7.
Flue installation
The flue spigot of the MTM 52 heater must be capped with the draught regulator (which is a part of the standard
heater equipment) in the vertical position so that the exhaust fumes outlet is directed upwards. The stack must be
installed into the exhaust fumes outlet of the draught regulator.
To ensure proper combustion, the flue system must be installed properly. The following should apply:
•
pipe diameter: 150 mm,
•
use the drop separator so that the condensate can leave the stack duct without damaging the pipe exchanger.
•
check the tightness of the flue sections
•
minimal stack height is 5 metres,
•
wind should freely fan the stack cowl from all directions
•
if possible, all stack sections should be vertical - horizontal sections should be avoided as well as stack pipe
bends. If they are necessary (e.g. two bends if the pipe runs through a wall or a window), the maximal bend angle
equals 45° and the minimal stack height should be increased to 6 meters,
•
Fig. 4. Flue system
