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Beschikbare talen
Beschikbare talen
INTERNAL UNIT
Cleaning the heating system
At the fi rst installation, it is necessary to pre-clean the installation.
In order to ensure the proper functioning of the appliance, after
each cleaning operation, water substitution or addition of glycol,
verify that the appearance of the liquid system is clear, without
visible impurities and that the water hardness is under 20 °C.
Installazione preliminare
L'unità interna MGP deve essere posizionata presso un vano con
funzione abitativa al fi ne di garantire le migliori prestazioni.
Per il posizionamento del sistema utilizzate la dima fornita e una
livella.
Minimum clearance
In order to allow the proper maintenance of the appliance, you
must observe the minimum clearances for installation as shown in
the fi gures below. To position the unit properly, use the template
provided and a spirit level.
50
1. Fitting the tray and removing the front panel
Remove the three screws (fi g.1) and remove the condensation
tray. Push the front frame up and in (fi g.2).
2
(Fig. 1)
(Fig. 2)
50
500
1
Attention
In order to avoid contamination between the fi lling water of
the installation and the sanitary water and to avoid an inop-
portune fi lling of the installation and the resulting corrosion
of system components, it is advisable to install a two taps-
backfl ow preventer (upstream and downstream).
2. Safety valve drain
3. Flling system
The maximum heating/cooling system pressure is 3 bar. The maxi-
mum fi lling pressure is 1 bar.
As soon as the system is fi lled, disconnect it from the water mains.
Do not refi ll the system frequently (multiple times a month) as this
can result in corrosion.
Expansion vessel
The system is equipped with an expansion vessel for heating systems
(8 l). Make sure that the expansion vessel has a capacity appropriate
to the quantity of water present in the installation. Prior to fi lling,
make sure that the fi lling pressure is equal to 1 bar.
4. Preparing for startup of the heating/cooling system
Open the heating/cooling system delivery/return cocks.
Open the heating circuit fi lling cocks.
Close the cocks as soon as the pressure gauge indicates the desired
pressure.
Bleed the system, restore the pressure and check that all gaskets are
tight.
air purge valve
/ 51
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