Truma S 55 T Instructions De Montage page 7

If the gas supply (Fig. A: 10)
is to come from below, drill
hole (F) with the appropriate
diameter for the gas pipe
used.
3. Fig. B: Fix installation
bracket (7) to hold the heater
in place at the rear using a
screw (9).
4. Fig. G: Place the outer
part (11) and inner part (12) of
the installation casing on top
of one another and join with
five self-tapping screws (13).
Lower the air diffuser (14) of
the Trumavent fan (15) into
the slot (16) in the installation
casing. Push the Trumavent
fan (15) into the air diffuser
and fix in place with the re-
taining spring (17).
Tip: If the Truma-Ultraheat
supplementary electrical
heater is fitted, pre-assemble
this in the installation casing
in accordance with the en-
closed installation guide.
5. Fix the pre-assembled cas-
ing in the installation cut-out
so that the lower edge lies on
the floor of the vehicle and fix
it in place with six screws
(18). The four upper screws
must each be screwed diago-
nally facing outwards.
6. Fig. A: Place the heating
unit in the installation space.
Centre the intake pipe (2) in
the intake connection (1) and
push the heating unit into the
rear installation bracket (Fig.
B: 7). Feed the control cable
from the solenoid valve (40)
back to the Trumavent fan.
Ensure that the cable is
not pinched.
Fix the heater with three
screws (8) to the marked
points. Reinforce the base
construction with extra strips
of metal if required.
7. Check that the plug con-
nections are correctly located
at the automatic ignition de-
vice (Z).
8. Insert the lever with the
eyelet spring (19) into the
safety pilot valve (20).
9. Fig. F: Bend the suction
extension piece (1) into an
S-shape as shown, and se-
cure it to the underside or
frame of the vehicle with a
clip. If there is low ground
clearance (e.g. mobile home),
bend the suction extension
piece (1) into a double bend.
Important note: Create a
hole with Ø approx. 8 mm
with a bradawl to allow
any water to escape which
might penetrate.
4
Exhaust gas cowl
For the Truma S 55 T heater
only the roof flue AK 55 T
(item No. 30652-02) may be
used, as the unit has only
been tested and approved
for use with this flue. The flue
may be installed only
vertically or at a maximum
angle of 15°.
Fig. D: Position the roof cowl
so that the duct (minimum
length 1.8 m, maximum
length 3 m!) can be routed
direct from the heater unit,
sloping upward all the way to
the cowl. A 1.8 metre long
duct must reach a height of
at least 1.5 metre. The re-
mainder of the duct to the
roof cowl must be installed
more or less vertically.
Tip: If the installation space is
not very high the exhaust gas
pipe may be fitted to the side
of the installation casing. To
do this, break the pre-pressed
cover (Fig. A: 21).
1. Fig. E: Cut out an opening
with a Ø of 70 mm at a centre
distance of at least 60 mm
from the side walls. In the
case of a double-skin roof,
line the cavity with wood (21)
or slide in a rolled circular
sheet metal strip (22) of about
220 mm in length and 1 mm
in thickness, to stiffen the
roof so that when the screws
are tightened it does not
warp and stays weatherproof.
2. Push the cowl through the
roof from above and fasten it
on the inside with screw ring
(23). Secure the screw ring
(23) from beneath with a
screw.
Use the enclosed rubber
sealing ring without further
sealing materials.
5
Exhaust duct
For the Truma S 55 T, only
Truma stainless steel exhaust
duct AE 5 (Art. No. 30160-00)
with Truma insulating duct
ÜR 5 (APP) (Art. No. 40250-
00) are to be used, as the ap-
pliance has only been tested
and approved with these
ducts.
Length of exhaust duct: min.
1.8 m, max. 3 m!
Fig. I: Fitting and bending the
stainless steel duct and
stretching open the O-ring
are made considerably easier
by using „Biege-Boy" (Art.
No. 30030-33000).
1. Fig. J: Connecting the ex-
haust duct to the heater:
Slide sealing plate (24) about
3 cm onto the exhaust duct
(with the claw pointing to-
wards the heater exhaust out-
let). Slide on pressure ring
(25). Stretch open O-Ring (26)
and carefully pass it over the
cut edge of the duct. Then
plug the exhaust duct into the
exhaust outlet as far as the
stop.
Slide the O-ring, pressure ring
and sealing plate to the ex-
haust outlet. Twist on sealing
plate (24) and fasten it se-
curely by tightening screw
(27)
Attention: A new O-ring (26)
must be fitted each time the
exhaust duct is dismantled
(refer to Fig. J).
2. Slide insulating duct (28)
onto the exhaust duct (29) (it
must reach from the cowl to
the rear wall of the installa-
tion box, refer to Fig. E + H).
3. Fig. E + H: Take the duct-
ing up the wall with as few
bends as possible. Slide ex-
haust gas duct (29) into the
cowl as far as the stop and
secure with self-tapping
screw (30).
Attention: Exhaust gas duct
(29) with its insulating duct
(28) must be sloping upward
over its whole length and fit-
ted securely and permanently
with several clamps (31),
otherwise a water trap may
form, obstructing the free
passage of the exhaust gas-
es.
6
Gas connection
Fig. F: Gas Supply line must
be connected to fitting (10)
with 8 mm outside diameter.
Attention: The gas connec-
tion fitting on the heating
appliance must not be bent!
When tightening the connec-
tion nipple, hold it carefully in
place with a second wrench!
Route the ducting in such a
way that the heater can be re-
moved for servicing work.
Make sure the gas lines are
free of dirt, chips and such
prior to connecting!
In Germany the gas system
must comply with the DVGW
form G 607.
In other countries always
observe the current technical
and administrative regula-
tions applicable in your coun-
try.
7
Heater casing
1. Fig. F: Attach Trumavent
fan connector cable (33) to
the operating device (34) and
feed it rearward.
2. Join the pilot light connec-
tor cable (35) to the cable (36)
for the automatic ignition (Z).
3. Place the cover on the low-
er supporting bracket
(Fig. A: 37) on the installation
casing. Place the control rod
(19) into the knob sleeve (38)
and allow the cover to slide in
upwards until it fits into posi-
tion. Fit the control knob (39)
onto the rod (19) in such a
way that the arrow points to
„0".
8
Trumavent Fan
12 V Electrical
Connection
Prior to working on
electric components the
appliance must be discon-
nected from the power
supply. Switching off at
the control panel is not
sufficient!
1. Fig. H: Attach the connec-
tor cable (33) from the fan op-
erating device (34) to plug T
and the control cable (43)
from the solenoid valve (Fig.
F: 40) to plug B on the fan
(15).
Plug K relates only to the Tru-
matic S 3002 K and
S 5002 K heating units and
is not required.
2. Connect the appliance to
the fused vehicle electrical
system (central electrical
sy-stem 5 - 10 A) using the
2 x 1.5 mm2 cable, for
lengths over 6 m use 2 x
2
2.5 mm cable. Negative ca-
ble to central ground. For di-
rect connection to the battery
the positive and negative ca-
ble must be fused. Connec-
tions (41) in Faston terminals,
fully insulated (motor vehicle
flat connector system,
6.3 mm).
Attention: If the connec-
tions are transposed there
is a risk of cable burning.
This also rules out any
guarantee or liability
claims.
Do not connect any other
consumers to the supply line!
Electric cables, switching
units and control units for
heaters must be arranged in
the vehicle in such a way that
their satisfactory operation
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