Pneumatic Diffuser Thermostat Dir.Acting

Overview

One-pipe, single temperature, low-capacity pneumatic thermostat used to provide proportional control of pneumatic valves and mixing boxes in heating and air conditioning systems. It mounts in a slot or light troffer diffuser or a return air grill.

Features

• Two-way setpoint indicator for vertical or horizontal mounting.
• Detents in 1 F (0.5 C) increments for blind operation.

Product Specifications

Application

Single temperature, low capacity, pneumatic thermostat

Airflow Usage

0.011 scfm (5.2 mL/s)

Dimensions (in.)

1 in. high x 2 1/2 in. wide x 1 1/8 in. deep

Dimensions (mm)

25 mm high x 63 mm wide x 27 mm deep

Maximum Safe Operating Pressure (psi)

30 psi

Maximum Safe Operating Pressure (kPa)

207 kPa

Temperature Range (F)

110 F maximum

Temperature Range (C)

43 C maximum

Comments

Requires external 0.005 in. restrictor

Mounting

Wall mount

Approvals, Underwriters Laboratories Inc.

Approvals, CSA

Setpoint Temperature Range (F)

67 F to 83 F

Shipping and Storage Temperature Range (F)

150 F maximum

Shipping and Storage Temperature Range (C)

66 C maximum

Approvals, Factory Mutual

Sensor Element

Bimetal

Throttling Range (F)

2 F to 10 F

Throttling Range (C)

1 C to 5 C

Connection Size (in.)

Differential Pressure Range (psi)

Differential Pressure Range (kPa)

Approvals, NEMA Standard

Action

Direct Acting

Setpoint

Single

Number of Pipes

1

Changeover Pressure (psi)

Changeover Pressure (kPa)

Mainline Pressure Range (psi)

Capacity

Control Range (fpm)

Control Range (m/s)

Number of Sensor Inputs

Remote Control Point Adjustment

Approximate Throttling Range, Midscale (psi)

Approximate Throttling Range, Midscale (kPa)

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