Daikin Rotex GW-20 C22 Installation Instructions Manual page 87

5.10.6 Air supply from the facade and a roof outlet with communal
exhaust system
Unit category: C83
An air supply from the facade and a roof outlet with communal exhaust system is
permitted.
IMPORTANT
• The air supply in the facade must be fitted with an inlet
roster (A).
• The communal output system must be fitted with a traction
extractor hood (B).
• If the communal output system is situated in the outdoors,
the output pipe must be double-walled or insulated.
Permitted pipe length
Combustion gas outlet pipe between the unit and the communal output system and
air supply pipe between the unit and the inlet roster together:
RKOMB22AAV1H
RKOMB28AAV1H
RKOMB33AAV1H
The minimum diameters of the communal output system based on vacuum
Number of RKOMB22AAV1H
units
2 110
3 130
4 150
5 180
6 200
7 220
8 230
9 240
10 260
11 270
12 280
Communal combustion gas outlet
The output of the combustion gas outlet can be made in any location on the sloping
roof surface, providing the outlet in the roof surface has the same orientation as the
air supply in the facade. On a flat roof, the outlet of the combustion gas outlet must be
made in the "free" outlet area.
Fit a condense output.
Note
The communal outlet is certified in combination with the unit.
100 m
85 m
80 m
Flue tube diameter
RKOMB28AAV1H RKOMB33AAV1H
130
150
180
200
220
230
250
270
280
290
300
130
150
180
200
220
230
250
270
280
290
300
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