2-52 CHASSIS MODIFICATIONS E UROCARGO Euro 4/5 Installation of a supplementary heating system 2.11 Installation of a supplementary heating system When the installation of a supplementary heating system is deemed necessary, it is advisable to use the types recommended by IVECO. For vehicles on which IVECO has not planned the use of supplementary heaters, the installation should be carried out in compliance with the supplier’s instructions (i.e. heater arrangement, piping, electrical system etc.) and following the directions given below. All national rules and regulations relevant to the matter should be adhered to (i.e.
inspections, particular installation for dangerous cargo transportation etc.). The supplementary heating system must not make use of the equipment that is specific to the vehicle which is subject to approval if the use is liable to impair or alter the performance of the equipment. Furthermore: - ensure correct operation of the vehicle components and equipment (i.e. cooling system); - check the electrical system to ensure that the battery capacity and alternator output is sufficient for the higher current require- ments (see point 2.16).
Provide the new circuitry with a protection fuse; - connect the intake of the newly added fuel system to the reservoir connected to the engine fuel return line. Direct feed from the vehicle fuel tank is permitted only if this is independent from the engine fuel system and the new circuit is perfectly leakproof; - trace pipe and cable paths, the location of brackets and hoses bearing in mind that the overall dimensions and heat affect the various units on the chassis. Avoid runs and arrangements that could lead to hazards when the vehicle is running.
Use shields or armouring if necessary; - when installing a water heater, original vehicle heating and engine cooling circuits are involved (see point 2.10), it is advisable to follow the instructions listed below to ensure reliability of the heating system and safe operation of the original system:
- special care must be taken when defining the connections between the supplementary equipment and the main one; refer to IVECO, if necessary; - determine a rational arrangement for piping, avoid neckings and siphonings; - install proper venting valve (bleeding points) to ensure proper filling of the system; - supplementary plugs should be installed to ensure draining of the system, if necessary; - proper insulation should be used to prevent heat dissipation - When air heaters are used and when the installation is to be made directly in the cab, make sure that the engine exhaust system does not touch the added installation (to prevent exhaust gas circulation inside the vehicle) and have the correct warm air dis- tribution by avoiding direct air flows; - the complete installation should be designed to ensure good accessibility for quick and easy servicing.
Installation of a supplementary heating system Base - January 2008 Print 603.93.431