Single Pipe-Horizontal Exhaust / Room Air Dependent - Viessmann Vitocrossal 200 CM2 Series Installation Instructions Manual

Vitocrossal 200 CM2 Installation Instructions
Single Pipe System - Horizontal Exhaust / Room Air Dependant
The vent diameter of CM2 boilers can be reduced to 6" (150 mm) nominal vent size. See the following table for max.
vent length applicable to vent reduction diameter.
Combustion
Air Opening
Air
Model Reduced Flue
vent
CM2-186 6" (150 mm)
CM2-246 6" (150 mm)
CM2-311 6" (150 mm)
Air-intake
to pipe
7 7
N/A
N/A
N/A
Venting Options - Stainless Steel / PP
Flue
a - Equivalent length (exhaust)
Max. Flue vent length "a"
154 ft. (47 m)
Can not be reduced (See tables on page 42, 44)
30 ft. (9 m)
Input derate %
0
0
49