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Table Of Contents

Product Bulletin M91xx

Issue Date 08/31/01

Code No. LIT-2681058 www.johnsoncontrols.com

M9108, M9116, M9124, and M9132 Series Electric

Non-spring Return Actuators

The M91xx Series includes M9108, M9116, M9124,

and M9132 models. All of these direct-mount electric

actuators operate on 24 VAC or VDC power. The

M91xx actuators are available for use with on/off,

floating, proportional, or resistive controllers. These

bidirectional actuators do not require a damper

linkage, and are easily installed on a damper with a

round shaft up to 3/4 in. (19 mm) in diameter or a

square shaft up to 5/8 in. (16 mm). They may be direct

or remote mounted to a damper or mounted to a valve

using one of the M9000-5xx Valve Linkage Kits.

A single M91xx model delivers up to 280 lb·in (32 N·m)

of torque. Two AGx, GGx, or HGx models in tandem

deliver twice the torque or 560 lb·in (64 N·m). The

angle of rotation is mechanically adjustable from

0 to 90° in 5-degree increments. Integral auxiliary

switches are available to indicate end-stop position or

to perform switching functions at any angle within the

selected rotation range. Position feedback is available

through switches, a potentiometer, or a

0 (2) to 10 VDC signal.

Figure 1: M91xx Series Actuator

Features and Benefits

❑

Six Torques: 70 to 560 lb·in

(8 to 64 N·m)

Offer the most suitable choice for the

application

❑

Four Control Inputs Meet the needs of most applications

❑

Output Position Feedback

Provides simple, closed-loop control with

accurate position sensing

❑

Electronic Stall Detection Ensures higher reliability by deactivating the

actuator motor when a stall condition is

detected

❑

Master/Slave Operation Allows synchronized control for two actuators

stacked for tandem applications

❑

Zero and Span Adjustment

(HGx Models)

Allows sequential operation of dampers from

a single input signal of 0 (2) to 10 VDC,

0 (4) to 20 VDC, or 0 (4) to 20 mA

❑

Jumper-selectable Rotation

Direction and Manual Gear

Release

Simplify installation, setup, and field

adjustments

❑

NPT Threaded Housing Provides easy connection for electrical fittings

Summary of content (4 pages)

PAGE 1
Product Bulletin Issue Date M91xx 08/31/01 M9108, M9116, M9124, and M9132 Series Electric Non-spring Return Actuators The M91xx Series includes M9108, M9116, M9124, and M9132 models. All of these direct-mount electric actuators operate on 24 VAC or VDC power. The M91xx actuators are available for use with on/off, floating, proportional, or resistive controllers. These bidirectional actuators do not require a damper linkage, and are easily installed on a damper with a round shaft up to 3/4 in.
PAGE 2
Application Operation IMPORTANT: This device is not designed or intended to be used in or near environments where explosive vapors or gases could be present, or environments where substances corrosive to the device’s internal components could be present. IMPORTANT: The M91xx Series actuator is intended to control equipment under normal operating conditions.
PAGE 3
Repairs and Replacement Ordering Information Field repairs must not be made. To order a replacement or an accessory, refer to the Ordering Information section. Contact the nearest Johnson Controls representative, and specify the desired product code number from Table 1 or 2.
PAGE 4
Technical Data Product M91xx Series Electric Non-spring Return Actuators Power Requirements M9108-, M9116-AGx: 20 to 30 VAC at 50/60 Hz or 24 VDC ±10%; 6.5 VA supply, Class 2 All Other Models: 20 to 30 VAC at 50/60 Hz or 24 VDC ±10%; 7.