BAS Device SSO Library - Master Index
Akcel System Inc.
Building Automation System Field Reference
Version: 1.1 | Date: December 2025
About This Library
This library contains Quick Reference Standard Sequence of Operations (SSO) documents for common Building Automation System devices. Each SSO is designed for field use by technicians and includes:
- Device overview and specifications
- Safety requirements and PPE
- Installation checklist with step-by-step instructions
- Expected readings and proof-out tests
- Troubleshooting guide with common issues
- Escalation checklist and contacts
- Calibration procedures (where applicable)
- Tips and common issues
Format: Concise, checklist-driven, field-ready
Target Users: Installers, Field Specialists, Network Specialists, Programmers
Available SSO Documents
TEMPLATE
- SSO Template - Standard format template for creating new SSO documents
INPUT DEVICES - SENSORS
Temperature Sensors
- SSO Temp Sensor ✓ COMPLETE
- Space, duct, immersion, outdoor air
- Thermistor (10K Type II/III) and transmitter types
- Signal: Resistance / 0-10VDC / 4-20mA
- Most common BAS sensor
Humidity Sensors
- SSO Humidity Sensor ✓ COMPLETE
- Space and duct relative humidity measurement
- Capacitive polymer technology
- Signal: 0-10VDC / 4-20mA (0-100% RH)
- Often combined with temperature sensor
CO2 Sensors
- **SSO CO2 Sensor✓ COMPLETE
- Demand control ventilation (DCV)
- Non-dispersive infrared (NDIR) technology
- Signal: 0-10VDC / 4-20mA (0-2000 PPM typical)
- Requires warm-up period and annual calibration
Pressure Sensors (Differential)
- SSO Pressure Sensor ✓ COMPLETE
- Duct static pressure, filter ΔP, building pressurization
- Pressure tube installation and maintenance
- Signal: 0-10VDC / 4-20mA (various ranges)
- Includes water trap troubleshooting
Current Transducers
- SSO Current Transducer ✓ COMPLETE
- Motor current monitoring, proof of operation
- Split-core CT (current transformer) technology
- Signal: 0-10VDC / 4-20mA proportional to amperage
- Energy monitoring and fault detection
- SAFETY: High-voltage electrical work - qualified personnel only
Occupancy Sensors
- SSO Occupancy Sensor ✓ COMPLETE
- PIR (passive infrared), ultrasonic, and dual-tech
- Motion and presence detection for HVAC and lighting
- Adjustable time delay and sensitivity
- Coverage area planning and dead zone avoidance
Flow Switches
- **SSO Flow Switch✓ COMPLETE
- Proof of water flow (chilled, hot, condenser water)
- Paddle-type mechanical switches
- Pump status verification and interlock safety
- Installation requires system isolation
Additional Sensors (Coming Soon)
- SSO-Liquid-Level-Sensor.md - Tank and sump level monitoring
- SSO-Power-Meter.md - Energy monitoring and submetering
- SSO-Air-Quality-Sensor.md - VOC, PM2.5, multi-parameter sensors
OUTPUT DEVICES - ACTUATORS
Damper Actuators
- SSO Damper Actuator ✓ COMPLETE
- Modulating (0-100%) control
- OA, RA, EA, mixing box, VAV box dampers
- Torque sizing and coupling installation
- Spring return (SR) vs non-spring (NSR)
- Signal: 0-10VDC / 2-10VDC / 4-20mA input
Valve Actuators
- SSO Valve Actuator ✓ COMPLETE
- Modulating control for water valves
- Chilled water, hot water, condenser water, steam
- Force sizing and stroke length matching
- Fail-safe modes (normally open/closed)
- Signal: 0-10VDC / 2-10VDC / 4-20mA input
Relay Outputs
- SSO Relay Output ✓ COMPLETE
- Binary ON/OFF control
- Pumps, fans, heaters, stages, unit heaters
- Contact sizing for motor and resistive loads
- SPST, SPDT, DPDT configurations
- SAFETY: High-voltage applications - lockout required
VFD Control Integration
- SSO Vfd Control ✓ COMPLETE
- Variable frequency drive control via BAS
- 0-10VDC speed command + binary start/stop
- Parameter programming and motor setup
- Rotation direction verification critical
- SAFETY: High-voltage and stored energy - qualified personnel only
Additional Actuators (Coming Soon)
- SSO-Electric-Heat-Staging.md - Electric heater sequencing and control
- SSO-Pneumatic-Actuator.md - Pneumatic damper and valve control
BINARY INPUT DEVICES
Binary Input Modules
- SSO Binary Input ✓ COMPLETE
- Dry contact monitoring (NO/NC)
- Proof of operation (pumps, fans, equipment)
- Alarm monitoring (fire alarm, freeze stat, high limit)
- Status monitoring (filter, flow, door contacts)
- NO vs NC configuration critical
Additional Binary Inputs (Coming Soon)
- SSO-Status-Switch.md - End switches, limit switches, proof switches
- SSO-Fire-Alarm-Interface.md - Fire alarm system monitoring and integration
NETWORK & COMMUNICATION (Coming Soon)
- SSO-BACnet-Device.md - BACnet MS/TP and BACnet/IP devices
- SSO-Modbus-Device.md - Modbus RTU and Modbus TCP integration
- SSO-Network-Switch.md - Managed switch configuration for BAS
- SSO-Controller-Setup.md - DDC controller installation and commissioning
Document Organization
File Naming Convention
SSO-[DeviceType]-[Number].md- Example:
SSO-Temperature-Sensor-001.md
Version Control
- Each document includes version number and date
- Major revisions increment version (1.0 → 2.0)
- Minor updates increment decimal (1.0 → 1.1)
- Review cycle: Annual or as needed
Digital Access
- Mobile Access: QR codes on printed docs link to digital versions
- Offline Access: Download all SSOs for offline field use
- Search: Full-text search available in digital library
- Updates: Subscribe to notifications for document updates
How to Use This Library
For Installers
- Review SSO-Template-Brief.md to understand document structure
- Select SSO for device you’re installing
- Follow Installation Checklist step-by-step
- Complete Post-Install Verification
- Document installation in Service Fusion with photos
- Hand off to Field Specialist for commissioning
For Field Specialists
- Select SSO for device you’re commissioning
- Complete Pre-Power Verification tests
- Follow Power-Up Procedure
- Perform all Proof Out Tests
- Complete Calibration if required
- If problems arise, follow Troubleshooting section
- Complete Escalation Checklist before calling for help
For Network Specialists, Programmers, Graphic Developers
- Use SSOs to understand device specifications
- Reference Expected Readings for programming
- Use Troubleshooting to diagnose field issues remotely
- Understand device capabilities and limitations
For Project Managers
- Use SSOs for scope understanding
- Reference for timeline estimation
- Tool and material planning
- Quality control verification
- Training material for new hires
Training Integration
These SSO documents support the company training program:
New Hire Foundational Training
- Review SSO-Template to understand format
- Study SSO-Temperature-Sensor (most common device)
- Practice using checklists in training environment
Installer Qualification
- Use SSOs during installation tasks
- Complete post-install verification checklists
- Document installations per SSO requirements
Field Specialist Qualification
- Master proof-out procedures from SSOs
- Use troubleshooting sections systematically
- Understand escalation process
Specialization Training
- Network Specialists: Focus on communication device SSOs
- Programmers: Reference expected readings and device capabilities
- Graphic Developers: Understand device data points and ranges
Feedback & Continuous Improvement
Report Issues
- Errors or Omissions: Submit via Service Fusion ticket to Technical Training
- Suggested Improvements: Email [training@example.com]
- New Device Requests: Request SSO for devices not in library
Revision Process
- Field feedback collected quarterly
- Technical review by senior specialists
- Updates approved by Technical Lead
- New version published and distributed
- Notification sent to all field staff
Document Updates
- Critical Updates: Immediate notification via email/text
- Minor Updates: Included in quarterly revision
- Major Revisions: Training session for significant changes
Safety Notice
⚠️ CRITICAL SAFETY REMINDERS
- Always follow company safety procedures - SSOs supplement but don’t replace
- Wear required PPE - Don’t skip safety equipment
- Lockout/Tagout - Required for high-voltage and rotating equipment
- Verify voltage - Never assume power is off - test with meter
- Qualified personnel for electrical work - Some devices require licensed electrician
- When in doubt, ask - Better to ask than get hurt
- Emergency: 911 - For serious injuries, call emergency services immediately
Devices Requiring Special Qualifications
- Current Transducers: High-voltage electrical work - qualified electrician preferred
- VFD Control: High-voltage and stored energy - qualified personnel only
- Relay Outputs: High-voltage applications - lockout/tagout required
- Flow Switches: System isolation required - coordinate with mechanical contractor
Your safety is more important than any deadline.
Additional Resources
Internal Documentation
- [New Hire Fundamental Training](../../Roles/New Hire Fundamental Training.md)
- Installer Qualification Tasks
- [Field Specialist Qualification Tasks](../../Roles/Field Specialist.md)
- [Project Lifecycle](../../Project Cycle.md)
- [Service Call Lifecycle](../../Service Cycle.md)
External Resources
- Manufacturer installation manuals (always consult for device-specific details)
- ASHRAE standards and guidelines
- National Electrical Code (NEC)
- OSHA safety standards
- NFPA 70E (Electrical Safety in the Workplace)
- Local building codes and regulations
Company Contacts
- Technical Training: [Phone/Email]
- Safety Manager: [Phone/Email]
- Dispatch Coordinator: [Phone]
- After-Hours Emergency: [Phone]
Document Statistics
Current Library:
- Template: 1
- Input Devices: 7 (Temperature, Humidity, CO2, Pressure, Current, Occupancy, Flow)
- Output Devices: 4 (Damper Actuator, Valve Actuator, Relay, VFD Control)
- Binary Inputs: 1 (Binary Input Module)
- Total Active SSOs: 13
In Development:
- Input Devices: 3
- Output Devices: 2
- Binary Inputs: 2
- Network Devices: 4
- Total Planned: 11
Target Library Size: 25-30 SSO documents covering 95% of common field installations
Completion Status: 13/24 (54%)
Quick Reference Card
Print this page for your truck/toolbox:
Most Common Devices (Memorize These)
- Temperature Sensor - SSO Temp Sensor.md
- Damper Actuator - SSO Damper Actuator.md
- Valve Actuator - SSO Valve Actuator.md
- Relay Output - SSO Relay Output.md
- Binary Input - SSO Binary Input.md
Pre-Install Checklist (Every Device)
- Correct device model verified
- Location matches blueprints
- Required tools and materials on hand
- Safety equipment worn (PPE)
- Building operator notified
- Lockout/tagout if required
Universal Troubleshooting (Every Device)
- Check supply voltage
- Verify wiring connections tight
- Test continuity end-to-end
- Compare to wiring diagram
- Check for physical damage
- Document all readings
- Take photos
- Complete escalation checklist before calling
High-Voltage Safety (Current, VFD, Relay)
- ⚠️ Lock out power source
- ⚠️ Verify 0V with meter
- ⚠️ Wear insulated gloves
- ⚠️ Arc-rated clothing if required
- ⚠️ Only qualified personnel
Emergency Contacts
- Supervisor: [Phone]
- Dispatch: [Phone]
- Safety: [Phone]
- Emergency: 911
Revision History
| Version | Date | Changes | Author |
|---|---|---|---|
| 1.0 | Dec 2025 | Initial library creation with 7 core SSOs | Technical Training Dept |
| 1.1 | Dec 2025 | Added 6 additional SSOs (Current, VFD, Binary Input, Occupancy, Flow) | Technical Training Dept |
Document Owner: Technical Training Department
Last Updated: December 2025
Next Review: March 2026
Feedback: training@example.com
“Quality installations start with proper documentation. Use these SSOs on every job.”