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5790 733 - 07
Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
Side Wall Venting
IMPORTANT
For PP(s) systems, all exhaust vent and air intake piping
and elbows exposed outside, must be UV resistant
polypropylene (supplied by the vent manufacturer).
Side wall vent termination [stainless steel or PP(s)]
Min. 12 in.
(305 mm)
Exhaust vent
terminal 90
o
Grade or max.
snow level
* Field fabricated vent riser
Side wall
Support bracket
Termination elbow
with screen
*
Vent
Caulk
Max. 36 in.
(915 mm)
Min. 12 in.
(305 mm)
Grade or max.
snow level
Flue
Min. 2 in.
Max. 36 in.
(50 mm)
(915 mm)
Venting
Component Installation Guide
Flashing and storm collar installation
Flashings and storm collars are field supplied.
Flashings and storm collars suitable for Type B vent
materials (or better) may be used.
To obtain flashings and storm collars, please contact
your local vent material supplier. Follow the installation
instructions supplied by the special venting manufacturer.
Elbow - Equivalent Length
Equivalent Length
Elbow size
7
4 in. (100 mm)
6 in. (150 mm), 8 in. (200 mm), 10 in. (250 mm),
12 in. (300 mm), 14 in. (350 mm), 16 in. (400 mm)
45º
1 ft. (0.3 m)
5 ft. (1.5 m)
90º
1.6 ft. (0.5 m)
10 ft. (3 m)
Note:
If flexible vent or air-intake pipe are used, the total max. equivalent length will be reduced by 25%.
