BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 252

Engine Firex Bottles
The two engine Firex bottles are installed in
the rear equipment bay.
Each bottle is a 378-cubic-inch spherical
container with two electrically operated dis-
charge ports, a thermal discharge port, and
an indicator.
The bottles are charged with Halon 1301 fire-
extinguishing agent and pressurized by dry
nitrogen at from 600 to 625 psi. Halon 1301
is odorless, colorless, and requires no cleanup.
It operates by oxygen displacement.
The electrically operated discharge ports on
each bottle are designated "RIGHT" and
"LEFT" and are connected by tubing to the
right and left engine, respectively.
The right port of each bottle is connected to
the right engine via a tee-type check valve. This
ENGINE
COMBUSTION-ZONE
SENSING ELEMENT
TO FIRE BELL
Figure 8-3. Engine Fire Detection System
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
CL-600-2B16 PILOT TRAINING MANUAL
TO MASTER CAUTION
(FIRE FAULT)
valve prevents one bottle from discharging its
contents into the other bottle (if it is empty).
The left ports are connected to the left engine
in the same manner.
The left and right ports are operated by ex-
plosive squibs electrically activated from the
cockpit. Each port contains a squib (with dual-
firing cartridges for redundancy). When fired,
a bullet penetrates a frangible disc which al-
lows the contents of the bottle to be discharged.
The squib has a shelf life of two years.
A third port, the thermal discharge port, is
operated when the pressure in the bottle ex-
ceeds 1,400 psi. Since it is assumed that this
pressure will be achieved only if there is a
fire in the area of the bottle itself, the thermal
discharge port discharges directly into the
areas of the Firex bottle installation.
L t é e
L t d .
ENGINE
COMBUSTION-ZONE
SENSING ELEMENT
CL 601-3A/R 8-5