Issue 07/2011
Page 44
Bu
ilt
-in g
en
er
at
or
s w
ith s
w
itch c
ab
in
et f
or p
er
m
an
en
tly i
ns
ta
lle
d p
ow
er g
en
er
at
io
n s
ys
te
m
s ≥ 1
2 k
VA i
n fi
re e
ng
in
es
Installation of generator
Installation of generators of model 160
3.6.3
Temperature and pressures of the cooling air
Important
y
A cooling air feed above 40 °C can lead to power restrictions;
in extreme cases it can cause damage to the generator.
►
The temperature of the supplied cooling air should not
exceed 40 °C.
y
A maximum underpressure of P
max
= 4 Pa is
allowed in the suction path of the cooling air,
otherwise, a sufficient quantity of cooling air
cannot be drawn in.
y
In the blow-out area of the cooling air on
the front side, a maximum overpressure of
P
max
= 7 Pa may arise as otherwise there will
not be sufficient circulation of the cooling air.
Important
►
Do not impair the circulation of
the cooling air with other air flows
(e.g. from the front or from the side).
P
max
= 7 Pa
P
max
= 4 Pa
b
c
Содержание DWG (BL) 13/7-2 ZE
Страница 87: ...Page 87 Issue 07 2011...