Miele PDR 922 - Page 56

Installation
*INSTALLATION*
56
Example2
Common combined exhaust ducting for multiple appliances should
only be considered as a solution in exceptional cases.
Configuring combined exhaust ducting made from steel for the PDR
914/514 and PDR 918/518 series tumble dryers:
L1–L4 each 6'6"(2m) steel piping
B1–B3 each 90° concertina pipe elbow (r = 2d)
B4 45°elbow (r=2d)
B5 90°elbow (r=d)
If the exhaust from multiple appliances is to be ducted into a com-
bined line, a non-return device must be installed in each separate
line to prevent backflow.
B2
L1
B1 B3
L2
L4
B5
B4
L3
PDR 914/514
PDR 918/518
1.Total pipe length
PDR914/514
Steel pipe L1 = 6'6"(2.0m)
Steel pipe L2 = 6'6"(2.0m)
Steel pipe L4 = 6'6"(2.0m)
90° concertina pipe
elbow (r=2d)
B1 = 10'6"(3.2m)*
90° concertina pipe
elbow (r=2d)
B2 = 10'6"(3.2m)*
90°elbow (r=d) B5 = 6'3"(1.9m)*
Total duct length 46'11"(14.3m)
* Substitute pipe lengths according to Table1