Amico Dome Loaded Manifold Nema-4 NFPA - Manual (Page 9)

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An electronic circuit board that controls the bank switch over.
It monitors the pressure with the help of the bank transducers
and controls the solenoid valve in order to initiate the bank
switch or changeover. The control board illuminates the ap-
propriate front panel indicators and also provides dry contacts
for the activation of a remote buzzer or external master alarm.
Power to the control board is provided by the external power
supply.
CONTROL BOARD
POWER SUPPLY
The power supply is a 120 - 240 VAC, 50-60hz, which is
mounted on the top right hand side of the manifold and is
provided with a 1 amp fuse.
DANGER: Electrical shock hazard. Ensure that the
main power source is turned off during the connection
of the power supply.
FRONT PANEL INDICATORS
Six front panel indicators monitor the status of the manifold.
Description of Parts