Data Sheet for Product
s Industry, Inc. 
Building Technologies Division 
Mounting Diagrams 
Details for Ordering 
Detectors 
Model 
Part 
Number 
Description 
XAS-1-US
S54331-Z2-
A1 
  Single-zone air-sampling unit 
UL Listed for use with Siemens 
intelligent, addressable spot 
detectors, as well as with a 
compatible Siemens mounting base 
Requires external 24VDC power
XAS-2-US
S54331-Z3-
A1 
  Dual-zone air-sampling unit 
  UL Listed for use with Siemens 
Model HFP-11 spot detector and 
Siemens mounting base 
Requires external 24VDC power
Note: Refer to Siemens Installation Manual, 315-094193, for further 
details on the Siemens Model ‘DB’-series of detector bases.
Details for Ordering — (continued) 
Flex Tubing 
Model 
Part 
Number 
Description 
02-LF42249  S54331-Z6-A1 
Flexible single-core tubing,  
50 ft. (15.24m) 
02-LF42250  S54331-Z7-A1 
Flexible single-core tubing,  
25 ft. (7.62m) 




