Page 11-14
Pilot’s Operating Manual
Revision A1: Nov, 2002
Sub-section 11
ICE PROTECTION
Hawker 800XP Pro Line 21
Section III - SYSTEMS DESCRIPTION
POWER SUPPLIES
DC power supplies to the pump and chime unit are taken from busbar PS2. Supplies to the
ANTICE LO PRESS, ANTICE LO QTY annunciators and the MWS ICE PROT repeater
annunciator is taken from busbar PE.
The fluid contents indicator is supplied from busbar PE when the airplane is on the ground, and
busbar PS2 when in flight. Switching of power supplies is controlled by a weight-on-wheels
microswitch.
L VANE
HTR FAIL
R VANE
HTR FAIL
L PITOT
HTR FAIL
R PITOT
HTR FAIL
ICE
PROT
PITOT/VANE HEAT
L
ON
R
OFF
Overhead Roof Panel
MWS Panel
1
111
3
6
9
12
v
L
R
PITOT AMPS
0
15