Riello Vokera Vision C User Instructions
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Riello Vokera Vision C User Instructions

High efficiency combi boiler
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Vision C
High efficiency combi boiler
Users Instructions
Installation &
Servicing
Instructions
Vision 25 C G.C. N° 47-364-10
Vision 30 C G.C. N° 47-364-11
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 Vision C High efficiency combi boiler Users Instructions Installation & Servicing Instructions Vision 25 C G.C. N° 47-364-10 Vision 30 C G.C. N° 47-364-11 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 1. THINGS YOU SHOULD KNOW ........... 1 3A.10 INHIBITORS ................. 14 3A.11 SHOWERS ................14 GAS APPLIANCES ..............1 3A.12 DECLARATION OF CONFORMITY ........14 ELECTRICAL SUPPLY ............1 GUARANTEE REGISTRATION CARD ........1 SECTION 4 - INSTALLATION ............15 APPLIANCE COMMISSIONING CHECKLIST (UK only) ..

  • Page 3: Things You Should Know

    USERS INSTRUCTIONS INTRODUCTION Dear Customer Your Vokèra Vision boiler has been designed to meet and exceed the very latest standards in gas central heating technology, and if cared for, will give years of reliable use and efficiency. Please therefore take some time to read these instructions carefully. Do’s and Don’t’s - Do ensure that the system pressure is periodically checked - Do ensure that the boiler should not be used by children or unassisted disabled people...

  • Page 4: Pressure Gauge

    Fig. 1 DIGITAL WEEKLY CLOCK AND BOILER STATUS DISPLAY HOT WATER TEMPERATURE CLOCK SETTING SELECTOR PRESSURE GAUGE BUTTONS ON OFF MODE SELECTOR SWITCH HEATING TEMPERATURE SELECTOR HOT WATER TEMPERATURE SELECTOR Move the selector clockwise to increase the hot water outlet temperature, or counter-clockwise to reduce the temperature PRESSURE GAUGE Ensure the system pressure is set correctly (minimum 0.5-bar) MODE SELECTOR SWITCH/HEATING TEMPERATURE SELECTOR...

  • Page 5: Built-In Clock

    DIGITAL WEEKLY CLOCK Fig. 2 ON OFF Symbol/Icon Description/Function Button/Icon Main Function Secondary Function Used to show current day of week Used to set/adjust (flashing) time of day, and day of week Displayed when the ADVANCE-ON fun- ction is active Use to “advance”...
  • Page 6 1.11 MODES OF OPERATION NOTE If you want to duplicate the new settings for subsequent days, The built-in digital clock has the following modes of operation: e.g. same heating pattern for Monday to Friday, press and ON / OFF – where the clock uses the programmed heating pattern (default or user defined) to switch the hea- hold the program button for 3-seconds each time the ap-...

  • Page 7: Getting Started

    2. GETTING STARTED 2.1 BEFORE SWITCHING ON Before switching the appliance on, please familiarise yourself appliance reaches the CH set temperature, the burner will go off for a minimum period of approximately 3 minutes. with: - how to isolate the appliance from the gas, water, and electricity When the programmer/time clock or external thermostats heating request has been satisfied, the appliance will switch supplies;...
  • Page 8 IMPORTANT 3.6 HOW TO CARE FOR THE APPLIANCE If the appliance requires to be reset frequently, it may be indica- To clean the outer casing use only a clean damp cloth. Do not tive of a fault, please contact your installer or Vokèra Customer use any scourers or abrasive cleaners.

  • Page 9: Installation And Servicing Instructions

    INSTALLATION AND SERVICING INSTRUCTIONS INTRODUCTION When the product reaches the end of its life it should not be All installers are asked to follow the Benchmark Scheme by disposed of as solid urban waste but should be brought to a adhering to the Code of Practise, which can be obtained from separated waste collection facility.

  • Page 10: Section 1 - Design Principles And Operating Sequence

    SECTION 1 - DESIGN PRINCIPLES AND OPERATING SEQUENCE 1.1 PRINCIPLE COMPONENTS 1.5 SAFETY DEVICES • A fully integrated electronic control board featuring electronic When the appliance is in use, safe operation is ensured by: temperature control, anti-cycle control, pump over-run, self- •...

  • Page 11: Section 2 - Technical Data

    SECTION 2 - TECHNICAL DATA 2.1 Central Heating Vision 25C Vision 30C Heat input (kW) 20.00 25.00 Maximum heat output (kW) 60/80°C 19.50 24.45 Minimum heat output (kW) 60/80°C 4.91 5.90 Maximum heat output (kW) 30/50°C 20.84 26.23 Minimum heat output (kW) 30/50°C 5.36 6.40 Minimum working pressure...
  • Page 12 Vision 25C Seasonal space heating energy efficiency class Water heating energy efficiency class Parameter Symbol Value Unit Parameter Symbol Value Unit Seasonal space heating ηs Rated heat output Prated energy efficiency For boiler space heaters and boiler combination For boiler space heaters and boiler combination heaters: useful efficiency heaters: useful heat output At rated heat output and high-...
  • Page 13 2.13 PUMP DUTY Fig. 6 shows the flow-rate available – after allowing for pressure loss through the appliance – for system requirements. When using this graph, apply only the pressure loss of the system. 1000 1100 Flow rate (l/h) Fig. 6 Fig.

  • Page 14: Section 3 - General Requirements (Uk)

    SECTION 3 - GENERAL REQUIREMENTS (UK) This appliance must be installed by a competent person in ac- BS 5440 Part 1, when the terminal is 0.5 metres (or less) below cordance with the Gas Safety (Installation & Use) Regulations. plastic guttering or 1 metre (or less) below painted eaves. 3.1 RELATED DOCUMENTS 3.5 AIR SUPPLY The installation of this boiler must be in accordance with the...
  • Page 15 3.6.8 FREQUENT FILLING 3.11 SHOWERS Frequent filling or venting of the system may be indicative If the appliance is intended for use with a shower, the shower of a leak. Care should be taken during the installation of the must be thermostatically controlled and be suitable for use with appliance to ensure all aspects of the system are capable of a combination boiler.
  • Page 16 3A.7 ELECTRICAL SUPPLY the terminal must be protected by a guard of durable material. The guard must be fitted centrally over the terminal. Refer to The appliance is supplied for operation on 230V @ 50Hz electri- I.S. 813, when the terminal is 0.5 metres (or less) below plastic cal supply;...

  • Page 17: Section 4 - Installation

    SECTION 4 - INSTALLATION 4.5.1 CONCENTRIC HORIZONTAL FLUE 4.1 DELIVERY Reduction for additional bends Due to the weight of the appliance it may be necessary for Reduction in maximum flue length for each bend Bend two people to lift and attach the appliance to its mounting. The 45º...
  • Page 18 located properly. You must ensure that the entire flue system is appliance before connecting it to the flue terminal. properly supported and connected. Seal the flue assembly to NOTE: Ensure that the outlet of the flue terminal is correctly the wall using cement or a suitable alternative that will provide orientated as shown in fig.

  • Page 19: Concentric Vertical Flue

    silicone lubricant; smear a small amount of the lubricant around both inner and outer connections, at both ends of the vertical flue connector (supplied with the VX terminal). NOTE: The appliance incorporates a ‘click-fit’ flue connection (see fig. 18. Ensure that both screws ‘C’ on the ‘click-fit’ have been slackened off.
  • Page 20 Fig. 19 IMPORTANT The vertical flue terminal is 1.0 metre in length and cannot be cut; therefore it may be necessary to adjust the height of the appliance to suit or use a suitable extension. RTN FLOW GAS HOT COLD Fig.

  • Page 21: Connecting The Gas And Water

    4.6 CONNECTING THE GAS AND WATER Hot water outlet Fig. 21 The appliance is supplied with an accessory pack that includes cock service valves. The service valves are of the compression type. Cold water inlet The accessory pack contains sealing washers’ etc, for use with stopcock the service valves.

  • Page 22: Section 5 - Commissioning

    SECTION 5 - COMMISSIONING 5.1 GAS SUPPLY INSTALLATION 5.7 CHECKING GAS PRESSURE AND COMBUS- TION ANALYSIS Inspect the entire installation including the gas meter, test for tightness and purge. Refer to BS 6891 (I.S. 813 in ROI) for The appliance is factory set so should require no additional specific instruction.

  • Page 23: Section 6 - Servicing Instructions

    5.11 REGULATING THE CENTRAL HEATING FOR UK ONLY Complete details of the boiler, controls, installation and com- SYSTEM missioning in the Benchmark checklist at the back of this Fully open all radiator and circuit valves and run the appliance book. It is important that the Benchmark checklist is correctly for both heating and hot water until heated water is circulating.
  • Page 24 6.4 COMPONENT REMOVAL PROCEDURE To remove a component, access to the interior of the appliance is essential. Isolate the appliance from the electrical supply and remove the fuse. And when necessary, close all service valves on the appliance, remove the appliance casing as described in section 4.7.1 and drain the water content from the appliance via the drain valve.
  • Page 25 6.11 PRINTED CIRCUIT BOARD (fig. 29) Carry out component removal procedure as described in 6.4. Pull the control fascia forward and lower it. Push the clips (O) which secure the PCB cover, remove cover, after carefully tak- ing note of all wiring connections and jumper tag configuration. Unhook and remove connection block (P).
  • Page 26 6.16 MAIN HEAT EXCHANGER (fig. 33) Carry out component removal procedure as described in 6.4. Remove the air chamber front cover. Locate and remove the gas pipe locking pin (A1) and swing/rotate the gas pipe away from the fan assembly (B1), (if necessary unscrew the gas pipe from the gas valve G1).
  • Page 27 6.20 FLUE COLLECTOR REMOVAL (fig. 37) Carry out component removal procedure as described in 6.4. Remove the air chamber front cover. Remove the heat exchang- er as per 6.16. Locate and remove the screw (Y1) that secures the flue gas analysis test point cover (Z1). Disconnect the flues thermistor wiring connections.

  • Page 28: Section 7 - Checks, Adjustments And Fault Finding

    SECTION 7 - CHECKS, ADJUSTMENTS AND FAULT FINDING 7.1 CHECKING APPLIANCE OPERATION temperature will fall whereby fan speed will increase relative to the output required. When the boiler has reached the set point When carrying out any repairs or servicing to the appliance, (+ hysterisis), the burner will switch off.

  • Page 29: Combustion Analysis Test

    7.3.1 CO FUNCTION SETTINGS Locate the CO button (see 7.3) Select the main selector switch in position FUNCTIONS ACTION ON THE BUTTON LED STATUS combustion analysis mode press once = burner running at maximum heating gas valve maximun setting press twice = burner running at maximum DHW gas valve minimum setting press three time = burner running at minimum NOTE...

  • Page 30: Fault Finding

    7.7.3 POLARITY CHECK 7.9 COMPONENT VALUES & CHARACTERISTICS With the appliance connected to the electrical supply and us- COMPONENT VALUE ing a suitable multimeter, carry out the following voltage tests: 230Vac • connect test leads between the Live & Neutral connections at the appliance terminal strip.

  • Page 31: Gas Valve Calibration

    The following icons light up on the monitor: table 2 during domestic hot water/absolute maximum calibra- METHANE LIQUID GAS tion MINIMUM NUMBER OF GAS (G20) (G31) FAN ROTATIONS during minimum calibration during heating maximum calibration 4. P during soft light fan speed calibration table 3 METHANE LIQUID GAS...

  • Page 32: Section 8 - Wiring Diagrams

    CLIMATIC CURVES CURVE DI TERMOREGOLAZIONE CN12 CN13 CN14 Trimmer P3 CN12 Temperatura esterna (˚C) EXTERNAL TEMPERATURE (°C) CN13 CN14 T80 Maximum set point for standard T range (JP7 removed) Trimmer P3 T45 Maximum set point for low T range (JP7 inserted) Fig.

  • Page 33: Functional Diagram

    FUNCTIONAL DIAGRAM Fig. 45...

  • Page 34: Section 9 - Lpg Instructions

    SECTION 9 - LPG INSTRUCTIONS 9.1 RELATED DOCUMENTS PARTS 1 & 2 FLUES & VENTILATION REQUIREMENTS BS 5440 BS 5449 PART 1 FORCED CIRCULATION OF HOT WATER SYSTEMS BS 5482 PART 1 DOMESTIC BUTANE & PROPANE GAS BURNERS IN PERMAMENT DWELLINGS BS 5546 INSTALLATION OF GAS HOT WATER SUPPLIES FOR DOMESTIC PURPOSES BS 6798...

  • Page 35: Gas Valve Minimum Setting

    9.6.3 GAS VALVE MINIMUM SETTING Set the CO button at minimum (see 9.6.1), once the minimum is obtained check that it corresponds with the appropriate CO value (Minimum) for the respective appliance. If the CO read- ing is correct, proceed to completion. However, if the CO reading is incorrect, the minimum gas pressure must be adjusted as follows:...
  • Page 36 COMMISSIONING: CO AND COMBUSTION RATIO CHECK BEFORE CO AND COMBUSTION RATIO CHECK NOTE The installation instructions should have been followed, gas type verified and gas supply pressure/rate checked as required The air/gas ratio valve is factory-set and must not be prior to commissioning.
  • Page 37 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 38: 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. Failuretoinstallandcommissionaccordingtothemanufacturer’sinstructionsandcompletethisBenchmarkCommissioningChecklistwillinvalidatethe warranty.Thisdoesnotaffectthecustomer’sstatutoryrights.
  • Page 39 SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider BeforecompletingtheappropriateServiceRecordbelow,pleaseensureyouhavecarriedouttheserviceasdescribedinthemanufacturer’sinstructions. Alwaysusethemanufacturer’sspecifiedsparepartwhenreplacingcontrols. SERVICE 01 SERVICE 02 Date: Date: Engineername: Engineername: Companyname: Companyname: TelephoneNo: TelephoneNo: GassaferegisterNo: GassaferegisterNo: Atmax.rate: COppm AND CO ²...
  • Page 40 Vokèra Warranty Terms and Conditions Vokèra Ltd offer customers the comfort of a parts and labour warranty repair service subject to the following terms and conditions. Vokèra Ltd only obligation under the guarantee shall be to repair or replace the faulty appliance at Vokèra Ltd discretion.
  • Page 41 d. To de-scaling or other work required as a result of hard water scale deposits or from damage caused by aggressive water or sludge resulting from corrosion. Indications that such work may be required include a noisy boiler, cold spots on radiators, sludge in pipes and poor circulation of the central heating system. e.
  • Page 42 ✎...
  • Page 44 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 0999 F 0844 391 0998 Vokèra Ireland West Court, Callan Co Kilkenny T 056 7755057 F 056 7755060 Vokèra Limited reserve the right to change specification without prior notice...

This manual is also suitable for:

Vokera vision 25 cVokera vision 30 c47-364-1047-364-11

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