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The Alarm Valve Combo Unit shall be an Amico Alert-2 Series,
complete with a five year warranty.
Each AVCU shall consist of the following components: An 18 Gauge
steel valve box complete with a baked white enamel finish which
can house one to six shut-off ball valves with tube extensions,
gas specific sensor (DISS nut and nipple connection), extra port
for optional pressure gauge, and a hinged gas specific compact
alarm with illuminated LED digital display, with an error message
for an incorrect connection, an aluminum frame, and a pull-out
removable opaque window.
Afixed to the opposing sides of the box will be two adjustable steel
brackets for the purpose of mounting the box to the structural
support. The steel brackets shall accommodate various finished
wall thicknesses between 3/8” [9.5mm] and 1-3/16” [30mm] and
shall be field adjustable. The frame assembly shall be constructed of
anodized aluminum and shall be mounted to the back box assembly
by standard number 6-3/8” tapping screws as provided.
The digital alarm shall read from 0-250 psi [0-1,724kPa] for pressure
0-30”Hg [-100-0HgkPa] for vacuum. The digital read-out shall
constant indication of each service being measured. It will
indicate a green “NORMAL” and a red “HIGH” or “LOW” alarm
condition. If an alarm occurs, the “RED” alarm light shall $ ash and
the audible alarm (exceeds 90 decibels) will sound. Pushing the
“ALARM MUTE” button will cancel the audible alarm, but the unit
will remain in the alarm condition until the problem is recti! ed. A
repeat alarm function shall, when enabled on the compact alarm
module, be capable of turning on the buzzer again (after a preset
time) if the fault condition has not been rectified.
Each alarm module shall be individually microprocessor based
and be field adjustable. The default set point on this alarm shall
be +/- 20% variation from normal condition. In the calibration mode
the following parameters shall be adjustable: High/Low set-points,
Imperial/Metric units, Repeat alarm (adjustable from 1 to 60 minutes)
Enable/Disable, and psi, kPa or Bar readout (switch selected). Set
points shall be adjustable by two on-board push buttons.
Access to the shut-o" valves shall be by merely pulling the ring
assembly to remove the window from the frame. The window can
be reinstalled without the use of tools only after the valve handles
have been returned to the open position. The window shall be
marked to prohibit unauthorized persons from tampering with the
valves with the following silk-screen caution:
“Medical Gas Control Valves with Alarms”
“Close valves only in emergency”
The valves shall be a 3 piece ball-type design with a bronze
body and chrome plated brass ball for sizes ½” to 1-½”. Seats shall
be Te$ on (TFE) and seals Viton for ½” to 1-½”. A blow-out proof
stem shall be used and the valves shall have a maximum pressure
rating of 600 psi [4,137 kPa].
Valves shall be operated by a lever-type handle requiring only a
quarter turn from a fully open position to a fully closed position. All
valves shall be equipped with type “K” washed and degreased
copper pipe stub extensions to protrude 6” beyond the sides of
the box. Each valve will be identified for gas specification as
indicated on the hinged alarm label.
Input power to the Amico Alarm Valve Combo Unit is: 115VAC
to 220 VAC, 50 to 60 HZ.
Amico products comply with NFPA-99.