Technical data

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5 HYDRAULIC INSTALLATION
In this section you will find all the instructions necessary for installing the appliance from
a hydraulic viewpoint. The hydraulic system installation technician must consult the elec-
trical system installation technician in order to decide upon the correct sequence of the
operations to be carried out.
Before realizing hydraulic system and gas supply for the appliance, the professionally
qualified personnel is advised to read Paragraph 3.1 GENERAL INFORMATION → 8, pro-
viding important recommendations about safety and references to current regulations.
5.1 GENERAL INSTALLATION PRINCIPLES
Prior to installation, carry out careful internal cleaning of all pipes and every other com-
ponent to be used both on the hydraulic system and on the fuel supply, in order to re-
move any debris that may compromise the operation of the appliance.
Installation of the appliance must be carried out in compliance with current regulations
regarding design, installation and maintenance of heating and cooling plants and must
be undertaken by professionally qualified personnel in accordance with the manufac-
turer’s instructions.
During the installation stage, observe the following indications:
Check that there is an adequate mains gas supply, in accordance with the manu-•
facturer’s specifications; see Table 5.2 Network gas pressure → 31 for the correct
supply pressures.
The appliance must be installed inside the building in a suitable room (see EN378). •
The machine room must be protected from freezing.
• The appliance is not designed for outdoors installation. The appliance must
not be exposed to rain and must be installed in a ventilated location in line
with the safety and installation standards applicable to this type of device.
ONLY the outdoor version (see Figure 3.2 Outdoor unit dimensions • → 16) can be
installed outdoor and does not need any specific protection against the weather
and against freezing.
The front of the appliance must be at least 80 cm away from walls or other fixed •
constructions; the right and left sides must have a minimum clearance of 45 cm;
the minimum rear clearance from walls is 20 cm (see Figure 5.2 Clearances → 28).
The appliance must be installed in such a way that the exhaust flue gas outlet is •
not in proximity of any external air inlet of a building. Respect current regulations
regarding the exhaust flue gas outlet.
Fit a gas cock on the gas supply line.•
Fit antivibration joints on the hydraulic connections.•
5.2 POSITION OF THE APPLIANCE
Lifting the appliance and placing it in position
Do not remove packaging during handling on the installation site.
Packing must only be removed upon final installation.
If the appliance has to be lifted, pass slings into the openings in the base supports and
use spreader bars to prevent the slings from damaging the casing during handling (see
Figure 5.1 Lift GS/WS → 27).