Room Temperature Sensor Installation; Installing The Control Panels; Electrical Connections - Truma Combi E CP plus ready Einbauanweisung

Room temperature sensor installation

When choosing a location, please note that the room temper-
ature 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.
Fig. 19
Please ensure that the sensor is attached to a vertical
wall. There must be a free flow of interior air around the
sensor.
Drill hole with diameter of 10 mm. Lead connecting cable
through hole from the rear, and connect end of cable to sen-
sor using an insulated connector (polarity is irrelevant). Slide
in room temperature sensor and route end of cable with the
two insulated connectors to the heater electronics (lengthen
cable to a maximum of total length of 10 m with 2 x 0.5 mm²
cable if required).
The provided room temperature sensor must always be
connected, otherwise the heater will switch to fault.

Installing the control panels

The installation of the control panels is described in the
instructions included with the control panel.

Electrical connections

Route connecting cables in such a way that they cannot
chafe. Please also use leadthrough bushings or edge protec-
tion profiles where there are sharp edges such as metal panel
leadthroughs. The connecting cables must not be attached to
or come into contact with metal surfaces, the exhaust duct or
warm air ducts.
The electrical connections are located beneath the heater con-
nection cover (39). The cover can be removed by pressing and
simultaneously sliding it in the direction of the arrow. When
removing or installing the connection cover, ensure that the
connecting cables are not pulled out or become pinched.
10 mm
39
40
12 V
41
Fig. 20
40 = Input voltage +12 V (spade connector 6.3 mm)
41 = Input voltage -12 V (spade connector 6.3 mm)
42 = FrostControl heating element (accessory)
43 = Device fuse 10 A (slow-acting) (T 10 A)
44 = Wire bridge (or window switch – accessory)
45 = Time switch ZUCB (accessory – only in combination
with analogue control panels)
46 = Room temperature sensor
47 = Control panel / diagnostic connector*
48 = Control panel / diagnostic connector*
* Alternative connections
All connections to the unit should be made with sagging
connecting cables. This will prevent condensation water from
running down the connecting cables and into the unit.
Fig. 21
The connecting cables and plugs must not be subjected to
force. Bundle connecting cables (see figure) and secure each
one to housing using a cable binder in order to provide strain
relief.
All cables must be securely attached and must not become
loose or disconnected due to vibration – risk of fire!
Fig. 22
open
42 48
44 46
43 45 47
17