Introduction to SICC-A Module Combination

Shini SICC-A series adopt modular design with three unit modules including SICC-60A, SICC-90A and SICC-120A, each of them can be used as a unit independently or combine together to meet system load based on actual operations. SICC-A series modular device is capable of automatically switching on or off unit modules to save energy as system load varies. Shini is able to fare 15 unit modules combination to reach the maximum cooling capacity of 1800kW. Users can follow steps below to combine these unit modules:

Pipeline Connection of Chilled Water

In modularized configuration for chilled water circuit, there are two methods of connection: reversed return and direct return. In reversed return connection chilled water flow distance through every unit module is the same while in direct return the flow distance is not equal. Flow distance in reversed return has the same resistance and water flow while flow distance in direct return has the different resistance and water flow. Generally, chilled water pipeline connection adopts reversed return type.

Chilled water inlet and outlet in SICC-A unit module adopt 5 inch flange as joint face. Use 5 inch rubber connecting flange can complete the combination of two unit modules of pipeline. Both flange and rubber connecting flange are national standard parts and they are conveniently to purchase.

Control Line Connection of Host/Sub Modules

Complete control line connection following chilled water pipeline connection. No.1 terminal in host PCB connects display control panel. No.2 terminal connects No.1 terminal of sub 1# module and No.2 terminal of sub 1#module connects No.1 terminal of sub 2# module. Complete connection in sequence as number of unit module increases. (Note: four lines in No.1 terminal and three in No.2. When connecting No.1 and No.2, the black line in No.1 terminal is free of connection)

Control Setting

Complete control setting following control line connection. Firstly is the setting of each unit module address, which can be finished by controlling DIP switches on PCB. Address range is from 1 to 15. On the using of module combination, display control panel connects 1# module to centrally control all unit modules in the system. Refer picture below for DIP switch setting (Black area indicates switching DIP to "ON", as shown in number "4")

DIP Switch Setting

Next comes the setting on the control panel. Select and press buttons in sequence: Function selection—System param. Setting—Password (input)—System configuration:

• Network module number: setting the number of modules composing system;
• Water pump: equipped with the built-in pump or external pump. ON means built-in pump and OFF means external pump.
• Heat pump: units include single cool and heat pump models. ON means it is heat pump and OFF single cool.
• Auxiliary heat 1: indicate whether 1# module is equipped with auxiliary heat. ON means connecting one and OFF no connecting.
• Auxiliary heat 2: indicate whether 2# module is equipped with auxiliary heat. ON means connecting one and OFF no connecting.
• Module number for modularized configuration: module selected to be ONLINE or not (set the module to be ONLINE running).
• ONLINE setting: set the module to be ONLINE running. ON means module online and it is activated in the unit while OFF means module offline and it is idle in the unit (module is not applied to the unit for any fault, set it offline). 1# module can not be OFFLINE.