Building Control Board PCBA for HVAC and Smart Building Automation

Building Control Board PCBA for Smart Building Automation

Custom building control board PCBA for building automation systems, HVAC equipment, security systems and facility management applications. The board can integrate HVAC control, access control, security interfaces and building communication protocols on a single PCBA platform.

The solution supports OEM and ODM development from schematic design and PCB layout through SMT assembly, firmware loading, testing and production.

Building Automation Control Board

Building control boards are used to connect and manage different systems within commercial and industrial facilities. Typical functions include HVAC control, ventilation, lighting, access control and security monitoring.

The PCBA can be configured for building automation systems and BMS controllers with digital and analog I/O, fieldbus communication and application-specific control interfaces.

HVAC Control Board

The HVAC control board supports temperature sensing, thermostat inputs, fan coil control, VAV controllers and damper actuator interfaces.

Depending on the system design, the board can handle configurable digital and analog inputs and outputs for temperature sensors, actuators, fans and other HVAC equipment.

BAS and BMS Communication

The building control PCBA supports common building automation communication protocols, including RS485, RS232, Modbus RTU, Modbus TCP and BACnet MS/TP.

KNX integration is also available for applicable building automation projects. Ethernet, WiFi and BLE connectivity can be added when remote monitoring or network communication is required.

Security and Access Control

The same PCBA platform can be configured for security and access control applications.

Door access relay outputs, alarm zone inputs, tamper detection and siren outputs can be integrated into the control board for building security systems.

Configurable I/O

The controller supports configurable DI, DO, AI and AO channels. Typical configurations include 4 to 32 I/O channels depending on the control requirements.

This allows the board to interface with sensors, switches, relays, actuators and other building automation equipment.

Power Supply and Protection

The building control boards support 24V AC/DC and 12V DC power inputs. Power protection can be incorporated into the design for building control cabinets and other facility equipment.

Surge protection and suitable power management circuits can be configured according to the application.

SMT and DIP Assembly

The PCBA supports both SMT and DIP assembly for mixed-technology building control boards.

The manufacturing process can include PCB fabrication, component sourcing, SMT placement, DIP insertion, soldering, inspection, firmware loading and functional testing.

SPI, AOI, X-Ray, ICT, FCT and burn-in testing are available according to project requirements.

PCB Manufacturing

The building control boards support 2 to 8 layer PCB designs, including controlled impedance requirements for fieldbus communication traces.

PCB materials and board construction can be selected according to the electrical, mechanical and operating requirements of the building automation system.

Industrial Operating Conditions

Building control boards may be installed in mechanical rooms, control cabinets and outdoor equipment enclosures. The standard operating temperature range specified for this solution is -20°C to +70°C, with industrial-grade options available.

Components can also be selected for long-term operation in building automation and facility management equipment.

OEM and ODM Building Control PCBA

The building control board can be customized according to customer schematics, specifications or existing hardware requirements.

OEM and ODM services can cover schematic design, PCB layout, component selection, PCB fabrication, SMT and DIP assembly, firmware loading, testing and production.

Enclosure integration support is also available for projects requiring a complete controller assembly.

Building Control Board Applications

Building Automation Systems

Control boards for BAS and BMS systems used to manage HVAC, lighting, ventilation and other building equipment.

HVAC Control Systems

Thermostat, fan coil, VAV and damper control boards for commercial and industrial HVAC systems.

Access Control Systems

Control boards for door access systems, electronic locks, relay control and building entry management.

Security Alarm Systems

PCBA for alarm zones, intrusion detection, tamper monitoring and siren control.

Smart Lighting Control

Control boards for connected lighting systems and facility-level energy management.

Energy Management Systems

Building controllers for monitoring and controlling energy-related equipment and facility systems.

Fire Alarm Interfaces

Interface boards for connecting building automation equipment with fire alarm and emergency systems.

Elevator and Escalator Monitoring

Control and monitoring electronics for elevator and escalator equipment integration.

Technical Specifications

• Product Type: Building Control Board PCBA / BAS Controller Board

• Controller Platform: ARM Cortex-M, STM32, NXP, ESP32 and industrial MCU options

• PCB Layers: 2–8 layers

• Assembly: SMT + DIP

• Fieldbus: RS485, RS232, Modbus RTU/TCP, BACnet MS/TP

• Optional Protocol: KNX

• Communication: Ethernet 10/100M, WiFi, BLE

• HVAC Interfaces: Thermostat, temperature sensing, damper actuator, VAV and fan coil control

• Security Interfaces: Door access relays, alarm zones, tamper inputs and siren outputs

• I/O: DI / DO / AI / AO, typically 4–32 channels

• Power Input: 24V AC/DC, 12V DC

• Operating Temperature: -20°C to +70°C

• Inspection: SPI, AOI, X-Ray, ICT and FCT

• Reliability Testing: Burn-in testing

• Quality Standard: ISO9001:2015, IPC-A-610 Class 2/3

• Compliance Support: CE / FCC / RoHS / REACH documentation

• Production: Prototype, small batch and mass production

Custom Building Control PCBA Manufacturing

From HVAC controllers and BMS boards to access control and security electronics, the building control PCBA can be customized for different smart facility management applications.

Customers can provide schematics, Gerber files, BOM data or product requirements for PCB design, PCBA manufacturing and production evaluation.