Rotex GW-20 H12 Instrucciones De Instalación página 84

5.9.8 Concentric horizontal flue gas outlet, vertical part air-surrounded by
shaft
Unit category : C93
A flue tube system according to C93 (C33) is permitted when using CE approved
flue material or the flue material provided by Rotex.
The ponts below have to be considered.
General
•
Flue outlet in shaft with 60 or 80 mm diameter (rigid or flexible).
•
When using plastic flue pipe materials, a minimum temperature class of T120
applies.
•
The transfer bend between concentric and vertical flue connection in the shaft
must be supported in accordance with supplier instructions. The assembly
instruction of the manufacturer for the flue system must always be followed in full.
•
In existing installations, the shaft must be inspected and if necessary cleaned
before the new installation is commissioned.
•
The tightness of the shaft towards living spaces must be ensured.
Permitted pipe length and system requirements
When a shaft (e.g.a brickwork chimney) has the purpose of air intake the following
requirements are applicable.
Flue gas pipe Dimension shaft [mm]
Diameter (mm) Square
(rigid or flexible)
DN 60 115 x 115
DN 80 135 x 135
Max. length [mtr]
Round
135 11
155 29
33