7. Combustible air ventilation
Picture 20
It must be established that there is a
•
sufficient supply of air for combustion.
The amount of fresh air necessary is
•
dependent on the connection.
In areas where the total warm load of
•
the gas appliances is less than
50 kW, the combustion air supply can
come from either an air supply or
ventilation openings to the outside
Local regulations must be observed:
•
8. Authorization
Inform the following about the
•
installation (as far as necessary):
–
Gas supplier
–
Building inspector
–
Ventilation/ Air combustion agency
–
Factory safety and health codes
agency
All work at the customer installation
•
site (gas/ water/ electricity/ drainage)
can be performed only by a qualified
agent from an authorized supplier or
contractor
The specifications, standards,
•
regulations and technical
requirements of the respective
countries regarding the installation of
gas units must be adhered to.
47
EN