Electrical Connections - Valeo Thermo S 160 Einbauanweisung

Thermo S 160/230/300/350/400
10

Electrical connections

10.1. Heater hook-up
Warning!
Disconnect the electrical connections to the vehicle and to the tem-
perature sensor prior to opening the heater.
The hook-up of the heaters is to be performed acc. to system wiring
diagram shown in Figure 20 or Figure 21.
Any plug designs that differ from the standard versions are to be
requested separately from Spheros.
Before heater installation the ripple voltage level at the interface to the
heater shall be checked. It must not be higher than 2 Vss. Otherwise a
reduced service life of the electric and electronic components must be
expected.
ATTENTION:
The indicated wire cross sections are to be observed.
The negative and positive poles of the heater control unit must be
connected directly to the battery.
Route the electrical cables so their insulation will not be damaged
(i.e. wedging, temperature exposure, kinks, chafing).
Unused connectors must be protected by dummy plugs.
10.2. Connecting the controls
The heater can be switched on and off using the following Spheros
controls:
– Switch, see system wiring diagram Figure 20
– Timer, see system wiring diagram Figure 21
High Voltage!
Danger to Life!
10.3. Control module
The control module is installed in the heater.
10.4. Economy mode
The connection of the economy mode switch is shown in the system
wiring diagram, Figures 20 and 21.
The terminal „operation mode" allows to lower the switching threshholds
in the parking heat operation mode. There are three signal levels:
UB, ground and without signal.
This makes possible in the parking heat operation mode to change bet-
ween 3 operating modes with its own upper and lower temperature
threshold each:
Normal without signal
Economy mode 1 operating voltage +20.5...30V
Economy mode 2 Ground
Electrical connections
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