Mark GSW+ 30, Техническое руководство

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3.3 Placement combustion gas discharge and air supply
The GSW+ units are suitable for following drainage systems: C13, C33, C53, B23. The flue gas drainage
system must comply with national and local regulations. The extension pipes must tolerate condensate and
be suitable for a flue gas temperature of 100 °C. Flue outlets must be of polypropylene or stainless steel
316L. The drainage material must be positively accessed for the application of gas-fired units. This positive
assessment must be done by an ISO 17025 accredited body.
The connection of the flue gas must be placed outside. For the intake of combustion air can be chosen
from:
– with the intake of combustion air from the outside (type “C”);
– with the intake of combustion air from the room where the heater is installed (type “B”).
The used flue pipes, terminals and accessories must be tested. Use only suction and discharge terminals
referenced by Mark. With the use of non-approved equipment the warranty will expire.
Placement of the air inlet ring
Units that receive the combustion air from the installation area (type “B”) must be fitted with a protective
grate. This to prevent large parts of contamination from coming into the compartment of the unit (figures
A). Installation areas wherein a type B unit is installed must have sufficient air supply. At least 100 m3/h per
unit.
Units where the combustion air is drawn from outside (type “C”) must be provided with the supplied
mounting ring (figures B).
The extensions must be provided with a lip ring. Use soapy water to easily connect them.
A1 A2 A2
B1 B2 B3