Pneumatic Airstream Insertion Thermostat Direct Acting

Overview

One-pipe, single setpoint, pneumatic thermostat used to provide proportional control of pneumatic valves and damper actuators in heating and air conditioning systems. Commonly used as discharge controllers for unit ventilators.

Features

• Rod and tube insertion sensing element.
• Wide throttling range.
• Gage tee and tank valve facilitate checking line pressures.

Product Specifications

Application

Low Limit controller

Airflow Usage

0.011 scfm (5.2 mL/s)

Dimensions (in.)

5 7/16 in. high x 1 1/16 in. wide x 2 1/4 in. deep

Dimensions (mm)

138 mm high x 27 mm wide x 57 mm deep

Maximum Safe Operating Pressure (psi)

25 psi

Maximum Safe Operating Pressure (kPa)

170 kPa

Temperature Range (F)

135 F maximum

Temperature Range (C)

57 C maximum

Includes

Fittings for mounting on sheet metal duct. Order restrictor separately.

Mounting

Insertion with locknut on boss of insertion shank

Approvals, Underwriters Laboratories Inc.

Approvals, CSA

Setpoint Temperature Range (C)

4 C to 60 C

Setpoint Temperature Range (F)

40 F to 140 F

Shipping and Storage Temperature Range (F)

150 F maximum

Shipping and Storage Temperature Range (C)

66 C maximum

Approvals, Factory Mutual

Sensor Element

Invar rod and seamless brass tube, 18 3/4 in. (476 mm) long and 11/32 in. (9 mm) diameter; Remote Bulb

Throttling Range (F)

5 F to 35 F

Throttling Range (C)

3 C to 19 C

Connection Size (in.)

Differential Pressure Range (psi)

Differential Pressure Range (kPa)

Approvals, NEMA Standard

Action

Direct Acting

Air connections

Barb fittings 1/4 in. (6 mm) poly tubing

Setpoint

Single

Number of Pipes

1

Changeover Pressure (psi)

Changeover Pressure (kPa)

Mainline Pressure Range (psi)

Capacity

Low

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)

This item has no supplemental files.