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5790 733 - 07
Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
Flue
Air
Air
Room
Combustion
Air Opening
Single Pipe System - Horizontal Exhaust/Room Air Dependant
a - Equivalent exhaust length
Venting Options - Stainless Steel/PP(s)
Horizontal exhaust/room air dependant
Vitocrossal 300 CA3 Boiler model
3.5
4.0
Exhaust vent diameter
in. (mm)
12 (300)
14 (350)
12 (300)
14 (350)
Max. vent equivalent length
ft. (m)
164 (50)
198 (60)
115 (35)
198 (60)
Horizontal exhaust/room air dependant
Vitocrossal 300 CA3 Boiler model
5.0
6.0
Exhaust vent diameter
in. (mm)
16 (400)
16 (400)
Max. vent equivalent length
ft. (m)
198 (60)
198 (60)
Note:
If flexible vent or air-intake pipe are used, the total max. equivalent length will be reduced by 25%.
Horizontal exhaust/room air dependant
Vitocrossal 300 CA3 Boiler model
2.5
3.0
Exhaust vent diameter
in. (mm)
10 (250)
12 (300)
10 (250)
12 (300)
Max. vent equivalent length
ft. (m)
125 (38)
198 (60)
82 (25)
198 (60)
