Installation Instructions; Legal Provisions - Webasto Thermo Top Installation Instructions Manual

Installation instructions

Legal Provisions for Installation
For testing the heater in accordance with articles 19, 20 or
21 of the StVZO the following regulations are primarily to
be observed (art. 22a StVZO):
NOTE:
These provisions are binding within the scope of the
StVZO and should also be observed in countries
where no special regulations are in effect!
Within the scope of the StVZO (German Road Licensing
Regulations) "General Design Certifications" have been
granted by the Federal Office for Motor Traffic for the
Thermo Top
water heaters with the following design ap-
proval numbers:
Thermo Top
S 238 for the - Patrol heating device,
~
type BW 50
Thermo Top
S 239 for the - Diesel heating device,
~
type DW 50
The installation of the heaters must be performed in ac-
cordance with these Installation Instructions. The installa-
tion must be checked
a) upon the homologation of the vehicles in accordance
with § 20 StVZO
b) upon any individual test in accordance with
§ 21 StVZO, or
c) upon any examination in accordance with § 19 StVZO
by a registered expert or examiner for motor traffic, an
expert for automotive vehicles, or any other authorised
official, in accordance with paragraph 4 of
Appendix VIIIb to the StVZO
and in the case of item c) the proper installation must be
certified on the approval certificate contained on the de-
sign certification stating the following:
- vehicle manufacturer
- vehicle type and
- vehicle identification number
The effectiveness of the design certification (homologa-
tion) is dependent on this certificate. The approval certifica-
tion is to be kept in the vehicle.
The year of the initial operation must be durably marked
on the type plate of the heater by the installer by removing
the years that do not apply.
Extracting the combustion air from the interior of the
vehicle is not permissible.
The exhaust pipe must be so mounted that its discharge
opening points downward, sideways or, in the case of rout-
ing the exhaust pipes on the underside of the bottom of the
vehicle, their discharge opening must be positioned near
the lateral or rear edge of the driver's cab or vehicle.
Exhaust pipes must be routed in such a way that exhaust
gases cannot penetrate the interior of the vehicle. The
function of any parts of the vehicle essential for its oper-
ation must not be impaired.
The openings of the combustion air inlet and exhaust gas
outlet must be so designed that a spherical object of 16
mm diameter cannot be introduced.
Electric lines, switchgear and controlgear of the heater
must be so arranged in the vehicle that their proper func-
tion cannot be impaired under normal operating conditions.
For the routing of fuel lines and the installation of addi-
tional fuel tanks articles 45 and 46 of the StVZO are to be
adhered to. The most important excerpts therefrom are as
follows:
Fuel lines are to be designed in such a way that they re-
main unaffected by torsional stresses in the vehicle, en-
gine movement and the like. They must be protected
against mechanical damage. Fuel-carrying parts are to be
protected against excessive heat and are to be arranged
such that any dripping or evaporating fuel can neither col-
lect nor be ignited by hot components or electrical equip-
ment.
Thermo Top
The heater must not be installed in passengers areas.
The operating state of the heater at any given time - i.e. at
least an indication as to whether it is "on" or "off" - must be
easily recognizable.
The installation of components that are not of an approved
type will lead to the invalidation of the General Design Cer-
tification of the heater and thus the General Operating Per-
mission of the vehicle. The same applies to improperly per-
formed repairs or those where other than genuine replace-
ment parts were used.
Use of the Water Heater
Thermo Top
The Webasto water heater in conjunction
with the vehicle heating system is used for
- heating the driver's cab,
- defrosting the vehicle's windows as well as
- preheating water-cooled engines.
The water heater operates independently of the vehicle en-
gine and is connected to the cooling system, the fuel sys-
tem and the electrical system of the vehicle.
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