WATER HEATER
This switch controls 230v power to the
Truma Ultrastore water heater. This is the
only means of turning the electric element in
the water heater on or off.
CHARGER
This switch controls the charger within the
NE143-RM. As previously stated the charger
is fully automatic and does not require
switching on and off in normal operation.
However if 230v input current is limited,
turning the charger off may allow use of
other 230v appliances.
When this model of NE power supply unit is
fitted a separate 12v DC fusing arrangement
can be found at the front of the caravan
layout.
NE2006-CWS
In addition to the features of the NE143-RM
the NE2006-CWS has visible on its front face
a switch and 12v fuse module.
CAR / VAN SELECTOR SWITCH
The three way car/centre/van battery
selector switch can be used in the
following way:
CARAVAN POSITION -
When in this position DC power is available
from the caravan battery to power all 12v DC
electric circuits. If the charger is switched
on, the caravan leisure battery will be
charged via the charger. This position should
also be used when operating the fridge 12v
element whilst towing.
CENTRAL POSITION –
When in this position with the charger switch
on (and 230v supply present), power is
supplied to all 12v DC circuits via the
charger/transformer only. With the charger
off all DC circuits are isolated. Please note
that using this switch in the central position
is the only way to fully isolate 12v DC
circuits – Although the control panel (if fitted)
may feature a power ON/OFF switch, using
that control panel ON/OFF switch in the OFF
position leaves a relay energised, which
causes a small current drain.
CAR POSITION –
The switch can be placed in this position
should the caravan battery become
discharged and no 230v supply is available.
Power will be available from the tow vehicle
battery to all 12v DC circuits.
Note: First of all the towing vehicle should be
electrically connected to the caravan via the
12S socket. Care is needed to avoid
discharging the battery in the tow vehicle to
such an extent that the engine cannot be
started.
12V FUSE MODULE
Eight 12v automotive type blade fuses are
mounted on the front face of the unit, linked
to circuits relating to the habitation electrics
within the caravan. Only ever replace a fuse
with another fuse of the same rating.
The basic fuse allocation is as shown below.
Please see the electrical schematic in the
service handbook for more details.
Fuse 1: Front roof lighting
Fuse 2: Rear roof lighting
Fuse 3: Blown air heating distribution fan
Fuse 4: Radio
Fuse 5: 12v sockets / hitch light if fitted / TV
aerial amplifier
Fuse 6: Fan circuits
Fuse 7: Water system, water pumps, water
level sensor if fitted, electric flush
toilet, if fitted.
Fuse 8: Ignitions (oven etc)
Electrics
68
To Next Page
Loading...
