Title :
Networking Fan Coil Controller for HVAC Systems
Author :
Chung, Sheng-Luen ; Fu, Yu
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei
Abstract :
In contrast to conventional standalone fan coil unit (FCU) that serves a designated conditioning zone, the networking fan coil controller (NFCC), investigated in this paper, is designed for air conditioning installed in spaces of medium to large size. With an architecture that separates user interface panel from the embedded control core, the proposed NFCC is able to control up to 255 ceiling mounted fan coil unit modules through Modbus network by just one wall mounted user interface module. In this regard, this paper addresses the following three issues: (1) the design of the underlined communication protocol employed between ceiling modules and the wall module; (2) the implementation issues relating to storage and packaging of setting parameters; broadcast and unicast communication modes; and (3) the communication enabling technique for master/slave architecture design. Operational scenarios that detail phases of initialization, normal control setting in groups, and selected ceiling module, are included to demonstrate the feasibility of the proposed networking fan coil unit
Keywords :
HVAC; control system synthesis; fans; user interfaces; HVAC systems; Modbus network; ceiling mounted fan coil unit modules; communication enabling technique; communication protocol; embedded control core; fan coil unit; master-slave architecture design; networking fan coil controller design; user interface panel; Air conditioning; Broadcasting; Coils; Communication system control; Control systems; Packaging; Protocols; Size control; Unicast; User interfaces; HVAC; Modbus; communication enabling technique; fan coil unit;
Conference_Titel :
Industrial Electronics, 2006 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0496-7
Electronic_ISBN :
1-4244-0497-5
DOI :
10.1109/ISIE.2006.296093