Johnson Controls A350P Series Catalog Page

Code No. LIT-1922370

Integration DIP Switch

(shown in proportional only position)

Setpoint

Dial

Throttling Range

Pote ntiomet er

Minimum

Output

Poten tiomet er

(0-10 VDC Output) V

(0-20 mA Output) I

(Sensor) (+) SN

VDC (+5 VDC)

24 V ( 24 VAC) ( +)

Module

Connector

LED Indicator

(Percent of Output)

Direct

Acting

Reverse

Acting

Operation Mode

Jumper Positions

THROT RANGE

MIN

OUTPU

Fast (C1) Medium (C2) Slow (C3) Off

Cover Screws (Quantity = 4)

C (Common) (-)

Mounting Slot

For #6 Screws

1.20 31

2.40 61

0.42 11

1.56 40

0.145

3.68

4.00 102

A350P

Conduit

Hole

0.875 22

0.85 22

5.00 127

2.40 61

2.94 75

0.5 13

DIN Rail

3.00 76

Issued February 1, 2009

A350P Series

Electronic Proportional Plus Integral Temperature Control

Description

The A350P Electronic Proportional Plus Integral Temperature Control Series has two proportional outputs of 0 to 10 VDC and 0 to 20 mA. This control is used in conjunction with the A99B Series (PTC silicon) Temperature Sensors. Two controls cover a temperature range from -30 to 250°F with an adjustable throttling range (proportional band) of 2 to 30F°.

Proportional plus integral (PI) control is an option to hold setpoint regardless of load shifts on the system. A temperature sensor (A99BC-25C) is included with each A350P control. The S350 Staging Module, D350 Display Module, and Y350R Power Module can be used with the A350P.

Features

• field-selectable proportional only or proportional plus integral control

• plug-together connectors and 35 mm DIN rail mounting eliminate wiring between models and reduce installation costs

• ten segment LED displays percent of output signal

• field-selectable reverse or direct-acting mode

• minimum output adjustable from 0 to 60%

• two models cover a wide setpoint range of

-30 to 250°F (-35 to 121°C)

a350p.eps

Interior of A350P

A350P

Selection Chart

Code Number

A350PS-1C A350PT-1C None A350PS-2C 90 to 250°F

Note: Specify code number from this selection chart, along with additional staging, display, and power modules, and temperature sensing enclosures, if required.

Output Signal

Proportional Volt age: 0 to 10 VDC and Proportional Current: 0 to 20 mA

Range Throttling

Range

-30 to 130°F

-35 to 55°C

30 to 121°C

2 to 30F° 1 to 17C°

Sensor (Included)

A99BC-25C

Applications

• modulating heating and cooling valves

• maintain mixed air duct temperature via damper modulation

Technical Specifications

A350P Electronic Temperature Control with Proportional Output

Supply Voltage

Proportional Output 0 to 10 VDC (550 ohm load minimum) and 0 to

Minimum Output Adjustable from 0 to 60% of the output span Output Indication A ten segment LED indicates percentage of

Control Action Direct or reverse action is jumper selectable Power Consumption 3.2 VA Integration Constant Three selectable rates fast, medium, slow and

Ambient Temperature

Humidity 0 to 95% RH non-condensing Case and Cover Material NEMA 1, high-impact thermoplastic

1. Only one voltage source may be used.

The performance specifications are nomina l and con form to accep table ind ustry stand ards. For applicati ons at con ditions be yond these specification s, consult the local Jo hnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2009 Johnson Controls, Inc.

Transformer 20 to 30 VAC, 50/60 Hz, Class 2

Y350R 120/240 VAC, 50/60 Hz

20 mA. (600 ohm load maximum).

output

an Off position

Operating -30 to 150°F (-34 to 66°C) Shipping -40 to 185°F (-40 to 85°C)

A350P Dimensions, in. (mm)

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