TSI Instruments 800243, 800326 Installation Instructions And Owner's Manual

MODEL 800243 or 800326

WARNING

THE MODEL 800243/800326 ROOM PRESSURE SENSORS MUST BE WIRED TO 24 VAC ONLY.

WIRING THE UNIT TO 110 VAC WILL CAUSE SERIOUS DAMAGE TO THE UNIT AND VOID THE WARRANTY.

The pressure sensor must be mounted through-the-wall between the controlled space and referenced space.

This product is classified by UL as to fire resistive properties only. See UL File R15545.

Figure 1: Typical Installation

Component List

Part Number

Qty

Description

800243 or
800326

1

Pressure sensor
with cable

THROUGH-THE-WALL ROOM PRESSURE SENSOR

INSTALLATION INSTRUCTIONS

These installation instructions guide the installer through the installation of the TSI Model 800243/800326
Through-the-Wall Room Pressure Sensor. Unless specified otherwise, figures and instructions apply to all
versions. Please read these instructions thoroughly before beginning installation.

_____________________
TSI and TSI logo are registered trademarks of TSI Incorporated.

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.

NOTE

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-the­wall. Mark the tube where it is flush with wall.
Remove sensor tube and cut tube 18 inch
shorter than flush marking.

NOTE

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-the­wall. 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.

p. 2 of 4

WARNING

DO NOT connect more than 24 VAC to any terminal.

CEILING

DUMMY

COVER

CONTROLLED SPACE

REFERENCE SPACE

(TYPICALLY A HALLWAY)

BLACK FIRE SEALANT RING
MUST INSERT INTO

2 ¼” HOLE

PRESSURE
SENSOR

½ THE DISTANCE

BETWEEN CEILING

& DOOR JAMB

WALL

Figure 3: Cutaway View of Mounted Pressure Sensor

Figure 4: Pressure Sensor Mounting

p. 3 of 4

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Wiring Recommendations

Through the Wall Sensor Each

24 VAC, 50/60 Hz, 3VA

WARNING

Sensor must be wired exactly as wire diagram shows. Making modifications to the wiring may severely
damage the unit. See monitor or controller installation instructions for complete wiring diagrams.

6

A

-

B

8

7

3

H

+

N54

TSI TTW SENSOR

24VAC POWER IN

0-10VDC SIGNAL OUT

SENSOR COMMUNICATION

 TSI recommends stranded wire.
 Comply with local and national electrical codes.
 Follow good wiring practices:

o DO NOT run control wiring in the same conduit or wireway as power wiring.
o Control cables should cross power cables at a 90-degree angle.
o Use a consistent color code to maintain polarity.
o Control signals require “home run” wiring / star configuration. DO NOT daisy-chain control wires or

use a series configuration.

Refer to the wiring diagram, Figure 5 for proper wiring installation.

Power Requirements

Figure 5: Through-The-Wall Sensor Wiring

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P/N 6011944 Rev. A ©2018 TSI Incorporated Printed in U.S.A.