Webasto Thermo 90 S Operating And Maintenance Instructions

Operating and
maintenance instructions
Thermo 90 S/ 90 ST

General Information

Dear Webasto Customer !
We assume that the workshop / service center that carried out the installion explained to
you the operation and principle of functioning of your new heater to your complete
satisfaction. This owner's handbook is designed to give you a brief summary of how to
use the Thermo 90 S / Thermo 90 ST heaters.

Maintenance and Safety Information

General type approvals have been issued in the region covered by the European
Directive 70/156/EEC for the Thermo 90 S and Thermo 90 ST heaters, which comply
with Directives 2001/56/EC (Heating systems) and 72/245/EEC (EMC).
The installation of the units must be carried out in accordance with the installation
instructions. The installation must be checked in accordance with the Legal Provisions
for Installation. For details refer to the installation instructions.
The year of the initial operation must be durably marked on the heater's nameplate by
removing the non-applicable years.
The heater must be switched off:
at filling stations and tank farms.
in locations where flammable vapours or dust may
!
accumulate (e.g. in the vicinity of fuel-, coal-, sawdust or
grain depots).
in enclosed spaces (e.g. garages). This should also be
Danger of explosions
considered when pre-setting heater operating times or
and asphyxiation
using the Telestart remote control.
Webasto Product North America, Inc.
15083 North Rd. Fenton, MI. 48430
www.webasto.us & www.techwebasto.com
The heater must not be:
exposed to temperatures greater than +85°C. Exposure
to such temperatures may cause damage to the
electronic components.
operated without a minimum level of 20% of good quality
antifreeze in the water of the heating circuit.
The heater must:
be operated using the fuel specified on the name plate and
the rated voltage specified on the name plate.
In the case of a severe build-up of smoke, unusual
combustion noises or fuel smell, the heater is to be put
out of operation by removing the fuse and may only be
restarted after being inspected by Webasto-trained
personnel.
be operated at least once a month for 10 minutes, with the
vehicle engine cold and at the lowest fan setting. The
heater should be checked annually by a qualified expert,
preferably prior to the heating season commencing.
Liability claims:
Failure to follow the installation instructions and the notes
contained therein will lead to all liability being refused by
Webasto The same applies if repairs are carried out
incorrectly or with the use of parts other than genuine
spare parts. This will result in the revocation of the type
licence for the heater and therefore the General operating
licence / EC type licence.
Liability claims can only be made if the claimant can verify
that he has complied with the servicing and safety
instructions.

Operation

Before switching the heater on, set the vehicle heating system to the "warm" position
and the vehicle heater fan to the lowest setting (less power consumption)!