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Electronic Proportional Plus Integral Static Pressure Control .5/5"

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Manufacturer: Johnson Controls

Description: PropStatic#Ctrl .5/5"

Category: Electrical Controls

Sub Category: Pressure Controls

System 350TM P352P Electronic Proportional Plus Integral
Static Pressure Controls

The P352P is an electronic proportional only or

proportional plus integral static pressure control with

0 to 10 VDC and 0 to 20 mA anolog outputs. The P352P is

also equipped with three user-selectable integration

constants, as well as a wide adjustable throttling range.

Two models cover the ranges of

0.5 to 5 in. W.C. and 0.025 to 0.25 in. W.C.

Like all System 350 products, the P352P is housed

in a NEMA 1 high-impact thermoplastic enclosure. The

modular design provides easy, snap-together connections

for quick installation and future expandability.

Features and Benefits

♦ Modular Design Provides the flexibility to add a D352 Pressure Display Module and a
Y350R Power Module

♦ Plug-in Connectors and 35 mm DIN
Rail Mountability
Eliminates wiring between modules and reduces installation costs

♦ Two Models Cover a Wide Setpoint
Range of 0.5 to 5 in. W.C. or 0.025
to 0.25 in. W.C.

♦ Reduces inventory by encompassing pressure ranges required to
support most static pressure control applications
Minimum Output Adjustable from 0
to 60%

♦ Tailors the output to the requirements of the controlled equipment
Adjustable Throttling Range of 0.5
to 5 in. W.C. or
0.025 to 0.25 in. W.C.

♦ Enables user to match the amount of control (maximum to
minimum) required for a given application

♦ Field-selectable Reverse or Direct
Acting Mode
Works in a variety of pressure applications

♦ Three User-selectable Integration
Adjusts output to bring process to setpoint regardless of system load

♦ Interchangeable Pressure
Increases versatility and serviceability

Application Overview

The P352P Pressure Controls can be used as stand alone
devices or in conjunction with plug-in accessory modules to
control variable speed drives, motor actuators, or other
devices. The P352P Static Pressure Controls are not
typically used with staging modules. Consult Johnson
Controls Application Engineering for specific information

if a question regarding a specific application arises.

Typical applications include:

· duct static pressure control

· building pressurization

A typical System 350 static pressure control scheme
includes the following:

P352P Pressure Control

Y350R Power Module (or 24 VAC transformer)

D352CA Digital Pressure Display Module
(in. W.C.)

DPT-2640 Pressure Transmitter


IMPORTANT: All System 350 Controls are designed
for use only as operating controls.
Where an operating control failure
would result in personal injury and/or

loss of property, it is the responsibility of
the installer to add devices (safety, limit
controls) or systems (alarm, supervisory
systems) that protect against or warn of

control failure.

The P352P operates on 24 VAC/VDC and provides two
simultaneous analog outputs: 0 to 10 VDC and
0 to 20 mA. A ten segment front panel LED bar graph
indicates percentage of output.

Adjustable features include:

· setpoint

· minimum output

· throttling range (proportional band)

· integration constant

· reverse or direct acting mode of operation

Replaces Part Numbers: P352PQ-1, CARP352PQ-1

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