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Pressure Transducer Installation  
 
WARNING 
801913 pressure plates must be mounted in the 
wall between the controlled space (clean room) 
and referenced space (hallway), exactly as shown 
in Figure 5 and Figure 6. This installation is not 
representative of the through penetrating product 
tested under UL.  
  Install pressure transducer in desired location 
(typically above ceiling). The transducer must be 
mounted on a wall in the correct position per 
Figure 5 (screws not provided). Do not mount 
pressure transducer to duct or other vibrating 
surface. 
  Wire the pressure transducer per Figure 9 or 
Figure 10. Run sensor cable to the Clean Room 
Pressure Monitor 6”  4” electrical rough-in box. 
  Determine pressure sensor location (Figure 1, 
Figure 5 and Figure 6). Pressure sensor typically  
mounts in the reference space, and the plate 
mounts in the clean room.  
  Drill a 2¼-inch hole through each side of the 
wall to accept the sensor tube. 
  Run pneumatic tubing from transducer to 
sensor locations. For a positively pressurized 
space, the high port should be connected to 
the controlled space and the low port to the 
reference space. Similarly, for a negatively 
pressurized space, the low port should be 
connected to the controlled space and the high 
to the reference space. 
  Connect the pneumatic tubing to the nipple on 
the back side of the pressure plate. 
  Insert the pressure plate into the hole in the 
wall. Screw the pressure plate to the wall. The 
finished assembly should look like Figure 5. 
 
Figure 5: Cutaway View of Mounted Pressure Transducer Assembly 
 
Figure 6: Pressure Transducer Mounting