VOKERA Linea HE Installation & Servicing Instructions Manual
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VOKERA Linea HE Installation & Servicing Instructions Manual

VOKERA Linea HE Installation & Servicing Instructions Manual

High efficiency combi boiler
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Linea HE
High efficiency combi boiler
Installation
& Servicing
Instructions
THESE INSTRUCTIONS
TO BE RETAINED
BY USER
Vokèra is a licensed member of the Benchmark scheme
which aims to improve the standards of installation and
commissioning of domestic hot water systems in the UK.

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  • Page 1 Linea HE High efficiency combi boiler Installation & Servicing Instructions THESE INSTRUCTIONS TO BE RETAINED BY USER Vokèra is a licensed member of the Benchmark scheme which aims to improve the standards of installation and commissioning of domestic hot water systems in the UK.

  • Page 2: Table Of Contents

    Page Wiring diagrams Page 3A.1 Related documents External wiring 3A.2 Location of appliance Typical control applications 3A.3 Gas supply Vokera room thermostat 3A.4 Flue system Other devices 3A.5 Air supply 3A.6 Water circulation Exploded diagrams Page 3A.7 Electrical supply Table 1 3A.8 Showers...
  • Page 3 & DHW of 25 & 30, 30 &35 and 35&35 kW degrees for various horizontal or vertical applications. The respectively. Each appliance – by design – incorporates Linea HE range can also be used with the Vokera twin flue electronic ignition, circulating pump, expansion vessel, system.
  • Page 4 Fig. 1A central heating temperature control ON/OFF/RESET button MODE button INFO button hot water temperature control Symbols description Summer current water pressure Spring outside sensor Autumn current appliance temperature Winter error code central heating temperature bar current mode of operation burner on frost protection on hot water temperature bar...

  • Page 5: Design Principles & Operating Sequence

    ● disabled, TSC function enabled OPTIONAL ACCESSORIES AUTUMN - Heating and DHW functions enabled, The Linea HE is suitable for use with a range of ● optional accessories that enable enhanced opera- DHW pre-heat disabled, SARA function active. tion and/or applications. These include: *Anti-freeze &...

  • Page 6: Technical Data Page

    SECTION 2 TECHNICAL DATA 2.1 Central Heating Linea 28HE Linea 32HE Linea 36HE Heat input (kW) 25.0 30.0 34.6 Maximum heat output @ 60/80 °C (kW) 24.4 29.4 33.7 Maximum heat output @ 30/50 °C (kW) 26.1 31.9 36.7 Minimum heat output @ 60/80 °C (kW) Minimum heat output @ 30/50 °C (kW) Minimum working pressure 0.5 bar...

  • Page 7: Emissions

    2.11 Emissions Linea 28HE Linea 32HE Linea 36HE NOx (max-min) 88,3 - 70,6 mg/kWh 88,3 -61,8 mg/kWh 123,5 - 105,9 mg/kWh CO (max-min) 193,5 - 43 mg/kWh 215 - 21,5 mg/kWh 268,8 - 43 mg/kWh (max-min) 9.0 - 9.30 % 9.0 - 9.0 % 9.0 - 9.0 % CO/CO...

  • Page 8: General Requirements (Uk)

    SECTION 3 GENERAL REQUIREMENTS (UK) This appliance must be installed by a competent lations are given in BS 6798. This appliance is not person in accordance with the Gas Safety (Instal- suitable for external installation. lation & Use) Regulations. GAS SUPPLY RELATED DOCUMENTS The gas meter –...

  • Page 9: Air Supply

    make-up vessel or tank must be fitted with an AIR SUPPLY approved non-return valve and stopcock for isola- The following notes are intended for general guid- tion purposes. The feed pipe should be connected ance only. to the return pipe as close to the boiler as possible. This appliance is a room-sealed, fan-flued boiler, consequently it does not require a permanent air 3.6.8...

  • Page 10: Inhibitors

    3.11 INHIBITORS Vokera recommend that an inhibitor - suitable for use with copper and aluminium heat exchangers - is used to protect the boiler and system from the effects of corrosion and/or electrolytic action. The inhibitor must be administered in strict accordance with the manufacturers instructions*.

  • Page 11: Related Documents

    SECTION 3A GENERAL REQUIREMENTS (EIRE) This appliance must be installed by a competent it is likely to cause a nuisance (see I.S. 813). person in accordance with and defined by, the In cold and/or humid weather, water vapour will Standard Specification (Domestic Gas Installa- condense on leaving the terminal;...

  • Page 12: Electrical Supply

    Buildings’ gives specific advice on this type of installation. 3A.11 INHIBITORS Vokera recommend that an inhibitor - suitable for use with copper and aluminium heat exchangers - is used to protect the boiler and system from the effects of corrosion and/or electrolytic action.

  • Page 13: Installation

    No. 435 (see 4.6). FITTING THE FLUE The top flue outlet permits both horizontal and vertical flue applications to be considered, alterna- tively, the Vokera twin flue system can be utilised if longer flue runs are required. 4.5.1 CONCENTRIC HORIZONTAL FLUE (For concentric vertical flue, see 4.5.2).
  • Page 14 The exterior trim can now be fitted. “X” Fig. 8 4.5.2 CONCENTRIC VERTICAL FLUE The appliance can be used with either the Vokera condensing 60/100mm concentric flue system or the optional 80/125mm concentric flue system. NOTE These instructions relate only to the Vokera condensing 60/100mm concentric flue system.
  • Page 15 4.5.3 TWIN FLUE SYSTEM “X” The Vokera twin flue system enables greater flue 28/32/36 HE = 218 mm distances to be achieved (see 4.4.2) than that of “X” a concentric flue system. It can be used for 12/15/20HE = 202mm...
  • Page 16 4.5.3.1 INSTALLATION OF TWIN ADAPTOR KIT (fig. Mark and drill a 130mm hole for the passage of 10 & 11) the horizontal flue terminal, ensuring that there is a 1° fall back to the boiler (17mm per 1000mm). Insert the exhaust connection manifold (A) onto ●...

  • Page 17: Connecting The Gas & Water

    ing plate from the outside, ensuring that the collar on the flue terminal fits over the flashing. Push-fit the twin flue pipes onto the concentric to twin converter ensuring that the exhaust pipe con- nects to the exhaust connection on the concen- tric to twin converter.

  • Page 18: Electrical Connections

    4.6.3 COLD WATER INLET (fig. 6 & 14) The appliance is supplied with a 15mm combined stopcock and double check-valve, connect a 15mm pipe to the inlet of the stopcock and tighten both nuts. 4.6.4 HOT WATER OUTLET (fig. 6 & 14) The appliance is supplied with a 15mm outlet connection, connect a 15mm pipe to the outlet connection and tighten both nuts.
  • Page 19 4.7.3 CONNECTING THE MAINS (230V) INPUT (see fig. 17) Locate and remove the screw securing the right link wire terminal block cover (230V). Pass the cable through the cable anchorage point. Connect the supply cable wires (LIVE, and NEU- TRAL) to their corresponding terminals on the appliance terminal block.

  • Page 20: Commissioning

    SECTION 5 COMMISSIONING PRE-OPERATION CHECKS GAS SUPPLY INSTALLATION Before attempting the initial lighting of the appli- Inspect the entire installation including the gas ance, the following checks must be carried out: meter, test for soundness and purge. Refer to BS ensure all gas service valves from the meter to ●...

  • Page 21: Setting The Boiler Operating Temperature

    ers. It shall be from a reputable manufacturer and shall be administered in strict accordance with the manufacturers’ instructions and the DWTA code of practice. 5.8.1 INHIBITORS See Section 3 “General Requirements”. SETTING THE BOILER OPERATING TEMPERA- TURE Fig. 23 Fig.

  • Page 22: Final Checks

    ● 11-litre 12-litre 13-litre posting to us using the pre-paid envelope sup- (orange) (blue) (beige) plied online at: vokera.co.uk Spare Fitted Spare ● for UK residents by calling: 0870 607 0281 ● for ROI residents by calling: 1850 221121. ●...

  • Page 23: General

    It is the law that any servicing work is carried out by competent person such as a Vokera engineer, an approved service agent, British Gas, CORGI registered personnel or other suitably qualified personnel.

  • Page 24: Safety Valve

    SAFETY VALVE (fig. 26) 6.10 RETURN THERMISTOR (fig. 1) Carry out component removal procedure as de- Carry out component removal procedure as de- scribed in 6.4. Disconnect the outlet pipe (A) from scribed in 6.4. the safety valve, remove safety valve locking pin Unclip and remove the air chamber front cover.

  • Page 25: Electrode And Condense Sensor

    6.15 BURNER (fig. 32) 6.12.1 INJECTOR (fig. 29) Carry out component removal procedure as de- Carry out component removal procedure as de- scribed in 6.4. scribed in 6.4. Unscrew and remove gas pipe connections (A & Unclip and remove the air chamber front and the E).

  • Page 26: Flow Restrictor

    6.20 VALVE ACTUATOR (fig. 36) Carry out component removal procedure as described in 6.4. Remove the locking pin (F) that secures the actuator (G) to the heating manifold. Disconnect the electrical plug from the actuator. Replace in the reverse order. 6.21 DIVERTOR VALVE ASSEMBLY (fig.

  • Page 27: Expansion Vessel

    6.24.1 EXPANSION VESSEL REMOVAL (with suffi- cient clearance above, fig. 25 & 38) Carry out component removal procedure as de- scribed in 6.4. Disconnect the flue from the appliance. Disconnect the expansion vessel from the flexibleexpansion pipe. Disconnect the flexible expansion pipe from the vessel.

  • Page 28: Checks, Adjustments And Fault Finding

    SECTION 7 CHECKS, ADJUSTMENTS AND FAULT FINDING CHECKING APPLIANCE OPERATION are displayed and the appliance is active for both heating and DHW requests. When carrying out any repairs or servicing to the appliance, the relevant commissioning procedure Active functions: must be undertaken to ensure the continued safe SARA function ●...

  • Page 29: Service Mode & Parameters

    flow temperature sensor. When the fan is sensed position of the DHW temperature selector) as to be operating correctly, the ignition sequence measured at the DHW thermistor. commences. When the set-point has been reached, the appli- Ignition is sensed by the electronic circuitry to ance will begin the modulation phase whereby the ensure flame stability at the burner.
  • Page 30 PLANT PARAMETER UNIT STEP DEF. INSTALLAT. SETTING Gas type 1 (Natural gas) 2 (LPG) Boiler output 30 (30 kW) 10-20 30 (28 HE) 26-30 34 (32 HE) 34 (35 kW) 34-50 34 (36 HE) Building structure Min. 5 (light type 20 (heavy type (adjust only if external sensor is fitted) of construction)

  • Page 31: Adjusting Mode & The Gas Valve

    Gas type and boiler output must be according to (allow time for the analyser to stabilise). the boiler design specification. Vokera has no responsability if the gas type and boiler output are set not according to the appliance specification. 7.4.3...

  • Page 32: Combustion Analysis Test

    7.4.8 GAS VALVE FINAL SETTING - MM 7.8.1 EARTH CONTINUITY TEST Select the MM parameter by turning the DHW Isolate the appliance from the electrical supply, temperature control, the boiler starts at the me- and using a suitable multi-meter carry out a resist- dium power and it is possible to change the power ance test.

  • Page 33: Temporary Fault Codes

    NOTE FAULT CODES 1x Restore the electrical supply to the boiler and turn Fault codes 1x appear when the burner has failed to ignite or the the selector switch to the on position. The boiler flame supervisione system has failed to detect a flame. should now function as described in section 7.2.

  • Page 34: Wiring Diagrams

    VOKERA ROOM THERMOSTAT Connect the Vokera room thermostat to the Fig. 47 appliance as detailed in fig. 45. The Vokera room thermostat can be used as detailed in fig. 46. OTHER DEVICES Contact the controls manufacturer and/or Vokera Fig. 47 details typical devices that are suitable...
  • Page 35 FUNCTIONAL DIAGRAM NOTE. L-N-E CONNECTION MUST NOT BE INTERCHANGED CONTROL SWITCHING OF TIME CLOCK AND ROOM THERMOSTAT RATED IS 230 V.a.c. Fig. 48 Fan transformer Return termoster AE01A-P1 Master board Pump AE01A-P2 Ausiliary board control Supplementary external pump M0T2B Motor control board Fuse 4A F AC0X Display board...
  • Page 36 PLUG or CONNECTION DESIGNATION AE01A-P2 Flow, return, condense sensor AE01A-P2 DHW sensor, DHW flow switch, water pressure sensor AE01A-P2 Underflow system overheat temperature AE01A-P2 RS232 PC interface AE01A-P2 Display board connection AE01A-P2 AE01A-P1 connection AE01A-P2 AE01A-P1 connection AE01A-P2 Unused AE01A-P2 Unused AE01A-P2 CN10...

  • Page 37: Exploded Diagrams

    SECTION 9 EXPLODED DIAGRAMS POS. DESCRIPTION 28 HE 32 HE 36 HE Frame assembly 01005365 01005365 01005365 10023044 10023044 10023044 Cover assembly 10026239 10026239 10026239 Printed Circuit Board 10026240 10026240 10026240 Front cover assembly 10025842 10025842 10025842 Instrumental panel 10029365 10029365 10029365 Case...
  • Page 38 24 (spare) POS. DESCRIPTION 28 HE 32 HE 36 HE Domestic water heat exchanger 1957 1957 0024627 Connection 10024640 10024640 10024640 Non return valve 10025056 10025056 10025056 By-pass casing 10024641 10024641 10024641 By-pass valve 2047 2047 2047 Heating manifold and cartridge 10026508 10026508 10026508...
  • Page 39 POS. DESCRIPTION 28 HE 32 HE 36 HE Expansion vessel 2573 2573 2573 Flexible pipe 10025188 10025188 10025188 Circulation pump 10024957 10024957 10027258 Pump cable 10026338 10026338 10026338 Automatic air vent bottle 10025485 1002548 10025485 Pipe 10026264 10026264 10026264 Pipe 10026267 10026267 10026267...
  • Page 40 POS. DESCRIPTION 28 HE 32 HE 36 HE Air box bottom 10027175 10027175 10027175 Ambidx air box side 10026231 10026231 10026231 10027316 10027316 10027051 Burner assembly 10026548 10026548 10026548 Spark electrode 2192 2192 2192 Detection electrode 10026316 10026316 10026316 Gas pipe 10026318 10026318 10026318...
  • Page 41 POS. DESCRIPTION 28 H 32 HE 36 HE Condensing exchanger assembly 01005366 01005369 01005369 Conveyor assembly 10026310 10026310 10026310 Flue drain connection 10028421 10028421 10028421 Washer 10026323 10026323 10026323 Washer 10026366 10026366 10026366 Washer 10026345 10026345 10026345 Limit thermostat 1002698 10026982 10026982...

  • Page 42: Instructions

    SECTION 10 L.P.G. INSTRUCTIONS 10.1 RELATED DOCUMENTS BS 6798 INSTALLATION OF BOILERS OF RATED INPUT NOT EXCEEDING 60 kW BS 5449 PART 1 FORCED CIRCULATION HOT WATER SYSTEMS BS 5446 INSTALLATION OF GAS HOT WATER SUPPLIES FOR DOMESTIC PURPOSES BS 5440 PART 1 FLUES BS 5482...

  • Page 43: Benchmark

    using a suitable screwdriver, very slowly turn the using the procedure detailed in 9.6.1, check that ● ● minimum adjustment screw (see fig. 43) – clock- the maximum setting correct value is still being wise to increase, counter clockwise to decrease – obtained.

  • Page 44: Service Interval Record

    SERVICE INTERVAL RECORD It is recommended that your heating system is serviced regularly and that you complete the appropriate Service Interval Record Below. Service Provider. Before completing the appropriate Service Interval Record below, please ensure you have carried out the service as described in the boiler manufacturer’s instructions.
  • Page 45 Note...
  • Page 46 Note...
  • Page 48 Registered address: Vokèra Ltd Borderlake House Unit 7 Riverside Industrial Estate London Colney Herts AL2 1HG enquiries@vokera.co.uk www.vokera.co.uk www.vokera.ie Sales, General Enquires T 0844 391 099 F 0844 391 0998 Vokèra Ireland West Court, Callan Co Kilkenny T 056 7755057 F 056 7755060 Vokèra Limited reserve the right to change...

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