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Standard Range ZPM - Zone Pressure Sensor

in a BAPI-Box Enclosure

Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI  54631 USA

Tel:+1-608-735-4800 • Fax+1-608-735-4804 • E-mail:[email protected] • Web:www.bapihvac.com

1 of 5

 Installation & Operations

47138_ins_ZPM_SR_BB

rev. 04/13/22

3. Choose DIRECTION

Bidirectional is a plus/minus range so 

choosing 5” range is -5” to +5” Bidirectional 

and 0” to +5” Unidirectional

Identification and Overview

BAPI’s ZPM is designed for quick 

and easy field installation. The 

outputs, ranges, units, directionality, 

are all easily set in the field without 

powering the unit.
The optional LCD display helps with 

troubleshooting because it displays 

the actual pressure regardless 

of the selected pressure range. 

Three LEDs on the face of the unit 

indicate when the pressure is “Out 

of Range Low”, “In Range” or “Out 

of Range High” for the selected 

range. The appropriate LED will 

flash when out of range.

Switch Setup - Outputs, Ranges, Units/Response

Fig 2:

 Setup 

Switches for 

Standard 

Range Units

Fig. 1:

 ZPM 

BAPI-Box Unit and 

Associated Parts

1. Select OUTPUT

2. Select RANGE

If unit is ordered with a Custom Range, 

then the switch must be set to R6.

4. Choose UNITS - Inches WC or PASCALS

5. Choose RESPONSE TIME

Fast Response = 1/2 second

Slow Response = 4 seconds

6. Mount, Terminate and Auto-Zero the unit as 

described in later sections. 

NOTE! 

Always follow the Auto-Zero procedure after changing settings.

Bulkhead fitting 

for static probe

Static probe 

and tube 

with surge 

damper 

(for units 

ordered with 

the included 

static probe)

Cover latch 

screws

Conduit 

foam plug

Static probe 

screws

Mounting 

screws

Deadhead 

tubing

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