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DUAL Page 11 of 28
Integrated Fire Protection System
OWNER'S OPERATION & MAINTENANCE MANUAL
FM-0860-0-31F
4.8.3 Main drain test
A main drain test shall be conducted to determine whether
there has been a change in the condition of the water supply
piping and control valves (as per NFPA25).
1. Record the water supply pressure indicated by the
pressure gauge (B12).
2. FULLY OPEN the drain test valve (B6).
3. Record residual water supply pressure indicated by the
pressure gauge (B12).
4. SLOWLY CLOSE the drain test valve (B6).
5. Record the water supply pressure indicated by the
pressure gauge (B12).
6. Readings shall be compared with those made at the time
of the original acceptance tests or with those made at the
time of the last test to determine whether there has been
any deterioration of the water supply.
Note: A main drain test shall be conducted any time the
water supply control valve (D1) is closed and reopened
at the system.
4.8.4 Monthly inspection
1. Gauges on preaction system shall be inspected to
ensure that normal air and water pressures are being
maintained.
2. Verify that the control valves are in the following
condition:
(1) In the normal open or closed position.
(2) Properly supervised.
(3) Accessible.
(4) Free from external leaks.
3. The deluge valve (A1) and associated components shall
be externally inspected to verify the following:
(1) The valve is free from physical damage.
(2) All trim valves are in the appropriate open or closed
position.
(3) The valve seat is not leaking.
(4) Electrical components are in service.
4. Check alarm device (C1) switch by opening the alarm
test valve (B5).
5. Conduct low air pressure supervisory test (refer to
chapter 4.8.1).
6. Visually inspect all NOVEC 1230 system components
and cylinder pressure.
7. Refer any noted problems or deficiencies to authorized
service personnel for correction.
4.8.5 Semi-annual inspection
1. Check main water supply control valve (D1) switch upon
movement of the hand wheel.
2. Check alarm device (C1) switch by opening the alarm
test valve (B5).
3. Check the sprinklers piping for corrosion and damage.
4. Check all piping supports to insure they are tight and
properly secured.
5. Check the discharge nozzle orifice(s) to see if they
are clear with no obstructions.
6. Check to insure that the nozzles are positioned
correctly.
7. Check the quantity of liquid and pressure in the
cylinder (A). If a loss in net weight of more than 5%
or a loss in pressure of more than 10% (refer to
table 4.1), it shall be refilled or replaced.
8. Perform functional test of all components of the
system.
WARNING ! Prior to any functional tests, the
actuator (C) must be removed to prevent cylinder (A)
discharge.
4.8.6 Annual inspection
1. Perform semi-annual inspection.
2. Check all detectors at the remote releasing control
panel.
3. Check all releasing conditions.
4. Check all audible & visual devices at the remote
releasing control panel.
5. Check all HVAC shut down, etc. from the remote
releasing control panel.
6. Check if extinguishment electric actuator (C)
operates after pre-discharge delay
.
7. Simulate a low pressure of cylinder (A) by shorting
low cylinder pressure switch (D) terminals.
8. Perform sequence of operation (refer to chapter 4.4).
9. Perform manual emergency release test of the
preaction system.
10. Perform full trip test.
11. Perform drain test.
4.8.7 Long term inspection
1. Alarm valves and their associated strainers, filters,
and restriction orifices shall be inspected internally
every 5 years unless tests indicate a greater
frequency is necessary.
2. Riser check (D2) shall be inspected internally every
5 years unless tests indicate a greater frequency is
necessary.
3. Test on gauge (gauge precision required: less than
3% of the full scale).
4.9 MAINTENANCE
The system shall be maintained in full operation condition
at all times.
All troubles or impairments shall be corrected promptly
consistent with the hazard being protected.
Any penetration made through the enclosure protected by
the clean agent shall be sealed immediately. The method
of sealing shall restore the original fire resistance rating of
the enclosure.
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