Amico Automatic Cryogenic Liquid Solenoid Manifold - Manual (Page 5)

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Introduction
The Amico Automatic Cryogenic Liquid Solenoid Manifold is designed to provide a reliable, uninterrupted supply of
gas to a hospital or other medical facility. The manifold accommodates multiple cryogenic containers divided into
two equal banks. One bank is designated as a “Primary” source of gas while the other bank stands in reserve as a
“Secondary” source.
A display of LED’s on the front of the manifold indicates the status of the gas supply. Each bank has a green (IN
USE), yellow (READY) and red (EMPTY) LED. When the primary bank of cylinders are depleted, the manifold will
automatically switch to the secondary bank of cylinders without interruption of gas flow to the facility. The red
LED will illuminate when a bank is depleted and two normally closed dry contacts for the reserve In-Use alarm
will open. One or both sets of contacts may be wired to an external alarm, remote buzzer and/or a building
management system.
When the empty Liquid tanks / Dewar’s are replaced with full ones, the manifold will need to be reset by pressing
the “PUSH TO RESET” button on the front of the cabinet. At this time the status is changed from EMPTY to READY
mode as indicated on the LED display that the bank is now the secondary bank.
Note: the “PUSH TO RESET” button should not be pressed until the empty Liquid tank / Dewar has been replaced
with a full one.
The power supply is connected to the top right hand corner of the manifold. Connections from the manifold to the
Amico master alarm must be made from terminals marked C/Signal to the appropriate terminals (Reserve In-Use) on
the master alarm or a remote buzzer.
The Manifold is designed in accordance with the National Fire Protection Association (NFPA 99)
FEATURES INCLUDE:
• Input power to the manifold is 110-240 VAC, 50-60Hz
• Incorporates six LED’s display - readable in poor lighting conditions
• Dual line pressure regulators
• 3/4” Isolation valve for supply line
• Wall mounting bracket attached to manifold for easy installation
• Manifold complies with NFPA 99
• Economizer circuit