Ferroli BlueHelix HiTech RRT 24 C Instrucciones De Uso, Instalación Y Mantenimiento página 340

stone, neutral PH stabilizers and, in low-temperature systems, specific biocides for use in
heating systems.
Recommended chemical conditioners:
SENTINEL X100 and SENTINEL X200
FERNOX F1 and FERNOX F3
The unit is equipped with a frost protection system that activates the boiler in heating mode
when the system flow water temperature falls below 6°C. The device is not active if the
power and/or gas supply to the unit is turned off. If necessary, to protect the system use a
suitable antifreeze liquid that meets the above requirements and provided for by UNI 8065.
In the presence of adequate chemical/physical system and feed water treatments and re-
lated high cyclicity controls able to ensure the required parameters, for industrial process
applications the product can be installed in open-vessel systems with vessel hydrostatic
height able to ensure compliance with the minimum operating pressure indicated in the
product technical specifications.
The presence of deposits on the boiler exchange surfaces due to non-compliance
with the above requirements will involve non-recognition of the warranty.
2.4 Gas connection
Before making the connection, ensure that the unit is
B
arranged for operation with the type of fuel available.
The gas connection must be made to the relevant con-
nection (see fig. 75) in compliance with current legis-
lation, using a rigid metal pipe or a continuous wall
flexible hose in stainless steel, placing a gas valve be-
tween the system and boiler. Make sure all the gas
connections are tight. Otherwise there may be a risk
of fire, explosion or suffocation.
2.5 Electrical connections
ATTENTION
BEFORE CARRYING OUT ANY OPERATION REQUIR-
B
ING REMOVAL OF THE CASING, DISCONNECT THE
BOILER FROM THE ELECTRIC MAINS WITH THE
MAIN SWITCH.
NEVER TOUCH THE ELECTRICAL COMPONENTS OR
CONTACTS WITH THE MAIN SWITCH TURNED ON!
DANGER OF ELECTRIC SHOCK WITH RISK OF INJU-
RY OR DEATH!
The unit must be connected to an efficient grounding sys-
B
tem in accordance with applicable safety regulations.
Have the efficiency and suitability of the grounding system
checked by professionally qualified personnel; the Manu-
340
BlueHelix HiTech RRT C
cod. 3541V304 - Rev. 00 - 03/2024
EN