(The drawing shows only the 8 fans version. For the 10-12 fans version the lifting mode is the same)
For installation on the ground, a strong concrete base, at least
250 mm thickness and wider than the unit must be provided.
This base must be able to support the weight of the unit.
If the unit is installed in places that are easily accessible to
people and animals, it is advisable to install protection grids for
the condenser and compressor sections.
To ensure best performance on the installation site, the
following precautions and instructions must be followed:
Avoid air flow recirculation.
Make sure that there are no obstacles to hamper air flow.
Make sure to provide a strong and solid foundation to
reduce noise and vibrations.
Avoid installation in particularly dusty environments, in
order to reduce soiling of condensers coils.
The water in the system must be particularly clean and all
traces of oil and rust must be removed. A mechanical
water filter must be installed on the unit's inlet piping.
Minimum space requirements
It is fundamental to respect minimum distances on all units in
order to ensure optimum ventilation to the condenser coils.
When deciding where to position the unit and to ensure a
proper air flow, the following factors must be taken into
consideration:
avoid any warm air recirculation
avoid insufficient air supply to the air-cooled condenser.
Both these conditions can cause an increase of condensing
pressure, which leads to a reduction in energy efficiency and
refrigerating capacity.
Any side of the unit must be accessible for post-installation
maintenance operations. Figure 4 shows the minimum space
required.
Vertical air discharge must not be obstructed.
If the unit is surrounded by walls or obstacles of the same
height as the unit, this must be installed at a distance no lower
than (see Figure 4C or 4D). If these obstacles are higher, the
unit must be installed at a distance no lower (see Figure 4E or
4F).
Should the unit be installed without observing the
recommended minimum distances from walls and/or vertical
obstacles, there could be a combination of warm air
recirculation and/or insufficient supply to the air-cooled
condenser which could cause a reduction of capacity and
efficiency.
In any case, the microprocessor will allow the unit to adapt
itself to new operating conditions and deliver the maximum
available capacity under any given circumstances, even if the
lateral distance is lower than recommended, unless the
operating conditions should affect personel safety or unit
reliability.
When two or more units are positioned side by side, a distance
of at least (see Figure 4G or 4H) between condenser banks is
recommended.
For further solutions, please consult manufacturer
representative.
Sound protection
When sound levels require special control, great care must be
exercised to isolate the unit from its base by appropriately
applying anti-vibration elements (supplied as an option).
Flexible joints must be installed on the water connections, as
well.
Water piping
Piping must be designed with the lowest number of elbows
and the lowest number of vertical changes of direction. In this
way, installation costs are reduced considerably and system
performance is improved.
The water system must have:
1. Anti-vibration mountings in order to reduce transmission of
2. Isolating valves to isolate the unit from the water system
3. Manual or automatic air venting device at the system's
4. Neither the evaporator nor the heat recovery device must
5. A suitable device that can maintain the water system under
6. Water temperature and pressure indicators to assist the
Figure 4 - Minimum clearance requirements
vibrations to the structures.
during service.
highest point.; drain device at the system's lowest point.
be positioned at the system's highest point.
pressure (expansion tank, etc.).
operator during service and maintenance.
D-EIMAC00808-16EU - 14