1-2.2.2 Decomposition; 1-2.2.3 Cleanliness; 1-2.2.4 Other Safety Considerations - Kidde Fire Systems ECS Manual

General Information
1-2.2.2 Decomposition
When HFC-227ea is exposed to temperatures over approximately 1300°F (700°C), products of
decomposition (halogen acids) are formed. If the HFC-227ea is discharged in 10 seconds or
less, flames are rapidly extinguished and the amount of by-products produced is minimal.
1-2.2.3 Cleanliness
HFC-227ea is clean and leaves no residue, thereby eliminating costly after-fire clean-up and
keeping expensive downtime to a minimum. Most materials such as steel, stainless steel,
aluminum, brass and other metals as well as plastics, rubber and electronic components are
unaffected by exposure to HFC-227ea.
1-2.2.4 Other Safety Considerations
The high pressure discharge of HFC-227ea from a system nozzle can create noise loud enough
to be startling. The high velocity discharge can be significant enough to dislodge objects
located directly in the discharge path. Enough turbulence may be created in the enclosure to
move unsecured paper and other light objects. Direct contact with the vaporizing agent
discharged from a nozzle will have a chilling effect on objects, and can cause frostbite burns
to the skin. The liquid phase vaporizes rapidly when mixed with air and limits the chilling
hazard to the immediate vicinity of a nozzle.
HFC-227ea itself is colorless. Discharge of HFC-227ea into a humid atmosphere may cause fog
and reduce visibility for a short time.
October 2014 1-4 06-236115-001