VOKERA Direct 120L, Руководство по установке

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Unvented Hot Water Cylinder
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a. Contain a mechanical seal, not incorporating a water trap, which allows water into the branch pipe without allowing
foul air from the drain to be ventilated through the tundish;
b. Be a separate branch pipe with no sanitary appliances connected to it;
c. If plastic pipes are used as branch pipes carrying discharge from a safety device they should be either polybutylene
(PB) to Class S of BS 7291-2:2006 or cross linked polyethylene (PE-X) to Class S of BS 7291-3:2006;and
d. Be continuously marked with a warning that no sanitary appliance should be connected to the pipe.
4.4
Unit filling
WARNING: Switching on the equipment when it is not filled with water will seriously damage the electric heating
element.
WARNING: In the presence of water with a hardness degree >200ppm it is mandatory that you install a softener to
reduce limestone scaling inside the cylinder and keep the electric heating element and the hydraulic safety unit in
good working order.
To fill the equipment you need to:
•
The tap present in the hydraulic unit must be put in the open position, the opening of the tap allows the equipment’s
supply. The retain system incorporated in the safety hydraulic unit prevents from the heat water return.
•
open the main water supply or the equipment water supply cock;
•
open a hot water tap (e.g. bathroom, wash basin, etc.) to allow the water to flow out; when the water outflow from the
tap is constant the equipment will be full;
•
check that there are no leaks from the various hydraulic connections;
We recommend that you clean the pipes before laying them.
Only proceed with the electrical connection after performing this operation
4.5
Electrical connection
Wiring should be installed by a qualified, competent person in accordance with the prevailing building regulations, part P of
the current IEE regulations and all other directives.
WARNING: Switching on the equipment when it is not filled with water will seriously damage the electric
heating element.
WARNING: If the supply cable is damaged, it must be replaced by the manufacturer or by its technical support
service or a suitably qualified person.
Standard commercial cables can be used, 230 V supply lines must be laid separately above lengths of 10m.
The discharge pipes of the tundish, drain valves and motorised valves must be laid at distance from all electrical
components.
Before wiring the control components dismantle the casing to facilitate the work. Utilise the cut outs in the casing for
routing cables.
DANGER – Without earthing life threatening voltage can reach the pipework and
draw off points – it it imperative that you earth the immersion heater
Ensure that both hot and cold pipes are connected to the earth line by means of an
earth cable directly on the cylinder.