BLUEHELIX TECH RRT 24 H
168 EN
cod. 3541C661 - Rev. 00 - 10/2018
Connection to collective flues
fig. 28- Examples of connection to collective flues ( = Air / = Fumes)
Table. 7 - Typology
If the boiler is to be connected BLUEHELIX TECH RRT 24 H to a collective flue or to a single flue with natural draught,
the flue or chimney must be expressly designed by professionally qualified technical personnel in conformity with the
current regulations and be suitable for sealed chamber units equipped with fan.
Backflow preventer valve
The boiler BLUEHELIX TECH RRT 24 H is equipped as standard with a backflow preventer valve (anti-backflow sys-
tem), therefore it can be connected to a positivepressure collective flue system, only if using G20 gas.
Type Description
C2X Intake and exhaust in common flue (intake and exhaust in same flue)
C4X Intake and exhaust in common and separate flues, but undergoing similar wind conditions
C8X Exhaust in single or common flue and wall intake
B3X
Intake from installation room by means of concentric duct (that encloses the exhaust) and exhaust in common flue with natural draught
IMPORTANT- THE ROOM MUST BE PROVIDED WITH APPROPRIATE VENTILATION
C93 Exhaust to a vertical terminal and intake from existing flue.
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