IDEAL LOGIC + Combi 24 Installation And Servicing
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IDEAL LOGIC + Combi 24 Installation And Servicing

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INSTALLATION
AND SERVICING
LOGIC + Combi
24, 30, 35
For details of document amendments, refer to page 3
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.
For the very latest copy of literature for specification and maintenance practices visit our
website www.idealboilers.com where you can download the relevant information in PDF format.
January 2014
UIN 204978 A09

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  • Page 1 Do not use reconditioned or copy parts that have not been clearly authorised by Ideal. For the very latest copy of literature for specification and maintenance practices visit our website www.idealboilers.com where you can download the relevant information in PDF format.
  • Page 2 Ideal Logic Combi - Installation and Servicing...
  • Page 3 New updated Commissioning Checklist & Service Record Sheets page 65 & 67 New pages added, Flowchart for CO Level and Combustion Ratio Check on Commissioning a Condensing Boiler. Ideal Stelrad Group reserve the right to vary specification without notice Ideal Logic Combi -...
  • Page 4 Table 1 - general Data Ideal Logic + Combi Gas supply 2H - G20 - 20mbar Gas Supply Connection 15mm copper compression Injector Size (mm) 4.15 4.65 Inlet Connection Domestic Hot Water 15mm copper compression Outlet Connection Domestic Hot Water...
  • Page 5 CONTENTs IDEAL LOGIC + COMBI Air supply ..............9 Natural gas only Benchmark Commissioning Checklist ....64-65 Boiler size g.C. Appliance No. pI No. Boiler Clearances ............10 (Benchmark No.) Boiler Exploded Diagram ........... 13 47-348-65 86 CL 08 Condensate Drain ........

  • Page 6: Safe Handling

    Avoid upper body/top heavy bending. • Always grip with the palm of the hand. • Use designated hand holds. • Keep load as close to the body as possible. • Always use assistance if required. Ideal Logic Combi - Installation and Servicing...

  • Page 7: Gas Safety Regulations

    • RF Mechanical Programmable Room Thermostat (24 hr) kit these Installation and Servicing Instructions or as otherwise recommended by Ideal stelrad group in writing. If in doubt • RF Electronic Programmable Room Thermostat (7 day) kit please enquire. Any direct connection of a control device not approved by Ideal stelrad group could invalidate the certification and the normal appliance warranty.

  • Page 8: Gas Supply

    2. It is important that the position of the terminal allows the free Frame 1. In addition, sufficient space may be required to passage of air across it at all times. allow lifting access to the wall mounting plate. Ideal Logic Combi - Installation and Servicing...

  • Page 9: Air Supply

    It is a universal fitting to allow use of different * Only one reduction down to 25mm is allowable per installation brands of pipework. otherwise BS5440-1 2008 dimensions must be followed. Ideal Logic Combi - Installation and Servicing...
  • Page 10 Bottom clearance after installation can be reduced to 5mm. Gas Inlet This must be obtained with an easily removable panel, to enable the consumer to view the system pressure gauge, and to provide the 100mm clearance required for servicing. Ideal Logic Combi - Installation and Servicing...

  • Page 11: Pump

    1.0 bar if the system is to be pre-pressurised. Guidance on vessel sizing is given in Table above. continued ..Ideal Logic Combi - Installation and Servicing...

  • Page 12: Domestic Hot Water

    The application of any other treatment to this product softened water, however, is not permitted. may render the guarantee of Ideal stelrad group Ideal stelrad group recommend the use of Fernox Quantomat, Invalid. Sentinel Combiguard,Calmag CalPhos I scale reducing devices...
  • Page 13 PCB as a spare, an additional Boiler Chip Card (BCC) MUST also be purchased for your specific boiler range and output. Check boiler serial letter code on data plate to obtain correct BCC. BCC* Ideal Logic Combi - Installation and Servicing...

  • Page 14: Unpacking

    Accessory Pack 1. Screw (x2) 2. Wallplug (x2) 3. Turret Clamp Screw (x1) Flow Valve Pack 1. Pipe CH Flow 2. Washer CH 3. Valve Flow (with gauge) continued ..Ideal Logic Combi - Installation and Servicing...

  • Page 15: Front Panel Removal

    Wall Seal (White) FRONT pANEL REMOVAL 1. Loosen the 2 screws retaining the front panel. 2. Pull the two spring clips downwards to disengage. 3. Pull the front panel forward and upwards to remove. Ideal Logic Combi - Installation and Servicing...

  • Page 16: Safe Handling

    2. Lift the boiler onto the wall mounting plate (refer to the and the mounting bracket is level. Introduction section for safe handling advice), locating it over the two tabs. Example of fixing esp9496 Ideal Logic Combi - Installation and Servicing...
  • Page 17 Horizontal Flue Terminal (1000mm long) B Pack cut 75mm 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. Ideal Logic Combi - Installation and Servicing...

  • Page 18: Installation And Servicing

    Note; Telescopic flue B Pack or attached “D” pack extensions do not need to be cut between minimum and maximum values shown above (except where specified). Horizontal Flue Terminal (600mm long) B Pack flue will require cutting on values below maximum values shown in the table above. Ideal Logic Combi - Installation and Servicing...

  • Page 19: Cutting & Setting The Flue Length

    4. Mark the inner tube 10mm longer than the outer tube around its circumference and cut following the mark to ensure its cut square. 5. Remove all burrs and place a light chamfer on the outer edge to aid assembly. Ideal Logic Combi - Installation and Servicing...

  • Page 20: Installing The Flue

    6. Ensure all sample points are accessible and all sample plugs and caps are fitted. Retaining Clamp Lugs Sample points screw Flue Outlet A - Duct Assembly B - Flue Turret C - Turret Clamp D - Seal Flue Outlet Ideal Logic Combi - Installation and Servicing...

  • Page 21: Fitting The Optional Roof Flue Kit (Flat Or Pitched)

    Flue Seal Collar - Flat Roof elbow UIN 208175 UIN 203132 UIN 152259 UIN 203130 elbow UIN 203131 Flue Flue Seal Collar - Tile Roof duct UIN 152258 support Roof Flue Extension Duct UIN 203129 Flue duct support Ideal Logic Combi - Installation and Servicing...

  • Page 22: Flue Terminal Position

    The equivalent flue length resistance of the elbow kits are: Below eaves or balcony 500 mm elbow kit = 1m Below velux windows 2000mm elbow kit = 0.6m Above or side of velux windows 600mm Ideal Logic Combi - Installation and Servicing...

  • Page 23: Assembling The Roof Flue Kit

    7. Finally ensure the roof flashing plate is correctly sealed to the roof. Ideal Logic Combi - Installation and Servicing...
  • Page 24 Boilers without 75mm sealed condensate trap must be fitted with condensate trap must be fitted with a 75mm trap and visible air break a 75mm trap and visible air break continued ..Ideal Logic Combi - Installation and Servicing...
  • Page 25 75mm trap and visible air break ≥ 500 2 rows of three Ø12mm holes 25mm centres, 50mm from the bottom of the tube, facing away from the house Ideal Logic Combi - Installation and Servicing...

  • Page 26: Connections & Filling

    Drain Note that all isolation handles Valve Black are shown in the open postion. Handle Black Handle Filling Safety Valve Loop Drain Connection 15mm elbow or fittings Safety Valve (not supplied) Drain Pipe Ideal Logic Combi - Installation and Servicing...

  • Page 27: Electrical Connections

    The terminal block cover carries two spare fuses for the main PCB. 6. Connect wires to terminal block, as shown below 7. Re-assemble in reverse order. Spare PCB fuses continued ..Ideal Logic Combi - Installation and Servicing...
  • Page 28 INSTALLATION 27 INTERNAL WIRINg CONT’D Ideal offer 5 kits as follows: (see individual kits for installation instructions) Mechanical Timer (24 hr) Kit - 24 hour mechanical CH timer fits into the control box of the boiler. This can be fitted in conjunction with a room thermostat.

  • Page 29: External Electrical Controls

    Earths are not shown for clarity but must never Room Stat Frost Stat be omitted. Use of General Live for Room Stat Room Optional Stat Frost Stat Mains In Room Stat Frost Stat 3G9503 Ideal Logic Combi - Installation and Servicing...

  • Page 30: Wiring Diagram

    INSTALLATION 30 WIRINg DIAgRAM Ideal Logic Combi - Installation and Servicing...

  • Page 31: Commissioning And Testing

    Benchmark Checklist completed. A flow chart to assist is provided on page 67. ATTENTION ! IT Is A CONDITION OF ThE MANUFACTURERs WARRANTy ThAT ThE BENChMARK COMMIssIONINg ChECKLIsT Is FULLy COMpLETED AND LEFT WITh ThE AppLIANCE Ideal Logic Combi - Installation and Servicing...

  • Page 32: Initial Lighting

    When the burner is established the BLUE ‘Burner On’ neon (F) isolation of the mains electricity supply. will be illuminated, the LCD will display “Central Heating” and “Radiator Temp XX C”. continued..Ideal Logic Combi - Installation and Servicing...
  • Page 33 Mode knob moved to summer position Summer mode Central heating off Hot water on Mode knob moved to winter position Winter mode Central heating on Hot water on Mode knob moved to reset position Reset Ideal Logic Combi - Installation and Servicing...
  • Page 34 To reset boiler, turn the mode control knob (D) to reset position and immediately turn knob back to required setting. The boiler will repeat the ignition sequence if a heat demand is present. Legend A. Pre-heat On/off D. Off/Summer/Winter/Reset Control B. DHW temperature control E. Boiler Status C. CH temperature control F. Burner ‘on’ indicator Ideal Logic Combi - Installation and Servicing...

  • Page 35: General Checks

    DhW Outlet Temp requirement. 6. Balance the system. Refer to Frame 4. 80 (176) 64 (147) 7. Check the condensate drain for leaks and check that it is discharging correctly. 45 (113) 40 (104) Ideal Logic Combi - Installation and Servicing...

  • Page 36: Handing Over

    6. Explain and demonstrate the function of time and temperature controls, radiator valves etc., for the economic use of the system. 7. If a timer is fitted draw attention to the timer Users Instructions and hand them to the householder. Ideal Logic Combi - Installation and Servicing...

  • Page 37: Servicing Schedule

    0.004 AND the integrity of the complete flue system and combustion circuit seals have been verified and the inlet gas pressure (and gas rate) have been verified, then contact Ideal. Ensure all caps and seals 11. Complete the service section in the Benchmark Commissioning are re-fitted after use Checklist.

  • Page 38: Fan And Venturi Assembly Removal And Cleaning

    3. Remove the extended nut on the fan mounting bracket. 4. Lift off fan and venturi assembly. 5. Inspect the injector for blockage or damage. 6. Inspect fan outlet sealing gasket and replace if necessary. Injector Ideal Logic Combi - Installation and Servicing...

  • Page 39: Burner Removal And Cleaning

    1. Pull off the rubber pipe noting the position and flush out any deposits with clean water. 2. Replace the cleaning plug and refill the siphon with water. 3. Replace the rubber pipe connector with the twin wall seal fitted to the condensate siphon. Ideal Logic Combi - Installation and Servicing...

  • Page 40: Cleaning The Heat Exchanger

    9. Turn on the gas supply at the gas service cock. 4. Reconnect the fan electrical leads. 10. Reconnect the electrical supply. 5. Remove the sump cover and refit the lower flue manifold as shown. Ideal Logic Combi - Installation and Servicing...

  • Page 41: Replacement Of Components

    Refit the extended nut. 9. Reassemble the boiler in reverse order, taking care not to overtighten the screw on the fan mounting bracket. 10. Check the operation of the boiler. Refer to Frames 32-36. Ideal Logic Combi - Installation and Servicing...

  • Page 42: Burner Injector Replacement

    7. Fit the new burner, replacing any damaged or deteriorating sealing gasket. 8. Reassemble in reverse order. Refer to Frame 44. 9. Check the operation of the boiler. Refer to Frames 32-36. Ideal Logic Combi - Installation and Servicing...

  • Page 43: Ignition Electrode Replacement

    7. Fit the new ignition electrode, using the new gasket supplied. Check dimensions as shown. 8. Reassemble in reverse order. 9. Check the operation of the boiler. Refer to Frames 32-36. Spark Gap a i g S t r 3.5mm Ideal Logic Combi - Installation and Servicing...

  • Page 44: Flame Detection Electrode Replacement

    4. Fit the new spark generator and re- Spark Generator assemble in reverse order ensuring the two earth leads are correctly replaced. 5. Check operation of the boiler. Refer to Frames 32-36. Ideal Logic Combi - Installation and Servicing...

  • Page 45: Gas Control Valve Replacement

    4. Fit new actuator head and reassemble in reverse order. 6. Check operation of the boiler. Refer to Diverter Valve Actuator Frames 32-36. Retaining Clip Ideal Logic Combi - Installation and Servicing...
  • Page 46 & b will be displayed then “Boiler Type Card Fault - Contact Installer” The correct BCC for this appliance will need to be fitted. 11. Check operation of the boiler. Refer to Frames 32- Ideal Logic Combi - Installation and Servicing...

  • Page 47: User Control Pcb Replacement

    3. Lift off the flow turbine sensor plastic retaining clip. 4. Unplug the electrical connection and transfer to new turbine sensor. 5. Reassemble in reverse order. 6. Check operation of the boiler. Refer to Frames 32-36. Ideal Logic Combi - Installation and Servicing...

  • Page 48: Draining The Boiler

    11. Fit the new safety valve and reassemble in reverse order ensuring the new ‘o’ ring is fitted to the top of the return pipe. 12. Refill boiler. Refer to Frame 24. Check operation of boiler. Refer to Frames 32-36. Ideal Logic Combi - Installation and Servicing...

  • Page 49: Pump Automatic Air Vent Replacement

    6. Fit the new turbine cartridge. 7. Refit the turbine flow sensor 8. Reassemble in reverse order. 9. Refill the boiler. Refer to Frame 24. 10. Check operation of the boiler. Refer to Frames 32-36. Ideal Logic Combi - Installation and Servicing...

  • Page 50: Diverter Valve Internal Cartridge Replacement

    8. Reassemble in reverse order. 9. Refill the boiler. Refer to Frame 24. 10. Check operation of the boiler. Refer to Frames 32-36. Ideal Logic Combi - Installation and Servicing...
  • Page 51 9. Refill the boiler. Refer to Frame 24. 8. Refill the boiler. Refer to Frame 24. 10. Check Operation of the boiler. Refer to Frames 32-36. 9. Check Operation of the boiler. Refer to Frames 32-36. Ideal Logic Combi - Installation and Servicing...

  • Page 52: Heat Engine Renewal

    When replacing the spring clips located on both the flow and return pipe connections, ensure clip is oriented to correctly match connecting pipe diameters. Ideal Logic Combi - Installation and Servicing...

  • Page 53: Expansion Vessel Recharging & Replacement

    5. Reassemble in reverse order. 6. Check operation of the boiler. Refer to Frames 32-36. Note. Ensure that the boiler front panel is correctly sealed, compressing the seal to make an airtight joint. Ideal Logic Combi - Installation and Servicing...

  • Page 54: Fault Finding

    Boiler Chip Card (BCC) MUST also be purchased for your specific boiler range and output. REsET pROCEDURE - To reset boiler, turn mode knob to reset position and immediately turn knob back to required setting. Ideal Logic Combi -...

  • Page 55: Overheat/Ignition Lockout

    In general terms a reading greater than 150V indicates that the correct voltage is supplied to the gas valve. REsET pROCEDURE - To reset boiler, turn mode knob to reset position and immediately turn knob back to required setting. Ideal Logic Combi -...
  • Page 56 * note: due to the wave form of the rectified voltage, the reading will vary depending on the type of meter used to measure the value. In general terms a reading greater than 150V indicates that the correct voltage is supplied to the gas valve. Ideal Logic Combi -...
  • Page 57 2,400 - 2,600 Ohms At 85 expect 1,000 - 1,100 Ohms Is the Thermistor value correct? Is there continuity between the PCB and the Thermistor? Check and replace wiring as necessary Replace PCB Ideal Logic Combi - Installation and Servicing...
  • Page 58 After switching power on and ‘c0’ being shown, Replace PCB reset the boiler. Is ‘c2’ still shown? REsET pROCEDURE - To reset boiler, turn mode knob to reset position and immediately turn knob back to required setting. Ideal Logic Combi - Installation and Servicing...
  • Page 59 Are the Radiator Valves Open? There is no Voltage from the Timer/Room Stat. This Is there 230Vac at (A)? is not boiler fault. Ensure Voltage is supplied to boiler by rectifying external wiring. Replace the Divertor Valve Ideal Logic Combi - Installation and Servicing...
  • Page 60 Is the ribbon cable from the main PCB to the User Connect the ribbon from the main PCB to the User Interface PCB connected securely? Interface PCB securely Replace the Is ribbon cable damaged? User Interface Replace ribbon cable Ideal Logic Combi - Installation and Servicing...

  • Page 61: 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 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

    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

    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 “Service Mode” “Minimum Output” “Move CH Knob to End” and the boiler output will be reduced to minimum. 5. The boiler will remain at minimum rate for 5 minutes before reverting to normal operation. Ideal Logic Combi - Installation and Servicing...
  • Page 67 0.2%? sampling point. Allow readings to stabilise before recording. Turn off appliance and call Ideal Technical Helpline for advice The appliance must not be commissioned until problems are identified CO level less and resolved. If commissioning cannot be fully completed, the appliance than 350ppm AND CO/CO must be disconnected from the gas supply in accordance with GSIUR.
  • Page 68 & servicing of central heating systems FM 59915 Ideal, P.O. Box 103, National Ave, Kingston upon Hull, HU5 4JN. Telephone: 01482 492 251 Fax: 01482 448 858. Registration No. London 322 137. Ideal stelrad group pursues a policy of continuing improvement in the design and performance of its products.

This manual is also suitable for:

Logic + combi 35Logic+ combi 30

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