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WH45P
WH45P
SPECIFICATIoN TExT
9.
SPECIFICATIoN TExT
9.1.
Series WH45P circular fire damper
Description
WH45P circular fire damper tested for fire resistance and
smoke seal with 500 Pa depression (300 Pa for Weichschott
sealing installations) as per EN 1366-2, classified according
to EN 13501-3 and CE marked according to European Re-
gulation UE 305/2011 and EN 15650 standard.
Allows maximum safety for fire protection inside buildings
providing perfect heat insulation and cold and hot smokes
tightness. Can be connected to fire protection alarm sy-
stem or smokes detection to anticipate blade closure be-
fore fire, prevents indirect damages caused by smokes ge-
nerated by combustion.
Technical characteristics
• Available diameters from 200 to 800 mm
• Case made from galvanized sheet steel, with a total len-
gth of 620 mm in 2 parts joined with bolts and mineral
fiber sealing
• Closing mechanism built according to UNI 10365, with
thermal fuse certified to ISo 10294-4, a test button to
check the correct working of the damper, a release sy-
stem to block the damper in closed position and a visual
signal "open/closed". The closing mechanism can be ea-
sily interchanged and substituted:
– with mechanical release and manual rearming
– with mechanical release and manual rearming, can be
released remotely via a magnet and electric and signal
– with electric release and rearming, via and integrated
Siemens or belimo system tested according to EN
15650, composed by an electric thermal fuse and re-
mote controlled servomotor via an electrical signal
• blade damper made from calcium silicate material, com-
plete with elastomer lip gasket for the air seal of cold
smoke, as per EN 1366-2
• blade axis made of steel, patented fixing on casing, with
low friction bearings for high reliability in case of fire.
• Thermal, expanding graphite gasket
• Thermal fuse with melting point certified ISo 10294-4 at
70 °C or 95 °C (version with mechanical release) or at 72
°C (version with servo motor)
• Absence of thermal bridge between the wall of installa-
tion and the ducts before and after
• Resistance to salt spray, tested with severity 2, according
to EN 60068-2-52
• Casing leakage class C for diameter bigger than 315 mm
as per EN 1751.
• Casing leakage class b minimum for diameter less than
or equal to 315 mm as per EN 1751 (class C on request).
Installation
• Installation within vertical rigid walls made from aerated
concrete blocks, standard concrete or masonry:
with a minimum thickness of 150 mm and minimum
density of 500 kg/m³ and mortar sealing (EI 180 S)
with a minimum thickness 100 mm and density 500 kg/
m³ and mortar or plaster putty sealing (EI 120 S)
with a minimum thickness 100 mm and density 500 kg/
m³ and plasterboard and rockwool sealing (EI 90 S)
• Installation within light plasterboard walls with mini-
mum thickness of 100 mm and sealed with mortar or
plaster putty (EI 120 S) or rock wool (EI 90 S)
• Installation within light walls made with gypsum blocks
100 mm thick and minimum density 995 kg/m³ (EI 120 S)
or minimum thickness of 70 mm and minimum density
995 kg/m³ (EI 90 S)
• Installation within concrete floors with a minimum thi-
ckness of 150 mm and minimum denisty of 2200 kg/m³
(EI 180 S) or aerated concrete with minimum thickness
150 mm and minimum density 650 kg/m³ (EI 120 S) or
aerated concrete with minimum thickness 100 mm and
minimum density 650 kg/m³ (EI 90 S)
• Installation with Fire batt (Weichschott) sealing within
vertical rigid walls made from aerated concrete blocks,
standard concrete or masonry with minimum thickness
100 mm and minimum density 500 kg/m³, within light
plasterboard walls with minimum thickness of 100 mm,
within gypsum blocks light walls with with minimum
thickness 100 mm and minimum density 995 kg/m³ (EI
120 S)
• Installation with Fire batt (Weichschott) sealing within
concrete floors or aerated concrete with minimum thi-
ckness 150 mm and minimum density 650 kg/m³ (EI 90 S)
• Fire resistance characteristics independent from di-
rection of the source of the fire according to EN 1366-2
article 6.2
• Installation possible with damper blade placed horizon-
tally or vertically, with the mechanism placed in left/right
or above/below
Accessories
• Motorised version with 24 v or 230 v servomotor instal-
led on the damper
• Set of microswitches with four No/NC position detecting
connectors for open and closed damper, as per standard
UNI 10365
• Immission and interruption magnet 24 v DC or 230 v AC
with rectifier
• Power supply and communication unit LonWorks, MP-
bus, Modbus, bacnet
We reserve the right to make changes without prior notice
rev 20-10
37
37/42
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