Vitrifrigo C51i Sea Classic Notice D'emploi page 33

INSTRUCTIONS FOR DANFOSS BD35/BD50F
12-24 Vcc / 110-240 Vca
The electronic unit is a multi voltage device. It can
be used in both 12V/24V DC and 100-240V AC 50/
60Hz power supply systems. Max. voltage is 17V
DC for a 12V DC system and 31.5V DC for a 24V
DC power supply system. Max. voltage is 265V AC
and min. 85V AC for an AC power supply system.
Max. ambient temperature is 55°C. The electronic
unit has a builtin thermal protection which is
actuated and stops the compressor operation if the
electronic unit temperature becomes too high (100°C
/ 212°F on the PCB). Power consumption is
limited to 100W. See datasheet BD50F for details.
Installation (Fig. 1)
Connect the terminal plug from the electronic unit to
the compressor terminal. Mount the electronic unit
on the compressor by snapping the cover over the
screw head (1).
Power supply (Fig. 1)
DC: The electronic unit must always be connected
directly to the battery poles (2). Connect the plus to
+ and the minus to -, otherwise the electronic unit
will not work. The electronic unit is protected
against reverse battery connection. For protection of
the installation, a fuse (3) must be mounted in the +
cable as close to the battery as possible. It is
recommended to use 15A fuses for 12V and 7.5A
fuses for 24V circuits. If a main switch (4) is used, it
should be rated to a current of min. 20A. The wire
dimensions in Fig. 2 must be observed. Avoid extra
junctions in the power supply system to prevent
voltage drop from affecting the battery protection
setting.
AC: The wires must be connected to the terminals
marked L and N on the electronic unit. Nominal
voltages from 100 to 240 VAC 50/60Hz. Upper
safety cut-out limit = 270V AC and lower limit 80V
AC. A 4A fuse (11) must be mounted in the live (L)
cable to protect the installation. If a main switch
(12) is used, it should be rated to a current of min.
6A. The wire dimensions must be min. 0.75 mm2 or
AWG 18. NB: Earth connection can be used if
required.
General: Both the AC and the DC power supply can
be connected to the electronic unit at the same time.
In this case, AC will be preferred power supply
source. If the AC power supply is disconnected or
drop below 85V AC on a 12V DC supply system, a
time delay of 1 min. will be activated before the
compressor continues on DC power supply. If AC
power supply is re-established there will be no delay
in compressor operation.
Battery protection (Fig. 1)
The compressor is stopped and re-started again
according to the decided voltage limits measured on
the + and - terminals of the electronic unit. The
standard settings for 12V and 24V power supply
systems appear from Fig. 3. Other settings are
optional if a connection which includes a resistor (9)
is established between terminals C and P. See
manual.
Thermostat (Fig. 1)
The thermostat (7) is connected between the
terminals C and T. Without any resistor in the
control circuit, the compressor will run with a fixed
speed of 2,000 rpm when the thermostat is switched
on. Other fixed compressor speeds in the range
between 2,000 and 3,500 rpm can be obtained when
a resistor (8) is installed to adjust the current (mA)
of the control circuit. Resistor values for various
motor speeds appear from Fig. 5.
Fan (optional, Fig. 1)
A fan (5) can be connected between the terminals +
and F. Connect the plus to + and the minus to F.
Since the output voltage between the terminals + and
F is always regulated to 12V, a 12V fan must be
used for both 12V and 24V power supply
systems. The fan output can supply a continuous
current of 0.5Aavg. A higher current draw is allowed
for 2 seconds during start.
Lamp (optional, Fig. 1)
A 12V DC 5 Watt lamp (10) can be connected
between the terminals A and C. The output voltage
between the terminals A and C is always regulated to
12V DC. A 12V DC lamp must be used for both
12V and 24V power supply systems.The lamp
output can supply a continuous current of 0.5Aavg.
LED (optional, Fig. 1)
A 10mA light emitting diode (LED) (6) can be
connected between the terminals + and D. If the
electronic unit records an operational error, the
diode will flash a number of times. The number of
flashes depends on what kind of operational error
was recorded. Each flash will last ¼ second. After
the actual number of flashes there will be a delay
with no flashes, so that the sequence for each error
recording is repeated every 4 seconds.
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