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© STULZ S.p.A. – all rights reserved EN/06.2016/i09
WSA ExplOrEr OriginAl inStructiOnS
6. installation
6.1 positioning
inFOrMAtiOn
Respect the relevant requirements for installation according to national regulations and EN
378.
Check that the installation site is appropriated for the unit weight, which you can read in the
technical data in “5.5 Technical Data” at page 41. The chiller unit is designed for indoor instal-
lation on a horizontal level base. For an even weight distribution, a base plate made of concrete
is necessary.
• The unit should not be placed, related to the wind direction, behind heat emitting devices
(e.g. chimneys) or sources of dirt and airborne chemicals (e.g. exhalation outlet hoods). Greasy
and floating particles contained in the air are otherwise deposited at the condenser fins and
reduce the heat transmission.
• Installation sites, which are subject to heavy snow-drifts, are unsuitable in the same way as
sites where inundations can take place and a high sun exposure is present.
• For locations where outer influences might affect the airflow, an enclosure or louvre is recom-
mended. Please consider negative impacts on the airflow by near obstacles.
• Further make sure that the site does not encourage a short-circuit of air from the air discharge
to the condenser intake by aerodynamically disadvantageous conditions.
• If the unit is installed near walls or vertical obstacles, please make sure these do not exceed
the maximum height of 1.10 m.
• When selecting the installation site take into account the necessary clearances for the mainte-
nance and the air flow. Keep a clearance of 1.0 m to the back of the unit, 1.3 m to the left and
right side and at least 1.35 m to the electrical cabinet.
• Above the fans a clearance of 5 m is required.
• If the unit is positioned in an area which is accessible to unauthorized persons, it is recom-
mended to take steps for preventing vandalism and accidental damage.
• To avoid possible noise and vibration transmission the use of anti vibration mounts (option) is
recommended.
After installing the chiller check its horizontal alignment using a spirit level.
