EC176 Power Control System
Issue 1
Page 7 of 12
13 July 2018
9
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S
ys
tem
Info
Here you can view the control panel model number (i.e.
EC361
). Note that the
software version number is also shown in the top right.
Pressing the levels
button to move to the first screen.
SARGENT EC361
LCD Control Panel
The system can display a number of warnings. The control panel will beep and display the appropriate
message. Press the levels
button to cancel the warning. See 4.6 for further details.
4 System Technical Information
The following section provides further technical information relating to the electrical system.
4.1 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
MCB
Rating
Description (cable colour)
1
10 Amps
230V Sockets / Cooker (white)
2
16 Amps
Combination water heater / central heating system (yellow) / Extra 230V
Sockets (white)
3
10 Amps
Fridge (black) / 12V Charger (internally connected)
4.2 Battery Charger
The EC176PSU incorporates a fixed voltage battery charger / power converter. The battery charger /
power converter also powers the leisure equipment when the mains supply is connected. This module
supplies 13.8V DC to the leisure equipment up to a maximum of 12 Amps (155 Watts), therefore the
available power is distributed between the leisure load and the battery, with the leisure load taking
priority as per the following example:
Leisure load
Available power for battery charging
3A
9A
6A
6A
9A
3A
12A
0A
