American AutoMatrix (AAM) has provided building automation systems to commercial and institutional buildings for decades. If your building runs AAM equipment — whether newer BuildingPoint products or legacy BGP, AAC, or MAXSYS systems — you have unique considerations for maintenance, integration, and upgrades.
At Controls NYC, we have deep expertise with American AutoMatrix systems. This guide shares practical insights for building owners managing AAM infrastructure.
Understanding Your AAM System
AAM Product Evolution
MAXSYS
Early generation controllers — the foundation of many legacy AAM installations.
BGP (Broad Graphic Panel)
Graphics and supervisory interface for monitoring and control.
AAC (Advanced Application Controller)
Equipment-level controllers for air handlers, chillers, and central plant.
BuildingPoint & Unity
Current web-based platform and controller line with BACnet support.
Communication Protocols
AmNet: Proprietary AAM network protocol used in legacy systems
BACnet: Supported on newer controllers and BuildingPoint
Modbus: Available for some equipment integration
Common AAM Challenges
Finding Qualified Service: AAM has a smaller market presence than Johnson Controls, Honeywell, or Siemens, meaning fewer contractors are familiar with these systems.
Parts and Support: Some legacy components are discontinued, and replacement parts may require searching secondary markets.
Integration Requirements: AmNet protocol limits third-party integration, and older systems lack modern connectivity.
Integration Strategies
- ✓ Modern web-based interface
- ✓ Integration with legacy AmNet devices
- ✓ BACnet connectivity for new equipment
- ✓ Improved trending and reporting
- ⚠ Preserves AAM controller investment
- ✓ AmNet drivers available
- ✓ BACnet connection to newer controllers
- ✓ Multi-vendor integration
- ✓ Competitive service from integrators
- ⚠ Provides vendor independence
Strategy 3: Gradual Migration
Replace AAM controllers over time with standard BACnet devices:
- Start with new supervisory platform
- Integrate existing AAM controllers
- Replace controllers as they fail or during renovations
- Use any BACnet-compatible controllers for replacements
Practical Integration Considerations
AmNet Integration
For buildings with significant AmNet infrastructure:
- Document AmNet network topology and addressing
- Verify cable condition and termination
- Test communication before starting integration
- Plan for gradual AmNet retirement
Preserving Field Devices
Sensors and actuators connected to AAM controllers often have standard signals that can be reused:
• 4-20mA and 0-10V sensors work with any controller
• 24V actuators are standard across manufacturers
• Evaluate wiring condition before assuming reuse
Cost Considerations
What to Look For in a Service Provider
- Documented AAM experience and training
- Access to AAM parts and technical support
- Ability to work with both legacy and current AAM products
- BACnet and integration expertise for hybrid environments
Why Controls NYC for AAM Systems
"American AutoMatrix is one of our specialties. We have years of experience with all AAM product generations and a deep understanding of AmNet protocol and integration."
Whether you need ongoing support for your AAM system, want to integrate it with other building systems, or are planning a migration to a different platform, we can help.
Contact us to discuss your AAM system.
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