Amerex 20150, Руководство по проектированию, установке, техническому обслуживанию и перезарядке

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13. Check the valve outlet, top chamber and collar for leaks using a leak detection fluid (soapy water).
Bubbles may take sever minutes to appear. Blow dry and clean all surfaces and orifices following leak
detection.
14. If the agent cylinder assembly is not going to be placed into the bracket immediately or is going to be
transported, make sure that the anti-recoil and safety plates are in place and required labeling and
securement is used.
15. Follow all reset procedures and conduct a full functional test of the system.
16. If the discharge was caused by a fire incident, replace ALL of the fusible links in the detection network.
17. Remove all nozzles from the distribution piping network and clean thoroughly with warm soapy water,
making sure that each nozzle is returned to its proper location. Replace any nozzles that appear to be
damaged.
18. Flush the distribution piping network with water and blow clean using a regulated source of nitrogen
connected to the distributor network test adapter. Set regulator for 150 PSI (10.342 bar). Secure the
nitrogen cylinder when performing this test to prevent damage occurring to the cylinder, valve or
regulator.
19. Install a full charged nitrogen actuation cylinder . See below .
20. After all functional testing, reset procedures, nozzle and blow off caps are replaced (if high temperature
caps are used – replace nozzle tip o-rings if necessary), connect the actuation piping to the port(s) on
top of the valve(s), install all new tamper seals and record all procedures in the permanent job file.
NITROGEN CYLINDER RECHARGE:
If you prefer to shop or field recharge Amerex nitrogen cylinders, either one of the two cylinder
restraining devices pictured on Page 7 – 7 are recommended.
WARNING: NITROGEN ACTUATION CYLINDERS OPERATE AT EXTREMELY HIGH (1800 PSI)
PRESSURES. HANDLE WITH CAUTION. PERFORM ALL RECHARGING WITH CYLINDERS
RESTRAINED BY AN AMEREX APPROVED SUITABLE SAFETY SECURING DEVICE
.
1. Remove nitrogen cylinder from MRM or PRM. Install shipping cap on N
2
cylinder.
CAUTION: UNSCREW THE NITROGEN CYLINDER SLOWLY TO ALLOW ANY RESIDUAL
PRESSURE TO ESCAPE.
2. Clean the cylinder exterior to remove dire, grease and foreign material. Check to make sure that the
nameplate is in place and fully legible. Inspect cylinder for corrosion, abrasion or dents. If integrity of
the cylinder has been compromised, make sure all pressure has been relieved and destroy.
NOTE: When cleaning N
2
cylinders, avoid use of solvents. Solvents could seriously damage the
gauge face, the gauge guard or the nameplate.
3. Remove old rupture disc assembly:
a. Remove shipping cap and install cylinder in a P/N 10270 or 13430 N
2
Cylinder Recharge
Adapter.
b. Hold cylinder in place using a 1-1/8 inch wrench on the hex portion of the N
2
cylinder fitting.
c. Loosen the rupture disc fitting by turning the Recharge Adapter Wrench ¼ turn.
d. If cylinder contains an unruptured disc, allow residual pressure to escape.
e. Unscrew cylinder from recharge adapter.
f. Unscrew old rupture disc assembly and DISCARD.
WARNING: NEVER REUSE A RUPTURE DISC, EVEN IF IT IS UNDAMAGED – DESTROY & DISCARD
December 2008 Section 7 Reset and Recharge Page 7 – 6
Amerex Restaurant Fire Suppression System (EX 4658)