Miele PDR 922 - Room Ventilation Opening for Air Intake from the Setup Room

Installation
*INSTALLATION*
53
The vent ducting must not be channeled into a chimney or flue already
in use for any gas-, coal-, or oil-burning installation. The warm and
moist exhaust air is to be conducted outside or to a suitable venting
duct over the shortest path possible. The vent ducting must be laid so
that air flow is not hindered. To achieve this, use as few bends as pos-
sible along with short pipelines and well-made connections and tran-
sitions checked for air-tightness. No filters or grilles may be fitted in
the vent ducting.
The end of the vent ducting leading out into the open should be pro-
tected against the elements, e.g., with a downward-facing 90° bend.
 During tumble dryer operation, the room must be adequately
ventilated.
Room ventilation
opening for air in-
take from the
setup room
The minimum dimension of the ventilation opening depends on the
cross-section of the vent duct.
Vent duct Minimum dimension for ventilation opening
  A A  
6"
(150mm)
- 277/16"²
(177cm²)
825/16"²
(531cm²)
101/4"
(260mm)
91/16"
(230mm)
- 6"
(150mm)
347/8"²
(225cm²)
1045/8"²
(675cm²)
115/8"
(295mm)
101/4"
(260mm)
71/16"
(180mm)
- 393/8"²
(254cm²)
1181/8"²
(762cm²)
123/8"
(315mm)
11"
(280mm)
- 71/16"
(180mm)
501/4"²
(324cm²)
15011/16"²
(972cm²)
14"
(355mm)
123/8"
(315mm)
77/8"
(200mm)
- 4811/16"²
(314cm²)
146"²
(942cm²)
133/4"
(350mm)
123/16"
(310mm)
- 77/8"
(200mm)
62"²
(400cm²)
186"²
(1,200cm²)
159/16"
(395mm)
133/4"
(350mm)
811/16"
(220mm)
- 587/8"²
(380cm²)
17611/16"²
(1,140cm²)
15"
(381mm)
1413/16"
(377mm)
- 811/16"
(220mm)
75"²
(484cm²)
2251/16"²
(1,452cm²)
1615/16"
(430mm)
151/16"
(382mm)
913/16"
(250mm)
- 761/8"²
(491cm²)
2285/16"²
(1,473cm²)
171/8"
(435mm)
153/16"
(385mm)
- 913/16"
(250mm)
967/8"²
(625cm²)
2905/8"²
(1,875cm²)
195/16"
(490mm)
171/8"
(435mm)
113/16"
(300mm)
- 1099/16"²
(707cm²)
3283/4"²
(2,121cm²)
201/2"
(520mm)
181/8"
(460mm)
- 113/16"
(300mm)
1391/2"²
(900cm²)
4181/2"²
(2,700cm²)
231/4"
(590mm)
201/2"
(520mm)
Table3