Circulated Air Intake; Room Temperature Sensor Installation; Selecting A Location; Assembly - Truma VarioHeat Series Einbauanweisung

1. The grid on the heater's warm air outlet must be removed if
warm air distribution is being used.
2. Only the duct VR 80 may be connected to the heater.
Figure 16
VR 80
≤ 100 cm
Figure 17 – Example, Truma VarioHeat eco warm air system
In the case of the Truma VarioHeat comfort heater, the
warm air must be distributed to three lines.
VR 80
≤ 100 cm
Figure 18 – Example, Truma VarioHeat comfort warm air system
To avoid a build-up of heat, all warm air connections
must be connected.
Secure all duct connections with clips / self-tapping screws.
Fix ducts with clamps.
The warm air system is designed individually for each vehicle
type using the modular design principle. A wide range of ac-
cessories is available for this purpose (see brochure).

Circulated air intake

The circulated air (U) is drawn back in by the heater. This must
have one large or several small openings with a total area of
at least 150 cm² between the living compartment (not the rear
storage space) and the installation compartment.
Circulated air intake with grid
If a grid (not supplied) is installed, the same requirements
must be complied with for drawing in air in terms of the
cross-sectional area through which flow occurs (150 cm²).
W
U
Figure 19 – Example, circulated air intake via grid
16
1
2
VR 80
Y 80
Y 80
ÜR Y
≤ 50 cm
VR 80
U

Room temperature sensor installation

The provided room temperature sensor must always be
connected, otherwise the heater will switch to fault.

Selecting a location

When choosing a location, please note that the room tem-
perature sensor must not be subjected to direct heat radiation.
In order to obtain optimum room temperature control, install
room temperature sensor over the entrance door.
Please ensure that the sensor is always installed in a ver-
tical wall. There must be a free flow of interior air around
ÜR
the sensor.
ÜR

Assembly

– Drill a hole with diameter of 10 mm.
– Route the connector cable from the back and through the
hole, and attach the cable end to an insulated connection
plug on the sensor (no attention needs to be paid to polarity).
– Slide in the room temperature sensor and route the end of
ÜR
the cable with the bushing X7 to the heater (lengthen the
cable to a maximum total length of 10 m with 2 x 0.5 mm²
ÜR
cable if necessary).
ÜR
– Connect the room temperature sensor's cable to the heat-
er's cable harness. (see "Electrical connections").
Figure 20

Digital control panel installation

Truma CP plus VarioHeat
a Truma VarioHeat eco / Truma VarioHeat comfort heater. It
is also possible to connect a Truma air conditioning system
Aventa eco, Aventa comfort (from serial number 24084022 –
04/2013), Saphir comfort RC and Saphir compact
serial number 23091001 – 04/2012).

Description

The Truma CP plus VarioHeat control panel (with polarity re-
versal protection) is supplied with voltage via a 12 V con-
nector cable. With a connector cable (TIN bus), the control
panel is connected to a Truma VarioHeat heater and / or an air
conditioning system.
And Truma CP plus VarioHeat CI-BUS for CI-BUS – not retrofittable.
1
In combination with a Truma VarioHeat heater, a "control panel
2
cable coupling" is essential between the air conditioning system
and the heater. Order the "control panel cable coupling" sepa-
rately. Not in conjunction with a TG 1000 sinus power inverter.
X7
10 mm
digital control panel for operating
1
(from
2