Electrics
40
indicator associated with the pump chosen,
will illuminate when the pump is on.
Entry Light switch
This switch energises an internal entry light.
Battery / Water test switch
This switch should be pressed to the battery
position to test battery voltage or the water
position to test the water remaining in the
inboard tank.
12V Isolation Switch
This switch will effectively isolates 12 volt
power to all dc circuits by opening a relay.
This switch should be used only when
wishing to isolate power for reasonably short
periods (e.g. when going out for the day).
For isolation during storage the Car/Van
switch on the ESM2000 unit should be used
(place Car/Van switch to the centre 'off'
position).
Note: On models with ALDE central heating
the isolation switch excludes the heating
system.
REMOTE CONTROL INSTRUCTIONS
Some models are equipped with a remote
control unit which allows the user to isolate
the caravan outputs from the battery, using
button II, whilst still maintaining the charging
of the battery (when connected to a mains
supply). It can also switch on the entry light
inside the caravan, using button I.
1. Button I controls the first light inside the
caravan.
2. Button II controls the isolation of the 12 V
systems.
Overriding the remote control is possible by
using the two switches located on the
control panel above the door. These
switches should be left in the OFF position
when using the remote control during normal
operations.
Important Note: Ensure that the polarity of
the caravan battery is correct, as reverse
connecting the battery may damage the
control unit.
Switching current should be limited to 1.0
Amp DC at 12 V.
On the rear of the control is a UH number,
make a note of this and remove. This
number is to be used when obtaining a
replacement or additional control.
ESM 2 ELECTRICAL SUPPLY
MODULE
The ESM 2 Electrical Supply Module from
Plug-In-Systems Ltd is a 230V mains and
12V DC power supply unit, providing all the
necessary features for supply of electric in
your caravan. The unit provides the following
important features.
Connections
Plug & socket input/outputs
Mains 230V AC
Mains module with
Earth leakage protection (RCD)
Overcurrent protection (MCBs)
12V DC
Fully automatic transformer/charger with
Overcurrent protection
Short circuit protection
Charger on/off switch
UNIT DESCRIPTION
Mains Module
The ESM 2 is designed to operate on a
mains supply of 185-265 volts ac (making it
ideal for use with low continental voltages).
The 40 amp RCD (Residual Current Device)
gives protection against earth faults and also
acts as the main switch.
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