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IDEAL Europa 24 Installation & Servicing

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Summary of Contents for IDEAL Europa 24

  • Page 1 24/28 Your installation & servicing guide installation & servicing...

  • Page 2: Electrical Supply

    GENERAL europa 24 europa 28 Table 1 - General Data Gas supply 2H - G20 - 20mbar / 3P - G31 - 37 mbar Gas Supply Connection 22mm copper Injector size G20 Natural Gas 1.2 mm (13 x) 1.2 mm (15 x)

  • Page 3: Table Of Contents

    GENERAL CONTENTS page no. Natural Gas only G.C. Appliance No. 47-348-20 (europa 24) Air Supply ................7 G.C. Appliance No. 47-348-21 (europa 28) Boiler Clearances ............6 0049AU2867 (europa 24) PI No. 0049AU2949 (europa 28) Boiler Exploded Diagram ........10, 11 Destination Countries: GB, IE Electrical Connections ..........
  • Page 4 Flame sensing Ignition electrode Central heating (CH) output is fully modulating with a range of: electrode 11.1 to 24.3 kW (37,800 to 82,900 Btu/h) for europa 24 Expansion H.L. vessel Termostat 12.6 to 28.0 kW (43,000 to 95,500 Btu/h) for europa 28 C.H.

  • Page 5: Gas Safety Regulations

    Installation and Servicing Instructions or as otherwise recommended by Caradon Ideal Limited in writing. If in doubt Note. It is not permissible to install a mains socket in a bathroom. please enquire.
  • Page 6 GENERAL BOILER DIMENSIONS, SERVICES & CLEARANCES all dimensions in mm (in) Center line of boiler The following minimum clearances must be maintained for operation and servicing. Additional space will be required for installation, depending upon site conditions. (3/4”) Side and Rear Flue Provided that the flue hole is cut accurately, e.g.

  • Page 7: Gas Supply

    GENERAL 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 to The local gas supplier should be consulted, at the installation which people have access then the terminal MUST be planning stage, in order to establish the availability of an protected by a purpose designed guard.

  • Page 8: Inhibitor

    GENERAL WATER CIRCULATION SYSTEM permit the draining of the whole system. They should be at least 1/2" BSP nominal size and be The boilers are designed for connection to pressurised, fully in accordance with BS 2879. pumped, sealed water central heating systems ONLY. The domestic hot water (DHW) calorifier is incorporated within the Maximum recommended system hydraulic losses are given in heat exchanger and only requires connection to the mains...

  • Page 9: Domestic Hot Water

    Pressure gauge, covering a range of 0 to 4 bar. 1.0 bar if the system is to be pre-pressurised. A 5-litre expansion vessel for europa 24 and a 8-litre expansion vessel for europa 28, with an initial charge When installing the filling connection provided with the pressure of 1 bar.

  • Page 10: Combination Boiler - Installation And Servicing

    INSTALLATION SYSTEM BALANCING The boiler does not normally need a bypass but at least some leaving the twin lockshield valves (on the radiators referred radiators on the heating circuit, of load of at least 20% of the to above) in the OPEN position. minimum boiler output, must be provided with twin lockshield Turn up the room thermostat and adjust these lockshield valves so that this minimum heating load is always available.
  • Page 11 INSTALLATION BOILER ASSEMBLY - Exploded View combination boiler - Installation and Servicing...
  • Page 12 INSTALLATION UNPACKING Pack A Contents Also contained in Pack A: The boiler is supplied fully assembled in one Pack A, together ? Hardware Pack (listed below). with a standard flue assembly for lengths up to 720 mm, rear or side flue outlet, in Pack B. ? These Installation &...

  • Page 13: Casing Removal

    INSTALLATION 1 1 CASING REMOVAL 1. Undo the upper front retaining screw (A). 2. Undo the LH and RH side nuts retaining the plastic fascia board (B) and remove. 3. Release the four fixing clamps on the upper and lower positions (2 + 2) (C).
  • Page 14 INSTALLATION 1 3 FLUE ASSEMBLY - Exploded View 1. An optional flue duct extension kit is required for wall thicknesses greater than : Side 580 mm (23 "). Rear 620 mm (24 ") - w/o stand-off kit. 570 mm (22 ") - with stand-off kit.
  • Page 15 INSTALLATION 1 5 PREPARING THE W ALL Rear flue only 5’’ WARNING. Ensure that, during the cutting operation, Side flue diameter masonry falling outside of the building does not cause only 5’’ hole damage or personal injury. diameter hole 1. Cut the flue hole (preferably with a 5" core boring tool), ensuring that the hole is square to the wall.
  • Page 16 INSTALLATION 1 8 MOUNTING THE BOILER Note. All the isolating valves are supplied separately in the Use stand-off kit hardware pack. (To allow pipework to be taken upwards). Fit the boiler either: 1. Assemble the 4 plastic plugs and the screws on the stand-off frame as indicated;...
  • Page 17 INSTALLATION 1 9 CONNECTING THE FLUE TO THE BOILER 1. Insert the flue assembly through the prepared hole in the 5. Flues over 0.72 metre long. wall. Fix the flue support bracket to the wall, using the wall plug 2. Fit the flue turret on the top of the boiler ensuring that the and wood screw.

  • Page 18: Service Connections

    INSTALLATION 2 2 FITTING THE KIT 1. Fit the inner flue extension duct onto the inner flue duct. 2. Fit the outer flue extension duct onto the outer air duct. 3. Using the clamp provided clamp the flue lengths together. 4.

  • Page 19: Water Connections

    INSTALLATION WATER CONNECTIONS CH CONNECTIONS Refer to General Note, Frame 23, for guidance. Note. Do not subject any of the isolating valves to heat as the seals may be damaged. Isolating valve (shown in the open position) 22 mm copper pipe Isolating valve (shown in the open position)

  • Page 20: Gas Connection

    12 l/min (2.6 gpm) for europa 28 2. Close all taps except the one furthest from the boiler. and 10 l/min (2.2 gpm) for europa 24. 3. Turn off the DHW tap. combination boiler -...

  • Page 21: Electrical Connections

    INSTALLATION 2 9 ELECTRICAL CONNECTIONS WARNING. This appliance MUST be earthed. Connection must be made in a way that allows complete isolation of the electrical supply such as a double pole A mains supply of 230 V ~ 50 Hz is required. switch having a 3mm (1/8") contact separation in both poles, serving only the boiler and system controls.
  • Page 22 INSTALLATION 3 1 PICTORIAL WIRING DIAGRAM LEGEND - blue. y/g - yellow/green. bk - black. gr - green. br - brown. or - orange. - red. - violet. - white. gy - grey. Ignition Mains supply electrodes 230 V - 50 Hz valve 132 Vac 47 Vdc...

  • Page 23: Commissioning And Testing

    INSTALLATION 3 2 FUNCTIONAL FLOW WIRING DIAGRAM valve Mains supply 230 V - 50 Hz Room’stat br b bk bk Ignition Overheat thermostat transformer Pump Low switch CH sensor Flow switch bk r DHW sensor 17.26 Reset Air pressure RESET button ENTER switch...

  • Page 24: Initial Lighting

    INSTALLATION 3 4 INITIAL LIGHTING LEGEND Ca p A. Automatic air vent. L. Inlet pressure test point B. Reset button M. Burner pressure test point C. Fault led N. CH flow D. Flame led O. DHW outlet E. CH mode led P .
  • Page 25 INSTALLATION 3 5 INITIAL LIGHTING - continued 8. Slacken the screw in the inlet pressure test point (L) and Maximum pressure connect a gas pressure gauge via a flexible tube. 26.Set the DHW control knob to maximum and fully open a DHW 9.
  • Page 26 35 C at the following flow rate: - 11.5 l/min for europa 28 - 10.0 l/min for europa 24 3. Gas Rate 4. Reduce the DHW draw-off rate to about 3 l/min (0.7 gpm) Check the boiler gas rate when the boiler is at full DHW and check that the boiler modulates to deliver DHW at output.

  • Page 27: Handing Over

    Emphasise that if a fault is indicated, the boiler should be turned off and a registered local heating installer consulted. benefits of the Ideal Care Scheme details of which are outlined in the householder pack supplied with this boiler. 6. Explain and demonstrate the function of time and temperature controls, radiator valves etc., for the economic...

  • Page 28: Servicing Schedule

    SERVICING 3 9 SERVICING SCHEDULE To ensure the continued safe and efficient operation of the 9. Check that the flue terminal is unobstructed and that the appliance it is recommended that it is checked at regular flue system is sealed correctly. Reassemble in the reverse intervals and serviced as necessary.
  • Page 29 SERVICING 4 1 BOILER CASING REMOVAL 1. Undo the upper front retaining screw (A). 2. Undo the LH and RH side nuts and locking nut retaining the plastic fascia board (B), remove and place on one side. 3. Release the four fixing clamps on the upper and lower positions (2 + 2) (C).
  • Page 30 3 screws securing the air guide to the main chassis and remove the air guide (only for 28 kW). Note. Take care not to disturb the expansion vessel flexible pipe. (europa 24) (europa 28) combination boiler - Installation and Servicing...

  • Page 31: Draining The Boiler

    SERVICING 4 4 DRAINING THE BOILER 1. Refer to Frame 49. 2. Remove the casing. Refer to Frame 41. 3. Remove the expansion vessel and shield/air guide. Refer to Frame 43. 4. Close all the water isolating valves on the inlet piping.

  • Page 32: Burner Removal And Cleaning

    7. Re-assemble in the reverse order. 4 7 BURNER REMOVAL AND CLEANING 1. Undo and remove the 2 clips assembling the combustion chamber. (europa 24) 2. Remove the combustion chamber. 3. Disconnect the leads from ignition and ionisation electrodes including the earth lead.

  • Page 33: Cleaning The Heat Exchanger

    SERVICING 4 8 CLEANING THE HEAT EXCHANGER 1. Remove the combustion chamber (Refer Frame 47) and fan assembly (Refer to Frame 45). 2. Disconnect the electrical leads from the overheat thermostat and from low water pressure switch. 3. Unscrews the 3 screws and remove the front panel of the collector hood.
  • Page 34 SERVICING 5 0 C.H. AND D.H.W. SENSOR REPLACEMENT TABLE OF RESISTANCE VALUES AS A FUNCTION 1. Refer to Frame 49. OF THE TEMPERATURE OF THE SENSORS 2. Remove the casing. Refer to Frame 41. 3. Unplug the electrical leads from the sensors. T°C 33242 25633...
  • Page 35 SERVICING 5 2 VENTURI REPLACEMENT 1. Refer to Frame 49. 2. Remove the fan assembly. Refer to Frame 45. 3. Remove the boiler casing. Refer to Frame 41. 4. Disconnect the two silicon pipes from the venturi pipe. 5. Undo the screw fixing the flue outlet and remove it. 6.
  • Page 36 SERVICING 5 4 BURNER REPLACEMENT 1. Refer to Frame 49. 2. Remove the casing. Refer to Frame 41. 3. Remove the expansion vessel and shield/air guide. Refer to Frame 43. 4. Remove the combustion chamber. Refer to Frame 47. 5. Remove the ignition/ionisation electrodes. Refer to Frame 6.
  • Page 37 SERVICING 5 6 IGNITION/FLAME DETECTION ELECTRODES REPLACEMENT 1. Refer to Frame 49. 2. Remove the casing. Refer to Frame 41. 3. Remove the expansion vessel and shield/air guide. Refer to Frame 43. 4. Remove the combustion chamber. Refer to frame 47. 5.
  • Page 38 8. Open the retaining brackets of the combustion chamber Caradon Ideal Limited recommend that, for your own comfort and remove the front and sides insulation boards. The and safety and to comply with good working practice, the replacement boards are supplied in a plastic bag.
  • Page 39 SERVICING 6 0 GAS CONTROL VALVE REPLACEMENT 1. Refer to Frame 49. 2. Remove the casing. Refer to Frame 41. 3. Remove the expansion vessel and shield/air guide. Refer to Frame 43. 4. Unscrew the securing screw and unplug the electrical lead from the gas control valve.
  • Page 40 SERVICING 6 2 MAINS SWITCH REPLACEMENT 1. Refer to Frame 49. 2. Remove the casing. Refer to Frame 41. 3. Remove the securing screw fixing the mains switch. 4. Pull out the mains switch by squeezing the plastic retain clips at the back. 5.
  • Page 41 2. Remove the casing. Refer to Frame 41. 3. Remove the expansion vessel and shield/air guide. Refer to Frame 43. 3. Drain the boiler. Refer to Frame 44. 4. For europa 24: Unscrew the air vent from the CH return assembly and remove it. For europa 28: Pull out the air vent clip from the CH return assembly and pull up the air vent head.
  • Page 42 SERVICING 6 6 PUMP HEAD REPLACEMENT 1. Refer to Frame 49. 2. Remove the casing. Refer to Frame 41. 3. Remove the expansion vessel and shield/air guide. Refer to Frame 43. 4. Drain the boiler. Refer to Frame 44. 5. Disconnect the electrical lead from the pump. 6.
  • Page 43 SERVICING 6 8 LOW W ATER SWITCH REPLACEMENT 1. Refer to Frame 49. 2. Remove the casing. Refer to Frame 41. 3. Drain the boiler. Refer to Frame 44. 4. Disconnect the electrical lead from the low water switch. 5. Unscrew the low water switch nut and remove the switch.
  • Page 44 5. Remove the screws securing the ignition transformer heat shield and remove the assembly 6. Unscrew the screw fixing the ignition transformer to the protection shield and remove it. europa 24 7. Refit the new ignition transformer and re-assemble in reverse order. europa 28...
  • Page 45 FAULT FINDING 7 2 FAULT FINDING ENSURE THE ROOM THERMOSTAT AND PROGRAMMER ARE CALLING FOR HEAT AND THE SELECTOR SWITCH IS SET TO HEATING. ENSURE ALL SERVICES ARE ON AND NO DHW TAPS ARE OPEN IS THERE 230 Vac AT THE BOTTOM IS THE POWER LED RECTIFY EXTERNAL FAULT CONNECTIONS OF THE OFF/ON SWITCH...
  • Page 46 FAULT FINDING WITH THE SYSTEM PRESSURE >1 bar IS THERE CONTINUITY BETWEEN NO AND C REPLACE FAULTY WATER PRESSURE CONTACTS ON THE WATER PRESSURE SWITCH SWITCH IS THERE CONTINUITY BETWEEN THE REPAIR OR REPLACE FAULTY PRESSURE SWITCH CONNECTOR AND THE WIRING PCB CONNECTOR REPLACE FAULTY PCB...
  • Page 47 FAULT FINDING WITH THE FAN RUNNING ARE THE FAN VENTURI IS THERE CONTINUITY AND FLUE CLEAR OF RECTIFY OR DOES THE GAS VALVE OPEN BETWEEN NO & C OBSTRUCTIONS AND THE REPLACE AS CONTACTS ON THE AIR SENSIING PIPES NECESSARY PRESSURE SWITCH UNDAMAGED AND CORRECTLY CONNECTED...
  • Page 48 FAULT FINDING IS THERE >17mbar INLET RECTIFY GAS SUPPLY IS THE BURNER PRESSURE PRESSURE AT THE GAS FAULT CORRECT (DATA TABLE 2) VALVE ADJUST THE BURNER PRESSURE IS THE SYSTEM FULLY ENSURE ALL VALVES VENTED WITH ALL DO THE RADIATORS GET HOT ARE OPEN WITH THE ISOLATOR VALVES FULLY SYSTEM VENTED AND...

  • Page 49: Installation And Servicing

    FAULT FINDING ENSURE THE WATER IS THE WATER FLOW IS THE DHW WATER TEMPERA- PRESSURE IS CONSTANT AT APPROX TURE STABLE CONSTANT AND THE 10 l/min SUPPLY IS STABLE REPLACE THE DHW IS THE VOLTAGE Vdc AT THERMISTOR.IS THE REPLACE FAULTY PCB PLUG A2 BETWEEN PINS 3 WATER TEMPERATURE AND 4 STABLE...

  • Page 50: Short List Of 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 Boilers.
  • Page 51 SHORT LIST OF PARTS 8 7 SHORT PARTS LIST 20 - 28 combination boiler - Installation and Servicing...
  • Page 52 For details of courses please ring: .... 01482 498 432 The code of practice for the installation, commissioning & servicing of central heating systems Ideal Boilers, P.O. Box 103, National Ave, Kingston upon Hull, HU5 4JN. Telephone: 01482 492 251 Fax: 01482 448 858. Registration No. London 322 137.

This manual is also suitable for:

Europa 28

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