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Pressure Sensor Installation
WARNING
800243/800326 pressure sensor must be
mounted through-the-wall between the
controlled space (isolation room) and referenced
space (hallway), exactly as shown in Figure 3
and Figure 4.
Determine pressure sensor location
(Figure 1, Figure 3, and Figure 4). Pressure
sensor typically mounts in the reference
space, and the dummy housing mounts in
the isolation room.
Pressure sensor is not symmetrical. If
sensor is to be centered over hallway
door, measure one inch to the left of
center for 2¼” hole. Dummy sensor will
be 2” off center on other side of wall.
The pressure sensor must be orientated on
the wall as shown in Figure 2. Looking at
the mounted sensor, sensor hole is on the
left (2¼”) and wire hole is on the right.
Drill a 2¼” hole through each side of the
wall to accept the sensor tube.
Drill a
7
8” hole on the side of the wall that
the pressure sensor will be mounted. This
hole is for the six-conductor sensor cable.
Refer to Figure 2 for a hole-mounting
pattern.
Slide sensor cover to right and remove
screw that holds the sensor base to the
pressure sensor (Figure 2).Mod Remove
pressure sensor and store in a safe place.
From the side of the wall the sensor will be
mounted, slide the sensor tube through-the-
wall. Mark the tube where it is flush with wall.
Remove sensor tube and cut tube
1
8 inch
shorter than flush marking.
If 12” sensor tube needs to be extended,
use same size or larger diameter tube.
Drill out ½” sensor hole in dummy case to
match ID of tube extension.
Figure 2: Pressure Sensor Orientation and
Mounting Template
From the side of the wall the sensor will be
mounted, slide the sensor tube through-the-
wall. Slide the dummy base over the end of
the tube. Screw the pressure sensor base
and dummy base to the wall (Figure 3 and
Figure 4).
Wire the pressure sensor per Figure 5. Run
sensor cable to the room pressure monitor
6” 4” electrical rough-in box.
Insert fire protection sealant (provided) into
7
8” wire hole to seal.
Install and screw the pressure sensor and
dummy cover onto the bases. Slide covers to
the left to hide the sensor. Finished
installation should look as shown in
Figure 4.
WARNING
DO NOT touch the sensor element in the
pressure sensor. DO NOT run wires through
the air passage. Doing so will damage the
sensing element.
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