Viessmann Vitocrossal 300 CA3 2.5 Installation And Service Instructions Manual page 69

Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
Two Pipe System - Vertical Exhaust/Vertical Air Intake
Vertical Vent Installation Sloped Roof
Vertical Vent Installation Flat Roof
Venting Options - Stainless Steel/PP(s)
IMPORTANT
All PP(s) vent termination elbows, must be secured in
place as specified by manufacturer.
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).
Legend
A Support system
B Flashings
C Exhaust with screen
D Combustion air intake with screen
Dimensions
a min. 18 in. / max. 48 in.
b min. 0 in.
c min. 12 in.
d 6 in. over max. local snow level (check with your
local weather office for details).
(continued)
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