4
Operating manual
ecoCRAFT
Filling pressure of the heating system
The filling pressure of the heating installation should be
checked at regular intervals.
Emergency power supply
Your specialist technician connected your gas heating
boiler to the electrical mains during installation.
If you wish to keep the unit running with an emergency
power supply in the event of a power failure, the
technical specification of the unit (frequency, voltage,
earthing) must be in agreement with the mains power
supply, and must be rated to at least the power
consumption of your unit. Please consult your heating
engineer on this subject.
Frost protection
If you are going to be away during a cold period, make
sure the heating system remains in operation and that
the rooms are sufficiently heated.
Caution!
The frost protection and monitoring devices are
only active if the mains switch of the unit is
depressed and shows a green light.
Addition of frost preventative medium to the
heating water is not permitted. Otherwise it
could result in damage to seals and diaphragms
as well as to noises in the heating operation.
Vaillant assumes no liability for this and such
consequential damages.
Your unit has a frost protection function: If the heating
flow temperature falls below 10°C with the main switch
turned on, the appliance starts up and heats the entire
heating circuit to approx. 20 °C.
Caution!
Through-flow of the entire heating installation
cannot be guaranteed.
Another way to protect the heating system and the
appliance from frost is to drain them. You must ensure
that the system and the appliance are completely
drained.
Contact your heating engineer.
3
Notes on the installation and
operation
3.1 Intended
use
The Valliant ecoCRAFT units are state-of-the-art
appliances which have been constructed in accordance
with recognised safety regulations. Nevertheless, there
is still a risk of death or serious injury to the user or
others or of damage to the device and other property in
the event of improper use or use for which it is not
intended.
The units are intended as heat generators for hot water
- central heating installations. Any other use or extended
use is considered to be improper. The manufacturer or
supplier is not liable for any resulting damage. The user
alone bears the risk.
Intended use includes the observance of the operating
and installation manual and all other applicable
documents, as well as adherence to the maintenance
and inspection conditions.
Caution!
Any improper use is forbidden.
The appliances must be installed by a heating engineer,
who is responsible for adhering to the existing
regulations, rules and guidelines.
3.2
Requirements of the installation site
The Vaillant gas heating boilers ecoCRAFT must be
installed in boiler rooms. Ask your heating engineer
which national regulations must be observed.
The entire installation site should be frost-proof.
Observe the specified frost protection measures in
Chapter 2 if you are unable to ensure this requirement.
Note!
It is not necessary to keep a clearance between
the appliance and combustible materials or
components, since at the rated heating power
of the appliance the temperature at the surface
of the housing is always lower than the
maximum allowed temperature of 85 °C.
When installing the unit, the recommended minimum
distances given in the maintenance manual should be
observed for reasons of accessibility.
3.3 Care
• Clean the exterior of your appliance with a damp cloth
and a little soap.
Note!
Do not use scouring or cleaning agents, which
may damage the housing or plastic fittings.
2 Safety instructions
3 Notes on the installation and operation
