Tyco Fire Suppression & Building Products ANSUL AQUASONIC, Design, Installation, Recharge, And Maintenance Manual

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SECTION VII
3-1-2010 Page 7-1
Inspection is a “quick check” that a system is operable. It is
intended to give reasonable assurance that the system is
fully charged and will operate. This is done by visually
ascertaining that the system has not been tampered with
and there is no obvious physical damage or condition to
prevent operation. The value of an inspection lies in the
frequency and thoroughness with which it is conducted.
Systems should be inspected at regular monthly intervals or
as required by NFPA 750, “Water Mist Fire Protection
Systems,” Chapter 13 “System Maintenance” or at more
frequent intervals when circumstances require.
The following visual checks should be performed during an
AQUASONIC System inspection:
• Visually inspect the hazard area to verify that it has not
changed. Look for different fuels, new equipment, and
blocked open doors or dampers.
• Check detectors to make certain they are in place, not
damaged or coated with dirt, grease, paint, or any conta-
minating substance.
• Check all manual pull stations and remote actuators to
ensure they have not been tampered with and are not
blocked from use.
• Check all alarm devices for damage, dirt, corrosion, etc.
• Check that the piping is secure and atomizers are in
place. Make certain the atomizers are not covered with
dirt, grease, or paint. Ensure dust caps are properly in
place on the tip of the atomizers.
• Make certain that there are no additional obstructions
interfering with the discharge path beyond what was
allowed in the original design.
• Visually inspect all components for signs of damage,
such as disconnected or loose parts, corrosion, twisted or
dented components, etc.
• Visually verify that the control panel and/or releasing
device is armed and operational with no faults indicated.
• Read each nitrogen cylinder gauge and verify that it is
within the normal operating range.
• Make certain the red nitrogen line shut-off valve and black
water line shut-off valve on the supply are in the open
position and sealed with visual inspection seals. If using a
connected reserve, the red nitrogen line shut-off valve
and black water line shut-off valve on the reserve supply
must be in the closed position.
• If applicable, visually inspect the pneumatically operated
selector valve(s) to ensure that the visual indicator is in
the down position.
• Perform any other checks that may be required by the
authority having jurisdiction.
• Record that the system has been inspected and inform
the proper personnel.
Inspection