Intellitec Battery Disconnect BD0 Service Manual page 6

B TTERY DISCO
THE SYSTEM
A typical motor home may use one or two relays to disconnect the batteries. These relays are
usually independent and operate from a switch panel located inside the coach. A harness is
used to connect from the panel to the relays. The Intellitec panels are offered in four models.
They are:
BD0 - Single battery system, with a cable and monitor panel with an on/off indicator
BD0 (BLACK/SILVER) 01-00066-004
BD0 (BROWN/GOLD) 01-00066-000
BD1 - Single battery system, with a cable and monitor panel with an on/off indicator and digital
voltmeter
BD1 (BLACK/SILVER) 01-00066-005
BD1 (BROWN/GOLD) 01-00066-001
BD2 - Dual battery system, with cable and monitor panel with two on/off indicators and ignition
interlock relay.
BD2 (BLACK/SILVER) 01-00066-006
BD2 (BROWN/GOLD) 01-00066-002
BD3 - Dual battery system, with cable and monitor panel with two on/off indicators, digital
voltmeter, and ignition interlock relay.
BD3 (BLACK/SILVER) 01-00066-007
BD3 (BROWN/GOLD) 01-00066-003
Note: BD0 panel can be interchanged with BD, and BD2 can be interchanged with BD3
The dual relay panels include an ignition interlock relay that opens the power circuit to the
chassis battery relay when the ignition is turned on, to prevent the battery from being acci-
dently opened when the engine is running.
A typical circuit is shown in FIGURE 5 and FIGURE 6. The switches are each double pole,
double throw, momentary, center off. Operating the switch in either direction will cause the
relays to open or close, depending on the polarity of the voltage applied.
FUSES
There are two 5 Amp fuses for the system, mounted on each relay. Looking at the relay with
cap at the top, the fuse on the right feeds the LED indicator and, if so equipped, the digital
voltmeter. The fuse on the left feeds the power to the switch that operates the solenoid.
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6
ECT
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