April 2011
Section 5 Testing & Commissioning
Page 5 – 1
Amerex Restaurant Fire Suppression System (EX 4658)
TESTING & COMMISSIONING
Testing and commissioning shall be performed by a trained and certified Amerex restaurant distributor in
accordance with NFPA 96, NFPA 17A and local code requirements.
Once the Amerex Restaurant Fire Suppression System has been completely installed, two sets of tests must
be conducted prior to placing the system in service. The detection network, using any fusible link style or the
pneumatic tubing, must be tested for functionality along with the manual pull station(s), gas valve(s) and other
interlocks. Once this is accomplished and confirmed the action network must be tested using a nitrogen
actuation cartridge. Recharging of the nitrogen cartridge can be accomplished by following the instructions on
Page 7-6 and 7-7.
TESTING THE DETECTION NETWORK – MRM or MRM II
The
terminal detector
must have a test link (P/N 12891) installed in place of the fusible link. With the
nitrogen actuation cartridge removed from the release module; the release mechanism cocked; the tension
bar in the “up” (tension) position and the set-up/lock-out tool removed; cut the test link with a pair of dikes or
similar device.
The MRM must actuate at this time.
If the MRM did actuate
, follow the reset instructions, place the proper fusible link on the terminal detector
and continue with the system test.
If the MRM did not actuate
, check to see if:
•
the detectors are installed properly,
•
that the cable is not binding at any point in the conduit or corner pulley(s),
•
that the cable is connected to the link plate properly,
•
that the tension bar is in the “up” position and that the set-up/lock-out tool is not in place
•
that the conduit is rigidly fastened in place
•
that the proper tension exists on the link line
Once these items have been investigated and resolved,
RETEST
.
TESTING THE DETECTION NETWORK - PRM
When first placing the system into service, following system actuation, or at the six month servicing interval,
the detection network shall be tested prior to conducting an actuation network test:
1.
Insure removal of the Nitrogen Actuation Cylinder.
2.
Slowly release the detection pressure until the panel actuates by performing either of the
following:
a
Depress the Schrader valve on the detection accumulator cylinder. Replace Schrader
cap following actuation and re-pressurization.
b
Slowly loosen the knurled nut on the end and check for leaks of line fitting. Re-tighten
the nut following actuation and thoroughly leak check the entire PRM assembly and
tubing following re-pressurization.
If the PRM did actuate
, follow reset instructions and continue with the system test.
If the PRM did not actuate
, check to see if:
•
that the PRM was properly cocked
•
that the "End of Line Fitting" did properly vent the pressure from the accumulator
•
that the accumulator pressure reading dropped to zero
•
that the set-up/lock-out tool is not in place
•
that the slide plate and puncture pin are free to function
•
that the trip plunger is free to move without resistance
Once these items have been investigated and resolved,
RETEST
.
