Ferroli BlueHelix HiTech RRT H Instructions For Use & Installation page 345

BlueHelix HiTech RRT H
Connection to collective flues
C
8X
fig. 37- Examples of connection to collective flues (
Table 9- Typology
Type Description
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 draft
IMPORTANT- THE ROOM MUST BE PROVIDED WITH APPROPRIATE VENTILATION
C93 Exhaust to a vertical terminal and intake from existing flue.
If the BlueHelix HiTech RRT H 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 person-
nel in conformity with the current regulations and be suitable for sealed chamber units equipped
with fan.
Clapet non-return valve
The BlueHelix HiTech RRT H 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.
EN
C
C
93
cod. 3541V484 - Rev 00 - 07/2022
2X
C
93
= Air /
C
4X
= Fumes)
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