p/n 725.0001 REV 3.0
© 2023 TCW Technologies, LLC.
4
3.
Mount the IBBS system to structure in a suitable area of the aircraft utilizing the
practices identified in AC 43.13-2A/1B. Ensure the mounting points and fasteners
are suitable for the weight of the IBBS unit, consult the specifications for details. Do
not mount the IBBS in the firewall forward area. Select an area that is accessible
to allow for future battery servicing. The preferred operating temperature range of
the system is -40 C° to 60 C°, the effective charging temperature range is -40 C° to
40 C° with extended charging times below 0 C°. Select an installation location that
takes these temperatures into consideration.
Note: Rechargeable lithium cells are capable of generating hazardous emissions when
defective or subject to physical or operational abuse. Although the IBBS system is
protected from abusive failure conditions and includes a variety of fail-safe mechanisms,
conditions may occur that could cause a Thermal Runaway (TR) event resulting in the
venting of smoke or fumes and/or liquid from the designated vent port. The vent port must
be routed to the bottom or side exterior of the aircraft via the vent hose.
Locate a suitable flat location measuring at least 3.3
”
x 12
”
in area, or in an existing
avionics rack for mounting the IBBS enclosure.
The mounting area must meet one of the following requirements:
i.
A piece of 2024-T3 or T42 (alternate 6061-T6 or T62) sheet aluminum at least
0.050” thick material minimum.
Supported by at least 4 fasteners on at least two opposite edges with a
ma
ximum unsupported panel dimension of 12” in one direction and a 15” in the
other direction.
ii.
Existing support brackets or rails that are
at least 0.032” thick that are part of an
avionics rack and form a flat surface for mounting.
Important mounting notes:
a. The IBBS unit must be installed in the horizontal axis with respect to the
mounting base plate of the unit.
b. Ensure there is sufficient clearance around the IBBS unit for the wiring harness
and vent hose, and ensure sufficient clearance to fuel tanks, fuel lines, oxygen
lines or any other critical systems.
c. Visually inspect the IBBS unit to ensure no damage has occurred to the unit
prior to installation. Do not deform the unit enclosure by means such as drilling,
bending or cutting of the enclosure. Do not open or modify the IBBS unit in any
manner.
