Swift Motorhomes 2013, Owner'S Service And Warranty Handbook

Page: 86 / 205

ELECTRICS
84
HABITATION RELAY
Tow Bar Connection
The addition of tow bar electrics requires an
electronic interface, to prevent problems with
road lighting on the base vehicle. At the rear of
the motorhome, a power supply is included in
the motorhome harness for use with a tow bar
interface. Please ask your dealer about the tow
bar and tow bar harness kit that is available for
use with this connection.
GENERATOR USAGE
Caution should be used before connecting a
generator to your motorhome.
WARNING: Never start or stop the
generator while electrical loads are
connected and switched on. Start the
engine, let it stabilise, then connect the
electrical load. To stop engine, disconnect
the electrical load and let engine stabilise
before switching off.
Whilst some generators use invertor
technology, others use a more basic principle
to generate the 230v supply. Preference
should be to choose a generator which
produces a consistent sinusoidal wave form
with accurate voltage control.
The reverse polarity warning light may
illuminate when using a generator. This is a
normal side effect when using some types of
generator. Instead of connecting the neutral
and live conductors 110v above earth. This
110v difference causes the neon polarity
indicator to illuminate.
In most cases it is safe to use a generator, but
please consult the generator handbook for
further information.
HABITATION RELAY
Habitation relays are fitted to motohomes by
manufacturers to comply with the following
legislation:
1. The Road Vehicles (Construction and Use)
Regulations 1986 Regulation 60 - Radio
interference suppression
2. Council Directive 72/245/EEC of June
20, 1972 amending for the purpose of
their adaptation to technical progress,
relating to the radio interference
(electromagnetic compatibility) of vehicles
and Council Directive 70/156/EEC on the
approximation of the laws of the Member
States relating to the type-approval of
motor vehicles and their trailers.
A habitation relay must be fitted by
manufacturers, safe guarding the consumer,
the purpose of the relay is to disable non-
homologated appliances/components whilst
the vehicle is in transit.
Unintentional electromagnetic energy can be
created by non-homologated devices within
the habitation compartment, which could
cause a malfunction of the base vehicles
electronic systems/components, including
safety critical items such as air bags, ABS
braking etc.
In your motorhome the habitational relay is
within the EC400 / 450 power supply unit.