Installation Guide and Operating Manual // Model FS20X™ Series 
 
  
 
Honeywell      9 
4. Loosen the set screw on the enclosure lid 
(see Figure 2-6).
 
 
Figure 2-6 
5.  Turn counterclockwise (CCW) to unscrew 
the enclosure lid (see Figure 2-7). 
 
Figure 2-7 
 
6.  Loosen the three captive screws on the 
Detector Module “puck” (see Figure 2-8). 
 
 
Figure 2-8 
CAUTION:  Disconnect power before 
unscrewing the Housing Lid.