Ferroli BLUEHELIX TECH RRT 30 H Instrucciones De Uso página 164

Plumbing kit (optional)
A kit of fittings (code 012044W0) for the hydraulic con-
nection of the boiler to the wall is available on request.
7 - Gas inlet
9 - Tap water inlet
10 - System delivery
11 - System return
Antifreeze system, antifreeze fluids, additives and inhibitors
When necessary, antifreeze fluids, additives and inhibitors can be used only if the manufacturer of such fluids or addi-
tives guarantees that they are suitable and do not cause damage to the exchanger or other components and/or mate-
rials of the boiler and system. Do not use generic antifreeze fluids, additives or inhibitors that are not specific for use in
heating systems and compatible with the materials of the boiler and system.
System water characteristics
BLUEHELIX TECH RRT 30 H boilers are suitable for installation in heating syste-
B
ms with non-significant entry of oxygen (ref. systems "case I" EN14868). A physi-
cal separator (e.g. plate heat exchanger) must be provided in systems with
continuous entry of oxygen (e.g. underfloor systems without antidiffusion pipes or
open vessel), or intermittent (less than 20% of system water content).
The water within a heating system must have the characteristics required by UNI
8065, and comply with laws and regulations in force and the provisions of
EN14868 (protection of metallic materials against corrosion).
The filling water (first filling and subsequent replenishment) must be clear, with har-
dness below 15°F and treated with suitable chemical conditioners against the ini-
tiation of corrosion, that are not aggressive on metals and plastics, do not develop
gases and, in low-temperature systems, do not cause proliferation of bacterial or
microbial masses.
The water in the system must be periodically checked (at least twice a year during
the season when the systems are used, as required by UNI8065) and have: pos-
sibly a clear appearance, hardness below 15°F for new systems or 20°F for exis-
ting systems, pH above 7 and below 8.5, iron content (Fe) below 0.5 mg/l, copper
content (Cu) below 0.1 mg/l, chloride content below 50mg/l, electrical conductivity
below 200 µs/cm, and must contain chemical conditioners in a concentration suffi-
cient to protect the system for at least one year. Bacterial or microbial loads must
not be present in low temperature systems.
Only use conditioners, additives, inhibitors and antifreeze liquids declared by the
producer suitable for use in heating systems and that do not cause damage to the
heat exchanger or other components and/or materials of the boiler and system.
Chemical conditioners must ensure complete deoxygenation of the water, contain
specific protection for yellow metals (copper and its alloys), anti-fouling agents for
scale, neutral pH stabilizers and, in low-temperature systems, specific biocides for
use in heating systems.
164
BLUEHELIX TECH RRT 30 H
10
cod. 3541C672 - Rev. 00 - 09/2020
7
9
11
fig. 18- Plumbing kit
EN