12 V Voltage Supply; Battery Connection; Room Temperature Sensor Connection; Digital Control Panel Connection - Truma VarioHeat Series Einbauanweisung

Plug / contact Description
X7-1 Room temperature sensor
X7-2 Room temperature sensor
X7-3 Window switch or jumper
X7-4 Window switch or jumper
X7-5 —
X7-6 —
X7-7 —
X7-8 —
X5-1 + Battery
X5-2 - Battery
X6 TIN bus / CP plus / CP classic

12 V voltage supply

Electrical lines, switching and control equipment for heaters
must be in locations that will not cause the operation thereof
to be adversely affected under normal operating conditions.
The breakthroughs of all lines leading to the outside must be
protected from splash water.
Disconnect the device from the power supply before starting
to work on electrical components. Switching off at the control
panel is insufficient!
The unit must be disconnected from the on-board power
supply when electric welding work is being carried out on the
body.
In order to ensure that an optimum power supply is pro-
vided, the heater must be connected to the fuse-protected
on-board power supply (central electrical system 10 A) with
2 x 2,5 mm² cables (2 x 4 mm² when lengths exceed 6 m).
Voltage drops in the supply line must be taken into consider-
ation if necessary. Connect negative line to main ground con-
nection. If the equipment is connected directly to the battery,
the positive and negative lines must be protected.
The fuse F1 is tripped if the polarity is incorrect.
No other consumers must be connected to the supply line!
When power packs or power supply units are being
used, note that the output voltage is between 11 V and
15 V and the alternating current ripple is < 1.2 Vpp.

Battery connection

Depending on the cable cross section, crimp the supplied
6.3 mm flat connectors onto the positive and negative line
and insert at the connector X5 (contact 1 / 2) (if necessary,
fuse the positive and negative lines).

Room temperature sensor connection

Connect the bushing X7 of the room temperature sensor to
the connector X7 of the cable harness.

Digital control panel connection

Plug in the connector X6.

Analogue control panel connection (optional)

Plug in the connector X6.

Window switch connection (optional)

Split the jumper (contact 3 / 4) from the bushing X7. Cut off
the two plug contacts from the cable of the window switch
and connect to the contact 3 / 4. Any polarity.

Gas connection

The 30 mbar operating pressure of the gas supply must
correspond to the device's operating pressure (see type
plate).
The Ø 8 mm gas supply duct must be attached to the gas
connection with an olive screw connection. Carefully counter-
hold with another wrench when tightening.
The gas connection on the device may not be shortened or bent.
Before connecting to the device, please ensure that the gas
ducts are free of dirt, shavings and the like.
The ducts must be routed in such a way that the device is
easy to remove for service work.
The number of separation points in the gas supply line in
rooms used by persons must be limited to the technical
minimum.
The gas system must comply with the technical and admin-
istrative regulations of the respective country of use (e.g.
EN 1949 for vehicles in Europe). The national laws and regu-
lations (e.g. DVGW Worksheet G 607 for vehicles in Germany)
must be observed.

Function check

The leak tightness of the gas supply line must be tested using
the pressure drop method after installation. A test certificate
must be issued (e.g. in accordance with DVGW Worksheet
G 607 for vehicles in Germany).
Then check all device functions as described in the operating
instructions.
The operating instructions must be handed over to the vehicle
owner.
The year when the equipment was first put into oper-
ation must be indicated with a cross on the type plate.
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