PN: 123-194, Rev. F
Page 8 of 44
Note:
It is important to retain the designed vapor concentration within the
compartment to insure complete fire outage. Upon discharge, engines(s) and all
powered ventilation (blowers) must be shut down.
Supervisory Pressure Switch
Sea-Fire “FG” and “FD” series extinguishers are equipped with a factory installed
pressure switch which is intended for cylinder pressure supervision and may also
be used to control other electrical functions (engine shutdown, air exchange
equipment etc.).
When using the pressure switch as an electrical disconnect for any equipment
shutdown function, a means of overriding (bypassing, shunting) the pressure
switch must be provided in order to return the affected equipment to an
operational mode after extinguisher discharge has occurred.
The pressure switch is a single pole single throw (SPST) type that is normally closed
(NC) with the system in the charged condition. Discharge or loss of system
pressure will release the contacts to an open state thereby cutting off any
electrical current flow.
NEVER USE PRESSURE SWITCH FOR ELECTRICAL LOADS OVER RATED CAPACITY.
Switch Specifications
4.0 AMPS at 12 VDC, 2.0 AMPS at 28 VDC
For applications requiring larger load capacities, contact the factory.
System Status Indicator Light Operation
All Sea-Fire pre-engineered fire suppression systems approved for marine applications
are packaged with an indicator light and faceplate. The indicator light (unless replaced
by another Sea-Fire device: i.e.: display panel) must be installed for system supervision
and operator awareness. When properly installed, activation of electrical power to the
system will illuminate the light indicating normal charge condition. System discharge
or loss of pressure will immediately turn off the indicator light. In the event that the
indicator light is not lit when power is applied, check for the following conditions:
1.
Check pressure indicator gauge for proper range.
2.
Check fuse and indicator light and replace if defective (lamp replacements
available from factory).
3.
Check for loose electrical connections.
4.
Remove and weigh system cylinder as described in
System Maintenance
Section
of the manual.
Light Kit Available Options
Part No.
Description
130-117
12 VDC Green Light
130-118
24 VDC Green Light
130-394
12 VDC Green LED
130-395
24 VDC Green LED
Содержание FD 1001-1500
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