Kidde Fire Systems Surge Protector P/N 81-CO2MAN-001 Manual De Usuario
Component Descriptions
P/N 81-CO2MAN-001
2-19
September 2013
2-3
ACTUATION COMPONENTS
Actuation of the suppression system is initiated by use of control head(s). Control heads are
components that attach to the control ports of the carbon dioxide cylinder valves. The control
head initiates the suppression system discharge by opening the cylinder valve's pilot check.
This allows carbon dioxide to pressurize the discharge head piston, which opens the main check
in the valve and discharges the contents of the cylinder.
One control head is used for CO
2
systems having one or two cylinders. A minimum of two
control heads are required for suppression systems that have three or more carbon dioxide
cylinders.
Control heads are also used in conjunction with pressure operated time delays, stop valves,
and pneumatic transmitters to control the flow of carbon dioxide throughout the piping
network. All of the control heads are self-venting in the set position to prevent accidental
discharge in the event of a slow build-up of pressure in a pilot line or a slow leak at the pilot
check of the cylinder valve.
2-3.1
Lever-Operated Control Head
The lever-operated control head, Part No. WK-870652-000 (Figure 2-20), is used for small,
manually-actuated suppression systems using one or two carbon dioxide cylinders. It is also
used as an emergency manual release device for pressure operated control heads and used in
conjunction with components such as pressure operated time delays and directional (stop)
valves.
This control head is equipped with an operating lever secured in the closed position by a safety
pull pin and seal wire. The lever can be rotated to the open position by removing the safety
pin. This will discharge a cylinder, bypass a time-delay period, or open a directional (stop)
valve.
WARNING
Control heads must be in the set position before attaching to the cylinder valves
to prevent accidental carbon dioxide discharge.