Low Air Supervisory

[ContractorDave]

On a related note to an earlier posting, I do not see where it is mandatory to have low air supervision on a dry system. If it is a code requirement, then power to the air supply is in effect self monitoring. If it is not and a system exists without low air trouble, there exists ample room for error if a compressor is merely plugged into a receptacle.
Thoughts?

Regards
Dave

 

[SprinklerDesigner2]

Low air supervision is not a requirement but an excellent, and fairly cheap, addition.

 

[cdafd]

first you have to have a fire alarm panel installed to monitor the system, not always the case.

 

[gouveia]

Technically required for refrigerated spaces only per NFPA 13 (2002 edition). However, we require them all on systems we specify/design:

7.8* Refrigerated Spaces.
7.8.2.2 Low Air Pressure Alarm.
7.8.2.2.1 Unless the requirements of 7.8.2.2.2 are met, a low air pressure alarm to a constantly attended location shall be installed.
7.8.2.2.2 Systems equipped with local low pressure alarms and an automatic air maintenance device shall not be required to alarm to a constantly attended location.