Wolf AHU TE - Base Frame and Foundation; Foundation and Base Requirements

10
3064058_201610
AHU TE
AHUW TE
Installationinstructions
A base frame or plinth is required for air-handling units installed as weatherproof version
to support the appliances and their components.
The height of the base frame or plinth is subject to the local snow depth; however, it
should be at least 180 mm.
Subject to the prevailing wind force, secure the appliances with bolts to the base frame
or plinth (observe the transmission of structure-borne noise).
Baseframesmustbehorizontalandperpendicular;thefoundationbasemustbelevel
andhorizontal.
Weatherproofdevicesmaynotassumeanybuildingsupportfunctions
ortasksoftheroofofthebuilding(VDI38035.1/BSEN130536.2).
Thelowerbaseframemustmakefull-surfacecontactwiththebase;
padorpointcontactisnotpermissible.
Note
It is essential to ensure that the base on which the units and components are to be
assembledandinstalledislevel,horizontalandofadequateload-bearingcapacity.
Thebaseframemustbehorizontal,andthefoundationmustbelevelandhorizontal
(check with browning rod).
To prevent the inspection doors from jamming, the lower base frame must make full-
surface contact with the base; pad or point contact is not permissible.
Provideapermanentlyexiblelayerbetweentheinstallationsurfaceorfoundation/plinth
and the air-handling unit to prevent the transmission of structure-borne noise from the
appliance to the building. Preferably, this intermediate layer should take the form of
insulation strips that are positioned longitudinally underneath the appliance frame or
underneath the base frame.
Note
Baseframe/
foundationbase
AHU TE:
Strip insulation, on site
Fitted base
frame
50
Sealing tape
Baseframeprole
with drip strip
Insulation on site
On-site roof
membrane
Insulatingstriptted
on-site
Screwttedon-sitewith
sound decoupling, e.g.
neoprene washer
AHUW TE: