User Manual Part 1
Page 2-9
16 Sep 2015
23-15-29
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
JetWave™ System
© Honeywell International Inc. Do not copy without express permission of Honeywell.
The KRFU must be electrically bonded to the airframe through contact with the base of the unit as
follows:
• At least one of the four mechanical attachment points must be used for electrical
bonding.
• Make sure that the mating surfaces are free from contaminants such as paints or
other non-conductive elem
ents.
• A circular or elongated conductive area must be provided aro
und the mounting hole of
the equipment base plate.
• A diameter of the conductive area must be 0.12 inch (3 mm) larger than the
diameter of the
washer.
• The KRFU must include a 0.59 inch (15 mm) diameter bonding measuring point on one
of the attachme
nt tabs, as near as possible to the bonding element, but not on the
bonding element.
The KRFU bonding resistance measured from the measuring point and the surface upon which the
unit is mounte
d, must be less than 2.5 mΩ.
The KRFU bonding and KRFU interconnection details from and to either the TMA or FMA are
detailed along wiht the TMA or FMA installation instructions in subsequent sections.
F. KRFU Thermal Pad Kit
(1) General
(a) The thermal pad kit, PN SCD-90402388, is intended to provide a conduction interface
between the
bottom surface of the KRFU conduction units of two configurations, PN
90401203 and PN 90402346, and airplane cold plate or mounting panel. Before
mounting units on airplane the thermal pad must be installed on the units.
(2) Kit contents
(a) The thermal pad kit, PN SCD-90402388, contains the parts identified in Table 2-3.
(3) To install the thermal p
ad kit, do as follows:
(a)
Turn the KRFU conduction unit over to expose bottom side.
(b) The thermal pad kit is made up of two different pads. The
re is a clear backing material
protecting the tacky side of the pads and a white opaque backing material protecting the
non-tacky side of the pads.
(c) Remove the clear protective backing to expose the tacky side of the thermal pad PN
MPW000011
8.
Table 2-3. Thermal Pad Kit Contents
PN Description Quantity
MPW0000118 Thermal pad, conduction, 60 Mil T-Flex Ka airborne, Part 1 1
MPW00
00122 Ther
mal pad, conduction, 60 Mil T-Flex Ka airborne, Part 2 1