Kidde Fire Systems Surge Protector P/N 81-CO2MAN-001 Manuale Utente

P/N 81-CO2MAN-001

6-11

September 2013

6-6.1.1

CARBON DIOXIDE CYLINDERS

Kidde CO2 cylinders shall comply with CFR49/TDG requirements while in transit and shall 

comply with NPFA 12 requirements while installed.

All Kidde CO2 cylinders shall be qualified for use over public ways in accordance with 

CFR49/TDG as applicable. Per CFR49/TDG, qualified cylinders shall not have a hydrostatic test 

date stamp that is more than five (5) years old. Cylinders with a date stamp more than 5 years 

old shall be re-qualified in accordance with CFR49/TDG prior to shipment.

While installed, NPFA 12 allows CO2 cylinders to remain in service for a maximum of twelve 

(12) years from the last stamped hydrostatic test date. At the end of the 12 year period, 

cylinders shall be removed from service, vented (emptied) and re-qualified in accordance with 

CFR49/TDG before returning to service. The applicable sections of this manual shall be followed 

when removing, venting or reconnecting cylinders to service.

6-6.1.2

NITROGEN CYLINDERS

Kidde N2 cylinders shall comply with CFR49/TDG requirements while in transit and shall comply 

with NPFA 12 requirements while installed.

All Kidde N2 cylinders shall be qualified for use over public ways in accordance with CFR49/TDG 

as applicable. Per CFR49/TDG, qualified cylinders shall not have a hydrostatic test date stamp 

that is more than allowed period of time. CFR49/TDG define the allowed period of time as ten 

(10) years for 3AA cylinders with a water capacity of 125-lbm (3,467 cu. in.) or less. 

CFR49/TDG define the allowed period of time as five (5) years for 3AA cylinders with a water 

capacity greater than 125-lbm (3,467 cu. in.). Cylinders with a date stamp older than the 

allowed period of time shall be re-qualified in accordance with CFR49/TDG prior to shipment.

While installed, NPFA 12 allows N2 cylinders to remain in service indefinitely. 

Any cylinder (CO2/N2/Other) shall be re-qualified immediately if the cylinder shows evidence 

of distortion, damage, cracks, corrosion or mechanical damage. Any cylinder failing 

requalification shall be destroyed. The applicable sections of this manual shall be followed when 

removing, venting or reconnecting cylinders to service.

Flexible hoses must be hydrostatic pressure tested every five years in accordance with the 

requirements in NFPA 12.

Remove dirt from metallic parts using a lint-free cloth moistened with dry cleaning solvent. Dry 

parts with clean, dry, lint-free cloth or air blow dry. Wipe non-metallic parts with clean, dry 

lint-free cloth. Clean and paint steel parts as required.

Service nozzles after use as follows:
1. Clean outside of nozzles with rag or soft brush.
2. Examine discharge orifices for damage or blockage. If nozzles appear to be blocked, 

unscrew nozzles and clean by immersing in dry cleaning solvent and drying thoroughly with 

lint-free cloth. Replace damaged nozzles. Nozzles must be replaced with same part 

number. Clean and paint steel nozzle bowls as required.

3. Examine nozzle frangible discs (if installed). Replace damaged or ruptured frangible discs.