Product Manual

Picture 16
1 Heater
2 Water pump
3 T-piece with non-return
valve
4 Vehicle heat exchanger
5 Vehicle engine
3.11 Exhaust system
Danger!
Risk of injuries and burns!
During combustion, high temperatures and toxic exhaust fumes are
produced. This is why the exhaust system must always be routed as
described in these installation instructions.
Æ
Do not perform any work on the exhaust system while the heater
is working.
Æ Before working on the exhaust system, switch off the heater first
and wait until all the parts have completely cooled down, wear
safety gloves if necessary.
Æ Do not inhale exhaust fumes.
Warning!
Risk of burns!
The entire exhaust system is very hot while the heater is running and
immediately afterwards. This is why the exhaust system must always
be routed as described in these installation instructions.
Æ The exhaust pipe must end in the open air.
Æ The exhaust pipe may not protrude beyond the lateral limits of
the vehicle.
Æ Lay the exhaust pipe sloping slightly downwards. If applicable,
attach a drain hole for condensate discharge at the lowest point
(Ø approx. 5 mm).
Æ Important functional parts of the vehicle may not be impaired
(maintain sufficient clearance).
Æ Mount the exhaust pipe with sufficient clearance to heat-
sensitive parts. Pay particular attention to fuel lines (made of
plastic or metal), electrical cables and brake hoses, etc!
Æ Exhaust pipes must be securely fixed (Recommendation: at
distance of approx. 50cm) to avoid damage due to vibrations.
Æ Lay the exhaust system so
– that outflowing exhaust gases cannot be drawn into the fresh air
intake of the vehicle or heater.
– that outflowing exhaust gases cannot be drawn in as combus-
tion air.
Æ
The mouth of the exhaust pipe must not become clogged with
dirt and snow.
Æ
Do not mount the mouth of the exhaust pipe in the direction of
travel.
Æ
Always fix the exhaust silencer to the vehicle.
Æ
Lay the exhaust system so that the exhaust fumes do not flow
directly onto heat-sensitive components.
Note

Follow the regulations and safety instructions for this chapter
from
page 9
.

The exhaust pipe end should be much shorter than the flexible
exhaust pipe from the heater to the exhaust silencer.

To avoid contact corrosion, the clips for fixing the exhaust pipe
must be made of stainless steel. For the Order No. of the fixing
clips, refer to the “Product Information” document.
The exhaust system consists of a flexible exhaust pipe (di 24mm),
900mm long, a flexible exhaust end pipe with end sleeve (di 24mm),
300mm long and an exhaust silencer. All parts for the exhaust
system including the fixing parts are included in the installation kit
(for allowable line lengths, see sketch
on page 24).
3.11.1 Installing the exhaust system
 Use a bracket to fix the exhaust silencer onto a suitable place on
the vehicle,
see Picture 17.
 Lay the flexible exhaust pipe from the heater to the exhaust
silencer and fasten with pipe clips (tightening torque: 6+0.5Nm),
adjust the length if necessary.
 If necessary, shorten the exhaust end pipe with end sleeve, push
onto the exhaust silencer and fix with a pipe clip (tightening
torque: 6+0.5Nm).
 If necessary, use pipe clips to fasten the flexible exhaust pipe
and the exhaust end pipe in suitable positions in the vehicle
(Recommendation: at approx. 50cm spacings).
 If necessary attach spacer rings on the flexible exhaust pipe and
onto the exhaust pipe end, to ensure a safe distance from heat-
sensitive parts of the vehicle. If applicable, use additional exhaust
pipe insulation (see product information).
Picture 17
25.2933.90.0001.0A EN | 06.2018 23
Technical Description | Hydronic S3 Economy