I-768N
/ Series 768N FireLock NXT
™
Dry Valve
/ Installation, Maintenance, and Testing Manual
SECTION IV
• Required Main Drain Test
• Required Water Flow Alarm Test
• Required Water Level and Low-
Air Alarm Tests
• Required Partial Operational
Trip Test
• Required Full Operational Trip
Test
WARNING
• 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 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.
• Before servicing or testing the system, notify the authority having
jurisdiction.
Failure to follow these instructions could cause system failure, resulting in
death or serious personal injury and property damage.
NOTICE
• When the valve is reset after an operational test (or after any system
operation), the main drain valve and any low-point drain valves should be
partially opened and then closed to drain water that might be present in the
riser. Continue this procedure until all water is released.
• The optional Series 75D Water Column Kit can be installed to automate
this step.
I-768N_18
REV_C
