Installation Of The Control Panel; Electrical Connection 12 V - Truma B 10 Operating Instructions Manual

Installation of the control panel

When using control panels which are specific to the
vehicle or the manufacturer, the electrical connection
must be established in accordance with the Truma interface
descriptions (refer to Electrical connection 230 / 240 V). Any
modification made to the Truma components pertaining to
this will lead to the invalidation of the guarantee, as well as to
the exclusion of any claims for liability. The installer (manufac-
turer) is responsible for providing instructions for use for the
user as well as for identification printing on the control panels.
When selecting the location, bear in mind that the control
panels must not be subjected to direct radiant heat. Length of
connection cable 2.5 m. If required, a cable extension of 5 m
can be supplied (refer to page 12).
m
5 5
Ø
28
Fig.19
Drill a hole with diameter 55 mm.
Plug the control panel cable (28) to the control panel for gas
operation (26) and then fit on the rear cover cap (29) as a
stress-relieving device.
Push the cable through to the rear and lay the connection
cable (28) to the boiler.
Lay the connection cable with the orange multipole connector
(28) to the 12 V control electronics unit (for connection refer
to Electrical connection 12 V).
Secure control panel with 4 screws (31) and fit the cover
frame (32) on it.
If a flush installation of the control panel it is not possi-
ble, use the surface-mounting frame (25) as supplied.
m
25
29
28
31
26
32

Electrical connection 12 V

Always disconnect the appliance from the power supply prior
to working on electrical components. It is not sufficient to just
switch off at the control panel!
The appliance must be disconnected from the vehicle main
power supply when carrying out any electric welding work on
the vehicle body.
If the connections are transposed there is a risk of ca-
ble burning. This also rules out any guarantee or liability
claims.
Unscrew cover (34) from the electronic control unit. Slide ca-
ble connector of control panel (28) onto the p.c.b.. The electri-
cal connection is made at terminal (35).
To connect press with a small screwdriver from above and
push in cable from the front.
Fig.20
Orange = Positive 12 V
Blue = Negative
Connect to fused vehicle mains (central electrical equipment
5 – 10 A) using a 2 x 1.5 mm² cable.
Negative cable to central earth. With lengths of over 6 m use
a cable 2 x 2.5 mm². If connecting directly to the battery, the
positive and negative cable must be fused. Screw cover (34)
back on.
There are to be no other 12 V consuming appliances connect-
ed to the supply line!
The water heater fuse (36), 1.6 A, (slow-acting) is on the
p.c.b..
When power supplies are being used, it must be noted that
the output voltage is between 11 V and 15 V and the alternat-
ing current ripple is < 1.2 Vpp.
11