Viessmann H32E, Инструкция по установке и обслуживанию, Страница: 65 / 80

65
Nominal diameter DN 125
Fig. 97
A Closed
B Half open
C
Open
Pressure drop and flow noise with supply air and
extract air fascia
7
171
170
Fig. 98 Supply air and extract air fascia for wall/ceil-
ing air vent
Supply air mode
A
B
C
D
E
F
Pressure drop
in Pa
Flow rate in m³/h
15 30 60
40
20
10
5
Fig. 99
Extract air mode
A
B
C
D
E
F
Pressure drop
in Pa
Flow rate in m³/h
3
5
10
20
40
80
15 30 60
Fig. 100
A
to
C
Pressure drop curves for vent positions:
A
Closed
B
Half open
C
Open
D to F
Flow noise:
D
25 dB(A)
E 30 dB(A)
F 35 dB(A)
Commissioning, inspection, maintenance
Presetting supply air and extract air apertures
(cont.)
5831646