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Inspection and Maintenance Procedures
If the fire detectors are functioning properly, they will pickup relay 45FTX to trip the turbine. The fire
alarm bell in the accessory compartment should ring and the fire flag on the annunciator should drop.
High Pressure System Tests
Two separate tests are necessary to ensure that the high pressure system is ready for operation. These
tests are: (1) Solenoid Pilot Valve test and (2) "Puff" test. Description of the test procedure can be found
under the Fire Protection tab of the Service Manual.
Low-Pressure CO
This system consists of a single pressure vessel, refrigeration system, gauges, alarm system and safety
vent assembly, all enclosed within a steel housing on a single, all-welded base. The refrigeration system
automatically maintains the CO
sure of 300 psi (20.6 bars).
Operation of the low-pressure CO
requires only periodic inspection and maintenance (except when fire protection service, or system mal-
function necessitates major servicing and checkout).
IMP–16
CAUTION
Any physical damage to fire detectors such as but not lim-
ited to distortion, dents, twisting will cause the fire detec-
tors to loose their calibration and serviceability. If any
physical damage is found on the fire detectors they should
be replaced.
Open flames such as propane or acetylene torches are not
to be used under any circumstances to check the operation
of detectors. The use of propane or acetylene torches
causes severe drifting or destruction of the detectors
internals.
System Electric Release and "Puff" Tests
2
in the pressure vessel at approximately 0 F (–17.7 C) and a vapor pres-
2
system is fully automatic. Once installation is complete, the system
2
**WARNING**
Carbon dioxide, in a concentration sufficient to extin-
guish fire, creates an atmosphere that will not support
life. It is extremely hazardous to enter the compart-
ments after the CO
system has been discharged. Any-
2
one rendered unconscious by carbon dioxide should be
rescued as quickly as possible and revived immediate-
ly with artificial respiration or by mouth- to-mouth re-
suscitation. The extent and type of safeguards and per-
sonnel warnings that may be necessary must be de-
signed to meet the particular requirements of each sit-
uation. It is recommended that personnel be adequate-
ly trained to cope with such an emergency.
Inspection and Maintenance
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