Immergas Maior Eolo 24 4E - Page 6

6
1-2
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.3 ANTIFREEZE PROTECTION.
Minimum temperature -5°C. e boiler is sup-
plied with an antifreeze function as standard that
activates the pump and burner when the system
water temperature in the boiler falls below 4°C.
e anti-freeze function is only guaranteed if:
- the boiler is correctly connected to gas and
electricity power supply circuits;
- the boiler is powered constantly;
- the boiler is not in “O” mode;
- the boiler is not in no ignition block (Par.2.5);
- the boiler essential components are not faulty.
In these conditions the boiler is protected against
freezing to an environmental temperature of -5°C.
Minimum temperature -15°C. If the boiler is
installed in a place where the temperature falls
below -5°C, and in the event there is no gas (or
the boiler goes into ignition block), the appliance
can freeze.
To prevent the risk of freezing follow the instruc-
tions below:
- Protect the heating circuit from freezing by
adding a high quality anti-freeze liquid that is
not considered a health hazard. It is necessary
to carefully follow manufacturer instructions
regarding this liquid when considering the
percentage necessary that depends on the mini-
mum temperature the system is to be protected
from. An aqueous solution must be prepared
with a potential water pollution potential of 2
(EN 1717:2002).
e materials that Immergas boilers are made
from are resistant to ethylene and propylene glycol-
based anti-freeze liquids (If the mixtures have been
prepared according to industry standards).
For life and possible disposal, follow the supplier’s
instructions.
- Protect the domestic hot water circuit against
freezing by using an accessory that is supplied
on request (anti-freeze kit) comprising two
electric heating elements, the relevant cables
and a control thermostat (carefully read the
installation instructions contained in the ac-
cessory kit pack).
Boiler anti-freeze protection is thus ensured only if:
- the boiler is correctly connected to electricity
power supply circuits;
- main switch is inserted;
- the anti-freeze kit components are ecient.
In these conditions the boiler is protected against
freezing to temperature of -15°C.
e warranty does not cover damage due to inter-
ruption of the electrical power supply and failure
to comply with that stated on the previous page.
N.B.: if the boiler is installed in places where
the temperature falls below 0°C, the heating
attachment pipes must be insulated.
1.2 MAIN DIMENSIONS.
Height
(mm)
Width
(mm)
Depth
(mm)
781 440 340
CONNECTIONS
GAS
DOMESTIC
HOT WATER
SYSTEM
G AC AF R M
3/4” 1/2” 1/2” 3/4” 3/4”
Key:
G - Gas supply
AC - Domestic hot water outlet
ACV - Solar valve kit DHW inlet
(Optional)
AF - Domestic cold water inlet
R - System return
M - System ow
V - Electrical connection
N.B.: connection group (optional)