Introduction - Riello Vokera VISION PLUS 20 S User Instructions

INSTALLATION AND SERVICING INSTRUCTIONS
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INTRODUCTION

All installers are asked to follow the Benchmark Scheme by
adhering to the Code of Practise, which can be obtained from
www.centralheating.co.uk.
The VISION PLUS is comprised of a 7-model range of high
efficiency appliances, with outputs ranging from 20kW to 40kW.
These appliances – by design – incorporate electronic ignition,
circulating pump, expansion vessel, safety valve, pressure
transducer and automatic by-pass.
The VISION PLUS S is a range of system boilers.
The VISION PLUS range is produced as room sealed, category
II2H3P appliances, suitable for internal wall mounting applica-
tions only. Each appliance is provided with a fan powered flue
outlet with an annular co-axial combustion air intake that can
be rotated – ho rizontally – through 360 degrees for various
horizontal or vertical applications.
The VISION PLUS is approved for use with C13 & C33 type
flue applications.
These appliances are designed for use with a sealed system
only; consequently they are not intended for use on open
vented systems.
R
Fig. 3
F G
This booklet is an integral part of the appliance. It is therefore
necessary to ensure that the booklet is handed to the person
responsible for the property in which the appliance is located/
installed. A replacement copy can be obtained from Vokèra
customer services.
VISION PLUS boiler complies with basic requirements of the
following Directives:
- Regulation (EU) 2016/426;
- Yield directive: Article 7(2) and Annex III of directive 92/42/
EEC;
- Electromagnetic compatibility directive 2014/30/EU;
- Low-voltage directive 2014/35/EU;
- Directive 2009/125/EC Ecodesign for energy-using
appliances;
- Regulation (EU) No. 2017/1369 Energy Labelling;
- Delegated Regulation (EU) No. 811/2013;
- Delegated Regulation (EU) No. 813/2013.
At the end of its life, the product should be not be
disposed of as solid urban waste, but rather it should be
handed over to a differentiated waste collection centre.
General layout
1 Safety valve
2 Drain valve
3 Pressure transducer
4 Pump
5 Lower auto air vent
6 De-aeration valve
7 Flow thermistor (NTC)
8 Limit thermostat
9 Main heat exchanger
10 Detection electrode
11 Burner
12 Ignition electrode
13 Ignition transformer
14 Fume analysis cap
15 Top flue outlet
16 Flue sensor
17 Expansion vessel
18 Clapet
19 Fan
20 Mixer
21 Return thermistor
22 Siphon
23 Injector
24 Gas valve
25 Analogue pressure gauge
R Heating return connection
F Heating flow connection
G
Gas connection
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