12 V Voltage Supply; Room Temperature Sensor; Control Panel / Air Conditioning System; Function Test - Truma Combi E CP plus ready Einbauanweisung

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 unit from power supply before starting to work on
electrical components. Switching off at the control panel is
insufficient!
The equipment must be disconnected from the on-board
power supply when electric welding work is being carried out
on the body.
The device is equipped with reverse polarity protection.
The LED indicator will not work if the device is con-
nected with incorrect polarity. The unit can be used after
establishing proper polarity.
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 cable ( 2 x 4 mm² with lengths exceeding 6 m).
Voltage drops in the supply line must be taken into considera-
tion 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. For the
connections (40, 41), we recommend 6.3 mm fully insulated
flat connectors.
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 Vss. We rec-
ommend the automatic chargers from Truma for the different
application cases. Please contact your dealer. Other chargers
may be used only with a 12 V battery as a buffer.

Room temperature sensor

Attach plug of connecting cable to connection (46) (no need
to observe polarity).

Control panel / air conditioning system

The following connecting combinations are possible.
Analogue control panels
1 CP classic Combi CP plus ready
control panel (heater without electrical heating
elements)
or
1 CP E classic power Combi E CP plus ready
selector switch (heater with electrical heating
elements)
Digital control panels
1 CP plus Combi (E) CP plus ready
control panel (heater with / without electrical
heating elements)
and
1 Air conditioning Suitable systems – see
system CP plus control panel operating
instructions
Insert the plug of the connecting cable into one of the
connections (47 or 48) and engage.
18
230 V ~ voltage supply
(Combi E – with electrical heating elements)
~
The 230 V electrical connection must always be
made by an expert (in accordance with VDE 0100,
part 721 or IEC 60364-7-721, for example, in Germany). The
instructions shown here do not constitute a request to non-
experts to make the electrical connection but serve as addi-
tional information for an expert who is employed to do the
work!
It is imperative for the connection to be made with care using
the correct colours!
An insulating device for providing all-pole insulation from
the mains with contact clearance of at least 3.5 mm must be
provided by the customer for carrying out maintenance and
repair work.
Make connection to power supply by attaching 150 cm long
silicon cable to a line that is protected with as least 10 A (16 A
would be better).
Fig. 23
All cables must be secured with clamps.

Function test

The 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 Work Sheet G 607
in Germany).
Then test all functions of the unit as described in the operating
instructions, particularly the drainage of the water contents.
There shall be no claims under guarantee for damage
caused by frost!
The operating instructions must be handed over to the vehicle
owner.

Warnings

The installer or vehicle owner must apply the yellow sticker
with the warning information, which is enclosed with the
appliance, to a place in the vehicle where it is clearly visible to
all users (e.g. on the wardrobe door)! Ask Truma to send you
stickers, if necessary.