81
MCB
Rating
Output Wire Colour
Description
1
10 Amps
White
230V Sockets
2
16 Amps
White (Yellow for heater)
Extra 230V Sockets / Heating System
3
10 Amps
Black (Blue for Whale
water heater)
Fridge / Charger / Auxiliary devices / Whale
Water Heater
3. System Technical Information
The following section provides further technical
information relating to the electrical system.
You can also access the supporting technical
manual from www.sargentltd.co.uk
3.1 Residual Current Device & Miniature
Circuit Breakers
The Residual Current Device (RCD) is basically
provided to protect the user from lethal electric
shock. The RCD will turn off (trip) if the current
flowing in the live conductor does not fully
return down the neutral conductor, i.e. some
current is passing through a person down to
earth or through a faulty appliance.
To ensure the RCD is working correctly, the
test button should be operated each time the
vehicle is connected to the mains supply (see
section 2.3)
The Miniature Circuit Breakers (MCB’s) operate
in a similar way to traditional fuses and are
provided to protect the wiring installation from
overload or short circuit. If an overload occurs
the MCB will switch off the supply. If this occurs
you should investigate the cause of the fault
before switching the MCB back on.
The following table shows the rating and circuit
allocation for the three MCB’s
SWIF T COMMAND
POWER CONTROL SYSTEM
ELEC
TR
IC
AL S
YS
TEMS
3.2 Battery Charger
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 and then connect the
electrical load. When stopping the generator,
disconnect the electrical load and let engine
stabilise before switching off.
Whilst some generators use electronic inverter
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 on the PSU
may illuminate when using a Generator. This is
a normal side effect when using some types
of generator. Instead of connecting the neutral
conductor to earth, some generators centre
tap the earth connection making both 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.
Summary of Contents for Select 122 2020
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Page 32: ...31 EN RO U T E EN ROUTE Fix Go tyre repair kit 32 Cruise Control 34 Parking Sensors 34...
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Page 42: ...41 A RRI VAL AT SI T E ARRIVAL AT SITE Positioning the motorhome 42...
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Page 130: ...129 M O T O RH O ME C ARE Select 164 rear bed BED MAKE UP...
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Page 139: ...138 JACKING POINTS Jacking Point Van Conversion T EC H NIC AL INF O RM AT IO N...
Page 145: ...144 T EC H NIC AL INF O RM AT IO N...