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The unit must be lifted with the utmost attention and care
following lifting label instructions; lift unit very slowly, keeping it
perfectly level..
Positioning and assembly
All units are designed for installation outdoors, either on
balconies or on the ground, provided that the installation area
2 compressors unit
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 uni 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 3 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
is free of obstacles that could reduce air flow to the
condensers coil.
The unit must be installed on a robust and perfectly level
foundation; should the unit be installed on balconies or roofs, it
might be necessary to use weight distribution beams.
Figure 3 - Lifting the unit
than 2500 mm. If these obstacles are higher, the unit must be
installed at a distance no lower than 3000 mm.
Should
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
recommended.
For
further
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 should have:
1. Anti-vibration mountings in order to reduce transmission of
vibrations to the structures.
2. Isolating valves to isolate the unit from the water system
during maintenance.
3. Flow switch.
3 compressors unit
unit
be
installed
without
3600 mm between condenser banks
solutions,
please
consult
D - EIMAC00607-11EU - 11/156
observing
the
is
manufacturer
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