Product Overview

M9208-xxx-x Series Electric Spring Return Actuators Product Bulletin2
Application
M9208-GGx-x Series Proportional Actuators
For proportional modulation of dampers requiring up to
70 lb·in. (8 N·m) in HVAC systems that are controlled
by an electronic controller or positioner. The actuator
responds to 0 to 10 VDC, or 2 to 10 VDC control
signals. With the addition of a 500 ohm resistor, the
actuator responds to a 0 to 20 mA, or 4 to 20 mA
signal. A 0 to 10 VDC, or 2 to 10 VDC feedback signal
indicates position and provides support for
master-slave applications.
The M9208-GGA-2 actuators include plenum-rated
cables and are specially configured for installation in
spaces used for environmental air-handling purposes,
other than ducts and plenums, as specified in National
Fire Protection Association (NFPA) 70: National
Electrical Code section 300.22(C), Other Space Used
for Environmental Air. The space over a hung ceiling,
when used for environmental air handling purposes, is
an example of the type of space for which these
actuators are configured.
M9208-AGx-x Series On/Off and Floating Point
Actuators
For on/off control or modulation of dampers requiring
up to 70 lb·in. (8 N·m) in HVAC systems. Floating point
control can be provided from a triac or relay. On/off
control can be provided from a manual switch,
controller, auxiliary switch from a fan motor contactor,
or similar device.
The M9208-AGA-2 actuators include plenum-rated
cables and are specially configured for installation in
spaces used for environmental air-handling purposes
other than ducts and plenums as specified in National
Fire Protection Association (NFPA) 70: National
Electrical Code section 300.22(C), Other Space Used
for Environmental Air. The space over a hung ceiling,
when used for environmental air handling purposes, is
an example of the type of space for which these
actuators are configured.
Locking Manual Override with Auto
Release and Crank Storage
Allows manual positioning of the actuator hub with automatic return to normal
operation when power and control signal are restored.
Override Control
(Proportional Model Only)
Supports control system override applications through field wiring.
Integral Cables with Colored and
Numbered Conductors
Simplify installation and field wiring.
Integral Connectors for 3/8 in.
(10 mm) Flexible Metal Conduit (FMC)
Simplify installation and field wiring.
Optional Integrated Auxiliary
Switches
Provide two integrated, line-voltage-capable Single-Pole, Double-Throw (SPDT)
switches with one fixed and one adjustable switch point. Facilitates safety
interfacing or signaling.
UL, CE, and C-Tick Compliance Provides internationally recognized regulatory agency approvals.
Manufactured under International
Standards Organization (ISO) 9001
Quality Control Standards
Ensures quality.
5-Year Warranty Protects consumer investment.
Table 1: Features and Benefits (Part 2 of 2)
Features Benefits
IMPORTANT: Use these M9208-xxx-x Series
Electric Spring Return Actuators only to control
equipment under normal operating conditions.
Where failure or malfunction of the electric actuator
could lead to personal injury or property damage to
the controlled equipment or other property,
additional precautions must be designed into the
control system. Incorporate and maintain other
devices, such as supervisory or alarm systems or
safety or limit controls, intended to warn of or protect
against failure or malfunction of the electric actuator.
IMPORTANT: Before specifying M9208-xxx-x
Series Electric Spring Return Actuators for plenum
applications, verify acceptance of exposed plastic
materials in plenum areas with the local building
authority. Building codes for plenum requirements
vary by location. Some local building authorities
accept compliance to UL 1995, Heating and Cooling
Equipment, while others use different acceptance
criteria.