Immergas EOLO STAR 24 4E - Hydraulic Connection Guidelines; Electrical and Accessory Installation; Electrical Connection Requirements

12
INSTALLER
USER
MAINTENANCE TECHNICIAN
TECHNICAL DATA
1.6 HYDRAULIC CONNECTION.
In order not to void the heat primary exchanger
warranty, before making the boiler connections,
carefully clean the heating system (pipes, radiators,
etc.) with special pickling or de-scaling products to
remove any deposits that could compromise correct
boiler operation.
A treatment of the heating and water system water is required,
in compliance with the technical standards in force, in order to
protect the system and the appliance from deposits (e.g. scale),
slurry or other hazardous deposits.
Hydraulic connections must be made in a rational way using the
couplings on the boiler template.
ATTENTION:
the manufacturer declines all liability
in the event of damage caused by the
installation of an automatic lling system.
In order to meet the system requirements established by EN 1717
in terms of pollution of drinking water, we recommend installing
the IMMERGAS anti-backow kit to be used upstream of the cold
water inlet connection of the boiler. We also recommend using a
category 2 heat transfer uid (ex: water + glycol) in the boiler's pri-
mary circuit (C.H. circuit), as dened in standard EN 1717.
To preserve the duration of appliance eciency fea-
tures, in the presence of water whose features can
lead to the deposit of lime scale, installation of the
“polyphosphate dispenser” kit is recommended .
3 bar safety valve.
Safety valve discharge must always be conveyed through a draining
funnel. Otherwise, the manufacturer declines any responsibility
in case of ooding if the drain valve cuts in.
1.7 ELECTRICAL CONNECTION.
e appliance has an IPX5D protection degree; electrical safety of
the appliance is achieved only when it is connected properly to an
ecient earthing system, as specied by current safety standards.
ATTENTION:
the manufacturer declines any respon-
sibility for damage or physical injury
caused by failure to connect the boiler
to an ecient earth system or failure to
comply with the reference standards.
Open the control panel connections compartment
(Fig. 5 - 6)
To carry out electrical connections, all you have to do is open the
connections compartment as follows.
Remove the casing:
1. Loosen the screw (a) at the bottom.
2. Move the control panel to the right by making it slide on the slots
(b);
3. Remove the control panel from the frame;
4. Place the control panel horizontally;
5. Insert the control panel feet into the special slots on the frame (c);
6. Move the control panel to the le in order to t it into the frame;
7. Remove the screw (d) securing the control panel cover (e);
8. Press the two hooks (g) on the cover (e);
9. Remove the cover (e) from the control panel (h);
At this point, it is possible to access the terminal board (f).
Also ensure that the electrical installation corresponds to maxi-
mum absorbed power specications as shown on the boiler data
nameplate.
e boilers are supplied complete with a “Y” type H 05 VVF
3 x 0.75 mm2 power supply cable, without plug.
ATTENTION:
e power supply cable must be con-
nected to a 230V ~ ±10% / 50Hz mains
supply respecting L-N polarity and earth
connection; this network must also have
a multi-pole circuit breaker with class III
overvoltage category in compliance with
installation regulations.
ATTENTION:
No appliance pipes must ever be used
to earth the electric system or telephone
lines.