Maintenance Manual
21
PEFS F3 Maintenance Manual, Version 1.2, Feb 2018
© Copyright 2017 Chubb Fire & Security Pty Ltd
Distribution System
– Clear Passage Test (Item 13)
1. Disconnect discharge hose from cylinder valve.
2. Remove Nozzle Foil Caps from nozzles.
3. Flush discharge network with water and/or compressed air/nitrogen
4. Check distribution network is clear of any blockages
5. Clean Nozzles and Shrouds.
6. Re-fit Nozzle Foil Caps. Replace foil caps if required.
a. Foil Caps should only be fitted and removed using the Nozzle Cap Tool
b. Always screw on the Foil Caps by hand for the first couple of turns before using the Nozzle Cap Tool to
tighten the cap to prevent cross threading.
7. Check nozzles are pointing at pre-determined aiming points. Refer to system design data (baseline data) as of
last commissioning.
8. Check distribution system is intact and not damaged:
a. Hoses are not worn, split, cut or kinked.
b. Hoses have protective sleeves fitted along locations where rubbing can occur.
c. Tubing is not dented, kinked or otherwise damaged
d. Fittings do not show signs of excessive corrosion
e. Fittings are secure.
f.
Clamps are adequately secured to the equipment and firmly hold the discharge hoses and or tubing in
place.
g. Nozzle brackets (where fitted) are adequately secured to the equipment and firmly holds the nozzle kit
fittings.