Exhaust gas system
Fire hazard from overheating and/or danger of suffo-
cation from exhaust fumes if installed incorrectly or if
parts other than original Truma parts are used for the exhaust
gas system.
– Use only original Truma parts for the exhaust gas system.
– Follow the installation instructions when installing the ex-
haust gas system.
Possible risk of cut injuries from sharp edges on the ex-
haust duct. Wear protective gloves during installation.
Original Truma parts for the exhaust gas system
The heater is only tested and approved with these original
Truma parts.
Heater
Exhaust
duct
S 3004
AE 3
S 5004
AE 5
Length of the exhaust duct
Figure 12
minimum
Heater
h [m]
S 3004
1.6
S 5004
1.9
* Maximum of 3 cowl extensions, each 15 cm
If two or three 15cm extensions are used, they must be
removed before the vehicle is in motion so that they are
not lost (risk of accident). Remaining extensions must be
screwed in place.
Wear protective gloves due to sharp edges!
Using the duct bender (Biege-Boy) makes it easier to bend the
exhaust duct and to fit the O-ring.
Figure 13
Connect exhaust duct to heater
Slide sealing plate (33 – claw points to exhaust connection
of heater) about 3 cm onto the exhaust duct (37). Slide on
pressure ring (36). Carefully guide O-ring (34) over cut edge of
duct by expanding it and insert exhaust duct into the exhaust
connection as far as it will go.
22
Duct
Clamp
ÜR
ÜS
ÜR 5
ÜS 5
≤ 3*
l
h
≥ 10°
maximum
l [m]
h [m]
l [m]
1.8
2.5
3.0
2.1
Slide O-ring, pressure ring and sealing plate onto exhaust
connection. Hook sealing plate (33) into lugs of exhaust
connection by rotating and secure by tightening screw (35).
Check that exhaust duct is firmly seated.
34
36
33
37
35
Figure 14
A new O-ring (34) must be fitted whenever the exhaust
duct has been removed.
Slide the duct (38) onto the exhaust duct (37) (must extend
from cowl to the rear wall of the installation box).
Route ducts upwards against the wall with as little bending as
possible. Slide exhaust duct (37) into cowl as far as it will go
and secure with self-tapping screw (39 – 3.5 x 16).
S 3004
37
38
Figure 15
The exhaust duct (37) with duct (38) must be ascending
along its entire length and securely and permanently in-
stalled using several clamps (40), otherwise a water pocket
may form that will prevent the exhaust gas from exiting freely.
Install the auto ignitor after fitting the exhaust duct.
Gas connection
Figure A
The operating pressure of the gas supply (30 mbar) must
correspond with the operating pressure of the appliance (see
type plate – 66).
The gas supply line must be attached to the connection (52)
with an 8 mm outer diameter with an olive screw connection.
The gas connection to the heater must not be bent!
When the connecting nipple is being tightened it must
be carefully counterheld with a spanner!
The duct routing must make it possible for the heater to be
removed again for service work.
Before connecting to the heater, please ensure that the gas
lines are free of dirt, shavings and the like!
Liquid gas systems must comply with the technical and admin-
istrative regulations of the respective country of use (e.g. EN
1949 for vehicles). The national legislation and regulations (e.g.
DVGW Work Sheet G 607 in Germany) must be observed.
33
35
S 5004
39
37
40
38
37
38
40
39
40
37
38
40