Technical data

40
5584 069 - 05
Vitocrossal 200, CM2 400, 500, 620 and 620 TX Installation
Direct Venting (Two Pipe System)
IMPORTANT
IMPORTANT
The exhaust vent/air intake system must terminate so
that proper clearances are maintained as cited in local
codes or the latest edition of the “Natural Gas and
Propane Installation Code” CAN/CSA-B149.1 (Canada),
or the “National Fuel Gas Code” ANSI Z223.1 (NFPA
54) (U.S.A.).
For PP systems, all exhaust vent and air intake piping
and elbows exposed outside, must be UV resistant
polypropylene (supplied by the vent manufacturer).
Side wall vent termination (stainless steel, CPVC or PP)
Side wall
Support bracket
Termination elbow
with screen
*
Vent
Caulk
Max. 36 in.
(915 mm)
Min. 12 in.
(305 mm)
* Field fabricated vent riser
Grade or max.
snow level
Min. 26 in.
(660 mm)
Stainless steel or
plastic mesh
Intake terminal 90
o
Min. 12 in.
(305 mm)
Exhaust vent
terminal 45
o
Grade or max.
snow level
WARNING
Vent termination must be at least 12 in. (305 mm)
above the anticipated snow level (consult your local
building authorities or local weather office). Locate
vent termination in such a way that it cannot be
blocked by snow.
Min. 2 in. (50 mm)
Max. 36 in. (915 mm)
Min. 12 in.
(305 mm)
Min. 2 in. (50 mm)
Air
Vent
Venting