Two Pipe System - Vertical/Horizontal Installations - Viessmann Vitocrossal 300 CA3 2.5 Installation And Service Instructions Manual

Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
Two Pipe System - Vertical Exhaust/Horizontal Air Intake
Horizontal intake and vertical exhaust
Vitocrossal 300 CA3 Boiler model
Combustion air intake diameter
Exhaust vent diameter
Max. combustion air intake length (b)
Max. total equivalent length (a+b)*
Horizontal intake and vertical exhaust
Vitocrossal 300 CA3 Boiler model
Combustion air intake diameter
Exhaust vent diameter
Max. combustion air intake length (b)
Max. total equivalent length (a+b)*
Horizontal intake and vertical exhaust
Vitocrossal 300 CA3 Boiler model
Combustion air intake diameter
Exhaust vent diameter
Max. combustion air intake length (b)
Max. total equivalent length (a+b)*
* A minimum of 20 ft. (6 m) of equivalent exhaust vent length must be included in the equivalent vent length (a+b) calculation.
Note: If flexible vent or air-intake pipe are used, the total max. equivalent length will be reduced by 25%.
Flue
in. (mm) 10 (250)
in. (mm) 10 (250)
ft. (m)
66 (20)
ft. (m)
99 (30)
in. (mm) 12 (300)
in. (mm) 12 (300)
ft. (m) 66 (20)
ft. (m) 198 (60)
in. (mm) 16 (400)
in. (mm) 16 (400)
ft. (m)
198 (60)
ft. (m)
198 (60)
Venting Options - Stainless Steel/PP(s)
Air
a - Equivalent exhaust length
b - Equivalent air intake length
(see chart for max. air intake length)
2.5
12 (300)
12 (300)
99 (30)
198 (60)
3.5
12 (300) 12 (300)
14 (350) 12 (300)
131 (40)
198 (60) 115 (35)
5.0
3.0
10 (250) 12 (300)
10 (250) 12 (300)
33 (10) 99 (30)
52 (15) 198 (60)
4.0
14 (350)
14 (350)
50 (15) 66 (20)
198 (60)
6.0
16 (400)
16 (400)
164 (50)
198 (60)
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