In central air conditioning systems, fan coil unit (FCU) thermostats are often regarded as simple control accessories. In reality, they have a significant impact on system operating conditions and long-term reliability. With proper selection and correct configuration, FCU thermostats do not shorten the lifespan of HVAC systems—in fact, they can help extend equipment life and…
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In modern buildings, achieving a comfortable, energy-efficient, and flexible indoor environment is a key objective of HVAC system design. Fan Coil Unit (FCU) thermostats play a crucial role in zoning temperature control by allowing different areas to be regulated independently based on actual usage needs. This article explains how zoning temperature control is achieved through…
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In modern buildings, fan coil unit thermostats (FCU thermostats) play a critical role in maintaining indoor comfort and precise temperature control. With the rise of smart buildings and IoT technology, more and more FCU thermostats now support multi-protocol communication, such as Modbus, BACnet, and KNX. This article explores the advantages of multi-protocol support in FCU…
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In commercial buildings, hotels, hospitals, and large residential projects, fan coil unit (FCU) systems are among the most widely used HVAC terminal solutions. During system selection and project implementation, the performance indicators of fan coil unit thermostats play a decisive role in system stability, installation efficiency, and long-term maintenance costs. For contractors, choosing the right…
Read article Fan coil unit (FCU) systems are widely used in commercial buildings and residential projects due to their flexible zoning and precise terminal control. Within these systems, the fan coil unit thermostat plays a central role by sensing room temperature, switching operating modes, and controlling equipment operation. As buildings experience changing thermal demands across spring, summer,…
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In commercial buildings such as offices, hotels, hospitals, and shopping centers, HVAC systems are often the largest source of energy consumption. Among them, fan coil unit (FCU) systems are widely used due to their flexibility and zoning capability. However, because they operate for long hours and are installed in large numbers, their energy performance has…
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In building renovation and HVAC retrofit projects, upgrading fan coil unit (FCU) thermostats is often one of the most cost-effective improvements. Compared with replacing the entire air-conditioning system, thermostat upgrades require less construction work and deliver quick results. However, improper selection or installation can lead to unstable control, comfort issues, or even increased energy consumption.…
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In new construction projects, HVAC system design is critical for ensuring indoor comfort, energy efficiency, and system reliability. Fan coil unit (FCU) thermostats are key control nodes in these systems, and their proper configuration directly affects temperature regulation and energy management. This article provides configuration recommendations for FCU thermostats in new projects, covering thermostat type…
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Fan coil unit (FCU) thermostats are key control components in HVAC systems, responsible for regulating indoor temperature and fan operation. Over time, thermostats may experience aging, malfunctions, or compatibility issues that can affect system performance. Timely determination of whether a thermostat needs replacement is essential for maintaining stable operation and energy efficiency. This article outlines…
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Fan coil unit (FCU) thermostats play a key role in HVAC systems, regulating indoor temperature, fan speed, and valve position to ensure comfort and energy efficiency. However, during long-term operation, thermostats may experience faults. To alert users, the system displays error codes that indicate specific issues. Understanding these error codes is essential for quickly diagnosing…
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