3
Installation
instructions
Please fold out page
with diagrams!
Installation and repair are
only to be carried out by
an expert. Always read and
follow the operating instruc-
tions carefully prior to starting
any work!
Intended use
This appliance has been de-
signed for the installation in
caravans, mobile homes and
other vehicles. It is not ap-
proved for installation in
boats. Other forms of use are
also possible following con-
sultation with Truma.
Information regarding boats:
For installation in boats Truma
supplies the DVGW-tested
boat water heater.
Approval
Declaration of conformity:
The Truma water heater mod-
el has been tested and ap-
proved through the DVGW
and fulfils the EC gas appli-
ance guidelines (90/396/EEC)
as well as the associated EC
guidelines. The CE Ident.
Number is available for EU
countries: CE-0085AP0038
Regulations
Any alteration to the appli-
ance (including cowl) or the
use of spare parts and acces-
sories which are important for
the functioning of the heater
and which are not original
Truma parts, as well as the
non-observance of the instal-
lation and operating instruc-
tions, shall lead to the can-
celling of the guarantee and
exclusion of liability claims. It
also becomes illegal to use
the appliance, and in some
countries this even makes it il-
legal to use the vehicle.
The operating pressure for
the gas supply is 30 mbar
(or 28 mbar butane/
37 mbar propane) and
must correspond to the
operating pressure of the
appliance (see name plate).
When installing the appli-
ance always observe the
technical and administra-
tive rules and regulations
of the country in which the
vehicle is to be registered,
for the first time!
In Germany, for example, gas
appliances, cylinder mount-
ing, duct routing as well as
the approval and leak test
must comply with the DVGW
form G 607 for liquid gas sys-
tems in vehicles.
Ask for more details con
cerning regulations in the
respective countries from
our agencies abroad (see last
page).
1
Choice of location
1. Always install the appli-
ance 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 di-
rections and, if possible, there
should be no trim strips or
covers in this area, mount
heater on an appropriate
base, if necessary.
The cowl must be placed in
such a way that the exhaust
gas cannot find its way into
the vehicle interior. For this
reason, choose a location
where there are no opening
windows, skylights or ventila-
tion openings directly above
the cowl or for 30 cm on ei-
ther side. If this is not possi-
ble, a warning plate must be
placed on the inside of the
window (or skylight) stating
that it must be kept closed
while the heater is operating.
In this case refrigerator venti-
lations must be tight-sealed
from the interior of the vehi-
cle.
2
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 pos-
sible from the outside = F).
2. Position template on the
outside of the wall. The mark-
ings (C) must be above the
through-holes. Saw cut-out
section for cowl (D)
92 x 168 mm.
If the distance between out-
side wall and heater is more
than 35 mm you must use
the cowl extension VBO 2
(Art. no. 70131-00) 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 (Fig. A: 1),
pack these with pieces of
wood so as to be able to
tighten the screws.
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 exceed-
ed.
3. Fig. A: Insert heater with
cowl body (3) through the
cowl opening (1), allow ap-
prox. 5 mm to project out of
the wall. Mount sealing frame
(4) (the anti-torsion device en-
sures correct fitting!). Pre-drill
holes for the 6 fastening bolts
(5).
4. Remove sealing frame (4)
and coat with plastic sealant
on the side facing the vehicle
- do not use silicone!
Attention: The sealing frame
must be well sealed with re-
spect to the front sides and
the cross bars of the cowl
body (3) as well as towards
the outside wall!
5. Fasten sealing frame (4) to
the cowl body using 4 self-
cutting screws (7).
6. Seal the gap between the
hole (2) and the condensation
tube (10) with plastic sealant
- do not use silicone!
7. Mount the grille (8). Press
the entire cowl assembly on-
to the vehicle wall and fasten
with 6 screws (5).
8. Screw the boiler securely
to the floor of the vehicle with
at least two shackle plates
(11) with the screws provid-
ed, B 5.5 x 25, on a suitable
base (plywood panel, laminat-
ed wood strips, or metal
base).
3
Water connection
All pressure and submergible
pumps up to 2.8 bar are used
for operating the water heater
and all mixed combination
sets with or without an elec-
trical switch.
Fig. B: When using immer-
sion pumps, a non-return
valve (12 - not included in the
scope of supply) must be fit-
ted between the pump and
the first branch point (arrow
points in direction of flow).
Fig. C: When using pressure
pumps with high switching
hysteresis, hot water may
flow back through the cold
water tap. To prevent the
backflow, we recommend
that a non-return valve (6 -
not included in the scope of
supply) be fitted between the
outlet to the cold water tap
and the drain valve.
Pressure and hot water-resis-
tant hoses (e.g. Truma boiler
hose SBH, food-safe, pres-
sure resistant up to 3.5 bar)
with an internal diameter of
10 mm should be used for
the boiler and the safety/drain
valve connections.
For fixed pipe routing (e.g.
John Guest System) Truma
can provide the water con-
nectors (15 + 16), the safety/
drain valve (13) and a non-re-
turn valve (12 + 6) with a
straight 10 mm diameter tap
connector as special acces-
sories.
If connecting to a central wa-
ter supply (rural or city con-
nection) or when using more
powerful pumps, a pressure
reducer must be used which
prevents pressures of greater
than 2.8 bar occurring in the
boiler.
Attention: Route the water
hoses so that they are as
short and free of kinks as
possible. All hose connec-
tions must be secured using
hose clamps (also for cold
water)! Pressures of up to
3.5 bar can occur in the safe-
ty/drain valve (also in sub-
mergible pumps) because of
the heat of the water and the
resulting expansion.
Hose clips (Art. no. 40710-00)
are recommended for attach-
ing the hoses to the wall or
the floor. If gas heating has
been installed, the water
hoses and the hose clips can
be laid on the hot air pipes,
which prevents frost.
Attention: In order to guar-
antee that the Ultrastore is
completely empty, the en-
closed elbow with breather
valve (figure d: 15) must be
used for the hot water con-
nection!
All hot water pipes should
be routed in a descending
manner to the safety/drain
valve! Otherwise no guar-
antee of protection from
frost!
