Atlantic alfea extensa + - 2.5 Installing the hydraulic unit

2.5 Installing the hydraulic unit
2.5.1 Installation precautions
• Choose the location of the appliance after discussion
with the client.
• The room in which the appliance operates must
comply with the prevailing regulations.
• To facilitate maintenance and to allow access to the
various components, we recommend that you provide
sufcient space all around the hydraulic unit.
350 mm
mini
1000 mm
300 mm
mini
• According to standard EN 378-1 (safety
requirements and HP environment), the room
where the HP is installed shall have a volume
higher than: Unit refrigerant load in kg / 0.44kg/m
3
.
If not, it must be ensured that:
- Whether the room is mechanically ventilated,
- Or room door is remain opened when the installer
works on the HP.
• Be careful not to bring inammable gas near to the
heat pump during its installation, in particular when
it requires brazing. The appliances are not reproof
and should therefore not be installed in a potentially
explosive atmosphere.
- To avoid condensation inside the condenser, remove
the refrigerant circuit caps only when completing the
refrigerant connections.
- If the refrigerant connection only occurs at the end of
the installation, be sure that the refrigerant circuit caps*
remain in place and tight throughout the installation
duration.
* (Hydraulic unit side and outdoor unit side).
- After every intervention on the refrigeration circuit and
before nal connection, take care to replace the plugs
in order to avoid any pollution from the refrigeration
circuit (The sealing with tape is prohibited).
(S)
1
2
118 mm
(S)
538 mm
mini
418 mm
mini
300 mm
mini
350 mm
mini
188 mm
gure 18 - Mounting bracket
2.5.2 Positioning the hydraulic unit
- Fix the support solidly (4 screws and plugs) to a at,
hard-wearing wall (not a light partition) ensuring that it
is correctly levelled.
- Hook the appliance onto its support.
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 18 -