8
1-5
1-4
EXTERNAL RELAY
(OPTIONAL)
230 Vac
50Hz
230 Vac COIL
MAX 0.1 A
ALARM
FREE CONTACTS
MAX 1 A. 230 Vac
External reset
230 Vac
ANALOGUE
INPUT
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
Attention:
Immergas and Hunt Heating declines
all liability in the event of damage caused by the
inclusion of automatic filling.
In order to meet the system requirements es-
tablished by EN 1717 and in observance of local
technical regulations in force on the pollution
of drinking water, we recommend installing
an anti-backflow kit to be used upstream of
the cold water inlet connection of the boiler.
We also recommend using a category 1, 2 or
3 heat transfer fluid (ex: water + glycol) in the
boiler’s primary circuit (CH circuit), as defined
in standard EN 1717.
Attention:
to preserve the duration of appliance
efficiency features, we recommend the installation
of a suitable device for water treatment in presence
of water whose characteristics can lead to the
deposit of lime scale.
Condensate drain.
To drain the condensate
produced by the appliance, it is necessary to
connect to the drainage system by means of
acid condensate resistant pipes, with an internal
Ø of at least 13 mm. The system connecting the
appliance to the drainage system must be carried
out in such a way as to prevent freezing of the
liquid contained in it. Before appliance ignition,
ensure that the condensate can be correctly
removed.
N.B.:
pre-fill the condense trap with
water before operating the boiler.
Also, comply with national and local regulations
on discharging waste waters. In the event con-
densate is not discharged into the wastewater
drainage system, a condensate neutraliser must
be installed to ensure compliance with the pa-
rameters established by the legislation in force.
1.9 ELECTRIC CONNECTION.
The operations described below must be performed
after having disconnected the electrical supply from
the appliance.
The electrical system must be built in compliance
with technical standards and all legislation in
force. The boiler has an IPX5D protection rating
for the entire appliance. Electrical safety of the
appliance is reached only when it is correctly
connected to an efficient earthing system as
specified by current safety standards.
Attention:
Immergas S.p.A. and Hunt Heating
decline any responsibility for damage or physical
injury caused by failure to connect the boiler to
an efficient earth system or failure to comply with
the reference standards.
Also ensure that the electrical installation corre-
sponds to maximum absorbed power specifica-
tions as shown on the boiler data-plate.
Boilers are supplied complete with a power
cable and Australian plug type 1 conforming
to AS3112. The power supply cable must be
connected to a 230V ±10% / 50Hz mains supply
respecting L-N polarity and earth connection;
, this network must also have a multi-pole cir-
cuit breaker with class III over-voltage category.
The main switch must be installed outside
the rooms in a position that is indicated and
accessible.
When replacing the power supply cable, contact a
qualified company.
The power cable must be laid as shown (Fig. 1-4).
In the event of mains fuse replacement on the
connection terminal board, use a 3.15A fast fuse.
For the main power supply to the appliance,
never use adapters, multiple sockets or exten-
sion leads.
Important:
if the Digital Remote Control is
used, arrange two separate lines in compliance
with current regulations regarding electrical sys-
tems. No boiler pipes must ever be used to earth
the electric system or telephone lines. Ensure
elimination of this risk before making the boiler
electrical connections.
•
Installation with system operating at direct
low temperature.
The boiler can directly
supply a low temperature system, limiting the
value of the “P02” parameter, which defines the
generator’s flow temperature.
Attention:
during the chimney sweep function,
the flow temperature is not limited by the
“P02” parameter but instead by the maximum
allowable temperature (97°C).
To avoid the risk of exceeding the optimal tem-
perature of operation in low temperature, due
to external causes (e.g.: incorrect adjustment,
prolonged system stop, etc.), you must insert
in series with the supply voltage of the boiler,
a special safety kit (optional) consisting of a
thermostat (with adjustable temperature, de-
pending on the characteristics of the system).
The thermostat must be positioned on the
system flow pipe at a distance of more than 2
metres from the boiler.
Attention:
in figure 4 is described the standard
electrical connection with the pump connected
to the terminals “Q” and “P”; in this way the
external pump is fed making it run in parallel
to the boiler pump. For specific installations
refer to paragraphs 3.18 to 3.21.
Supply
cable
