Comply with the applicable stan-
dards and laws on boiler instal-
lation, which are considered an
integral part of this handbook.
A bipolar switch must be fitted
upstream of the boiler so that
maintenance operations can be
carried out safely.
The boiler mains supply must be
protected by a differential magne-
tothermal switch with appropriate
breaking power.
The mains power supply must be
properly earthed. This basic safety
requirement is mandatory.
In case of doubt, have the wiring
thoroughly checked by a professio-
nally qualified electrician.
The Manufacturer declines all
liability for damage or injury
resulting from failure to earth
the system properly. Gas, hot
water or heating system piping
is not suitable for earthing.
3.2.11 Hydraulic connections
Before installing the boiler, it is
important to clean the system
thoroughly. This is to remove all
impurities and particles from the
components, which could damage
the pump or heat exchanger.
The heating system delivery and
return pipes must be connected to
the relevant G1 1/4” fittings on
the boiler.
When choosing the size of the
pipes for the heating system, it is
important to take account of load
losses caused by radiators, any
thermostat valves, radiator stop
valves and the actual configuration
of the system.
3.2.12 Manufacturer original
kits
The Manufacturer supplies origi-
nal kits for installing the timer, the
remote boiler control board and
the temperature control.
These kits must be installed fol-
lowing the accompanying instruc-
tions.
3.3 Filling the system
After completion of all the system
connections, the heating circuit
can be filled with water.
This must be done with care as
follows:
- Open the radiator air vents
and check the relief valve on the
hydraulic system.
- Gradually open the water inlet
tap and check that the relief valves
in the system, if there are any, are
working properly.
- Close the radiator air vents as
soon as water starts to come out.
- Check on the pressure gauge
installed on the hydraulic system
that the value is 0.8-1 bar.
- Turn off the water inlet tap and
then release the air again through
the radiator air vents.
- After switching on the boiler and
after the system has reached
the correct temperature, stop the
pump and repeat the air relief ope-
rations.
- Allow the system to cool down
and then set the water pressure to
0.8-1 bar.
WARNING
In domestic heating systems, it is
essential to treat the water using
specific products that are compa-
tible with multimetal systems. This
is to optimise efficiency and safety,
keep the system in good working
order, ensure that ancillary equi-
pment continues to function effi-
ciently, and minimise energy con-
sumption in line with current legal
requirements.
NOTE: The boiler is equipped
with a drain cock, located in
the front, which can be used for
emptying the system (pic. 6).
3.4 Starting up the boiler
3.4.1 Preliminary checks
Before starting up the boiler, it is
good practice to carry out the fol-
lowing checks.
- Make sure the flue gas pipe has
been installed according to the
instructions. When the boiler is
running there must be no leaka-
ge of combustion products from
any of the seals.
- The supply voltage must be 230
V- 50 Hz.
- The system must be full of water
(hydrometer pressare 0.8-1 bar).
- The cut-off valves on the system
pipes must be open.
- The fuel supply cock must by
open.
- Check for any oil or gas leaks.
- Check that the main switch has
been turned on.
- Check the boiler safety valve.
- Check for water leaks.
3.4.2 Switching on and off
Refer to the "User Instructions"
for switching the boiler on and off.
3.4.3 Regulating thermal output
The burner thermal power must be
regulated according to the boiler
and heating system specifications.
12
pic. 7
