72
DC Inverter Multi
VRF Service Manual
CONTROL
6.4.3 Instruction to Installation Procedure of System
Step 1: Integral Design of the Whole System�
In consideration of features of building and installation of the unit, the building is divided into a lot of monitoring
regions and then conrm required systems, their quantity and installation locations. As for this example:
A. Division of monitoring regions: According to needs of the users, the whole oor is divided into 3 monitoring
regions, south area (ofce 1-6), north area (assembly room1-2 and ofce 7-8) and monitor room.
B. Conrmation of quantity of systems
Name Qty Installation Location Notes
Communication modules 3 Centralized control cabinet
The quantity required for the pinboards is the same as
communication modules. If no pinboard, only one module
is needed. So, there should be 3 modules in total.
Centralized control cabinet 1 Monitor room Installed indoors according to user’s conditions.
Centralized controller 1 Monitor room Installed indoors
Step 2: Wiring and Installation
A. Centralized controller as extension function of GMV unit can be installed and debugged after communication
connection between outdoor unit and indoor unit and normal operation of the unit.
B. Make of centralized control cabinet
If a lot of communication modules are used, centralized control cabinet is recommended. Heavy current wires and
communication lines should be wired separately. The distance between them should keep above 15cm.The following gure
is an example of centralized control cabinet, but its design should be according to quantity of communication modules.
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