Auto-Sleepers warwick duo 2008, User Manual

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7-15
CONNECTION OF SERVICES
BATTERY
Type/Selection
For optimum performance and safety it is
essential that only a proprietary brand
‘leisure’ battery is used with a typical capacity
of 75 to 120 Ah (ampere/hours). A normal car
battery is NOT suitable. This battery should
always be connected when the system is in
use.
The EC155 PSU is designed to charge
standard lead acid ‘leisure’ batteries,
however it may be used with Gel batteries
depending on their composition. Please
consult the battery documentation for further
advice.
The battery feed is fitted with an inline fuse
between the battery and the electrical
harness, and is usually located immediately
outside the battery compartment or within
500mm of the battery. The maximum rating of
this fuse is 20A per battery.
Installation & Removal
Always disconnect the 230V mains supply
and turn the EC155 PSU charger switch to
the OFF (0) position before removing or
installing the battery.
When connecting the battery, ensure that the
correct polarity is observed (black is negative
[-] and red is positive [+]) and that the
terminals are securely fastened. Crocodile
clips must be used.
WARNING
Explosive gases may be present at the
battery. Take care to prevent flames and
sparks in the vicinity of the battery and do
not smoke.
Operation/Servicing
Under normal circumstances it should not be
necessary to remove the battery other than
for routine inspection of the terminals and
“topping up” of the battery fluid where
applicable. Please see instructions supplied
with the battery.
Note: Do not over-discharge the battery. One
of the most common causes of battery failure
is when the battery is discharged below the
recommended level of approximately 10V.
Discharging a battery below this figure can
cause permanent damage to one or more of
the cells within the battery.
To prevent over discharge, the EC155 PSU in
conjunction with the EC50 series control
panel incorporates a battery protect circuit
that warns and then disconnects the batteries
when they fall below the following conditions:
Vehicle battery voltage cut off point: 10.9V.
Action after cut off: Battery selection is
changed from vehicle battery to leisure
battery. If the leisure battery is below 9V then
a further warning will occur (see following).
Notes: This cut off level is designed to
protect the vehicle battery from over
discharge. The 10.9V level ensures there
is sufficient power in the battery to run
the vehicle electronics and start the
vehicle. This cut off only applies to power
drawn from the battery by the leisure
equipment; it will not protect the battery if
you leave the vehicle lights on.
Leisure battery cut off point: 9V.
Action after cut off: Power is turned off.
Notes: This is an emergency cut off level
to protect the battery from severe
damage. You should not rely on this cut
off level during normal operation, but
manage your power consumption to a
discharge level of 10V.
This cut off only applies to power drawn
from the battery by the leisure equipment
that is controlled by the control panel
power switch; it will not protect the
battery from discharge by the radio or
other permanently connected equipment.