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AHP60-50/70 -
Installation, Use and Maintenance
3.2. Installation
The choice of the position for installation is particularly important insofar as any later movement
is a delicate operation requiring the intervention of a qualified person.
Comply with the maximum and minimum distances for the outdoor unit, the performance and
service life guarantees depend on this.
3.3. Installing the outdoor unit
3.3.1.
Installation precautions
The outdoor unit must only be installed outdoors. If a shelter is required, it must have
broad openings and comply with the installation clearances (
figure 10
).. All models of the
AHP60 series have been designed for outdoor installation (see paragraph 1.2.3 for further
details).
• Choose a site that is sheltered from strong cold predominant winds (Mistral, Tramontane, etc.).
•
The outdoor unit is made of metal elements that can be subject to corrosion when exposed to
particularly aggressive environments, especially the evaporator, which is directly exposed to an
external air flow forced by the fan. 3 particularly aggressive environments may be mentioned.
Marine environment: the marine environment is characterised by a high concentration of sodium
chloride (salt). It is transported by the sea spray in the immediate vicinity of the coasts, by the
fog, or by the sea breeze which can carry particles of salt water far from the coasts, up to several
kilometres in the continent.
Industrial environment: industries use or transform chemical elements in their processes:
cleaning or surface treatment agents, various combustions (hydrocarbons, coal, incinerations),
salting, etc. A list of corrosive elements that can be encountered in this type of environment is
provided in Table on page 27.
Rural environment: the rural environment is not free of pollution. In fact, agricultural processes
include the spreading of chemical fertilisers, and emissions of potentially aggressive pollutants
such as animal waste in livestock farms or gas emissions from agricultural machinery. A few
elements to watch for are also shown in Table on page 27.
Determining which corrosive elements are present in the environment of an installation is
a necessary preliminary step but is not sufficient to define how to protect the unit. It is also
necessary to establish if it will be directly and continuously or frequently exposed to aggressive
agents.
An observation of the climate and the surrounding terrain will help to define the main wind
directions in the area and the distance to which the sea spray or fertilisers will be transported.
A study of the configuration of the buildings is to be carried out to highlight the zones of air
recirculation, and the zones exposed to the emissions of pollutants (chimneys, nearby agricultural
fields), in particular in the case of installation on a roof. Positioning the heat pump behind a
building may be sufficient to protect it from aggressive agents.
Attention, installation behind a wall or under an alcove is not a guarantee of protection against
corrosive elements, the shelter must allow ventilation in fresh uncontaminated air to constitute
an effective protection against corrosion.
These few tips are not intended to be exhaustive when choosing a unit with or without an
anti-corrosive coating (AC).. It is impossible to define this precisely because each installation
is unique. However, by taking into account the above-mentioned elements, it is possible to
estimate whether the appliance will be installed in exposed conditions or not. If in doubt, it is
preferable to choose a unit with a protective coating in order to guarantee the longest life span
for the appliance.
• For correct operation and an optimal life span of your equipment, it is necessary to have a
quality of water that complies with the general conditions of sale.
•
The unit must be easily accessible for commissioning and maintenance work. If the
outdoor unit is installed at a height, arrangements must be made to ensure the safety of
the workers (platform with guardrail accessible via available means and in accordance
with regulations).
• Make sure that the passage of hydraulic connections is possible and easy, especially in the case
of several heat pumps.