB-1, ADEY MC1, SENTINEL-X100, Scalemaster Water Treatment Products... -
Page 19: Installation
SECTION 2 - INSTALLATION 2.1 BOILER ASSEMBLY - Exploded View Note that item numbers are linked to the spares list HEAT EXCHANGER DRAIN FLUE MANIFOLD TOP IGNITOR UNIT PIPE - RETURN FLUE MANIFOLD - TOP SEALING CAP IGNITION LEAD FLOW MANIFOLD/ASSEMBLY FLUE MANIFOLD - REAR SEALING CAP HARNESS DETECTION LEAD GAS COCK... -
Page 20: Unpacking
SECTION 2 - INSTALLATION 2.2 UNPACKING The boiler is supplied fully assembled in Pack A. A telescopic or non-telescopic flue assembly for rear or side flue outlet in Pack B is suppled as a separate order. Unpack and check the contents. Pack A Contents Boiler Hardware Pack... -
Page 21: Front Panel Removal
SECTION 2 - INSTALLATION UNPACKING..CONT’D Note. This flue system incorporates a removable flue outlet nose that utilises a push fit location system. This enables the installation of deflector, high level or balcony outlet flue kits without the removal of the whole ‘B’ pack terminal. The appliance must not be operated without the desired outlet nose correctly fitted in place. -
Page 22: Wall Mounting Template
SECTION 2 - INSTALLATION 2.4 WALL MOUNTING TEMPLATE Extended centre line 1 5 5 (2 0 0 ) The wall mounting template is located on the internal protective A** - See Diagram in Section 1.16 packaging. The template shows the position of the fixing and rear flue centre holes for a standard installation Care MUST be taken to ensure the correct holes are drilled. -
Page 23: Determining The Flue Length & Flue Packs Req'd
SECTION 2 - INSTALLATION 2.8 DETERMINING THE FLUE LENGTH AND FLUE PACKS REQUIRED IMPORTANT. The boiler must be installed in a vertical position pipe work used and the bracket is located as close to the collar in accordance to the installation instructions. as possible. - Page 24 (1000mm long) B Pack cut 75mm * If wall thickness is <126 and >102.5, contact Ideal Boilers. For Flue lengths between 658 & 708 use a Horizontal Flue Terminal (1000mm long) B Pack, cut 75mm off the end of the terminal section of the telescopic flue only.
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Page 25: Cutting & Setting The Flue Length
SECTION 2 - INSTALLATION 2.9 CUTTING & SETTING THE FLUE LENGTH TELESCOPIC FLUES TELESCOPIC FLUE B PACK SHOULD ONLY BE ADJUSTED FOR USE WITHIN ITS SPECIFIED RANGE AND MUST NOT BE CUT HORIZONTAL FLUE TERMINAL (1000MM LONG) B PACK (TELESCOPIC) MUST ONLY BE CUT IF REQUIRED FLUE LENGTHS ARE BETWEEN 602 &... -
Page 26: Installing The Flue
SECTION 2 - INSTALLATION 2.10 INSTALLING THE FLUE FITTING FLUE THROUGH THE WALL 1. Measure wall thickness and add 14mm. 2. Measure from the outer terminal lip towards the end of outer flue, place a small location mark at the dimension acquired at point 1. 3. -
Page 27: Rear Flue Outlet Kit (55/80) Assy - Exploded View
SECTION 2 - INSTALLATION 2.11 REAR FLUE OUTLET KIT (55/80) ASSEMBLY - EXPLODED VIEW LEGEND 1. Duct Assembly 2. Plastic Connector 3. Wall Mounting Plate 2.12 TERMINAL WALL SEAL ASSEMBLY / POSITIONING Prior to fitting the flue, the rubber terminal wall seal provided Once the flue is installed it is IMPORTANT that the rubber in the flue pack MUST be fitted to the flue terminal as shown terminal wall seal is pressed against the outside wall to create... -
Page 28: Fitting The Wall Plate / Rear Flue Terminal Assy
SECTION 2 - INSTALLATION 2.14 FITTING THE WALL PLATE / REAR FLUE TERMINAL ASSEMBLY 1. Ensure the rubber terminal wall seal is fitted to the terminal. Refer to Section 2.12. 2. Insert the previously cut to length terminal assembly into the plastic connector. -
Page 29: Mounting The Boiler - Rear Flue Outlet Kit (55/80)
SECTION 2 - INSTALLATION 2.15 MOUNTING THE BOILER - REAR FLUE OUTLET KIT (55/80) 1. Remove the rear flue blanking disk. 2. Lift the boiler onto the wall plate, (refer to the introduction section for safe handling advice), ensuring the boiler is offered to the bracket tabs at an angle as shown below, and carefully allow the boiler to swing down to the wall as this movement engages the rear flue air and flue seal. -
Page 30: Fitting The Optional Roof Flue Kit (Flat Or Pitched)
SECTION 2 - INSTALLATION 2.16 FITTING THE OPTIONAL ROOF FLUE KIT (Flat or Pitched) Note. A flat or pitched roof flashing plate (not supplied) is required before proceeding with the installation of this kit. This kit is suitable for both flat and pitched roof terminations, using a concentric flue to run vertically from the top of the boiler and terminating above roof level. -
Page 31: Flue Terminal Position
SECTION 2 - INSTALLATION 2.17 FLUE TERMINAL POSITION The terminal should be positioned so that products of combustion can safely disperse at all times. Pluming may occur at the termination so, where possible, terminal positions where this could cause a nuisance should be avoided. -
Page 32: Assembling The Roof Flue Kit
SECTION 2 - INSTALLATION 2.18 ASSEMBLING THE ROOF FLUE KIT Determine the correct height that the flue should terminate above the roof. If after calculating or measuring the overall flue height from the top of the boiler, it is necessary to cut both pipes of assembly A, then ensure they are cut equally leaving the inner flue tube longer than the outer air tube as supplied. -
Page 33: Condensate Drain
SECTION 2 - INSTALLATION 2.19 CONDENSATE DRAIN Condensate Pump Where gravity discharge to an internal termination is not physically possible or where very long internal pipe runs would be required to reach a suitable discharge point, a condensate pump of a specification recommended by the boiler or pump manufacturer should be used terminating into a suitable internal foul water discharge point such as an internal soil and vent stack or internal... - Page 34 SECTION 2 - INSTALLATION CONDENSATE DRAIN - CONT’D..Figure 3 - Connection of a Condensate Pump Typical Figure 4 - Connection of condensate Drainage Pipe to Method (see manufacturers detailed instructions) External Soil & Vent Stack Boiler Water/weather Visible air break with 75mm proof insulation Boiler...
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Page 35: Connections
SECTION 2 - INSTALLATION 2.20 CONNECTIONS NOTES. Ensure all pipe blanking plugs are removed before connecting. Return Flow WATER CONNECTIONS The boiler flow and return pipes are supplied fitted to the boiler and ready for top connection. Top Connection Connect the system pipework to the boiler flow and return pipes. -
Page 36: Installer Wiring
SECTION 2 - INSTALLATION 2.22 INSTALLER WIRING The boiler must be connected to a permanent live supply which 5. Connect the mains cable to the terminal block as shown. must NOT be switched by thermostats / programmers. 6. Close the installer wiring cover ensuring that it is located To install the mains cable;... -
Page 37: Installer Wiring Plan Diagrams
SECTION 2 - INSTALLATION 2.23 INSTALLER WIRING PLAN DIAGRAMS LOGIC MAX HEAT H BOILER WITH Y PLAN SYSTEM Y PLAN FUSED VALVE SPUR BOILER SL 2 SL 1 MAINS IN CH ON TIMER HW ON HW OFF PUMP LOGIC MAX HEAT H BOILER WITH S PLAN SYSTEM S PLAN VALVE S PLAN... -
Page 38: Wiring Diagram
SECTION 2 - INSTALLATION 2.24 WIRING DIAGRAM Installation and Servicing... -
Page 39: Commissioning & Testing
SECTION 2 - INSTALLATION 2.25 COMMISSIONING AND TESTING B. Gas Installation A. Electrical Installation 1. The whole of the gas installation, including the meter, 1. Checks to ensure electrical safety should be carried out by a should be inspected and tested for tightness and purged in competent person. -
Page 40: Initial Lighting
SECTION 2 - INSTALLATION 2.26 INITIAL LIGHTING BOILER BOILER Legend ºC A. Central Heating Temperature Knob B. Mode Knob C. Boiler Status RESTART D. Burner ‘on’ Indicator E. Central Heating Economy Setting RESTART Button G. Function Button H. Gas Inlet Pressure Test Point Gas Service Cock Gas Supply 1. -
Page 41: General Checks
SECTION 2 - INSTALLATION 2.27 GENERAL CHECKS Make the following checks for correct operation: CENTRAL HEATING (CH) MODE WATER CIRCULATION SYSTEM 1. Ensure that the CH external controls are calling for 1. With the system COLD, check that the initial pressure is correct to heat. -
Page 42: Accessing The Installer Mode
SECTION 2 - INSTALLATION 2.29 ACCESSING THE INSTALLER MODE To access Installer Mode press the function button and “RESTART” 5. “dU” will be shown Buttons together for more than 5s. press the function button. 1. The last 3 faults will be shown 6. -
Page 43: Servicing
SECTION 3 - SERVICING 3.1 SERVICING SCHEDULE For the very latest copy of literature for specification & maintenance practices, visit our website www.idealboilers.com, where you will be able to download the relevant information. WARNING. Always turn OFF the gas supply at the gas service cock, and switch OFF and disconnect the electricity supply to the appliance before servicing. -
Page 44: Boiler Front Panel Removal / Replacement
SECTION 3 - SERVICING 3.2 BOILER FRONT PANEL REMOVAL / REPLACEMENT REMOVAL REPLACEMENT 1. Loosen the two screws retaining the front panel. 3. Hook the panel onto the top retaining clips. 2. Pull the two clips down to disengage and pull panel forward 4. -
Page 45: Burner Removal And Cleaning
SECTION 3 - SERVICING 3.4 BURNER REMOVAL AND CLEANING 1. Ensure the sump is fully drained 2. Undo the two screws and remove the sump cover retaining the lower flue manifold. 3. Lift the manifold to clear the bottom sealing gasket and remove manifold. -
Page 46: Cleaning The Heat Exchanger
SECTION 3 - SERVICING 3.6 CLEANING THE HEAT EXCHANGER Note: Ensure the condensate trap/siphon is fully drained before cleaning. Refer to Ignition Electrode Flame Detection Section 3.5. 1. Remove ignition and flame detection electrodes. Refer to Sections 3.13 & 3.14. 2. -
Page 47: Replacement Of Components
SECTION 3 - SERVICING 3.8 REPLACEMENT OF COMPONENTS GENERAL IMPORTANT. Ensure all gas valve connections are gas tight with a gas When replacing ANY component soundness check up to the gas control valve. 1. Isolate the electricity supply. When work is complete, the front panel must be correctly refitted - ensuring that a good seal is made. -
Page 48: Burner Injector Replacement
SECTION 3 - SERVICING 3.10 BURNER INJECTOR REPLACEMENT 1. Refer to Section 3.8. 2. Disconnect the electrical leads from the fan. 3. Remove the clip from the gas valve to venturi pipe and ease the pipe upwards, rotate and ease down to remove. -
Page 49: Control & Return Thermistor Replacement
SECTION 3 - SERVICING 3.12 CONTROL & RETURN THERMISTOR REPLACEMENT 1. Refer to Section 3.8. 2. Disconnect the electrical leads from the thermistors. 3. Unclip the flow thermistor from the flow pipe and withdraw it from the boiler. 4. Unclip the return thermistor from the return pipe and withdraw it from the boiler. -
Page 50: Flame Detection Electrode Replacement
SECTION 3 - SERVICING 3.14 FLAME DETECTION ELECTRODE REPLACEMENT 1. Refer to Section 3.8. 2. Remove the burner. Refer to Section 3.11. 3. Unplug the flame detection lead from the Flame Detection Electrode electrode. 4. Remove the 2 screws retaining the detection electrode. -
Page 51: Gas Control Valve Replacement
SECTION 3 - SERVICING 3.16 GAS CONTROL VALVE REPLACEMENT 1. Refer to Section 3.8. 2. Unplug the electrical lead connection from the gas control valve. 3. Remove the outlet gas valve clip and slide the pipe upwards 4. Undo the gas inlet pipe union at the inlet to the gas valve. -
Page 52: Pcb Replacement
SECTION 3 - SERVICING 3.18 PCB REPLACEMENT Note. Fit the earth strap provided with the PCB to your wrist and secure to a suitable earth on the boiler chassis. 1. Refer to Section 3.8. 2. Ensure the control knobs are in the 12 o clock position. 3. -
Page 53: Heat Engine Replacement
SECTION 3 - SERVICING 3.20 HEAT ENGINE REPLACEMENT Refer also to Section 2.1 - ‘Boiler Exploded View’ Note. To remove the flow and return pipe connections from the heat exchanger, it may be necessary to cut the pipes above the boiler. IMPORTANT 13. -
Page 54: External System Filter Cleaning Guide
SECTION 3 - SERVICING 3.21 EXTERNAL SYSTEM FILTER CLEANING GUIDE Switch off the boiler (isolate electrical supply). Close the inlet/outlet valves. Remove the drain valve cap. Open the drain valve. Remove the magnet. Slowly open the inlet valve to control the flow. Flush out the filter until the water runs clear. -
Page 55: Fault Finding
SECTION 4 - FAULT FINDING 4.1 FAULT FINDING CHART MAIN MENU In order to assist fault finding the boiler has a 7 segment display. The key to the display codes is as follows: GO TO SECTION 4.2 - ‘L1’ FLOW TEMPERATURE OVERHEAT LOCKOUT or NO WATER FLOW LOCKOUT GO TO SECTION 4.3 - ‘L2’... -
Page 56: L1' - Flow Temp O'heat Or No Water Flow Lockout
SECTION 4 - FAULT FINDING 4.2 ‘L1’ - FLOW TEMPERATURE OVERHEAT LOCKOUT OR NO WATER FLOW LOCKOUT Is the Boiler and CH System filled with water and all Fill and vent the system and open all isolation, system filter and radiator valves open? isolation valves, then restart boiler Check that the Pump is rotating freely. -
Page 57: L6' - False Flame Lockout
SECTION 4 - FAULT FINDING 4.4 ‘L6’ - FALSE FLAME LOCKOUT Check routing and integrity of internal boiler Restart the boiler, does Boiler Work OK? wiring is OK. Check condition of Flame Sense Electrode and replace if deteriorated. Separate the flame detection electrode in-line Replace Flame Detection Electrode connector. -
Page 58: F3' - Fan Fault
SECTION 4 - FAULT FINDING 4.8 ‘F3’ - FAN FAULT Does the wiring from the Fan to the PCB have secure connections at Rectify Wiring & connections both ends and has not deteriorated? Does the wiring have continuity? Replace PCB Is there 230Vac at the Blue and Brown connections to the 3 way connection on the Fan? Replace Fan... -
Page 59: No Ch Operation
SECTION 4 - FAULT FINDING 4.12 NO CH OPERATION Move the mode knob to the ON position Is the mode knob in the ON position? Switch the Timer, Room Stat and Cylinder Stat On Are the Timer and the Room Thermostat or cylinder thermostat switched on? Open the Radiator Valves Are the Radiator Valves Open? -
Page 60: Spare Parts
SECTION 5 - SPARE PARTS When replacing any part on this appliance use only spare parts that you can be assured conform to the safety and performance specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal. Failure to do so could affect safety or performance of this appliance. - Page 61 NOTES Installation and Servicing...
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Page 62: Benchmark & Commissioning
SECTION 5 - SPARE PARTS Installation and Servicing... - Page 63 Benchmark Commissioning and Servicing Section It is a requirement that the boiler is installed and commissioned to the manufacturers instructions and the data fields on the commissioning checklist completed in full. To instigate the boiler guarantee the boiler needs to be registered with the manufacturer within one month of the installation.
- Page 64 GAS BOILER SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. CONTROLS Programmable room thermostat Optimum start control...
- Page 65 SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider SERVICE 01 SERVICE 02 ² % ² % ² % ² % (Where Possible) (Where Possible) Signature Signature SERVICE 03 SERVICE 04...
- Page 66 FLOWCHART FOR CO LEVEL AND COMBUSTION RATIO CHECK ON COMMISSIONING A CONDENSING BOILER Important Preliminary Information on Checks The air gas ratio valve is factory-set and must not be adjusted DURING COMMISSIONING. If the boiler requires conversion to operate with a different gas family (e.g. conversion from natural gas to LPG) sepa- rate guidance is provided with the conversion kit supplied and this must be followed.
- Page 67 Start Set Boiler to Maximum Gas Rate Carry Out Flue Integrity Check Using Analyser In accordance with boiler instructions, Insert analyser probe into air inlet test point (where available) and allow set boiler to operate at maximum rate readings to stabilise. (full load condition).
- Page 68 NOTES Installation and Servicing...
- Page 69 NOTES Installation and Servicing...
- Page 70 For details of courses please ring: ... 01482 498432 Ideal Boilers Ltd. pursues a policy of continuing improvement in the design and performance of its products. The right is therefore reserved to vary specification without notice.
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Questions and answers
what is the best working temperature for boiler to be set at
The Ideal Boilers LOGIC MAX HEAT H 18 controls central heating radiator temperature up to a maximum of 80°C, adjustable via the central heating temperature knob. The recommended working temperature depends on the heating needs, but it typically ranges between 30°C (minimum) and 80°C (maximum).
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