Valeo Thermo plus Erstinbetriebnahme

TECHNICAL INFORMATION
Initial start-up of:
Thermo plus, Thermo E, Thermo S and Thermo Heaters
It is mandatory to read through the operating and maintenance instructions as well as the installation instructions
before starting the heater.
The safety precautions given in the above mentioned documents must be considered!
The heaters are adjusted in the factory and can be used unlimited without a change of the CO2 adjustment up to
an altitude of 1500 m above MSL and up to 2000 m above MSL if that is a short stay in such conditions (pass
crossing, break).
In case of a permanent heater operation above 1500 m the CO2 setting should be readjusted, due to a negative
change of the exhaust gas values in result of the decreased air density.
It is also recommended to adjust the CO2 content according to the technical data if combustion air supply or
exhaust gas applications are used.
The operation of circulation pumps on type Thermo plus heaters may only be carried out via relays with sufficient
current carrying capacity. For this purpose it is preferable to use corresponding Valeo adapter harnesses (see
spare parts list).
After heater installation, bleed the water system and the fuel supply system carefully. In this process it is
mandatory to fill the suction line and the fuel filter of the heater completely. Valeo recommends the usage of a
separate bleeding unit. Follow the appropriate instructions provided by the vehicle manufacturer. Verify the fuel
supplied to the heater is bubble-free.
NOTE:
Never use the fuel pump to fill / bleed the fuel system!
Generally, the hook-up of the heater to the vehicle power grid must be done only after filling/ bleeding of the fuel
system in order to prevent a premature start of the fan motor/fuel pump.
Conduct a test run of the heater to check all the water and fuel connections for leaks and to ensure that they are
secure. If the heater suffers a fault during operation, the fault must be located and remedied according to given in
the shop manual instructions.
ATTENTION:
If no fuel reaches the fuel pump during start-up (dry running), there is a risk that the fuel pump may be damaged!
| Development Heaters | Frank Belter, Danilo Daleske |
Valeo Thermal Commercial Vehicles Germany GmbH
Friedrichshafener Str. 7 – 82205 Gilching – Germany - Tel. +49 (0) 8105 7721 0 - Fax 49 (0) 8105 7721 889
www.valeo-thermalbus.com - service-valeobus@valeo.com
DOCUMENT ONLY FOR INTERNAL USE
Rev. 07-2019
IdNo DOK70113