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SYSTO Fan Coil Unit Control System Board

The SYSTO Fan Coil Unit Control Board offers dependable, easy-to-integrate HVAC control for hotels, offices and homes. Backed by 20+ years of global experience, SYSTO provides OEM/ODM support and strict quality control for stable FCU performance.
Model
QD73A
Product Type
Fan Coil Unit Control System Board
Temperature Range
16°C – 30°C
Fan Speeds
3 levels (Low / Medium / High)
Working Modes
auto, cooling, heating and ventilation
Control Functions
Timer ON/OFF (1–16 hours), Sleep Mode, Swing Control
UNIT TYPE
FAN COIL CONTROLLER
Product Information

Overview

The SYSTO Fan Coil Unit Control System Board is a robust, easy-to-install solution designed to manage fan coil units (FCUs) in hotels, office buildings, residential complexes and commercial HVAC systems. As a trusted A/C control board, it supports precise fan speed control, valve or actuator outputs, and multiple thermostat interfaces to deliver comfortable, energy-efficient operation.

Key Features

Reliable Performance

Built with high-quality components and strict quality control, the FCU control board ensures stable operation under continuous use. SYSTO’s long supply chain experience and testing standards reduce failure rates and extend service life.

Flexible Compatibility

The board supports common thermostat protocols, multi-speed fan control, and both analog and digital inputs. This flexibility makes it simple to replace old units or integrate into new HVAC designs without major rewiring.

Energy Efficiency & Control

Intelligent control logic helps optimize fan and valve operation, reducing energy consumption and improving indoor comfort. Built-in options for scheduling and temperature hysteresis prevent short-cycling and excess energy use.

Technical Benefits

• Clear wiring labels and compact PCB layout for quick installation.
• Protective circuits for surge, reverse polarity and overheating.
• Firmware options for custom control strategies—ideal for OEM and ODM projects.
• Supports centralized BMS signals for building management integration.

Why Choose SYSTO

Founded in 1998, Guangzhou SYSTO Trading Co., Ltd. brings over two decades of global experience in remote control and HVAC components. We supply more than 30 countries and offer full OEM/ODM services, competitive pricing, and reliable after-sales support. Choosing SYSTO means you get a tested Fan Coil Unit Control Board with traceable quality and professional technical support.

Applications

Ideal for hotels, serviced apartments, hospitals, office buildings and residential projects where dependable FCU control is required. SYSTO’s A/C control board is suitable for both retrofit and new installations.

Contact & Customization

We provide customization for firmware, connectors and packaging to meet your project specifications. Contact SYSTO’s engineering team to discuss sample orders, bulk purchasing, and technical integration support.

Product Image

  • Accessories of Universal fan coil unit control system QD73A

Certifications

  • DL-241123014EC-CE-Certification-of-remote-control

    DL-241123014EC-CE-Certification-of-remote-control

  • CERTIFICATE-of-EC-REP

    CERTIFICATE-of-EC-REP

  • DL-20230211001C-ROHS

    DL-20230211001C-ROHS

Q&A

Can it work with older Samsung TVs?

It is designed for 2021–2025 Samsung Smart TVs with Bluetooth; not compatible with non-smart or IR-only models.

Can I track my order shipment?

Yes, a tracking number will be provided once your order is shipped.

What should I do if the remote is unresponsive?

Check battery polarity, replace low batteries, ensure line of sight to the device, and confirm the correct device mode is selected.

Do you own your own brands?

Yes — SUN, iHandy, and Qunda.

About other questions pls contact me directily.

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Guangzhou SYSTO International Trading Limited
Room 1606, No. 65, Zhongshan Seven Road, Liwan District, Guangzhou, Guangdong, China.
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