IDEAL HE24 Installation And Servicing
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IDEAL HE24 Installation And Servicing

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installation and
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PAKAGED BOILER CONTENTS
HAVE BEEN CHECKED BY OPERATOR No........
ideal esprit
Your Ideal installation and servicing guide
For details of document amendments, refer to page 3
HE24, HE30, HE35
For users guide see reverse of book
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.
September 2008 UIN 203642 A06
For the very latest copy of literature for specification purposes please visit our website
www.idealboilers.com where you will be able to download the relevant information in pdf format.

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  • 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. September 2008 UIN 203642 A06 For the very latest copy of literature for specification purposes please visit our website www.idealboilers.com where you will be able to download the relevant information in pdf format.
  • Page 2 Esprit - Installation and Servicing...
  • Page 3 Page 47, Frame 63 - Combustion Chamber Insulation Replacement • Additional text added to note 6 with reference to Ionisation probes as a serviceable item Ideal Stelrad Group reserve the right to vary specification without notice Esprit - Installation and Servicing...
  • Page 4 GENERAL Table 1 - General Data Esprit HE24 HE30 HE35 Gas supply 2H - G20 - 20mbar Gas Supply Connection Rc 1/2 (1/2” BSP female) Injector Size Stereomatic 5.6mm dia. 5.7mm dia Inlet Connection Domestic Hot Water 15mm copper compression...
  • Page 5 Benchmark Commissioning Checklist ..... 70 Boiler size G.C. Appliance No. PI No. Boiler Clearances ............10 (Benchmark No.) Boiler Exploded Diagram ..........15 HE24 47 348 46 87 BS 051 Condensate Drain ..........11,22,23 HE30 47 348 47 87 BS 051 Electrical Connections ..........

  • Page 6: Safe Handling

    For alternative details refer to supply a nominal DHW draw-off of Powered Vertical Instructions). HE24 9.6 l/min at 35 C temperature rise. High Level Flue Outlet Kits HE30 12 l/min at 35 C temperature rise.

  • Page 7: Location Of Boiler

    An existing cupboard or compartment may be used, provided Any direct connection of a control device not approved by Ideal that it is modified for the purpose. Stelrad Group could invalidate the certification and the normal In both cases, details of essential features of cupboard / appliance warranty.

  • Page 8: Gas Supply

    GENERAL GAS SUPPLY Table 4 - Balanced Flue Terminal Position Flue Terminal Positions Min. Spacing* The local gas supplier should be consulted, at the installation planning stage, in order to establish the availability of an 1. Directly below, above or alongside an opening adequate supply of gas.
  • Page 9 GENERAL BOILER WATER CIRCUIT DIAGRAMS CENTRAL HEATING CIRCUIT Expansion Vessel Burner Automatic Air Vent Heat Exchanger Sump Pressure Divertor Relief Valve Valve Gas Valve Water Pressure Gauge Pump DOMESTIC HOT WATER CIRCUIT Condensate Plate Heat Siphon Exchanger Expansion Vessel Burner Automatic Air Vent Heat...
  • Page 10 SIDE FLUE ONLY Horizontal length of flue Top clearance from centre line of boiler required (MIN.) to outside wall Dim. A WATER AND GAS CONNECTIONS HE24 HE30 HE35 0.5 m 0.5 m 0.5 m 160 mm 1.0 m 1.0 m 1.0 m...

  • Page 11: Electrical Supply

    GENERAL BOILER CONTROL INTERLOCKS ELECTRICAL SUPPLY WARNING. Ideal Stelrad Group recommend that heating systems This appliance must be earthed. utilising full thermostatic radiator valve control of temperature Wiring external to the appliance MUST be in accordance with in individual rooms should also be fitted with a room the current I.E.E.

  • Page 12: Domestic Hot Water

    GENERAL SYSTEM REQUIREMENTS - CH (continued) and Hot Water 5. Filling Where the mains pressure is excessive a pressure reducing Water Flow Rate and Pressure Loss valve must be used to facilitate filling. Max CH Output 23.8 a. Thoroughly flush out the whole system with (Btu/h) (81 200) cold water.

  • Page 13: Water Treatment

    Qantomat, GE Betz Sentinel Combiguard and Calmag CalPhos I scale reducing devices, which must be used in accordance with the manufacturers' instructions. If water treatment is used Ideal Stelrad Group recommend For further information contact: only the use of FERNOX-COPAL or MB1, GE BETZ SENTINEL X100 or Salamander Corrosion Guard inhibitors and associated Fernox Manufacturing Co.
  • Page 14 INSTALLATION BOILER ASSEMBLY - Exploded View Legend Front Casing Panel 31. Spark Generator Front Casing Door 32. Ignition Lead Sump Cover Plate 33. Connection Pipes Flue Sensing Nipple 34. Flow Regulator Return Pipe 35. Pressure Relief Valve Flue Manifold 36. Expansion Vessel Interpanel 37.
  • Page 15 INSTALLATION BOILER ASSEMBLY - Exploded View Esp9176 Esprit - Installation and Servicing...
  • Page 16 INSTALLATION UNPACKING The boiler is supplied fully assembled in one Pack A, together with a telescopic flue assembly for lengths up to 595mm, rear or side flue outlet, in Pack B. Unpack and check the contents. Pack A Contents Boiler Hardware Pack Box (positioned at bottom of boiler) Wall Mounting Bracket...
  • Page 17 (with optional HE35 - 3M (HORIZONTAL FLUE) 169 mm stand-off frame) HE24, 30 & 35 - 7.5M (ROOF FLUE) HE 24, 30 & 35 - 5M PRIMARY AND 17M SECONDARY IS A TYPICAL MAX. FLUE LENGTH. (For alternative details refer to...

  • Page 18: Wall Mounting Template

    INSTALLATION 11 FLUE ASSEMBLY - Exploded View An optional flue duct extension kit is required for wall thicknesses greater than : Side 365mm (14 ") Rear 426mm (15 "). LEGEND 1. Duct assembly. 2. Flue turret. 3. Turret gasket. 4. M5 x 10 pozi screw. esp8822 5.

  • Page 19: Preparing The Wall

    INSTALLATION 13 PREPARING THE WALL IMPORTANT. Ensure that, during the cutting operation, masonry falling outside of the building does not cause damage or personal injury. 1. Cut the flue hole (preferably with a 5" core boring Rear flue only Side flue only tool), ensuring that the hole is square to the wall.
  • Page 20 No. 10 x2" wood screw - 4 off 17 FLUE EXTENSION DUCTS - continued Flue length Use a maximum of 6m extended flue ONLY (HE24 & 30) Use a maximum of 3m extended flue ONLY (HE35) Extension flue General arrangement 1.

  • Page 21: Mounting The Boiler

    INSTALLATION 19 FITTING THE WALL MOUNTING PLATE Screw the wall mounting plate to the wall using 3 wall plugs (previously fitted) with the 3 screws provided. Choose one of the 3 sets of slots in left, right and centre bank. Ensuring that at Example of fixing least one of the screws is fitted into a top slot.

  • Page 22: Condensate Drain

    INSTALLATION 21 CONDENSATE DRAIN Refer also to the British Gas document: 'Guidance Notes for the Installation of Domestic Gas Condensing Boilers' (1989). Ensure that the siphon is full of water before commissioning the boiler . Refer to Frame 24. The routing of the drain must be made to allow a minimum fall of 1 in 20 away from the boiler, throughout its length.
  • Page 23 INSTALLATION 23 CONDENSATE PIPE TERMINATION CONFIGURATIONS . . . continued 3. INTERNAL CONNECTION TO SOIL AND VENT STACK * Make connection to SVP using a solvent welded saddle BOILER esp8882 4. TERMINATION TO SOAK AWAY External wall Termination BOILER to Soak away cla7774 Ground Level minimum...

  • Page 24: Connecting The Flue To The Boiler

    INSTALLATION 24 CONNECTING THE FLUE TO THE BOILER Note. Before fitting the flue turret fill the condensate trap within the boiler by pouring a cupful of water into the flue outlet A. Take care to ensure that the water is only poured into the flue outlet, and does not spill into the boiler casing.

  • Page 25: Fitting The Optional Roof Flue Kit (Flat Or Pitched)

    INSTALLATION 25 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 26: Flue Terminal Position

    INSTALLATION 27 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. Minimum dimensions are shown below 300mm 625mm...
  • Page 27 INSTALLATION 28 FLUE ARRANGEMENT Note. The equivalent flue length resistance of the elbow kits are: elbow kit = 1m elbow kit = 0.6m Esprit - Installation and Servicing...

  • Page 28: Assembling The Roof Flue Kit

    INSTALLATION 29 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, then ensure they are cut equally leaving the inner flue tube longer than the outer air tube as supplied.
  • Page 29 INSTALLATION PRESSURE RELIEF VALVE (PRV) OUTLET - (SAFETY VALVE DRAIN) The PRV outlet is located at the rear RHS of the boiler service connection area. Connection of additional pipewok to the PRV outlet should be made prior to connection of CH, DHW and gas connections for ease of access.

  • Page 30: Electrical Connections

    Note. The domestic hot water flow rate is Refer to Frame 31 and Frame 4 for automatically regulated to a maximum: 1. Fully open all DHW taps and ensure setting pressure. HE24 = 9.6 (2.1 gpm) that water flows freely from them. HE30 = 12.0 (2.6 gpm) Check for water soundness.
  • Page 31 INSTALLATION 34 CONT’D ..ELECTRICAL CONNECTIONS - INSTALLER WIRING Ideal Boilers offer 4 kits as follows: (see individual kits for installation instructions) PROGRAMMER KIT MECHANICAL 24 HOUR- 24 hour mechanical programmer fits into the control box of the boiler. This can be fitted in conjunction with a room thermostat.
  • Page 32 INSTALLATION 35 REPLACING PRE-FITTED MAINS CABLE If it is necessary to use an alternative mains cable to the one 9. Route replacement cable back through the cable gland pre-fitted then use the following guide. and re-tighten to provide cord anchorage. Replacement wiring should comply with notes in Frame 33.
  • Page 33 INSTALLATION 36 PICTORIAL WIRING DIAGRAM LEGEND gy - grey v - violet b - blue or - orange w - white bk - black pk - pink y - yellow - red br - brown y/g - yellow/green Water pressure Dry fire switch thermistor...

  • Page 34: Commissioning And Testing

    INSTALLATION 37 FUNCTIONAL FLOW WIRING DIAGRAM Summer/winter External switch Switch e.g. room’stat Prog. (optional) Water pressure switch Dry fire thermistor DHW Preheat Switch DHW Thermistor Diverter DHW Flow Switch Val ve esp8889 LEGEND b - blue or - orange bk - black pk - pink w - white br - brown...

  • Page 35: Initial Lighting

    INSTALLATION 39 INITIAL LIGHTING LEGEND A. Boiler On/Off switch M. Gas Service Cock B. Winter/Summer Switch N. CH Flow Isolating Valve C. Preheat On/Off Switch P. CH Return Isolating Valve D. CH Temperature Control R. DHW Inlet Isolating Valve E. DHW Temperature Control S.
  • Page 36 INSTALLATION 40 INITIAL LIGHTING - continued 12. DOMESTIC HOT WATER IMPORTANT The gas input to the burner is regulated by the gas valve With the boiler firing, set the DHW temperature control according to the air flow produced by the fan. It is NOT (E) to maximum and fully open a DHW tap.
  • Page 37 INSTALLATION 42 GENERAL CHECKS - continued CENTRAL HEATING (CH) & DOMESTIC HOT WATER (DHW) WATER CIRCULATION SYSTEM MODE. 1. With the system COLD, check that the initial pressure is correct to the system design requirements. 1. Ensure that the CH external controls are calling for heat. For pre-pressurised systems, this should be 1.0 bar.

  • Page 38: Handing Over

    11. As the installer you may wish to undertake the service contract yourself or alternatively offer to the customer the benefits of the Ideal Care Scheme, details of which are outlined in the householder pack supplied with this boiler. Esprit -...

  • Page 39: Servicing Schedule

    SERVICING 44 SERVICING SCHEDULE 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. To ensure the continued safe and efficient operation of the The servicing procedures are covered more fully in Frames appliance it is recommended that it is checked at regular 46-51 and MUST be carried out in sequence.

  • Page 40: Burner Removal And Cleaning

    SERVICING 46 THE CONTROL BOX IN THE SERVICING POSITION 1. Pull the panel forward at the top to disengage the two clips. 2. Carefully swing the control down into its servicing position. esp8854 47 FAN AND VENTURI ASSEMBLY REMOVAL AND CLEANING 1.

  • Page 41: Cleaning The Heat Exchanger

    SERVICING 49 CLEANING THE CONDENSATE TRAP/SIPHON 1. Remove the cleaning plug and allow any residual 2. If necessary pull off the top tube and flush out any condensate / debris to drain. debris. 3. Replace the tube and cleaning plug. 50 CLEANING THE HEAT EXCHANGER 1.

  • Page 42: Replacement Of Components

    SERVICING 52 REPLACEMENT OF COMPONENTS GENERAL IMPORTANT. When work is complete, the front panel, if removed, must be When replacing ANY component correctly refitted - ensuring that a good seal is made. 1. Isolate the electricity supply. Notes. 1. In order to assist fault finding, the control panel has an 2.

  • Page 43: Burner Injector Replacement

    SERVICING 55 BURNER INJECTOR REPLACEMENT 1. Refer to Frame 52. 2. Disconnect the electrical leads from the fan. 3. Undo the gas pipe union connection to the injector housing. 4. Remove the screw retaining the fan mounting bracket. 5. Remove the fan and venturi assembly Injector 6.

  • Page 44: Ignition Electrode Replacement

    SERVICING 57 CONTROL THERMISTOR, RETURN THERMISTOR & OVERHEAT ‘STAT REPLACEMENT (Note. Refer to Frame 39 for locations) 1. Refer to Frame 52. 4. Reconnect the electrical leads to the replacement part and reassemble in reverse order, ensuring that the 2. Unclip the thermistor / thermostat from the flow / return spring clip is securely on the pipe.

  • Page 45: Flame Detection Electrode Replacement

    SERVICING 59 FLAME DETECTION ELECTRODE REPLACEMENT 1. Refer to Frame 52. 5. Fit the new flame detection electrode, using the new gasket supplied. Check dimensions as shown. 2. Unplug the flame detection lead from the electrode. 6. Reassemble in reverse order, and check that no damage 3.

  • Page 46: Gas Control Valve Replacement

    SERVICING 61 GAS CONTROL VALVE REPLACEMENT 1. Refer to Frame 52. 2. Swing the control box down into the servicing position. Refer to Frame 46. 3. Unplug the electrical lead connection from the gas control valve and disconnect the earth wire. 4.

  • Page 47: Combustion Chamber Insulation Replacement

    9. Remove the insulation boards. The replacement boards Ideal Stelrad Group recommend that, for your own comfort are supplied in a plastic bag. This bag should be retained and safety and to comply with good working practice, the and the discarded boards should now be placed into it.
  • Page 48 SERVICING 64 CONDENSATE TRAP/SIPHON REPLACEMENT 1. Refer to Frame 52. 5. Remove the backnut retaining the siphon to the bottom panel. 2. Swing the control box down into the servicing position. Refer to Frame 46. 6. Fit the new siphon in reverse order ensuring the siphon is full of water.
  • Page 49 SERVICING 66 PRIMARY PCB REPLACEMENT 1. Refer to Frame 52. 2. Swing the control box down into the servicing position. Refer to Frame 46. 3. Remove the two screws retaining the control box lid. 4. Unclip the controls box lid and remove. 5.
  • Page 50 SERVICING 68 USER CONTROL PCB Note. Anti static precautions must be observed when handling the user control PCB. 1. Refer to Frame 52. 2. Swing the control box into the servicing position. Refer to Frame 46. 3. Remove the 2 screws retaining the control box lid.
  • Page 51 SERVICING 70 SAFETY RELIEF VALVE REPLACEMENT 1. Refer to Frame 52. 2. Drain the boiler CH circuit. Refer to Frame 3. Unscrew the nut securing the pipe to the pump outlet. 4. Disconnect the electrical connections. 5. Withdraw the pump clip. 6.

  • Page 52: Draining The Boiler

    SERVICING 72 DRAINING THE BOILER 1. Refer to frame 52 2. Close all the water isolating (CH and DHW) valves on the boiler inlet. 3. To drain the central heating circuit: Attach a length of hose to the drain point and open the drain valve.
  • Page 53 SERVICING 74 DHW FLOW SWITCH REPLACEMENT 1. Refer to frame 52. 2. Swing the control box down into the servicing position. Refer to Frame 46. 3. Unplug the electrical connection. 4. Carefully pull the switch upwards to disengage. 5. Fit the new switch and replace the electrical plug connection.
  • Page 54 SERVICING 76 FLOW LIMITER REPLACEMENT 1. Refer to frame 52. 2. Isolate the mains cold water supply to the boiler. 3. Drain the boiler DHW circuit. Refer to Frame 72. 4. Unscrew the three union connections at the DHW isolating valve and remove the valve. 5.

  • Page 55: Pump Head Replacement

    SERVICING 78 DHW PLATE HEAT EXCHANGER REPLACEMENT 1. Refer to Frame 52. 2. Swing the control box down into the servicing position. Refer to Frame 46. 3. Drain the boiler. Refer to Frame 72. 4. Remove divertor valve actuator. Refer to Frame 62.
  • Page 56 SERVICING 80 HEAT ENGINE REPLACEMENT 14. Remove the automatic air vent. Refer to Frame 71. Refer also to Frame 8 - 'Boiler Exploded View'. 15. Undo the M5 x 12 screws securing the bottom flue IMPORTANT manifold casting and remove. Before starting the removal procedure, protect the gas and 16.
  • Page 57 SERVICING 81 EXPANSION VESSEL CHARGING IF REQUIRED THE EXPANSION VESSEL PRESSURE CAN BE RECHARGED BY USING THE CONNECTION ACCESSIBLE THROUGH THE BACK PANEL. The initial charge of the expansion vessel should be 1.0 bar before filling the system. Expansion Vessel Charging Point Esprit - Installation and Servicing...
  • Page 58 SERVICING 82 EXPANSION VESSEL REPLACEMENT - SIDE FLUE APPLICATION SIDE FLUE APPLICATION AND 450MM ACCESS AVAILABLE ABOVE THE BOILER 1. Refer to Frame 52. 2. Swing the control panel down into the servicing position. Refer to Frame 46. 3. Drain the boiler. Refer to Frame 72. 4.

  • Page 59: Fault Finding

    FAULT FINDING 84 FAULT FINDING CHART MAIN MENU In order to assist fault finding the boiler has an LED diagnostic display. The key to the display codes is as follows: ALTERNATING 'L' 'F' GO TO FRAME 85 ALTERNATING 'L' 'E' GO TO FRAME 86 OR 88 GO TO FRAME 87 OR 88 ALTERNATING 'L' 'A'...
  • Page 60 FAULT FINDING 85 L..F..(FLAME DETECTION ERROR) If the boiler reset button is Is gas pressure available at Check gas supply pressed does the boiler ignite for the boiler inlet ? and rectify fault a short time then extinguish? Check gas valve Is 200V DC supply available Check the detection electrode and wiring for...

  • Page 61: Water Pressure Switch

    FAULT FINDING 87 L..A..(OVERHEAT ERROR) Can the overheat condition be reset by pressing Replace overheat thermostat the boiler reset button when the system is cold ? Is the boiler and CH system filled with Fill and vent the system and open all water and all isolation valves open ? isolation valves YES (also refer to Frame 88)
  • Page 62 FAULT FINDING 90 H..1..(CONTROL THERMISTOR [FLOW] ERROR) Remove the boiler control thermistor from the CH flow pipe and disconnect thermistor wires. Check resistance using a suitable multimeter connected across the thermistor’s terminal pins At 25 expect 9,700 - 10,300 Ohms At 60 expect...
  • Page 63 FAULT FINDING H9/L9 (HEAT EXCHANGER OVERHEAT) 93 H..4..(DRY FIRE THERMISTOR ERROR) Is the system filled and vented and all isolation valves open ? Can the fault condition be reset by switching off Is the pump operating correctly? the mains supply to the boiler ? Ensure flow through system.

  • Page 64: 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 65: Short List

    SHORT LIST OF PARTS 96 SHORT LIST 27 & 28 esp9182 Esprit - Installation and Servicing...

  • Page 66: Burner Assembly

    SHORT LIST OF PARTS 97 CONTROLS ASSEMBLY 25. User Control PCB 26. PCB Primary Control 27. Mains Switch 28. Pre-heat and Winter/Summer Switch 38. Pressure Gauge 65. Control Box Lid Esp8894 66. Mains Cover 67. Controls Cover 68. Potentiometer Knob 69.
  • Page 67 NOTES Esprit - Installation and Servicing...
  • Page 68 NOTES Esprit - Installation and Servicing...

  • Page 69: Installer Notification Guidelines

    INSTALLER NOTIFICATION GUIDELINES IT IS A REQUIREMENT OF CORGI MEMBERSHIP TO REGISTER EVERY GAS APPLIANCE In addition a change to Building Regulations (England and Wales) requires the installer to notify when installing a heating appliance, as from 1st April 2005. Install and commission this appliance to manufacturers' instructions...
  • Page 72 CERTIFIED PRODUCT Manufactured under a BS EN ISO 9001: 2000 Quality System accepted by BSI 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.

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