Central Control System
RF Wireless Communication
Wireless communication using ISM bands that do not require communication lines
01
①When controlling fan coil units (FCU) individually or as a group, wired RS485 communication requires the connection of ommunication lines o the products. However, RF wireless communication does not require the connection of ommunication lines
②No wiring work is needed, reducing the need for checking communication lines issues such as wiring error, disconnection, or poor ontact, which shortens commissioning time
02
①The use of low-frequency ISM bands allows for communication distances of up to 2 km (in open areas), with minimal impact from building structures. This enables communication over significant distances even within buildings, allowing for the control of remote FCUs.
②Internal communication operates in the 447 MHz band, while central control communication operates in the 424 MHz band. Each band uses 11 channels, minimizing mutual interference.
③Unique algorithms are applied to minimize interference on the same frequency in close proximity, ensuring that controlling multiple CUs within a short range does not lead to interference.
03
①The RF modem can be used by connecting to the internal or external communication terminal of the existing CU. The ID is read and used from the FCU, and there is no need to set the ID again.
②The RF modem can be used by connecting to the RS485 communication terminal of the existing ateway.
③The RF remote control is capable of two-way communication and has all the functions of conventional wired remote control. It can be powered permanently using the power terminal, eliminating thelimitations and inconveniences associated with battery usage (such as limited usage time and frequent battery replacement).
