Product Overview
The Johnson Controls M9104-AGA-2S Series Electric Non-Spring-Return Actuator is designed for precise control in various HVAC applications. This direct-mount actuator operates on AC 24 V power and provides floating control. It is suitable for installation on VAV boxes, Variable Volume and Temperature (VVT) two-position zone applications, or small- to medium-sized dampers.
Key features include:
- Direct Shaft Mounting with Single-Screw Coupler: Simplifies installation and ensures secure gripping.
- 100,000 Cycle Rating: Ensures long-term reliability and service life.
- Synchronous Drive: Provides consistent rotation time regardless of load.
- 35 dB Nominal Audible Noise Rating: Suitable for environments requiring low noise levels.
- Short Travel Time: Offers quick response for two-position zone applications.
Product Visuals
Figure 1: Front view of a Johnson Controls Electric Non-Spring-Return Actuator. The image displays the blue casing, model number M9102-AGA-2S (representative of the series), torque rating (2Nm), IP42 rating, CE mark, ULus listing, and the wiring diagram for AC 24V power with Black, Red, and Orange terminals.
Setup and Installation
The M9104-AGA-2S actuator is designed for direct mounting. Ensure the power supply is disconnected before beginning installation.
- Shaft Preparation: The actuator can be mounted on a round shaft up to 1/2 inch (13 mm) in diameter or a 3/8 inch (10 mm) square shaft. Ensure the shaft is clean and free of burrs.
- Mounting: Position the actuator on the damper or VAV box shaft. Utilize the single-screw coupler for secure attachment, ensuring three-point shaft gripping.
- Wiring: Connect the actuator to an AC 24 V power source. Refer to the wiring diagram on the actuator label for correct terminal connections (Black, Red, Orange). The -2S models are equipped with plenum cables.
- Functional Check: After installation and wiring, apply power and verify proper operation, ensuring the actuator moves freely through its full range of motion.
Operating Instructions
The M9104 Series Actuator provides floating control. It operates by receiving control signals to drive the damper or valve to the desired position.
- Power Supply: The actuator requires an AC 24 V power supply at 50/60 Hz.
- Control Type: This model supports floating control (AGA).
- Running Torque: The M9104 Series provides a running torque of 35 lb·in (4 N·m).
- Nominal Travel Time (90°): 60 seconds at 60 Hz (72 seconds at 50 Hz).
- Manual Override: If equipped, refer to the specific product markings for any manual override procedures.
Maintenance
The Johnson Controls M9104-AGA-2S actuator is designed for long-term, maintenance-free operation. However, periodic inspection is recommended to ensure optimal performance.
- Visual Inspection: Annually inspect the actuator for any signs of physical damage, loose connections, or excessive dust accumulation.
- Mounting Security: Verify that the actuator remains securely mounted to the shaft and that all fasteners are tight.
- Wiring Integrity: Check wiring for fraying, corrosion, or loose terminals.
- Cleaning: If necessary, gently clean the exterior of the actuator with a dry, soft cloth. Do not use abrasive cleaners or solvents.
Troubleshooting
This section provides general guidance for common issues. For complex problems, contact technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Actuator not moving | No power; Incorrect wiring; Mechanical obstruction. | Check AC 24V power supply; Verify wiring connections; Remove any obstructions. |
| Actuator makes noise but doesn't move | Shaft seized; Internal damage. | Check for shaft binding; Contact technical support if internal damage is suspected. |
| Inaccurate positioning | Loose shaft coupling; Control signal issue. | Tighten shaft coupling; Verify control signal integrity. |
Specifications
- Model Number: M9104-AGA-2S
- Control Type: Floating (AGA)
- Power Supply: AC 24 V, 50/60 Hz
- Running Torque: 35 lb·in (4 N·m)
- Nominal Travel Time (90°): 60 seconds (60 Hz), 72 seconds (50 Hz)
- Audible Noise Rating: 35 dB Nominal
- Cycle Rating: 100,000 cycles
- Shaft Compatibility: Round up to 1/2 in. (13 mm) diameter, or 3/8 in. (10 mm) square shaft
- Product Dimensions: 8.2 x 4.8 x 4.5 inches
- Weight: 3 Pounds
- Manufacturer: Johnson Controls Inc
- First Available: September 5, 2013
Warranty Information
Johnson Controls products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the official warranty statement provided with your product or visit the Johnson Controls official website. Typically, products are covered against defects in materials and workmanship for a specified period from the date of purchase.
Customer Support
For technical assistance, troubleshooting beyond this manual, or spare parts inquiries, please contact Johnson Controls customer support.
- Website: www.johnsoncontrols.com
- Contact Information: Refer to the "Contact Us" section on the official website for regional phone numbers and email support.
