Ochsner AIR HAWK 518, Design And Installation Manual

Page: 24 / 60

24 www.ochsner.com | 00_200_202_02_01_002-EN
Machine-specific engineering and preparation
Note
If the installation area is too small, one of the fol-
lowing measures must be taken:
»
Enlarge the installation area by creating a net-
work of rooms.
»
Route the refrigerant safety pipe to the out-
side.
WARNING
Do not block door gaps and ventilation openings
used to enlarge the space.
8.4 Refrigerant safety pipe
8.4.1 Routing the refrigerant safety pipe to the outside
If the refrigerant safety pipe is routed to the outside, rele-
vant requirements must be met:
»
Ensure that there are no ignition sources within a
0.5 m radius of the discharge opening of the refriger-
ant safety pipe.
1 Heat pump
2 Refrigerant safety pipe
3 External wall
4 Ground level
A 0.5 m around the discharge opening
Note
Ignition sources also include the following:
- Surfaces with temperatures over 500°C
- Electrical equipment without approval for zone
2, 1 or 0 to IEC 60079
»
Take the prevailing groundwater situation into account
when positioning the discharge opening. Ensure that
no water can enter the discharge opening even in the
event of flooding or due to other local conditions.
1 Heat pump
2 Refrigerant safety pipe
3 External wall
4 Ground level
A Height dependent on local conditions (e.g. flooding)
Wall conduit
Whether the refrigerant safety pipe is to be routed above
or below ground, appropriate and system-specific wall con -
duits need to be created through the external wall of the
building.
»
Ensure that the wall conduit is installed in an appro-
priate, plant-specific position layout.
»
Take the construction of the wall (tiles, concrete) into
account.
»
Take the prevailing groundwater situation into
account.
Material damage
Inadequate wall conduits can cause significant
damage to property, due to water penetrating the
building or stonework (seepage, condensation,
flood water). With wall conduits created below
ground level, the breach must be appropriate to
local conditions at the site (e.g. non-accumulating
or accumulating seepage water, groundwater un-
der pressure).
»
Integrate the external end of the wall conduit
into the external waterproof seal of the build-
ing.
»
Ensure that the refrigerant safety pipe is ar-
ranged with a slight fall (at least 2%) to the
outside.
8.5 Preparing the electrical connections
WARNING: Electrocution
All electrical connection and installation work must
be carried out according to the applicable national
and regional regulations.