Dru Maestro 60/2 Tall RCH, Installation Manual

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My Flue Assist is a DRU web application to check whether an intended concentric system is permissible and provides
advice on how to adjust the appliance. Go to the DRU Service website for My Flue Assist. The information from the
installation manual is always leading.
7.3.2 Roof terminal (C31)
The roof terminal can end in a sloping and a flat roof.
The roof terminal can be supplied with an adhesive plate for a flat roof or with a universally adjustable tile for a sloping
roof.
When using a roof terminal (C31), the following applies:
The construction of the chosen system has to be allowed. The working method below indicates how the permissibility is
determined of a concentric system when using a roof terminal.
1
Count the number of 45° and 90° bends required (15° and 30° bends are also allowed; these are not counted).
1
Count the total number of whole metres of horizontal pipe length.
1
Count the total number of metres of vertical and/or sloping pipe length (roof terminal excluded).
1
Find the number of required bends and the total horizontal pipe length (see table 7-3, columns 1 and 2).
1
Find the required total vertical and/or sloping pipe length (see table 7-3, row 1).
1
A box with a letter means that the chosen concentric system is permitted.
1
Determine the adjustment of the appliance (see table 7-4).
1
Adjust the appliance correctly with, for instance, a restrictor slide and an air inlet guide (see section 8.2).
I nst allation manual
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