Ariston NIMBUS COMPACT S NET Manual page 61

INTERNAL UNIT
Preinstallation
The indoor unit FS should be positioned at a compartment as homes
in order to ensure the best performance.
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.
150 150
* x = 0 mm with hydraulic connection kit right / left
* x = 80 mm with hydraulic connection kit on top
1. Removing the front panel
To access the interior of the unit, undo the two bolts (A) on the front
panel, and pull the panel out and up.
A
x*
800
A
2. Safety valve drain
Safety valve 3 bar
Assemble the drain pipe of the safety valve, included in the pac-
kage documents.
3. Flling system
The maximum heating/cooling system pressure is 3 bar. The
maximum filling pressure is 1,2 bar.
As soon as the system is filled, disconnect it from the water
mains. Do not refill 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 sys-
tems (8 l). Make sure that the expansion vessel has a capacity ap-
propriate to the quantity of water present in the installation. Prior
to filling, make sure that the filling 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 filling 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.
Discharge
valve
61 / GB