Vaillant ecoTEC VU Betriebsanleitung PDF herunterladen (Seite 7)

Operating instructions ecoTEC plus 0020116701_00 7

Safety

Caution!

> Under no circumstances should you add frost protection

agents (or other additives, e.g. jointing compounds, cor-

rosion protection agents, etc.) to the heating water with-

out first consulting your qualified competent person.

Otherwise, this could result in damage to seals and dia-

phragms as well as noises during heating operation.

Vaillant assumes no liability for this or any consequential

damage.

Another way to protect the heating system and the boiler

from frost is to drain them. In doing so, you must ensure

that the heating system and boiler are completely drained.

> Contact your approved heating specialist company for

advice.

Keeping the boiler ready for operation with an

emergency power generator in the event of a power

cut

Your recognised heating specialist company connected your

boiler to the power mains during installation.

If the power supply is cut, it is possible that parts of the

heating system may become damaged by frost.

If you want to maintain the operation of the boiler during a

power cut using an emergency power generator, take note

of the following:

> Make sure that the technical values of this generator

(frequency, voltage, earthing) match those of the power

mains.

> Contact your approved heating specialist company for

advice.

Changes to the surroundings of the boiler

You must not make any changes to the surroundings of the

boiler:

> Never shut down the safety devices.

> Do not tamper with any of the safety devices.

> Do not make any changes:

– to the boiler

– to the gas, air, water and electricity supply lines,

– to the entire flue system,

– to the entire condensate drain system,

– to the expansion relief valve or the drain line and

– to constructional conditions that could affect the

operational reliability of the boiler.

Cupboard Installation

> If you require your boiler to be fitted into a kitchen type

cupboard then please consult your approved heating

specialist company. Under no circumstances must you

enclose your boiler yourself.

Enclosing the boiler in a cupboard requires compliance with

the special design instructions. This is to ensure all neces-

sary access is available for all necessary future service

requirements.

What to do if there are leaks in the hot water pipes

Take note of the following:

> In the event of leaks, immediately close the cold water

stop valve in the hot water pipework between the boiler

and the draw-off points.

> Have the leak repaired by your approved heating special-

ist company.

With Vaillant ecoTEC plus boilers, the cold water stop valve

is not included in the scope of delivery of your boiler.

> Ask your approved heating specialist company where

they fitted the cold water stop valve.

Preventing damage caused by low system pressure

in the heating system

To prevent the heating system being used when the amount

of water is too low and to therefore prevent any subsequent

damage that may be caused by this, note the following:

> Check the filling pressure of the heating system at regu-

lar intervals.

> Always observe the information on filling pressure pro-

vided in ¬Section 5.1.3.

Requirements for the installation site

It is not necessary to keep a clearance between the boiler

and combustible materials or components since, at the

nominal heat output of your boiler, the temperature on the

surface of the casing is always lower than the maximum

permissible temperature of 85 °C.

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