Johnson Controls W351P Series Catalog Page

Code No. LIT-1922405
Issued February 1, 2009

W351P Series

Electronic Proportional Plus Integral Humidity Control

Description

The W351P Electronic Humidity Control series
has proportional outputs of 0 to 10 VDC and
0 to 20 mA. Proportional plus integral (PI)
control is an option to hold setpoint regardless
of load shifts on a system. The control covers
a range of 10 to 90% RH and has adjustments
for setpoint, integration constant, throttling
.

Interior of W351P

Selection Chart

Code
Number

W351PP-1C Proportional
W351PN-1C HE-67S3-0N0BT

W351PN-2C HE-67S3-0N00P

Note: Order the corresponding humidity transmitter separately. Staging,
power, and display modules can be ordered optionally, if required.

Output Humidity

Range

Voltage:
0 to 10 VDC and
Proportional
Current:
0 to 20 mA

10 to 90% RH2 to 20% RH none

range, minimum output, and mode
(humidification or dehumidification). This
control is used in conjunction with the
HE-67S3-0N0BT or HE-67S3-0N00P series of
humidity transmitters. The S351 Stage
Module, Y350R Power Module, and D351
Display Module can be used with the W351P.

Throttling
Range

Humidity
Transmitter

(included)

(included)

Features

• field selectable proportional only or
proportional plus integral control

• surface or DIN rail mounting

• ten segment LED displays percent of
output signal

• field selectable humidification or
dehumidification mode

• minimum output adjustment

9300062fig2.eps

• 5-pin connectors eliminate wiring between
modules

Applications

Use for modulating steam valves for
humidification.

W351P

Technical Specifications

W351P Electronic Proportional Plus

Integral Static Pressure Control

Supply
Voltage

Sensor Input Range 0 to 10 VDC, corresponding to 0 to 100% RH
Proportional Output 0 to 10 VDC (550 ohm load minimum) and

Minimum Output Adjustable to 0 to 60% of full output span
Output Indication A ten segment LED bar graph indicates

Control Action Direct or reverse action is jumper selectable
Power Consumption 3.2 VA maximum
Integration Constant Three selectable rates Fast, Medium, Slow,

Ambient
Temperature

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

1. Only one input voltage source may be used.

The performance specifications are nomina l and conf orm to accep table industr y standar ds. For ap plications a t condition s beyond th ese specification s, consult the local Johnson Controls o ffice.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2008 Johnson Controls, Inc.

1

Transformer

Operating -30 to 150°F (-34 to 66°C)

Shipping -40 to 185°F (-40 to 85°C)

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

Y350R 120/240 VAC, 50/60 Hz

0 to 20 mA (600 ohm load maximum).

percentage of output

and Off position

W351P Dimensions, in. (mm)

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