6
Installation instructions
Installation and repair are only to be carried out by an
expert. Always read and follow the operating instructions
carefully prior to starting any work!
Intended use
This appliance has been designed for the installation in cara-
vans, motor homes and other vehicles. It is not approved for
installation in boats. Other forms of use are also possible
following consultation with Truma.
Information regarding boats: For installation in boats Truma
supplies the DVGW-tested boat water heater.
Regulations
Any alteration to the appliance (including cowl) or the use of
spare parts and accessories which are important for the func-
tioning of the heater and which are not original Truma parts, as
well as the non-observance of the installation and operating
instructions, shall lead to the cancelling of the guarantee and
exclusion of liability claims. It also becomes illegal to use the
appliance, and in some countries this even makes it illegal to
use the vehicle.
In-vehicle installations must comply with the technical and ad-
ministrative regulations of the respective country of use (e.g.
EN 1949 for vehicles). The national regulations and rules must
be complied with.
Water heater kit
The water heater kit contains:
1 Assembled water heater
1 Cowl assembly with screws
1 Hot water connector
1 Cold water connector
1 Safety (pressure relief) drain valve
1 Wall switch (gas operation) with 3 m cable
1 Wall switch (230 V operation with 3 m cable) – option –
1 Installation template
1 Set literature
1 Label with warning information
In order to guarantee complete emptying of the water content,
ongoing sealing tightness of the water connections and safety
function all enclosed parts must be used!
Choice of location
1. Always install the appliance in such a way that it is easily
accessible for service work at all times and can be easily
removed and installed.
2. Locate the heater in such a way that the cowl can be
mounted on the outside on a surface which is as straight and
smooth as possible. This outside surface must be exposed to
wind from all directions and, if possible, there should be no
trim strips or covers in this area, mount heater on an appropri-
ate base, if necessary.
The cowl may not be positioned within 500 mm (A) of a refu-
elling point or fuel tank breather outlet or within 300 mm (A) of
a ventilator for the living space. If the cowl is positioned verti-
cally below an opening part of a window, the water heater
must be fitted with an automatic shut-off device (please refer
to page 11) to prevent operation when the window is open.
Installation of the water heater
1. Position template for cowl opening on the inside of the wall.
A = bottom edge of heater
B = lateral edge of heater
Drill 4 holes (C) with 10 mm dia. through the wall. Drill hole (E)
with 15 mm dia. for condensation pipe (also possible from the
outside = F).
2. Position template on the outside of the wall. The markings
(C) must be above the through-holes. Saw cut-out section for
cowl (D) 92 x 168 mm.
If the distance between outside wall and heater is more than
35 mm you must use the cowl extension VBO 2 (please refer
to page 11) with an additional length of 50 mm. Saw out
100 x 176 mm along the dashed line.
If there are any cavities in the
area of the cowl, pack these
with pieces of wood so as
to be able to tighten the
screws. The finished hole
should be 168 mm high and
92 mm wide.
Cut out trim strips or such on the vehicle or place supports
beneath them so as to make the cowl lie flat.
Place a support beneath the heater if the walls are sloping. An
angle of inclination of 10 degrees is not to be exceeded.
3. Insert heater with cowl body (1) through the wall cut-out (2),
allow approx. 5 mm to project out of the wall. Mount sealing
frame (3) (the anti-twisting device ensures correct fitting!).
Pre-drill holes for the 6 fastening bolts (4).
4. Remove sealing frame (3) and coat with non hardening mas-
tic on the side facing the vehicle – do not use silicone!
The sealing frame must be well sealed with respect to
the front sides and the cross bars of the cowl body (1)
as well as towards the outside wall!
5. Fasten sealing frame (3) to the cowl body using 4 self-cut-
ting screws (4).
Screw the sealing
frame (3) in contact
together with the cowl
body (1) so the anti-twist
device projects out!
