Fisher & Paykel AeroSmart DE27CW1 Installation Instructions And User Manual page 17

Maximum length of exhaust duct
Number of 90˚
elbows/bends
0
1
2
3
4
Number of 90˚
elbows/bends
0
1
2
3
4
For exhaust systems not covered by the exhaust duct length charts (such as multiple unit
hook-ups, plenums, and power-assist fans), call our Customer Care Center:
TOLL FREE 1.888.9.FNP.USA (1.888.936.7872).
Preferred 4" Hoods
When you have a 4" (100 mm) Hood
Maximum length of 4" diameter metal duct.
Rigid
64 ft 19.5 m
54 ft 16.5 m
44 ft 13.4 m
35 ft 10.6 m
27 ft 8.2 m
Acceptable 2 ½" Hood
When you have a 2 ½" (60 mm) Hood
Maximum length of 4" diameter metal duct.
Rigid
58 ft 17.6 m
48 ft 14.6 m
38 ft 11.5 m
29 ft 8.8 m
21 ft 6.4 m
Installation instructions
Thick Wall Flexible Metal
(fully extended)
8 ft
8 ft
8 ft
8 ft
8 ft
Thick Wall Flexible Metal
(fully extended)
8 ft
8 ft
8 ft
8 ft
8 ft
15
2.4 m
2.4 m
2.4 m
2.4 m
2.4 m
2.4 m
2.4 m
2.4 m
2.4 m
2.4 m