Description
The Johnson Controls M9320-HGA-2 is a direct-mount electric non-spring-return damper actuator - 180 lb·in (20 N·m), 24 VAC/VDC, proportional control with adjustable span and offset, 90-second run time, with a 48 in. halogen-free cable.
In Johnson Controls' words: "The M9300 Series Electric Non-Spring Return Actuators provide control of dampers in HVAC Systems from 8 to 35 Nm rated torque. These bidirectional actuators do not require a damper linkage and are easily installed on round shafts or square shafts. An optional line voltage auxiliary switch kit can be field installed to indicate an end-stop position or perform switching functions within the selected rotation range."
Published specification:
* Running torque: 180 lb·in (20 N·m)
* Control: proportional - DC 0(2) to 10 V or 0(4) to 20 mA (field-furnished resistor), with adjustable offset and span
* Offset: DC 0 to 10 V ' Span: DC 2 to 10 V
* Control impedance: 100k ohm
* Feedback signal: DC 0(2) to 10 V
* Supply: 24 VAC ±20%, 5.7 VA; or 24 VDC ±10%, 2.1 W
* Transformer sizing: 7 VA minimum
* Rotation time: 90 seconds; auto-calibration time 35 seconds
* Rotation range: 95°
* Shafts: round 3/8 in. (10 mm) up to 1-1/16 in. (27 mm); square 3/8 in. (10 mm) up to 3/4 in.
* Electrical connection: 48 in. (1 m) halogen-free cable
* Life: 100,000 full-stroke cycles; 2,500,000 repositions
* Position and feedback accuracy: 5%
* Enclosure: IP54; plenum rated (UL 2043)
* Ambient: operating -22 to 140°F (-30 to 60°C), 90% RH non-condensing
This is the current-generation replacement for several older Johnson Controls actuators. In the manufacturer's 2025 replacement cross-reference, a number of legacy M9116 codes map onto the M9320-HGA-2 (with a mounting kit where needed). If you are replacing a discontinued unit rather than specifying new, this is very likely the part you have been pointed at - but check the torque and the shaft before you commit, because it is not a like-for-like swap.
Non-spring-return - read this before specifying. The M9300 Series holds its last position when power is lost. It does not drive to a fail-safe position. Do not use it on an outdoor air, freeze protection or smoke damper where the sequence relies on the damper closing on power failure - that duty needs a spring-return actuator such as the M9220.
It takes a much bigger shaft than the smaller M9300 models. Where the M9308 and M9310 clamp onto 3/8 to 3/4 in. round, the M9320 goes up to 1-1/16 in. (27 mm) round and 3/4 in. square - so it will take a jackshaft directly rather than needing an adapter kit.
Adjustable offset and span, and it self-calibrates. The H code lets you assign the actuator a slice of the control signal - offset programmable DC 0 to 10 V, span across DC 2 to 10 V - so two units can be sequenced from one controller output. Auto-calibration takes 35 seconds and sets the stroke to the damper automatically. Mode configuration switches permit "calibration, input signal range selection, and control logic reversal for proportional control", so a reversed sequence is a switch setting rather than a re-wire.
Long service life. 100,000 full-stroke cycles and 2,500,000 repositions - the reposition figure is the one that matters on a modulating loop, where the actuator nudges constantly and rarely full-strokes.
One limitation worth knowing: Johnson Controls states that only the M9335-HGA-2 in this family supports tandem or collective mounting - "all other M9300 Series Actuators do not feature a master/slave auto configuration capability". So the M9320 cannot be paired for double torque. If you need more than 180 lb·in, step up to the 310 lb·in (35 N·m) M9335 rather than planning a tandem set.
Other features: electronic stall detection that protects from overload at all angles of rotation; a microprocessor-controlled brushless DC motor giving constant runtime independent of torque; integral cables with coloured and numbered conductors; optional integral 1/2 in. (13 mm) threaded conduit connectors; and a small footprint that allows application in tighter spaces than the older M9100 Series.
* Brand / Manufacturer: Johnson Controls
* Model / Part Number: M9320-HGA-2
* Series: M9300 Series electric non-spring-return actuators
* Torque: 180 lb·in (20 N·m)
* Control: Proportional with adjustable offset and span
* Feedback: DC 0(2) to 10 V
* Supply: 24 VAC / 24 VDC - 7 VA transformer minimum
* Run time: 90 seconds
* Spring return: No - holds last position on power loss
* Condition: New
We stock the Johnson Controls electric actuator ranges from 18 to 310 lb·in, spring return and non-spring return.
Johnson Controls / Johnson Controls
M9320-HGA-2 / M9320HGA2
M9320-HGA-2 / M9320HGA2
Warranty Information
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B2E Surplus LLC is a non-authorized stocking distributor for this brand. We are also known as a ""surplus"", ""discount"", ""liquidator"", or ""gray market"" supplier. We are not a factory-authorized distributor of this product. The Original Manufacturer’s Warranty does not apply. B2E Surplus LLC's standard 90-day warranty will apply. B2E Surplus LLC makes no representations as to your ability or right to download, re-distribute, or otherwise obtain products from this manufacturer, its distributors, or any other source. It is your obligation to comply with the terms of any rules obtaining or installing this product.
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