Description
The Johnson Controls M9208-GGC-3 is a high-performance spring return direct coupled actuator engineered for precise proportional control of HVAC dampers and valves in commercial building automation applications. Designed to deliver reliable, fail-safe operation, this actuator springs back to its default position upon loss of power, ensuring system safety and equipment protection.
Control & Electrical Specifications
- Supply Voltage: 24 Vac / 24 Vdc
- Control Signal Inputs: 0–10 Vdc, 2–10 Vdc, and (0)4–20 mA (with included 500 Ohm resistor)
- Control Type: Proportional
- Power-On Run Time: 150 seconds
Mechanical Specifications
- Torque Output: 70 lb-in
- Mounting: Direct coupled — no crank arm or linkage required
- Fail-Safe Action: Spring return to default position on power loss
- Auxiliary Switch: 2 SPDT auxiliary switches included
Wiring & Connectivity
- Cable Length: 48-inch appliance cable
- Connector: Integral 3/8″ Flexible Metal Conduit (FMC) connector for secure, code-compliant wiring
Key Features & Benefits
- Versatile multi-signal input compatibility (voltage and current) for broad BAS integration
- Included 500 Ohm resistor enables direct 4–20 mA current signal operation
- Spring return fail-safe design protects building systems during power interruptions
- Direct coupled design simplifies installation and reduces maintenance
- Integral FMC connector streamlines field wiring and meets conduit requirements
- Dual SPDT auxiliary switches provide end-of-travel feedback for control panels and interlocks
- Compact, robust construction suited for commercial and light industrial HVAC environments
Ideal Applications
- VAV and constant volume air handling units
- Damper control in commercial HVAC systems
- Building automation and energy management systems
- Fan coil units and terminal box control
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