Trane TRACER SUMMIT BAS-APG001-EN Manuel D’Utilisation

Response times are a pre-installation consideration. For a discussion of 
response time requirements for smoke control systems, refer to NFPA 
92A (NFPA 2000, Recommended Practice for Smoke Control Systems), 
section 3.4.3.3 and NFPA 92B (NFPA 2000, Guide for Smoke Management 
Systems in Malls, Atria, and Large Areas), section 4.4.4. The activation 
sequence should be accomplished so as to avoid damage to the equipment. 
For example, the dampers should be opened before starting the fans. 
Table 7 shows the required response times, as published in the referenced 
NFPA documentation.

Table 8 on page 30 given cabling distance requirements for data of two 
different types: 

Hardware based, such as from analog or binary inputs and outputs

Communication based, such as from the Lontalk communication link 
or I/O bus (EX2)

The table also presents different cabling distance requirements 
depending on whether the data path is monitored or unmonitored. 

There are no stated distance limitations for monitored information paths. 
The maximum distance allowed is the same as the manufacturer’s stated 
maximum distance for that particular data type. A data path is 
considered monitored if some notification for opens, ground-shorts, and 
conductor shorts is available and used (NFPA 72A [2002] section 4.4.7.1).

Damper operation to desired state

(open or closed)

75 seconds

Fan operation to desired state

(on or off)

60 seconds

Note:
Some building codes such as the Uniform Building Code have 
much more stringent response times. As with all of the 
considerations discussed in this chapter, the local authority 
having jurisdiction (AHJ) has the final word.