Alpha InTec2 26CE Installation And Servicing Instructions
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Alpha InTec2 26CE Installation And Servicing Instructions

Wall mounted, fan assisted, room sealed, gas fired, high efficiency condensing combination boiler
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Installation and Servicing

InTec² 26CE, 30CE and 35CE
Wall Mounted, Fan Assisted, Room Sealed,
Gas Fired, High Efficiency Condensing Combination Boiler
0051
These instructions have been carefully prepared but we reserve the right
to alter the specification at any time in the interest of product improvement.
© Alpha Therm Limited 2015.
Instructions
For Technical help or for Service call ...
ALPHA HELPLINE Tel: 0844 871 8764
website: www.alpha-innovation.co.uk
Nepicar House, London Road,
Wrotham Heath, Sevenoaks,
Kent TN15 7RS
Alpha InTec² 26CE
Alpha InTec² 30CE
Alpha InTec² 35CE
Set for use with Natural Gas
Leave these instructions with the User
G.C. No. 47 532 66
G.C. No. 47 532 67
G.C. No. 47 532 68
Part No. 1.035665 ST.001836/000
0415/D346

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  • Page 1: Installation And Servicing

    InTec² 26CE, 30CE and 35CE Wall Mounted, Fan Assisted, Room Sealed, Gas Fired, High Efficiency Condensing Combination Boiler For Technical help or for Service call ... ALPHA HELPLINE Tel: 0844 871 8764 website: www.alpha-innovation.co.uk Nepicar House, London Road, Wrotham Heath, Sevenoaks, Kent TN15 7RS Alpha InTec²...
  • Page 2 Benchmark Service Interval Record and left with the householder. www.centralheating.co.uk Useful contact details: Gas Safe Register - 0800 408 5577 - www.gassaferegister.co.uk Alpha Heating Innovation: General Sales Enquiries - 0844 871 8760 Technical Helpline - 0844 871 8764 Alpha InTec² 26E, 30CE and 35CE - Benchmark Scheme...

  • Page 3: Table Of Contents

    2. It is the law that all domestic boiler installations are registered by the installer through the Gas Safe Notification Scheme. 3. The boiler must only be used with Alpha CD condensing flue components. Propane Gas (LPG) - In addition to the regulations and requirements stated, the boiler must be installed in accordance with BS 5482:1 - The Installation of Propane Burning Appliances in Permanent Dwellings.

  • Page 4: Technical Data

    DHW output % (±1%) 10.2 10.2 10.5 at minimum output % (±1%) 10.0 at medium output (ignition) % (±1%) 10.7 10.7 Note: OtherTechnical data is the same as NG data. Alpha InTec² 26E, 30CE and 35CE - Technical Data...

  • Page 5: Technical Data

    If necessary, the by-pass can be adjusted to the system requirements from minimum (by-pass closed) to maximum (by-pass open). Adjust using a flat head screwdriver, turn clockwise to open the by-pass, and anticlockwise to close. Alpha InTec² 26E, 30CE and 35CE - Technical Data...
  • Page 6 Speed 9 Speed 5 1000 1200 1400 1600 Flow rate (l/h) C + D = Pump power consumption with by-pass opened. D = Pump power consumption with by-pass closed. Fig. 2.2 Alpha InTec² 26E, 30CE and 35CE - Technical Data...

  • Page 7: Electrical Connections

    ELECTRICAL CONNECTIONS Note: This Appliance Must Be Earthed Optional integral single channel controls are available if required. Note: Only use the Alpha single channel controls. Do not fit any two channel controls. Programmer clock (optional) X1 on PCB X4 and X9 on PCB...

  • Page 8: Boiler Schematic

    25 - Safety valve indicator 8 - Primary heat exchanger 17 - Overheat thermostat 26 - Safety valve 9 - Air/gas mixer 18 - Return thermostat 27 - Safety valve indicator Fig. 2.4 Alpha InTec² 26E, 30CE and 35CE - Technical Data...

  • Page 9: General Boiler Information

    3. Under no circumstances must the flue length (including allowances for extra bends) exceed 12 metres horizontally and only 14 metres vertically. 4. Failure to use Alpha flue components with the boiler will invalidate the boilers CE approval, guarantee and may be unsafe.

  • Page 10: General Boiler Information

    Fig. 3.1 VERTICAL FLUE OPTIONS Not less than 300 mm Not less than 300 mm Hmax = 14 m Hmax = 12.2 m (14 m - 1.8 m) Fig. 3.2 Alpha InTec² 26E, 30CE and 35CE - General Boiler Information...
  • Page 11 However, If the terminal is fitted less than 2 m above a surface where there is no public access, the terminal must be protected by a terminal guard. A suitable guard is available from Alpha Therm Ltd. Alpha InTec² 26E, 30CE and 35CE - General Boiler Information...

  • Page 12: Boiler Location

    The boiler may be installed in a cupboard or compartment, provided it is correctly designed for that purpose, i.e. complies with the Building Regulations and the requirements of BS 6798. Alpha InTec² 26E, 30CE and 35CE - General Boiler Information...
  • Page 13 Drain valves (to BS 2879) must be fitted in the heating system to allow the system to be fully drained. Filling control valves Sliding temporary connection Fig. 3.6 Alpha InTec² 26E, 30CE and 35CE - General Boiler Information...
  • Page 14 FLUSHING THE HEATING SYSTEM It is essential that the central heating system is thoroughly cleaned and flushed when fitting an Alpha boiler. Failure to do so will invalidate the warranty. The primary condensing heat exchanger is constructed in aluminium and therefore is compatible with most materials used in a heating system.
  • Page 15 Before the mains water supply pipe is connected to the boiler, it should be thoroughly flushed out to avoid the danger of dirt or foreign matter entering the boiler. Alpha InTec² 26E, 30CE and 35CE - General Boiler Information...

  • Page 16: Installation

    Condensate discharge pipe Literature pack and Wall template A suitable Alpha flue system must be selected to use with the boiler. Notes: a. All flues must be suitable for Alpha condensing boilers. b. CD 750 mm and 1000 mm flue extensions are available, if required.
  • Page 17 B - DHW outlet elbow (15 mm) C - Cold water inlet - Black (15 mm) D - Heating return - (22 mm) E - Heating flow - (22 mm) Bottom cover plate Fig. 4.4 Alpha InTec² 26E, 30CE and 35CE - Installation...
  • Page 18 FIT THE FLUE - Figs. 4.5 and 4.6 The following procedure applies to fitting an Alpha CD Easy-Flue to both rear or side exit flue - horizontally only. The CD Easy-Flues are suitable for use in the flue length ranges shown in the tables below.
  • Page 19 Note: Ensure that all cuts are square and free from burrs. Once assembled with the components pushed home, the flue is fully sealed. Allow 20 mm 30 mm Do not cut past this point Fig. 4.10 Alpha InTec² 26E, 30CE and 35CE - Installation...
  • Page 20 Use the template (supplied with the boiler) to mark the required flue position, ensure the slope towards the boiler is correct. Determine the overall flue length as described in Section 4.6, paragraph 2 to determine the number of Alpha CD 750 or 1000 mm flue extensions required.
  • Page 21 Plume Management 45° bend 60 mm dia. (each 45° bend equivalent to 0.9 m flue length) Plume Management 1000 mm extension 60 mm dia. (equivalent to 1 m flue length) 60 mm dia. wall bracket Fig. 4.12 Alpha InTec² 26E, 30CE and 35CE - Installation...
  • Page 22 Note: The equivalent horizontal flue assembly length + the equivalent plume management length (PM length) must not exceed the maximum flue length stated for each boiler, i.e. Alpha InTec² boiler maximum equivalent flue length must not exceed 12 metres. Alpha InTec² 26E, 30CE and 35CE - Installation...
  • Page 23 With enhanced boiler control, the unit further increases boiler and system efficiency. Alternatively standard programmable room thermostats or mechanical and digital boiler clocks are available. Note: Only use a Climatic or suitable single channel Alpha controller. Do not fit a two channel controller. Connecting Controls Remove the control panel cover as described in Section 4.10, if it has not already been removed.
  • Page 24 External Sensor – Weather compensation feature The Alpha InTec² boilers have a built in weather compensation feature which is automatically activated when the external sensor is fitted – Part No 3.022383. When fitted the weather compensation sensor allows the boiler to control the maximum primary flow temperature to the heating circuit according to the outside temperature, heating the property more effectively and efficiently.

  • Page 25: Commissioning

    20 Boost function active (optional) selector switch 14 Temperature indicator, boiler info and 21 Optional boiler controls (if fitted) Heating system pressure gauge error codes DHW mode active 15 Boiler in Stand-by mode Fig. 5.1 Alpha InTec² 26E, 30CE and 35CE - Commissioning...
  • Page 26 E72 shown on the display. The air flow check function will operate for 15 minutes, alternatively disconnect the boiler electrical supply or press the standby button for 8 seconds to exit the function early. Alpha InTec² 26E, 30CE and 35CE - Commissioning...
  • Page 27 If the boiler is set for hot water only - The burner is turned off, the fan will continue to run for 30 seconds and the pump will stop immediately. In both modes the fan modulates according to the output required. Alpha InTec² 26E, 30CE and 35CE - Commissioning...
  • Page 28 Thoroughly flush out the water pipework (refer to Section 3.9). Clean the mains water inlet filter (see Fig. 4.4). Refill and re-pressurise the system as described in Section 5.1. Add the correct level of inhibitor to the system as detailed in the instructions supplied with the inhibitor. Alpha InTec² 26E, 30CE and 35CE - Commissioning...
  • Page 29 Overheat sensor reading °C Pump speed (0 = OFF, 1,2,3,4,5,6,7,8,9) Speed level Domestic hot water flow rate l/min Pump flow rate l/h/100 Fan speed during current operation rpm/100 Flue sensor reading °C Alpha InTec² 26E, 30CE and 35CE - Commissioning...
  • Page 30 Caution: In this mode the only active temperature control is the flow sensor that limits the maximum temperature leaving the boiler to 90 °C, therefore be careful when running a hot tap. Alpha InTec² 26E, 30CE and 35CE - Commissioning...
  • Page 31 Defines the boiler as InTec 30CE Defines the boiler as InTec² 36CE Note: Only use the parameter relating to the boiler installed. When changed 'E62' will be displayed and full calibration is required. Alpha InTec² 26E, 30CE and 35CE - Commissioning...
  • Page 32 If required, it is possible to increase or decrease the hot water -9 +9 rate correction output and adjust the DHW flow in Automatic mode. Positive values increase the flow. Negative values decrease the flow Alpha InTec² 26E, 30CE and 35CE - Commissioning...
  • Page 33 1 = 4.5 - 9.0 m 2 = > 9.0 m In the event of an alteration, anomaly 'E72' will be displayed and fast calibration is required. See Section 5.13 Not used on this bolier model Alpha InTec² 26E, 30CE and 35CE - Commissioning...

  • Page 34: Routine Servicing

    Run the boiler and check the operation of its controls. Ensure that all system connections and fittings are sound. Remake any joints and check the tightness of any fittings that may be leaking. Alpha InTec² 26E, 30CE and 35CE - Routine Servicing...
  • Page 35 Loosen the two screws 'D'. Pull the front panel 'E' slightly towards you. Release front 'E' from pins 'F' pulling it towards you while pushing it upwards at the same time. Fig. 6.2 Alpha InTec² 26E, 30CE and 35CE - Routine Servicing...
  • Page 36 Fig. 6.3 the rear panel (view 'A' in Fig. 6.4) Lower the panel out and away from the top cover. View A Fig. 6.4 Alpha InTec² 26E, 30CE and 35CE - Routine Servicing...
  • Page 37 If it is necessary to replace the electrode ensure a new gasket is used and connect the lead to the PCB through the grommet in the rear of the control panel. Alpha InTec² 26E, 30CE and 35CE - Routine Servicing...
  • Page 38 12. Carry out a full calibration procedure (refer to Section 5.13) if the burner and electrode have been cleaned or replaced. 13. Check the operation of the boiler. (Refer to Sections 5.5 and 5.6). 14. Return all controls to their original settings. Alpha InTec² 26E, 30CE and 35CE - Routine Servicing...

  • Page 39: Component Replacement

    To ensure correct and safe operation of the appliance, it is essential that any worn or failed components are replaced with only genuine Alpha spare parts. Use of non-genuine Alpha spares could invalidate your warranty and may pose a potential safety hazard.

  • Page 40: Component Replacement

    Pressure gauge Gain access to the PCB as described in Section 7.8. Lift out and remove the fuse. Fit a 3.15 AF fuse as a replacement. Re-assemble in reverse order. Fig. 7.2 Alpha InTec² 26E, 30CE and 35CE - Component Replacement...
  • Page 41 Remove the condensate trap assembly as described in Section 7.11. Disconnect the wires from the sensor. Withdraw the retaining clip and remove the inlet sensor. Re-assemble in reverse order with a new sensor. Alpha InTec² 26E, 30CE and 35CE - Component Replacement...
  • Page 42 Check the condition of all other seals before reassembling. 15. Check again the air flow through the heat exchanger as described in Section 5.4, recording the new pressure value and complete the service record at the back of these instructions, Alpha InTec² 25XE and 28XE - Component Replacement...
  • Page 43 Remove and replace the seals in the back of the hydro block housing. Replace in reverse order making sure that the printed writing on the heat exchanger is at the top. Alpha InTec² 25XE and 28XE - Component Replacement...
  • Page 44 Remove the bottom fixing screw and withdraw the vessel taking care not to spill any water into other boiler components. Re-assemble in reverse order. Refill and pressurise the system. (Refer to Commissioning, Section 5.1). 7.25 ALPHA CONTROLS (if fitted) Refer to section 4.11 on the connection options for boiler controls. Alpha InTec² 26E, 30CE and 35CE - Component Replacement...

  • Page 45: Wiring Diagram

    Climatic Control to connect 220 V (optional) (optional) room thermostat When an Alpha Climatic control is connected to terminals 41 and 44 remove the links between terminal blocks 1 and 2 Colour Code Component identification Bk ..Black A19 ..Removable memory Bl ..Blue...

  • Page 46: Wiring Diagram

    Climatic Control to connect 220 V (optional) (optional) room thermostat When an Alpha Climatic control is connected to terminals 41 and 44 remove the links between terminal blocks 1 and 2 Colour Code Component identification Bk ..Black A19 ..Removable memory Bl ..Blue...

  • Page 47: Error Codes And Fault Finding

    Where an error code is displayed use the following tables to identify the fault and possible causes. ERROR CODES AND FAULT FINDING If any fault or anomaly persists, contact Alpha Heating Innovation Technical Helpline. The history of errors can be viewed in the 'INFO' menu - d9...

  • Page 48: Error Codes And Fault Finding

    Check the inlet gas pressure is correct and carry out a full calibration process as described in Section 5.13 If the fault persists replace gas valve Alpha InTec² 26E, 30CE and 35CE - Error Codes and Fault Finding...
  • Page 49 Reading out of range Sensor or parameter setting out of range Check the flow and DHW sensor resistance is within range Check the parameters are correctly set for boiler model Alpha InTec² 26E, 30CE and 35CE - Error Codes and Fault Finding...

  • Page 50: Short Parts List

    Clip - Gas pipe connections 1.020393 Boiler wall bracket 2.015350 Boiler connection kit 3.025142 Boiler accessory box complete 3.025141 Wall template 1.035155 Flow meter and regulator assembly 3.023181 Cold mains inlet sensor 1.022949 Alpha InTec² 26E, 30CE and 35CE - Short Parts List...

  • Page 51: Energy Classification

    Contact details Alpha Therm Ltd., Nepicar House, Wrotham Heath, Kent. TN15 7RS (*) High temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet. (**) Low temperature means for condensing boilers 30°C, for low-temperature boilers 37°C and for other heaters 50°C return temperature.
  • Page 52 Contact details Alpha Therm Ltd., Nepicar House, Wrotham Heath, Kent. TN15 7RS (*) High temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet. (**) Low temperature means for condensing boilers 30°C, for low-temperature boilers 37°C and for other heaters 50°C return temperature.
  • Page 53 (AEC) Yearly fuel consumption for the domestic 17 GJ hot water function (AFC) Seasonal room heating yield (ηs) 92 % Domestic hot water production yield (ηwh) 85 % Alpha InTec² 26E, 30CE and 35CE - Energy Classification...
  • Page 54 Alpha InTec² 26E, 30CE and 35CE - Energy Classification...
  • Page 55 * To be established by means of table 5 of Regulation 811/2013 in case of “assembly” including a heat pump to integrate the boiler. In this case the boiler must be considered as the main appliance of the assembly. Alpha InTec² 26E, 30CE and 35CE - Energy Classification...
  • Page 56 Parameter InTec² 26CE InTec² 30CE InTec² 35CE ‘I’ ‘II’ ‘III’ * To be determined according to Regulation 811/2014 and transient calculation methods as per Notice of the European Community no. 207/2014. Alpha InTec² 26E, 30CE and 35CE - Energy Classification...
  • Page 57 Alpha InTec² 26E, 30CE and 35CE - Energy Classification...

  • Page 58: Benchmark 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. Failure to install and commission according to the manufacturer’s instructions and complete this Benchmark Commissioning Checklist will invalidate the warranty.

  • Page 59: 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 Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. Always use the manufacturer’s specifed spare part when replacing controls.

This manual is also suitable for:

Intec2 35ceIntec2 30ce

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