I-769N.Preaction/AC-ELEC / Victaulic
®
Series 769N FireLock NXT
™
/ Installation, Maintenance, and Testing Manual
SECTION VI
• Removing and Replacing the
Clapper Seal
• Removing and Replacing the
Clapper Assembly
• Installing the Cover Plate
Gasket and Cover Plate
• Removing and Replacing the
Diaphragm
• Cleaning the Cartridge in the
Priming Manifold Assembly
• Replacing the Filter in Series
776 Low-Pressure Actuators
WARNING
• Before servicing or testing the system, notify the authority having
jurisdiction.
• Depressurize and drain the piping system before attempting to remove the
cover plate from the valve.
• The building owner or their representative is responsible for maintaining the
fire protection system in proper operating condition.
• To ensure proper system operation, valves must be inspected in accordance
with current NFPA-25 or LPCB/EN requirements or in accordance with the
requirements of the local authority having jurisdiction (whichever is more
stringent). Always refer to the instructions in this manual for additional
inspection and testing requirements.
• The frequency of inspections must be increased in the presence of
contaminated water supplies, corrosive/scaling water supplies, and corrosive
atmospheres.
• Any activities that require taking the valve out of service may eliminate
the fire protection provided. A fire patrol is strongly recommended for the
affected areas.
Failure to follow these instructions could cause system failure, resulting in
death or serious personal injury and property damage.
I-769N.Preaction/AC-ELEC_30 REV_A
To Next Page
Loading...
Need help?
General
