Substitute Duct Lengths; Maximum Permissible Total Ducting Length - Miele PDR 914 Operating And Installation Instructions
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Also See for PDR 914:
- Quick start manual (144 pages) ,
- Operating and installation instructions (56 pages) ,
- Operating and installation instructions (52 pages)
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Installation
Substitute duct
lengths
Maximum permis-
sible total ducting
length
52
Type of
Type
elbow
90° elbow
45° elbow
90° elbow
45° elbow
90° concertina
duct elbow
45° concertina
duct elbow
90° segmented el-
bow
(3 welded seams)
90° elbow, West-
aflex ducting
45° elbow, West-
aflex ducting
Non-return flap
Table 1
Internal minimum pipe diameter
(metal ducting)
5 7/8" (150 mm)
7 1/16" (180 mm)
7 7/8" (200 mm)
Permissible counter pressure in
the exhaust ducting
EL: electrically heated
G: gas-heated
SI/HW: steam-heated/hot water-
heated
Table 2
When connected to the vent ducting through the exhaust duct of a
machine, particular care must be taken to make sure the connection is
secure and air-tight.
With complex ducting with many bends and additional compo-
nents, or when several different machines are connected to a
shared duct, it is recommended that a detailed pipework calculation
is carried out by a qualified specialist.
PDR
PDR
914/514
918/518
r = 2d
r = 2d
r = d
r = d
r = 2d
r = 2d
r = 2d
r = 2d
r = 4d
r = 2d
r = 4d
39' 4 7/16"
39' 4
(12 m)
7/16"
(12 m)
PDR x14
PDR x18
62' 4 1/16"
49' 2 9/16"
(19 m)
(15 m)
164' 1/2"
124' 8
(50 m)
1/16"
(38 m)
278' 10
213' 3
7/16"
1/16"
(85 m)
(65 m)
EL:
EL:
0.05 psi
0.05 psi
(220 Pa)
(340 Pa)
G:
G:
0.04 psi
0.04 psi
(280 Pa)
(290 Pa)
SI/HW:
SI/HW:
-
0.03 psi
(200 Pa)
PDR
PDR
922/522
928/528
3' 7 5/16" (1.1 m)
2' 3 9/16" (0.7 m)
6' 2 13/16" (1.9 m)
3' 7 5/16" (1.1 m)
10' 6" (3.2 m)
6' 6 3/4" (2 m)
3' 11 1/4" (1.2 m)
3' 11 1/4" (1.2 m)
2' 11 7/16" (0.9 m)
3' 3 3/8" (1 m)
2' 7 1/2" (0.8 m)
22' 11
22' 11
9/16"
9/16"
(7 m)
(7 m)
PDR x22
PDR x28
39' 4 7/16"
32' 9
(12 m)
11/16"
(10 m)
101' 8 1/2"
88' 7"
(31 m)
(27 m)
173' 10
157' 5 3/4"
5/8"
(48 m)
(53 m)
EL:
EL:
0.05 psi
0.06 psi
(350 Pa)
(410 Pa)
G:
G:
0.04 psi
0.04 psi
(290 Pa)
(290 Pa)
SI/HW:
SI/HW:
0.04 psi
0.07 psi
(310 Pa)
(510 Pa)
PDR
944/544
21' 3
7/8"
(6.5 m)
PDR x44
32' 9
11/16"
(10 m)
78' 8 7/8"
(24 m)
130'
(40 m)
EL:
0.04 psi
(310 Pa)
G:
0.03 psi
(240 Pa)
SI/HW:
0.06 psi
(390 Pa)
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