Denco CAIRplus Operation Manual page 26

Assembly
5.1.4 Foundation requirements for outdoor installation (weatherproof, roof frame)
26
Notice!
Units for outdoor installation are not roof substitutes!
It is not allowed to use weatherproof units as supporting surfaces of a building or
similar roof substitutes in accordance with prEN 13053 and VDI 3803.
•
Refer to valid instructions on "Foundation requirements for indoor installation" on
page 25.
•
Select an installation site with outdoor air intake not facing the main wind direction.
•
If the unit is mounted on a roof, the latter must support the total weight of the unit,
verify that the supporting structure is adequate for the unit. Consult a structural
engineer, if necessary.
•
The roof edge below the unit, as well as ducts and other roof openings must be
sealed by others on site to prevent water and air leakage.
•
Ensure that the field-provided roof frame is sealed to prevent condensation. For
notes refer to "Preparing roof installation" on page 33.
•
In areas with heavy snowfall, ensure that the unit is installed at a location where
snow can not affect the unit operation. Provide for an adequate foundation with an
appropriate height.
Fig. 5-6: Foundation design with concrete
base
Fig. 5-8: Foundation design with field-provided steel support
Notice!
•
Pay particular attention to ensure the exact size of the roof openings and level
foundation.
Fig. 5-7: Foundation design with field-pro-
vided steel beam
PR-2009-0096-GB • Subject to modifications • R8-10/2015
CAIRplus