Ferroli BLUEHELIX HITECH RRT K 50 Instrucciones De Uso, Instalación Y Mantenimiento página 300

Connection to collective flues
C
8X
fig. 36- Examples of connection to collective flues (
Table 9- Typology
Type Description
Exhaust in single or common flue and wall intake
C8X
Intake from installation room by means of concentric duct (that encloses the exhaust) and exhaust in
B3X
common flue with natural draft
IMPORTANT- THE ROOM MUST BE PROVIDED WITH APPROPRIATE VENTILATION
Exhaust to a vertical terminal and intake from existing flue.
C93
If the BLUEHELIX HITECH RRT K 50 boiler is to be connected to a flue or a single chimney with
natural draft, 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.
Clapet non-return valve
The BLUEHELIX HITECH RRT K 50 boiler is fitted as standard with a Clapet non-return valve
(backflow preventer) therefore, only if running on Natural Gas, it can be connected to collective
flues in positive pressure.
Using this type of installation, parameter P67 must be set to 1.
In case of a type C(10)3 or C(11)3 boiler installation apply, IN A CLEARLY VISIBLE PLACE
on the FRONT PANEL, the relevant white sticker included in the document envelope sup-
plied with the unit.
300
BLUEHELIX HITECH RRT K 50
C
C
93
cod. 3541Z782 — Rev 00 - 10/2022
2X
C
93
= Air /
C
4X
= Fumes)
EN