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VISION PLUS
High efficiency system boiler
Users Instructions
Installation &
Servicing
Instructions
VISION PLUS 20 S
VISION PLUS 25 S
VISION PLUS 30 S G.C. N° 41-364-08
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° 41-364-06
G.C. N° 41-364-07
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Related Manuals for Riello Vokera VISION PLUS 20 S
Summary of Contents for Riello Vokera VISION PLUS 20 S
- Page 1 VISION PLUS High efficiency system boiler Users Instructions Installation & Servicing Instructions VISION PLUS 20 S G.C. N° 41-364-06 VISION PLUS 25 S G.C. N° 41-364-07 VISION PLUS 30 S G.C. N° 41-364-08 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
1.1A GAS APPLIANCES BOILER CONFIGURATION 1.2A ELECTRICAL SUPPLY FIRST COMMISSIONING 1.3A WARRANTY REGISTRATION VENT CYCLE 1.4A APPLIANCE COMMISSIONING CHECKLIST (UK ONLY) OPERATING STATUS 1.5A HOW DOES IT WORK? COMMISSIONING 1.6A DIMENSION GAS SUPPLY INSTALLATION 1.7A CLEARANCES REQUIRED THE HEATING SYSTEM 1.8A FROST PROTECTION SYSTEM INITIAL FILLING OF THE SYSTEM... -
Page 3: A Gas Appliances
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: A Control Panel
1.9A CONTROL PANEL Indicates the connection to a remote device (OT or Your boiler is equipped with a large LCD display that indicates the RS485) appliance operating status. Indicates the connection to a WIFI device Indicates the presence of an outdoor temperature sensor Indicates the connection to a heat pump (not used on this model) -
Page 5: Getting Started
2A GETTING STARTED 2.1A PARAMETERS ACCESS Pressing the MENU key for at least 2 sec provides access 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. ƒ... -
Page 6: A Operating Mode
Vent cycle 2.3.3A ADJUSTING THE HEATING WATER Whenever the electrical supply to the appliance has been TEMPERATURE WITHOUT AN OUTDOOR disrupted (OFF) and then restored (ON), it will enter a 4-min TEMPERATURE SENSOR CONNECTED vent cycle. If there is no outdoor temperature sensor the boiler operates at a fixed point, the HEATING setpoint in this case can be set When the air purging cycle is in progress, all heat on the main page of the screen. - Page 7 2.3.6A RESET FUNCTION The “RESET” icon comes on when there is an alarm that requires a manual reset by the user (for example flame lockout). To reset the lockout press key 2 RESET. RESET If the reset attempts do not restart the boiler, contact you en- gineer or Vokera Ltd.
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Page 8: A Boiler Fault Codes
2.4A 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, the boiler is protected by the systems: PRESSURE - 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
In the case of stand by press any button to return to normal operating conditions. 4A WHAT IF... 4.1A WHAT IF I SUSPECT A GAS LEAK If you suspect a gas leak, turn off the gas supply at the gas meter and contact your installer or local gas supplier. -
Page 11: Introduction
INSTALLATION AND SERVICING INSTRUCTIONS INTRODUCTION All installers are asked to follow the Benchmark Scheme by This booklet is an integral part of the appliance. It is therefore adhering to the Code of Practise, which can be obtained from necessary to ensure that the booklet is handed to the person www.centralheating.co.uk. -
Page 12: Design Principles And Operating Sequence
DESIGN PRINCIPLES AND OPERATING SEQUENCE PRINCIPLE COMPONENTS MODE OF OPERATION When there is a request for heat and/or hot water via the time • A fully integrated electronic control board featuring electronic clock and/or any external control, the pump and fan are started, temperature control, anti-cycle control, pump over-run, self- the fan speed will modulate until the correct signal voltage is diagnostic fault indicator, full air/gas modulation... -
Page 13: Technical Data
TECHNICAL DATA Central Heating VISION PLUS 20S VISION PLUS 25S VISION PLUS 30S Heat input (kW) 20.00 25.00 30.00 Maximum heat output (kW) 60/80°C 19.46 24.38 29.25 Minimum heat output (kW) 60/80°C 3.41 4.65 4.65 Maximum heat output (kW) 30/50°C 21.30 26.95 32.25... - Page 14 Parameter Symbol VISION PLUS VISION PLUS VISION PLUS Unit Seasonal space heating energy efficiency class Water heating energy efficiency class Rated heat output Pnominal Seasonal space heating energy efficiency ηs Useful heat output At rated heat output and high-temperature regime (*) 19,5 24,4 29,3...
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Page 15: Pump Duty
PUMP DUTY Fig. 4 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. Fig. 4 1000 1100 1200 1300 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 stainless-steel heat exchangers - is used to protect the boiler heated. -
Page 18: E Gas Supply
a bath or shower, the appliance or any control pertaining to it must air is likely to be trapped. They should be used to expel trapped air not be within reach of a person using the bath or shower. and allow complete filling of the system. The location chosen for the appliance must permit the provision 3.6.5E EXPANSION VESSEL of a safe and satisfactory flue and termination. -
Page 19: Installation
INSTALLATION Horizontal flue terminals and accessories NOTE Please refer to 3 - 3E and use the appropriate PPE when Part No. Description Length carrying out any of the actions or procedures contained within 20122759 Standard horizontal flue Kit 900mm this section. 20122761 Telescopic flue kit 700mm... - Page 20 4.5.2 CONCENTRIC VERTICAL FLUE Using Fig. 15 as a reference, cut a 110mm diameter hole in the roof and/or ceiling to facilitate the route of the vertical flue system. NOTE: ensure that the top of the appliance - if already in position - is covered and protected from the possibility of any dust or debris falling or entering the appliance via the flue outlet.
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Page 21: Connecting The Gas And Water ("Fig. 17")
4.3.3 SAFETY VALVE Vertical Flue Terminals & Accessories Connect the safety valve connection pipe to the safety valve outlet and Code Description Length tighten. The discharge pipe must have a continuous fall away from the 20122763 Vertical Flue Kit 1000mm appliance to outside and allow any water to drain away thereby eliminating the possibility of freezing. -
Page 22: Instruction For Condensation Exhaust Connection
ELECTRICAL CONNECTIONS The boler is supplied with a short fly-lead. This lead can be used for connection to the electrical supply. Connect the fly-lead to a fused plug or fused isolator in the following way: • brown wire to LIVE supply •... -
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 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 They indicate the set point level set (1 notch minimum value, 4 notches maximum value) Indicates the days of the week 1 2 3 4 5 6 7... -
Page 25: Starting The Boiler
Scrolling message Password Value set Personalised Menu Parameters Value only if parameter P1.05 = 1 level in the factory values 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 MIN CH SET BT: 20 - MAX CH SET... -
Page 26: Boiler Configuration
Each time that the boiler is powered a vent cycle is carried out P3.06 lasting 4 min. The display shows the message -AIR lighting up the icon RESET. This parameter allows you to change the minimum number of the fan's rpm. P3.07 This parameter allows you to change the maximum number of the fan's rpm. - Page 27 P4.29 P4.13 This parameter allows you to specify the minimum heating setpoint that can be set for zone 1: When P4.12 = 1, this parameter allows you to set the address of the BE16 board. - range 20°C - 80.5°C, default 40°C for high temperature systems The factory setting for this parameter is 3 and can be set within the 1 - 6 range.
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Page 28: First Commissioning
FIRST COMMISSIONING Heating REQUEST, the radiator icon blinks: Ensure that steps 6.1 through to 6.6 have been completed be- fore supplying the gas and electrical supply to the appliance. ƒ Position the system’s master switch to the “on” position. ƒ Open the gas tap to allow fuel to flow. 5.8.2 OFF ƒ... - Page 29 board, it is possible to change the HEATING setpoint as follows: press the keys C or D and select the desired level of comfort within the range (-5 - +5). Note: if an outdoor temperature sensor is connected it is in any event possible to have the boiler operate at a fixed point by setting the parameter P4.18 = 0 (menu P4).
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Page 30: Commissioning
COMMISSIONING PRE-OPERATION CHECKS NOTE Please refer to 3 - 3E and use the appropriate PPE when Before attempting the initial lighting of the appliance, the following carrying out any of the actions or procedures contained within checks must be carried out: this section. -
Page 31: Regulating The Central Heating System
6.10 REGULATING THE CENTRAL HEATING and short periods and advise on the necessary precautions to SYSTEM prevent frost damage. Explain to the user that for continued safe and efficient operation, Fully open all radiator and circuit valves and run the appliance the appliance must be serviced annually by a competent person. -
Page 32: Cleaning The Primary Heat Exchanger
deposits or residues inside the device, which could damage it. CLEANING THE PRIMARY HEAT - After the cleaning operations, reassemble the siphon and the EXCHANGER SRD device, taking care to fit the components with due care. - Refer to 7.9 and carry out the component removal procedure Having cleaned the siphon and the SRD device, the siphon - Remove the casing as indicated in the paragraph “7.10 CA- must be filled with water before starting the boiler again. -
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. 30)
7.18 GAS VALVE (FIG. 30) Carry out component removal procedure as described in 7.9. The gas valve must be changed as complete unit. Disconnect the electrical plug and leads from the gas valve, slacken and unscrew gas valve inlet and outlet connections. Please note, the sealing washers (Q) must be discarded and replaced with new sealing washers. -
Page 35: Combustion Unit
7.21.2 TRANSFORMER Carry out component removal procedure as described in 7.9. Unscrew the screw that fixs the transformer and remove it. 7.22 COMBUSTION UNIT Refer to 7.9 and carry out the component removal procedure. - Remove the casing as indicated in paragraph “7.10 CASING Fig. -
Page 36: Checks, Adjustments And Fault Finding
CHECKS, ADJUSTMENTS AND FAULT FINDING N OTE NOTE Please refer to 3 - 3E and use the appropriate PPE when If the spark/sensing electrode does not sense ignition the appli- carrying out any of the actions or procedures contained within ance will re-attempt ignition a further 4-times then go to lockout. -
Page 37: Checking The Expansion Vessel
screw ƒ activate the combustion control function by pressing ƒ replace and store the analysis probe adapter supplied with buttons 2+3 for at least 2sec the boiler, in the documentation envelope ƒ set the boiler in the desired operating mode according to the season ƒ... -
Page 38: Electrical Checks
ELECTRICAL CHECKS COMPONENT VALUES & CHARACTERISTICS Any electrical checks must be carried out by a suitably quali- fied person. COMPONENT VALUE 230Vac 8.7.1 EARTH CONTINUITY TEST Pump 230Vac Isolate the appliance from the electrical supply, and using a Ignition transformer 230Vac suitable multi-meter carry out a resistance test. -
Page 39: Gas Valve Calibration
The boiler is delivered with the adjustments shown in the table 2 technical data table. MIN CH RPM FAN NATURAL GAS Depending on plant engineering requirements or regional SPEED (G20) (G31) flue gas emission limits it is, however, possible to modify this value, referring to the following graphs. -
Page 40: Lights And Faults
OFFSET ON THE REFERENCE AMBIENT TEMPERATURE Thermoregulation only works with the outdoor temperature sensor connected and active only for the HEATING function. The user can, in any event, indirectly intervene on the value of If P4.18 = 0 or outdoor temperature probe disconnected the the HEATING setpoint setting, with reference to the reference boiler operates at a fixed point. - Page 41 When there is a fault the icon blinks with a frequency of ƒ select the P3 menu and then P3.12 with the keys 0.5sec ON and 0.5sec OFF, the backlight blinks for 1min with ƒ set the parameter to 1 confirming the selection with Enter a frequency of 1sec ON and 1sec OFF after which it switches off;...
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Page 42: Boiler Fault Codes
8.15 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 43: Embedded Clock
8.17 EMBEDDED CLOCK Time ON is displayed again, then the programming of the time bands is resumed up to the maximum of the programmable The appliance incorporates an embedded clock that can be Enter bands (four), or else is pressed to confirm the bands set enabled and used to insert ON/OFF time periods for boiler operation;... -
Page 44: Wiring Diagrams
WIRING DIAGRAMS NOTE Please refer to 3 - 3E and use the appropriate PPE when Fig. 41 carrying out any of the actions or procedures contained within this section. EXTERNAL WIRING BE11 TExternal controls must to be added to the system and they must be connected to the appliance as shown in the following diagrams. - Page 45 FUNCTIONAL DIAGRAM Fig. 43...
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Page 46: Related Documents
10 LPG INSTRUCTIONS 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 47 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 48 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 49 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 50 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 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 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 53 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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