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4.3.6
Installation in places with heavy snowfall
Snow can accumulate around and above the machine and low outside temperatures can freeze the snow in blocks of ice that
block the fan grille or the coil.
This condition may cause a malfunction or breakage of the machine.
Check and keep the machine clear of snow.
4.3.7
Installation in places with strong winds for AC fans
Installation in areas sheltered from the wind is necessary in order to prevent dominant winds and possible air recirculation from
interfering with fan operation and condensation control. For this reason, where strong winds are possible and for installations with
horizontal air flow, it is suggested to place the condensers in a partial barrier to limit direct winds on the fans. These
recommendations are not necessary with EC fans.
If it is not possible to install the condenser in an area protected from the wind, it is recommended to install it with vertical
air flow.
Machines with horizontal air flow.
Strong winds (above 50 km/h) generate very high forces on the machine structure. It is therefore necessary to counteract these
forces with anchorages suitable for the support structures (refer to the technical manual).
4.4 Machine hydraulic connections
OBLIGATION:
The execution of the hydraulic connection must be carried out by qualified personnel.
All the works, the choice of the components and the materials used must comply with the "Good
Practices", according to the regulations in force in the different countries, taking into account the
intended operating conditions and uses of the equipment.
The hydraulic connection to the water exchangers must be defined during the design stage.
Refer to the dimensional drawing of the machine for the spacing of the connections.
The in and out directions are highlighted by circular plates:
OUTLET
4.4.1
Hydraulic connection to finned coils
The water inlet and outlet pipes can be identified by the labels applied directly on the machine.
During the design phase, envisage the installation of the following components on the inlet water line.
RUa - Shut-off valves: for shutting off the supply of water to the machine during maintenance.
AV - Anti-vibration: to isolate the vibrations that can be transmitted from the system.
M - Pressure gauge (with stopcock): indicates the water pressure in the inlet line.
T - Thermometer: indicates the water temperature in the inlet line.
SA - Air vent: to eliminate air in the inlet line.
SC - Drain valve: to drain water out of the system. To be used also for connecting an external pump for chemical washing.
MF - Mains filter: (with RU tap system for filter cleaning): to trap impurities inside the system (with particle filtration degree not
less than 140 mesh = 105 microns).
Assemble the following components on the water outlet line.
RUa - Shut-off valves: for shutting off the supply of water to the machine during maintenance.
AV - Anti-vibration: to isolate the vibrations that can be transmitted from the system.
M - Pressure gauge (with stopcock): indicates the water pressure in the inlet line.
T - Thermometer: indicates the water temperature in the outlet line.
SA - Air vent: to eliminate air in the outlet line.
SC - Drain valve: to drain water out of the system. To be used also for connecting an external pump for chemical washing.
Installation, use and maintenance manual
INLET
22
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