Miele DA 8-2 Operating Instructions Manual page 18

Exhaust connections
Exhaust connections
Calculation of exhaust ducting
A pipe diameter of 5" should ensure
trouble-free extraction up to a total pipe
length of 5.4. meters (17 1/2 ft).
Determine the total pipe length as fol-
lows:
Measure the total length of ducting
needed.
Add the length of additional ducting
to this figure according to the num-
ber and type of bends (see table
below).
Note
If the exhaust ducting will run through
rooms, ceiling space etc. where there
may be variations in temperature the
problem of sweating or condensation
will have to be addressed.
The exhaust ducting may need to be in-
sulated.
Type of bend
Flexible pipe
Wall vent
18
Angle Radius of
of bend bend
(in mm)
45° 120
90° 120
Example
Wall vent (1)
Flexible
90° bend (2)
Flexible pipe (3)
Flexible
45° bend (4)
Total pipe length
With a total pipe length of 8
(102'') the exhaust is within the effec-
tive range.
Air flow rates:
- Setting 1
- Setting 2
Radius of Effective
bend pipe length
(in inches) (in meters)
4 3/4
4 3/4
1.1 m 43''
0.3 m 12''
1.0 m 39''
0.2 m 8''
1
2.6 m 8 /
1
/ ft.
2
3
240 m /h (145 CFM)
3
465 m /h (275 CFM)
Effective
pipe length
(in inches)
0.2 8''
0.3 12''
1.0 39''
''
2