11
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
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 – horizontally – 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.
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;
- Delegated Regulation (EU) No. 814/2013.
At the end of its life, the product should be not be dis-
posed of as solid urban waste, but rather it should be
handed over to a differentiated waste collection centre.
Fig. 4
General layout
1
Domestic hot water heat exchanger
2
Drain valve
3
Condense trap
4
Safety valve
5
Pressure transducer
6
Gas valve
7
Gas injector
8
Main heat exchanger
9 Burner
10 Flues thermistor (NTC)
11 Fan assembly with mixer
12 Silencer
13 Flue gas analysis test point
14 Flue outlet & air intake
15 Atmospheric tube
16 Ignition transformer
17 Top AAV+De-aerator
18 Spark Electrode
19 Sensing Electrode
20 High limit thermostat
21 Flow thermistor (NTC)
22 Expansion vessel
23 Return thermistor (NTC)
24 Bottom auto air vent (AAV)
25 Pump
26 DHW flow switch
27 Three port valve actuator
R Heating return connection
F
Heating flow connection
G
Gas connection
O
Hot water outlet
I
Cold water inlet
1 INTRODUCTION
INSTALLATION AND SERVICING INSTRUCTIONS
F O G I R
