Installation Position: Wall Cowl - Truma Combi eco Installation Instructions Manual

Installation position: wall cowl

Risk of carbon-monoxide poisoning due
to improper installation position of the
wall cowl!
If exhaust enters the RV, carbon monoxide
in the exhaust can poison people and cause
death.
• Install the wall cowl in a position so that no
exhaust can enter the RV.
• The flue gas outlet must not terminate un-
derneath a recreational vehicle. You must in-
stall the wall cowl in the side wall; see Fig. 7.
• The wall cowl must be ventilated by wind
from all directions.
Roof
Floor
Fig. 7
Clearances to openings
• The wall cowl must be at least 3 ft (0.9 m)
from any motor-driven air intake discharging
into habitable areas of the RV.
• The wall cowl must not terminate within 3 ft.
(0.9 m) underneath an expandable portion
(i.e. slide out) of an RV or the front bulkhead
of a fifth-wheel trailer.
• The entire wall cowl must be at least 3 ft
(0.9 m) from any gasoline filler spout on the
RV if the inlet or outlet is located above or at
the same level.
• If any portion of the wall cowl is below the
spout, then the clearance must amount to
the sum of the vertical distance below the
spout plus 3 ft (0.9 m).
Description
Clearance to a window
that can be opened
(according to
ANSI 21.47a-2012(15A),
CSA 2.3-2012)
Side wall
USA Canada
9 in. 12 in.
(23 cm) (30 cm)
The wall cowl's installation position in the RV
must conform to local regulations. If there are
no local regulations, then the installation posi-
tion must be in compliance with NFPA 1192
(National Fire Protection Association), CSA 2.3
(Canadian Standards Association) or NFPA 54.
Permissible length of exhaust venting
system
The mimium length of the exhaust venting sys-
tem is 2 ft (60 cm), the maximum is 6 ft 7 in.
(200 cm).
The exhaust venting system can be installed at
an upward angle or at a downward angle with a
drop no greater than 8 in. (20 cm).
Fig. 8
See Fig. 8 for lengths of exhaust venting sys-
tem regarding installation.
Dimension
a 2 ft – 6 ft 7 in.
b maximum 0.7 ft (8 in.)
The exhaust duct between the furnace and the
wall cowl must not form a U-shaped trap (Fig. 9).
Fig. 9
Wall cowl
feet (ft) cm
60 – 200
20
Wall cowl
11