2 M9200 Series Electric Spring Return Actuator Product/Technical Bulletin
A
pplication Overview
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.
M9200 actuators are designed to position air dampers
and valves in HVAC systems. Applications include:
•
positioning return air, exhaust, or outdoor air
dampers
•
controlling face and bypass dampers
•
positioning blades for variable volume fans
•
positioning valves used with an M9000-5xx Valve
Linkage
Refer to the manufacturer’s information to properly size
the damper, valve, and/or actuator.
O
peration
IMPORTANT:
All M9200 Series actuators are
designed for use only in
conjunction with operating controls.
Where an operating control failure
would result in personal injury
and/or loss of property, it is the
responsibility of the installer to add
safety devices or alarm systems
that protect against, and/or warn of,
control failure.
M9200 actuators operate on 24 VAC at 50/60 Hz
or 24 VDC. They use a DC motor with stall detection
circuitry that operates throughout the entire stroke. The
proportional and resistive actuators employ noise
filtering techniques on the control signal to eliminate
response to spurious noise.
Rotation is mechanically limited to 93° by integral
end-stops. The position of the actuator is visually
indicated from 0 to 90° on the cover. An anti-rotation
bracket prevents lateral movement of the actuator.
The damper position can be set manually with the
manual override feature in the event of a power failure.
I
nstallation
Parts Included
•
M9216
actuator
•
NPT conduit adaptor (two included for actuators
with switches or a feedback potentiometer)
•
anti-rotation bracket
•
two No. 12-24 sheet metal screws
•
5 mm manual crank
Tools Required
•
1/4 in. (7 mm) and 1/8 in. (3 mm) flat-blade
screwdrivers
•
Phillips No. 2 screwdriver
•
center
punch
•
adjustable wrench or 7 mm and 10 mm nut drivers
•
needle-nose
pliers
•
DVM or M9000-200 Commissioning Tool (for
models with zero and span potentiometers)
