Packing list and installation components 1. Please check the packing list of the centralized controller,whether the components are complete. Name Quantity Remarks Centralized controller Cross-recessed head tapping GB845/ST3.9*25-C-H(S) screws Fastening plastic expansion pipe Φ6*30 Installation & Operation Manual Matching 120 Ω...
1.2 Installation instructions Installation instructions 1) Connect 220VAC power to the L、N terminals of the centralized controller directly. 2) Do not lay the signal wire and the power wire of the centralized controller in the same power wire pipe, there should be 300~500mm distance between two pipes. 3) The signal wire of centralized controller should not exceed 1200m.
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Insert the flathead screwdriver into the concave on the upper side of the box, and rotate slightly to open the upper cover(3 places). Fix the screws of the centralized controller (GB845/ST3.9*25) Base Dial code Address dial code Front cover Dial code position Address range 0 0 ~ 15 Fig.
1.4 System wiring instruction Network air conditioner wiring diagram (two types for indoor unit: one is the main control board with an external network interface module; the other is the network interface module is built in the main control board). RS232 pin buckle: insert the COM port of computer One computer can connect 16 centralized controllers at most Reliably ground the shielding terminal...
Note The RS485-to-RS232 module and the wires in the wiring diagram are used when the network system needs to connect with the computer only. One computer can connect with 16 centralized controllers at most, Namely the maximum of indoor units is 16X64=1024 ,that a network system can connect.
1.6 System wiring instruction. 1) Wiring diagram of building net w ork air conditioning s y stem. (a) The wiring system is good for communication,recommended (b) The wiring system is bad for communication,not recommended 2) System wiring diagram of centralized controller and indoor unit of air conditioner. Both of the follo w ing w i ring mo d e s of centralized controller a nd indoor unit are applicable: (The number of indoor unit s connected w i th each centralized controller is not beyond 64) Indoor unit...
2.1 Function instructions 1. Centralized controller is used for controlling and data querying of air conditioners in the network. Each centralized controller can be connected to maximum 64 indoor units, through 485 communication can to form an air conditioner LAN and realize the centralized controlling network in the air conditioner.
Key words 2.3.1 State indication 1. LED for state indication 1) Normal state ① On The LED will be on when any one of the following occur: a) In the centralized controller network, one or more air conditioners are under operating state.
of the centralized controller is connected, all air conditioners in the nerwork of the centralized controller will start up compulsorily. By default, they will run in the cooling mood. The startup and shutdown operations of the centralized controller and computer and all functional modules will be disabled (only the command of startup is sent to the air conditioner,without affecting operation of the remote controller after startup) until the forced on switch is break.
2) Operation Can set the heating mode locking or cooling mode locking. Under mode locking state, if set the new mode locking, it must be unlocking first, then can operate the new mode locking. ① Can lock or unlock through the computer. ②...
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1) One or more air conditioners under ON state (include timing process of timing ON and OFF) “ ” key only has short press function. Only send the OFF order to the air conditioners with ON state, not for OFF state units. The memory function is activated, the current state of all air conditioners is memo- rized.
2.4.1 Key operaion instruction 1. Query key “ ” Any time when you press the key, the selected operation mode is to query the operation status of the air conditioner. By default, the first in-service air conditioner will be queried. 2.
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9. Rightward key “ ” In the query mode, when the key is pressed, the next in-service air conditioner is selected,and its operation status data will be displayed.If it is currently on the last air conditioner, the first one is selected and its data displays, when the key is pressed. If this key is hold down long, the address will increase one by one.
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13. Reduce key “ ” 1) Query mode Press this “ ” key, display the data of the previous page. If it is now in the first page, press the key “ ” again and the last page will be displayed.
2.4.2 LCD instruction 1. General display data 1) General display data is displayed in all display pages. ①The icon displayes when the centralized controller communicates with the computer or gateway normally, otherwise, it does’t display. ②The icon displayes when the centralized controller communicates with the functional module normally,otherwise, it does’t display.
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a. The array of the liquid crystal display is composed of 4X16 grids, and each grid is composed of two blocks of different sizes (as shown in the above figure). The status indication table is as follows: Status Constantly on Slow blink Fast blink Not bright...
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2) Description of the query page Fig 2.6 The example diagram of the query page ①The LCD display shows the query page, and the air conditioner with the address of 01 is being queried. ②Mode of the air conditioner with the address 01 is: Cooling, strong air, swing on, indoor temperature 22 °C,set temperature 20°C, cooling mode “lock”.
4) Fault page display description Fig 2.8 The example diagram of fault page ①Query the air conditioner with the address of 08 in the query page. ②The air conditioner with the address of 08 is faulty, and fault code is 08. The big black dot below (00+,08) blinks.
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00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 a. Function selection b. Parameter selection c. Reminding d. “Set successfully” reminding Fig 2.9 Filter net in addition to the dust function involves of show a contents 2) Function setting ①...
2.4.4 Fault and protection code table Fault code Fault content Description Other faults Water level detection faults Reserved Cleaning fault Inverter module protection Over-current of compressor(4 times) Fault of communication between main board and display board Air speed detection out of control EEPROM error Zero crossing detection error Outdoor unit fault protection...
2.5 Technical indices and requirements 1. EMC, EMI comply with the CE certification requirements. 2. Electrical safety comply with GB4706.32-2004, GB/T7725-2004. Installation & Owner‘s Manual...