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VISION PLUS
High efficiency combi boiler
Users Instructions
Installation &
Servicing
Instructions
VISION PLUS 25 C
VISION PLUS 30 C G.C. N° 47-364-53
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.
G.C. N° 47-364-52
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Table of Contents
Related Manuals for Riello VOKERA VISION PLUS Series
Summary of Contents for Riello VOKERA VISION PLUS Series
- Page 1 VISION PLUS High efficiency combi boiler Users Instructions Installation & Servicing Instructions VISION PLUS 25 C G.C. N° 47-364-52 VISION PLUS 30 C G.C. N° 47-364-53 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 2: Table Of Contents
THINGS YOU SHOULD KNOW SETTINGS MENU TREE STRUCTURE 1.1A GAS APPLIANCES STARTING THE BOILER 1.2A ELECTRICAL SUPPLY BOILER CONFIGURATION 1.3A WARRANTY REGISTRATION FIRST COMMISSIONING 1.4A APPLIANCE COMMISSIONING CHECKLIST (UK ONLY) VENT CYCLE 1.5A HOW DOES IT WORK? OPERATING STATUS 1.6A DIMENSIONS COMMISSIONING 1.7A... -
Page 3: Things You Should Know
USERS INSTRUCTIONS INTRODUCTION Dear Customer Your Vokèra VISION PLUS boiler has been designed to meet and exceed the very latest standards in gas central heating tech- nology, 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: Control Panel
1.9A CONTROL PANEL Indicates the connection to a remote device (OT Your boiler is equipped with a large LCD display that indicates or RS485) the appliance operating status. Indicates the connection to a WIFI device Indicates the presence of an outdoor tempera- ture sensor Indicates the activation of special domestic hot water functions or the presence of a system for... -
Page 5: Getting Started
2A GETTING STARTED 2.1A PARAMETERS ACCESS 2.2A PROGRAMMING THE BOILER Ensure the gas and electrical supplies to the appliance are Pressing the MENU key for at least 2 sec provides access switched on. to the P1 menu, allowing the parameters to be programmed. If the case the menu is empty, P8.04 is displayed, otherwise the first item in the menu appears. -
Page 6: A Operating Mode
In this status the boiler activates the traditional function of Vent cycle just domestic hot water, the interface normally displays the Whenever the electrical supply to the appliance has been delivery temperature. In the event of a domestic hot water pick disrupted (OFF) and then restored (ON), it will enter a 4-min up, the display shows the temperature of the domestic hot vent cycle. -
Page 7: A Otbus Remote Control Connection
2.3.5A ADJUSTING THE HEATING WATER 2.3.8A RESET FUNCTION TEMPERATURE WITH AN OUTDOOR The “RESET” icon comes on when there is an alarm that TEMPERATURE SENSOR CONNECTED requires a manual reset by the user (for example flame If an outdoor temperature sensor is installed and thermoregu- lockout). -
Page 8: A Boiler Fault Codes
2.5A BOILER FAULT CODES ERROR DESCRIPTION OF ALARM FAULT CODE TYPE flame lockout/ E010 condensate discharge blockage definitive fumes discharge alarm/air intake obstructed E011 extraneous flame transitional E020 limit thermostat definitive E030 fan fault definitive E040 pressure transducer – load system definitive E041 water transducer –... -
Page 9: How To
3A HOW TO... 3.1A HOW TO TOP-UP THE SYSTEM While the electrical supply and the fuel supply remain active, PRESSURE the boiler is protected by the systems: - heating anti-freeze: this function is activated if the temperature The system pressure must be checked periodically to ensure measured by the flow sensor drops below 5°C. -
Page 10: What If
3.7A INTERFACE STAND BY Usually, when there are no faults or heat requests, the display always shows the temperature measured by the flow sensor. If within 10 seconds there is no heat request without any key being pressed the interface goes into stand by. The display shows the current time, the two points separating the time from the minutes blink with a frequency of 0.5sec ON and 0.5sec OFF, while the status icons will be active if necessary:... -
Page 11: Introduction
INSTALLATION AND SERVICING INSTRUCTIONS INTRODUCTION All installers are asked to follow the Benchmark Scheme by VISION PLUS boiler complies with basic requirements of the adhering to the Code of Practise, which can be obtained from following Directives: www.centralheating.co.uk. - Regulation (EU) 2016/426; The VISION PLUS is comprised of a 7-model range of high - Yield directive: Article 7(2) and Annex III of directive 92/42/ efficiency appliances, with outputs ranging from 20kW to 40kW. -
Page 12: Design Principles And Operating Sequence
DESIGN PRINCIPLES AND OPERATING SEQUENCE PRINCIPLE COMPONENTS Thereafter, the boiler’s output will either be increase to maximum or modulate to suit the set requirement. When the appliance • A fully integrated electronic control board featuring electronic reaches the desired temperature the burner will shut down and temperature control, anti-cycle control, pump over-run, self- the boiler will perform a three-minute anti-cycle (timer delay). -
Page 13: Technical Data
TECHNICAL DATA Central Heating VISION PLUS 25C VISION PLUS 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 14 VISION PLUS 25C Seasonal space heating energy efficiency class Water heating energy efficiency class Parameter Symbol Value Unit Parameter Symbol Value Unit Seasonal space heating Rated heat output Prated ηs energy efficiency For boiler space heaters and boiler combination For boiler space heaters and boiler combination heaters: useful heat output heaters: useful efficiency At rated heat output and high-...
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Page 15: Variable Speed Circulator
VARIABLE SPEED CIRCULATOR 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 Fig. 6 Portata impianto [l/h] Flow rate (l/h) HOW TO FREE THE PUMP To “release”... -
Page 16: General Requirements (Uk)
GENERAL REQUIREMENTS (UK) This appliance must be installed by a competent person in ac- If the gas supply serves more than one appliance, it must be cordance with the Gas Safety (Installation & Use) Regulations. ensured that an adequate supply is maintained to each appli- ance when they are in use at the same time. -
Page 17: Electrical Supply
3.6.5 EXPANSION VESSEL 3.10 WATER TREATMENT The appliance has an integral expansion vessel to accom- Vokèra recommend that an inhibitor - suitable for use with modate the increased volume of water when the system is aluminium heat exchangers - is used to protect the boiler and heated. -
Page 18: E Gas Supply
I.S. 813, Annex K. 3.6.5E EXPANSION VESSEL When an appliance is installed in a room or internal space The appliance has an integral expansion vessel to accommo- containing a bath or shower, the appliance or any control date the increased volume of water when the system is heated. pertaining to it must not be within reach of a person using the Refer to the specification table for more detailed information. -
Page 19: Installation
INSTALLATION NOTE Please refer to 3 - 3E and use the appropriate PPE when Reduction for additional bends carrying out any of the actions or procedures contained within Bend Reduction in maximum flue length for each bend this section. 45º bend 1.0 metre PREPARATION FOR MOUNTING THE 90º... - Page 20 4.2.5 FITTING THE REAR FLUE (REAR FLUE OUTLET ONLY) Using the template provided, mark and drill a 125mm hole for the passage of the flue pipe. The hole should be drilled LEVEL to ensure any condense fluid that forms, is allowed to drain back to the appliance.
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Page 21: Connecting The Gas And Water (Fig. 22)
4.5.2 CONCENTRIC VERTICAL FLUE Vertical Flue Terminals & Accessories Using Fig. 21 as a reference, cut a 110mm diameter hole in Code Description Length the roof and/or ceiling to facilitate the route of the vertical flue system. NOTE: ensure that the top of the appliance - if already 20122763 Vertical Flue Kit 1000mm... -
Page 22: Electrical Connections
4.3.3 COLD WATER INLET The electrical supply must be as specified in section 3/3E. A qualified electrician should connect the appliance to the electri- The appliance is supplied with a 15mm stopcock, connect a 15mm cal supply. If controls - external to the appliance - are required, pipe to the inlet of the stopcock and tighten both nuts. -
Page 23: Operation
OPERATION CONTROL PANEL NOTE Please refer to 3 - 3E and use the appropriate PPE when Your boiler is equipped with a large LCD display that indicates carrying out any of the actions or procedures contained within the appliance operating status. this section. -
Page 24: Settings Menu Tree Structure
When the icon is active, it is possible to navigate the menu or raise the value of the selected parameter When the icon is active, it is possible to navigate the menu or lower the value of the selected parameter The icon comes on if central heating is active, it blinks if a heating request is in progress The icon comes on if domestic hot water is active, it blinks... -
Page 25: Starting The Boiler
Value set Scrolling message Password Personalised Menu Parameters Value in the only if parameter P1.05 = 1 level values factory P4.15 MAIN ZONE TYPE 0 / 1 INSTALLER AT: MIN CH SET - 80.5 80.5 P4.16 MAX CH SET INSTALLER BT: MIN CH SET - 45.0 AT: 40 - MAX CH SET P4.17... -
Page 26: Boiler Configuration
Each time that the boiler is powered a vent cycle is carried out P3.05 lasting 4 min. The display shows the message -AIR lighting up This parameter allows you to disable the vent cycle function; the factory the icon RESET. setting is 1, set the parameter to 0 to disable the function. - Page 27 P4.10 P4.26 This parameter allows you to change the FORCED HEATING TIMING OFF, When P4.12 = 1 this parameter allows you to specify the type of zone to be regarding the delay time introduced for re-igniting the burner in the face of an heated.
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Page 28: First Commissioning
FIRST COMMISSIONING ƒ When there is a heat request and the boiler is igniting, the icon appears on the display. Ensure that steps 6.1 through to 6.6 have been completed be- Heating REQUEST, the radiator icon blinks: fore supplying the gas and electrical supply to the appliance. ƒ... - Page 29 The level bars beside the heating icon show the setpoint value 5.8.7 SAFETY STOP set with respect to the operating range: If there are ignition faults or boiler operation malfunctions, - four bars on = max setpoint carry out a “SAFETY STOP”. On the display, in addition to the fault code, the icon is also displayed, which blinks with a - one bar on = min setpoint...
- Page 30 5.8.10 SPECIAL DOMESTIC HOT WATER FUNCTIONS The boiler has special functions more a more efficient management of the domestic hot water when there a high domestic hot water temperature input. By programming the P5.11 parameter it is possible to activate the following function, for more information about setting the parameter see the relative paragraph “5.5 Boiler configuration”.
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Page 31: Commissioning
COMMISSIONING INITIAL FLUSHING OF THE SYSTEM NOTE Please refer to 3 - 3E and use the appropriate PPE when The whole of the heating system must be flushed both cold carrying out any of the actions or procedures contained within and hot as detailed in 6.9. -
Page 32: Setting The System Design Pressure
6.13 FINAL CHECKS SETTING THE DHW OUTLET TEMPERATURE • ENSURE ALL TEST NIPPLES ON THE APPLIANCE GAS The DHW outlet temperature can be adjusted between 37 °C VALVE ARE TIGHT AND CHECKED FOR TIGHTNESS. - 60 °C via the buttons A & B (Fig. 1). •... -
Page 33: Replacement Of Components
REPLACEMENT OF COMPONENTS Although it is anticipated that this appliance will give years of reliable, trouble free service, the life span of components will be determined by factors such as operating conditions and usage. Should the appliance develop a fault, the fault finding section will assist in determining which component is malfunctioning. -
Page 34: Gas Valve (Fig. 32)
from the PCB, locate and remove the PCB securing screws, remove the required PCB. Replace in the reverse order ensuring that the position of the 2 control knobs are correctly aligned with the respective po- tentiometers on the PCB. Ensure that the correct jumper tag configuration has been re- spected. -
Page 35: Main Heat Exchanger (Fig. 35)
are in good condition, taking care to. 7.17 MAIN HEAT EXCHANGER (FIG. 38) Carry out component removal procedure as described in 7.4. 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 36: Flue Collector Removal (Fig. 39)
7.21 FLUE COLLECTOR REMOVAL (FIG. 42) Carry out component removal procedure as described in 7.4. Remove the air chamber front cover. Remove the heat exchang- er as per 7.17. Locate and remove the screw (Y1) that secures the flue gas analysis test point cover (Z1). Disconnect the flues thermistor wiring connections. -
Page 37: Checks, Adjustments And Fault Finding
CHECKS, ADJUSTMENTS AND FAULT FINDING NOTE As the water temperature increases, the temperature sensors Please refer to 3 - 3E and use the appropriate PPE when – located on the flow pipe of the boiler – reduce the fan speed via the electronic circuitry. -
Page 38: Checking The Expansion Vessel
ƒ The boiler will function at min power. ƒ Check on the analyser that the min CO2 complies with what indicated in the table, if data are different proceed with the calibration of the gas valve - see paragraph “8.10 Gas valve calibration”... -
Page 39: Electrical Checks
ELECTRICAL CHECKS COMPONENT VALUES & CHARACTERISTICS Any electrical checks must be carried out by a suitably quali- fied person. COMPONENT VALUE 230Vac 8.6.1 EARTH CONTINUITY TEST Pump 230Vac Isolate the appliance from the electrical supply, and using a Valve actuator 230Vac suitable multi-meter carry out a resistance test. - Page 40 After setting the desired output report the value in table 2 the table on the back cover of this manual, for future MIN RPM FAN NATURAL GAS references. SPEED (G20) (G31) Curva portata termica - giri ven�latore HTG curve - VISION PLUS 1.400 1.400...
- Page 41 SELECTING THE THERMOREGULATION CURVE (PARA- NIGHT COMPENSATION (PARAMETER P4.20) METER P4.19) If a ROOM THERMOSTAT is connected to a programming The thermoregulation curve for heating maintains a theoretical timer, from the menu P4 parameter P4.20 the night temperature of 20°C indoors, when the outdoor temperature is compensation can be enabled.
- Page 42 If the reset attempts do not activate the boiler, contact FOR FAULT E060 The boiler is working normally, but does not provide any your installer or Vokera Ltd. stability of the domestic hot water temperature that, in any FOR FAULT E041 event, is supplied at a temperature of around 50°C.
- Page 43 8.15 INFO MENU Pressing key 3 on the display screen displays a list of informa- tion regarding the operation of the boiler listed by parameter name and value. Passing from the display of one parameter to the next takes place by pressing respectively the keys Pressing the key allows the selected parameter to be displayed;...
- Page 44 8.16 EMBEDDED CLOCK Setting the time bands The display shows TIME ON, press to set the ignition time, The appliance incorporates an embedded clock that can be with change the time and confirm with enabled and used to insert ON/OFF times for the heating. The display shows TIME OFF, press to set the switching NOTES...
- Page 45 WIRING DIAGRAMS NOTE Please refer to 3 - 3E and use the appropriate PPE when carrying out any of the actions or procedures contained within this section. EXTERNAL WIRING The appliance comes with a factory fitted (TA) link to allow basic operation of the boiler via the mode selector switch.
- Page 46 FUNCTIONAL DIAGRAM Fig. 49...
- Page 47 10 LPG INSTRUCTIONS 10.1 RELATED DOCUMENTS BS 5440 PARTS 1 & 2 FLUES & VENTILATION REQUIREMENTS 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 INSTALLATION OF BOILERS OF RATED NOT EXCEEDING 60kW...
- Page 48 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 49 Benchmark Commissioning & Warranty Validation Service Record It is a requirement that the boiler is installed and commissioned to the manufacturers’ To instigate the boiler warranty the boiler needs to be registered with the manufacturer within one month of the installation. The warranty rests with the end-user (consumer), and they should be made aware it is ultimately their responsibility to register with the manufacturer, within the allotted time period.
- Page 50 GAS BOILER SYSTEM COMMISSIONING CHECKLIST & WARRANTY VALIDATION RECORD Address: Boiler make and model: Boiler serial number: Commissioned by (PRINT NAME): Gas Safe registration number: Company name: Telephone number: Company email: Company address: Commissioning date: Heating and hot water system complies with the appropriate Building Regulations? Time, temperature control and boiler interlock provided for central heating and hot water Boiler Plus requirements (tick the appropriate box(s)) Weather compensation...
- Page 51 SERVICE & INTERIM BOILER WORK RECORD It is recommended that your boiler and heating system are regularly serviced and maintained, in line with manufacturers’ instructions, and that the appropriate service / interim work record is completed. Service provider When completing a service record (as below), please ensure you have carried out the service as described in the manufacturers’ instructions. Always use the SERVICE/INTERIM WORK ON BOILER SERVICE/INTERIM WORK ON BOILER Date:...
- Page 52 SERVICE & INTERIM BOILER WORK RECORD It is recommended that your boiler and heating system are regularly serviced and maintained, in line with manufacturers’ instructions, and that the appropriate service / interim work record is completed. Service provider When completing a service record (as below), please ensure you have carried out the service as described in the manufacturers’ instructions. Always use the SERVICE/INTERIM WORK ON BOILER SERVICE/INTERIM WORK ON BOILER Date:...
- Page 53 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 54 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 55 RANGE RATED - EN 15502 The max CH input of this boiler has been adjusted to_____ kW, equivalent to _____ rpm max CH fan speed. Date___/____/____ Signature _____________________ Boiler serial number _____________________ Registered address: Vokèra Ltd Borderlake House Unit 7 Riverside Industrial Estate London Colney Herts AL2 1HG www.vokera.co.uk...
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Questions and answers
Hello, we have purchased the boiler with a second hand shepherds hut. How can we tell which model it is ?
The Vokera Vision Plus Series consists of a range of seven high-efficiency models with outputs from 20kW to 40kW. You can identify the specific model by checking the appliance log book, installation manual, or any labels on the boiler itself. Additionally, the user manual may contain relevant information about the model.
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