Amico Automatic Cryogenic Liquid Solenoid Manifold - Manual (Page 10)

10 Amico Pipeline
Description of Parts
The Control Board is an electronic circuit board which 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 appropriate front panel
LED indicators and also provides dry contacts for connections to a remote
buzzer or an external master alarm. Power to the control board is provided
by the external power supply.
CONTROL BOARD
POWER SUPPLY
The power supply is 110 - 240 VAC, 50-60 Hz. It is mounted on the top
right hand side of the manifold and has a 1 amp fuse.
M i c r o p r o c e s s o r D i g i t a l M a n i f o l d
P a g e : 4
USER RESPONSIBILITY
The information contained in this Installation and Maintenance Manual, pertains only to the ALERT-2
microprocessor based digital manifold. This product will perform in conformity with the descriptions
contained in this manual when assembled, operated, maintained and serviced in accordance with the
installation instructions provided.
The manifold
must be checked periodically. Parts that are broken, missing, worn, distorted or
contaminated, must be replaced immediately. Should such repair or replacement become necessary,
please contact Amico Corporation or their distributors.
Installing CO2 and N2O manifolds outdoors. Please refer to NFPA Code: 5.1.3.3.1.8 Central
supply systems for nitrous oxide and carbon dioxide shall be prevented from reaching
temperatures lower than the recommendations of the central supply system’s manufacturer,
but shall never be lower than -7°C (20°F) or greater than 54°C (130°F).
All Manifolds should not be repaired or altered without prior written approval by Amico
Corporation or it’s distributors. Failure to comply will void all warranty on the manifold.
Statements in this manual preceded by the words
WARNING, CAUTION, DANGER and NOTE are of
special significance. Please read these sections carefully.
WARNING: denotes steps which can prevent injury.
CAUTION: denotes steps which can prevent damage to equipment.
DANGER: denotes steps which can prevent electrical shock to equipment or to
prevent serious injury and/or death.
DANGER: Electrical shock hazard. Ensure that the main power source is turned off during the
connection of the power supply.
GAS SERVICE IDENTIFICATION
Amico manifolds are clearly labeled for the intended gas use. The appropriate gas label is attached on the cabinet door.
There are two pipes extending from the top of the cabinet, one is for the main line pressure and the other is the vent for
the pressure relief valve, which is also labeled accordingly.
HEADER BAR CONNECTIONS
The gas-specific header bar should be attached to the inlet block on either side of the manifold. The inlet block is provided
with a sintered bronze filter and a “C” clip to secure it. The header bar should contain the proper gas connections and all
cylinder connections; as well the pigtail (hose) assemblies should comply with CGA standard B96, Compressed Gas
Cylinder Valve outlet and inlet connections.