Viessmann Vitocrossal 200 CM2 Series Installation Instructions Manual page 40

Venting Options - Stainless Steel / PP
Two Pipe System - Vertical Exhaust / Vertical Air Intake
Vertical Vent Installation Sloped Roof
Vertical Vent Installation Flat Roof
40
Vitocrossal 200 CM2 Installation Instructions
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. (457 mm)/ max. 48 in. (1219 mm)
b min. 4 in. (102 mm)
c min. 12 in. (305 mm)
d 6 in. (152 mm) over max. local snow level (check
with your local weather office for details)
(continued)