Page: 28
FM-200® OPERATION, DESIGN, & SERVICE MANUAL
Revision F
Document # DOC102
Issued: February 1, 2009
Revised: 11-Nov-2011
40YE
Section 2 System Description and Components
2.4.4 Pressure Release Trip
P/N 20239 (See Figure 2.4.4)
e pressure release trip can be used to release dampers, close re
doors, windows, louvres, fuel supply valves, to open dump valves,
etc., automatically when the system discharges. e equipment to be
operated must be weight or spring loaded, or be pivoted o center. e
release trip is connected to the carbon dioxide discharge piping for
operation when the system discharges. A cable from the equipment
to be controlled is looped over the pressure release operating stem.
When the trip is operated, the stem retracts and the cable is released.
e maximum load that can be hung on the piston stem is 35 lbs
(15.88 kg).
2.4.5 Discharge Indicator
P/N 20238 (See Figure 2.4.5)
e Janus Fire Systems® Discharge Indicator acts as a nonelectrical
visual indicator of system actuation. It is actuated through discharge
pressure and remains in the upright (discharged) position until
manually reset.
Upon system actuation, pressure within the discharge piping
enters the discharge indicator, actuating the internal plunger. is
forces the external indication stem into the upright (discharged)
position. e stem and plunger remain in the upright position
until the discharge indicator is manually reset by depressing the
indication stem into the down (standby) position.
Figure 2.4.4 Pressure Release Trip
Figure 2.4.5 Discharge Indicator
To Next Page
Loading...