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INSTALLATION
& SERVICING
LOGIC MAX SYSTEM
2
S15 S18 S24 S30
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 Heating.
For the very latest copy of literature for specification and maintenance practices visit our website idealheating.com
where you can download the relevant information in PDF format.
October 2022
UIN 228291 A06
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Related Manuals for Ideal Heating LOGIC MAX SYSTEM2 S15
Summary of Contents for Ideal Heating LOGIC MAX SYSTEM2 S15
- 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 Heating.
- Page 2 ERP DATA SYMBOL UNITS MODEL 15 kW 18 kW 24 kW 30 kW 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 15.1 18.1 24.3 30.3 Part Load...
- Page 3 PRODUCT FICHE LOGIC MAX SYSTEM S BOILER Ideal Heating ERP DATA SYMBOL UNITS MODEL 15 kW 18 kW 24 kW 30 kW Condensing boiler Seasonal space heating efficiency class Rated heat output Seasonal space heating energy efficiency ƞs Annual energy consumption...
- Page 4 LHS - Left Hand Side IE - Ireland ETCI - Electro-Technical Council of Ireland PCB - Printed Circuit Board BS - British Standard WRAS - Water Regulations Advisory Scheme Ideal Heating reserve the right to vary specification without notice Installation and Servicing...
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Page 5: Table Of Contents
CONTENTS Section 1 - General ..................6 Section 3 - Servicing ................. 35 Introduction ................... 8 Servicing Schedule ..............35 Operation ..................8 Removal / Replacement of Components ........36 Safe Handling ................8 Draining the Boiler ..............36 Optional Accessories ..............8 Boiler Front Panel Removal / Replacement ........ -
Page 6: Section 1 - General
Section 1 - General Table 1 General Data 15 kW 18 kW 24 kW 30 kW Gas Supply 2H-G20 - 20 mbar Gas Supply Connection 15 mm copper compression Injector Size 4.15 4.15 4.15 4.65 Flow Connection Central Heating 22 mm copper compression Return Connection Central Heating 22 mm copper compression... - Page 7 Section 1 - General LOGIC MAX SYSTEM Natural Gas Only BOILER SIZE G.C. Applicance No (Benchmark No.) 41-796-97 41-796-98 41-796-99 41-860-01 Destination Country: For UK, 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 8: Introduction
Section 1 - General INTRODUCTION SAFE HANDLING S range of boilers are wall mounted, The Logic Max System This boiler may require 2 or more operatives to move it to its full sequence, automatic spark ignition, low water content, installation site, remove it from its packaging base and during fanned flue, high efficiency, condensing, system gas boilers. -
Page 9: Safe Handling Of Substances
Do not connect external control devices directly to this appliance unless recommended in this manual or by Ideal Heating in writing. If in doubt, please enquire. Bathroom Installations Unapproved control devices could invalidate the warranty of this [0] Zone 0 appliance and infringe the Gas Safety Regulations. -
Page 10: Air Supply
Section 1 - General AIR SUPPLY 1.10 WATER CIRCULATION SYSTEM It is not necessary to have an air vent in the room or internal A minimum length of 1 metre of copper IMPORTANT: space where the boiler is installed. pipe MUST be fitted to both flow and return connections from the boiler before connection to any plastic piping. -
Page 11: Boiler Dimensions, Services & Clearances
Section 1 - General 1.14 BOILER DIMENSIONS, SERVICES & CLEARANCES Refer to Section 2.17 Side and Rear Flue The boiler connections are made on the boiler connection a. Provided that the flue hole is cut accurately, e.g. with a core tails. -
Page 12: System Requirements - Central Heating
Section 1 - General 1.15 SYSTEM REQUIREMENTS - CENTRAL HEATING a. The method of filling, refilling, topping up or flushing sealed Table 3 Vessel Sizing primary hot water circuits from the mains via a temporary hose connection is only allowed if acceptable to the local PRV setting water authority. -
Page 13: System Balancing
IMPORTANT The application of any other treatment Tel: +44 (0) 3301 007750 to this product may render the guarantee of Ideal Heating Sentinel Performance Solutions invalid. The Ideal System Filter will aid against the build up of iron www.sentinelprotects.com... -
Page 14: Section 2 - Installation
Section 2 - Installation BOILER ASSEMBLY - EXPLODED VIEW Flue Manifold Top CH Return Valve Water Pressure Switch Control Box Front CH Flow Valve Pressure Gauge Clamp Retaining Flue Turret Blank Insert Pump Head Gas Cock Hose Condensate Internal Heat Engine Auto Air Vent Gas Valve Condensate Trap... -
Page 15: Unpacking
Section 2 - Installation UNPACKING Unpack and check the contents 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. Pack A Contents Boiler Hardware Pack Box... -
Page 16: Wall Mounting Template
Section 2 - Installation WALL MOUNTING TEMPLATE Extended centre line “A” 1 5 5 (2 0 0 ) IMPORTANT: Ensure the wall where the boiler will be is flat. The wall mounting template is located on the internal protective packaging. The template shows the position Refer to Section of the fixing and rear flue centre holes for a standard installation. -
Page 17: Flues And Locations
Section 2 - Installation FLUES AND LOCATIONS This installation & servicing manual must be read in conjunction with flue kit and fitting guide. Flue deflector Horizontal flue Flue extension Vertical flue Telescopic horizontal flue 0.6 or 0.8 m terminal and 0.5 m, 1 m or 2 m connector 0.5 or 0.7 m... -
Page 18: Flues And Locations - Continued
Section 2 - Installation FLUES AND LOCATIONS - CONTINUED B = Top Clearance Flue systems that require extension kits must be installed Top Clearance is measure from the top of the turret to the top with a 1.5° decline from the flue terminal back to the boiler. of the hole where the flue terminates. -
Page 19: Horizontal Flue Positions
Section 2 - Installation HORIZONTAL FLUE POSITIONS Facing the boundary Opening in adjacent building Boundary a. < 1000 300 c. 600 d. 300 b. Parallel to the boundary At an angle to the boundary All measurements : mm Refer to Table 4 2.10 VERTICAL FLUE POSITIONS Height Difference ‘A’... -
Page 20: Flue System Dimensions
Section 2 - Installation 2.11 FLUE SYSTEM DIMENSIONS 2.12 FITTING THE TURRET 1. Ensure the condensate trap in filled with water Flue Design 2. Ensure the rubber seal is not damaged and fitted IMPORTANT: correctly on the appliance manifold. 1. Flue lengths may vary, always measure flue lengths before cutting. -
Page 21: Cutting The Flue
Section 2 - Installation 2.13 CUTTING THE FLUE 10 mm Adjust to Length = “A” + 44 mm from terminal lip +14 mm CUTTING HORIZONTAL FLUE TERMINAL (non-telescopic) +14 mm Wall Thickness 1. Measure the required cut flue length (A + 44 mm) 2. -
Page 22: Assembling The Vertical Flue
Section 2 - Installation For the full range of A video showing how to correctly SCAN SCAN measure and fit a flue can be FLUE AND ACCESSORIES for Flue Fitting for Flues and found by viewing the QR Code. please visit idealheating.com/ Video’s Accessories Guide flues... -
Page 23: Condensate Drain
Section 2 - Installation 2.15 CONDENSATE DRAIN External Drain Connections The use of an externally run condensate drainage pipe should only be considered after exhausting all internal termination options as described previously. An external system must terminate at a suitable foul water discharge point or purpose designed soakaway. -
Page 24: Condensate Drain - Continued
Section 2 - Installation 2.16 CONDENSATE DRAIN - CONTINUED Figure 1 - Connection of Condensate Drainage Pipe to Figure 2 - Connection of a Condensate Drainage Pipe Downstream of a Sink, Basin, Bath or Shower Water Trap to Internal Soil & Vent Stack Internal Soil Vent Stack Boiler Boiler... -
Page 25: Connections & Filling
Section 2 - Installation 2.17 CONNECTIONS & FILLING PRV DRAIN The PRV connection, located at the bottom left-hand side of the boiler, comprises an open ended grommet. CAUTION: Heating the isolation valves may damage the fibre seals IMPORTANT Remove all boss blanking plugs before connecting the The grommet is designed for 15 mm Ø... -
Page 26: Installer Wiring
Section 2 - Installation 2.19 INSTALLER WIRING All of the connections can now be readily accessed, the WARNING: Ensure the supply cord is not damaged plugs can be removed to aid wiring. 5. Connect the switched live to the terminal block as shown. The boiler must be connected to a permanent live power Note. -
Page 27: Installer Wiring Continued
Section 2 - Installation 2.20 INSTALLER WIRING CONTINUED Logic Max System S BOILER WITH S PLAN SYSTEM (without outside sensor) S PLAN VALVE S PLAN FUSED VALVE SPUR BOILER SL 1 MAINS IN IN OUT CH ON TIMER HW ON HW OFF 2.21 REPLACING PRE-FITTED MAINS CABLE Refer to Section... -
Page 28: Wiring Diagram
Section 2 - Installation 2.23 WIRING DIAGRAM WPS Gnd WPS Signal Installation and Servicing... -
Page 29: Commissioning And Testing
Section 2 - Installation 2.24 COMMISSIONING AND TESTING B. Gas Installation A. Electrical Installation Electrical safety checks should be WARNING: WARNING: Open windows, doors and extinguish carried out by a qualified person. flames before starting the next steps. Do not smoke. 1. -
Page 30: Initial Lighting
Section 2 - Installation 2.25 INITIAL LIGHTING Legend A. Hot Keys B. Central Heating On at 60°C Temperature Knob Target 60°C Menu Mode C. Boiler Status Display D. Burner On indicator E. Pressure Gauge F. CH Flow Isolating Valve G. Gas Cock H. -
Page 31: User Interface Commissioning
When the boiler is powered up for the first time, you will have the options to set the contact details for boiler servicing. Set your contact details for boiler service? (defaults to Ideal Heating contact information otherwise) 2.27 CHANGING BOILER OPERATING MODE The boiler mode is displayed by default, to change the mode, simply press mode and select the desired mode. -
Page 32: Menu Operation
Section 2 - Installation 2.28 MENU OPERATION The menu option contains a list of attributes that informs the user about the operating state of the boiler. The user should scroll down the menu and press enter to select the desired option. Menu Service Contact Name Service Phone Number... -
Page 33: General Checks
Section 2 - Installation 2.30 GENERAL CHECKS Make the following checks for correct operation in: CENTRAL HEATING (CH) MODE TEMPERATURE TEMPERATURE SETTING SETTING 1. Ensure that the CH external controls are calling for heat (No Outside Sensor) (With Outside Sensor) and the DHW external controls are not. -
Page 34: Restart Procedure
Section 2 - Installation 2.31 RESTART PROCEDURE To restart the boiler, press the Restart button (A). Ignition Lockout 1 Check other gas appliances work. Ignition Lockout 2 Restart boiler. 1 Check other gas appliances work. 2 Restart boiler. 3 If fault persists, contact installer. 3 If fault persists, contact installer. -
Page 35: Section 3 - Servicing
Section 3 - Servicing SERVICING SCHEDULE Servicing can only be carried out by Gas Safe Registered Engineers 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 Combustion testing must be carried out by a competent person using a combustion analyser conforming to BS EN 50379-3:2012. -
Page 36: Removal / Replacement Of Components
Section 3 - Servicing REMOVAL / REPLACEMENT OF COMPONENTS WARNING: Do not operate the boiler without a front panel fitted Notes. When replacing any component. 1. In order to assist fault finding, the control panel has an 1. Isolate the electricity supply. LCD diagnostic display. -
Page 37: Boiler Front Panel Removal / Replacement
Section 3 - Servicing 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 4. -
Page 38: Fan And Venturi Assembly Removal And Cleaning
Section 3 - Servicing FAN AND VENTURI ASSEMBLY REMOVAL AND CLEANING 1. Disconnect the electrical leads from the fan. 9. Inspect fan outlet sealing gasket and replace if necessary. 2. Remove the clip from the gas control valve outlet and 10. -
Page 39: Burner Removal And Cleaning
Section 3 - Servicing BURNER REMOVAL AND CLEANING SCAN for video Refer to Section 4. Pull the burner out from the left hand 1. Remove the 2 burner front fixing screws and the side of the boiler once it is in the vertical 2 rear extended nuts. -
Page 40: Ignition / Detection Electrode Replacement / Inspection
Section 3 - Servicing IGNITION / DETECTION ELECTRODE REPLACEMENT / INSPECTION Refer to Section Ignition /Detection Electrode 1. Remove the fan. Refer to Section 2. Remove the flue manifold. 3. Remove the burner. Refer to Section 4. When servicing the boiler inspect the condition of the electrode and check the dimensions shown. -
Page 41: External System Filter Cleaning Guide
Section 3 - Servicing 3.11 EXTERNAL SYSTEM FILTER CLEANING GUIDE Switch off the boiler (isolate electrical supply). Close the inlet/outlet valves. Remove magnet and vent. Remove drain valve cap, open drain valve and vent. Close Vent Open inlet valve slowly and flush out filter until water Vent runs clear. -
Page 42: Spark Generator Replacement
Section 3 - Servicing 3.15 SPARK GENERATOR REPLACEMENT Refer to Section 1. Disconnect the leads from the spark generator. 4. Fit the new spark generator and reassemble, ensuring that the the earth lead is replaced. 2. Gently push up the generator to release the bottom clip from the gas valve mounting bracket. -
Page 43: Pressure Gauge Replacement
Section 3 - Servicing 3.18 PRESSURE GAUGE REPLACEMENT 4. Releasing the two retaining clips on the pressure gauge Refer to Section ease the pressure gauge through the front of the control panel. 1. Drain the boiler. 5. Fit the new pressure gauge from the front of the lower Refer to Section control panel ensuring correct orientation. -
Page 44: Primary Pcb Replacement
Section 3 - Servicing 3.20 PRIMARY PCB REPLACEMENT Program this model? It is critical that the correct boiler size WARNING: System UK and fuel type is entered in to the boiler. 15kW Natural Gas CAUTION: Fit the earth strap provided with the PCB Back to your wrist and secure to a suitable earth on the boiler chassis. -
Page 45: Pump Automatic Air Vent Replacement
Section 3 - Servicing 3.21 PUMP AUTOMATIC AIR VENT REPLACEMENT Refer to Section 5. Reassemble. Ensure the air vent head ‘o’ ring seal is fitted. 6. Ensure the air vent cap is loose. 1. Drain the boiler. 7. Refill the boiler. Check for leaks around the new air vent Refer to Section joint. -
Page 46: Water Pressure Switch Replacement
Section 3 - Servicing 3.23 CH WATER PRESSURE SWITCH REPLACEMENT Refer to Section 1. Drain the boiler. Refer to Section 2. Pull off the two electrical connections. 3. Using a suitable tool, pull out the metal retaining clip. 4. Carefully withdraw the pressure switch. 5. -
Page 47: Expansion Vessel Recharging & Replacement
Section 3 - Servicing 3.25 EXPANSION VESSEL RECHARGING & REPLACEMENT Refer to Section RECHARGING 1. Remove the charge point cover. 2. Recharge the tank pressure to 0.75 bar. 3. Reassemble. 4. Check that the boiler operates. REPLACEMENT 5. Drain the boiler CH circuit. Refer to Section 6. -
Page 48: Heat Engine Replacement
Section 3 - Servicing 3.26 HEAT ENGINE REPLACEMENT 18. Ensure the trap is filled with water. Refer to Section Refer to Section 3.17 CAUTION: Protect the gas and electrical controls with 19. Refill the boiler and check for leaks. a waterproof sheet. Refer to Section 2.15 Refer to Section... -
Page 49: Section 4 - Fault Finding
Section 4 - Fault Finding MAIN MENU, FAULT HELP Fault finding help can be accessed through the menu. Fault finding help lists all the common faults with the necessary checks. More detailed fault checks and actions are described in the following pages. Menu Fault Help Change Service Time... -
Page 50: Ignition Lockout
Section 4 - Fault Finding IGNITION LOCKOUT If the boiler is restarted does the Is the Gas Pressure available at Check gas supply and boiler ignite for a short time and the Boiler Inlet (>18 mbar)? rectify fault then extinguish? Check wiring connection Is approx 24V DC supply available from gas valve to... -
Page 51: Flame Loss
Section 4 - Fault Finding FLAME LOSS Does the boiler ignite for a short Is the Gas Pressure available at Check gas supply and time and then extinguish? the Boiler Inlet (>18 mbar)? rectify fault Check wiring from Is 24V DC supply available at the gas valve to PCB for Gas Valve while the flame is on? Check the electrode and associated... -
Page 52: Flow Thermistor Fault
Section 4 - Fault Finding FLOW THERMISTOR FAULT Securely connect the wiring to the Flow Is the wiring securely connected to the Flow Thermistor Located in the Flow Pipe lower LHS of Boiler Thermistor Disconnect the wiring from the Flow Thermistor Check the resistance using a suitable multimeter connected Fit a new Thermistor across the Thermistor’s terminal pins. -
Page 53: Outside Sensor Fault
Section 4 - Fault Finding 4.10 OUTSIDE SENSOR FAULT Securely connect the wiring at both the Is the wiring securely connected at both the boiler and boiler and Outside Sensor Outside Sensor? Disconnect the wires to the outside sensor. Check the resistance using a suitable multimeter connected across the Outside Sensor’s terminal pins. -
Page 54: No Dhw Operation
Section 4 - Fault Finding 4.12 NO DHW OPERATION Adjust cylinder stat Is the Cylinder Stat calling for heat? Is DHW timer on? Switch timer on Is OFF shown under Tap symbol? Press mode button until OFF is not shown under the Tap symbol Is there 230 V at SL2 IN Check system controls and wiring... -
Page 55: Section 5 - 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 LINK and performance specification that we require. Do not use reconditioned or copy parts that have not been clearly to spares authorised by Ideal. -
Page 56: Section 6 - Benchmark & Commissioning
Section 6 - Benchmark & Commissioning Installation and Servicing... - Page 57 Section 6 - Benchmark to Commissioning Benchmark Commissioning & Warranty Validation Service Record 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 warranty the boiler needs to be registered with the manufacturer within one month of the installation.
- Page 58 Section 6 - Benchmark to Commissioning GAS BOILER SYSTEM COMMISSIONING CHECKLIST & WARRANTY VALIDATION RECORD Address: Boiler make and model: Boiler serial number: Commissioned by (PRINT NAME): Gas Safe registration number: Company name: Telephone number: Company email: Company address: Commissioning date: Heating and hot water system complies with the appropriate Building Regulations? Optional: Building Regulations Notification Number (if applicable): Time, temperature control and boiler interlock provided for central heating and hot water...
- Page 59 Section 6 - Benchmark to Commissioning SERVICE & INTERIM BOILER WORK RECORD It is recommended that your boiler and heating system are regularly serviced and maintained, in line with manufacturers’ instructions, and that the appropriate service / interim work record is completed. Service provider When completing a service record (as below), please ensure you have carried out the service as described in the manufacturers’...
- Page 60 Section 6 - Benchmark to Commissioning 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) separate guidance is provided with the conversion kit supplied and this must be followed.
- Page 61 Section 6 - Benchmark to Commissioning Start Set Boiler to Maximum Gas Rate. Carry Out Flue Integrity Check Using Analyser. Refer to Section In accordance with boiler instructions, set 2.29 on Insert analyser probe into air inlet test point (where boiler to operate at maximum rate (full load page 32 available) and allow readings to stabilise.
- Page 62 At Ideal Heating we take our environmental impact seriously, therefore when installing any Ideal Heating product please make sure to dispose of any previous appliance in an environmentally conscious manner. Households can contact their local authority to find out how.
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