GREE Photovoltaic Direct-driven Inverter Multi VRF Units
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2.2 Required Files and Tools for Engineering Commissioning
2.2.1 Required Tools for Engineering Commissioning of GREE VRF
System high and low pressure gauges for corresponding refrigerants
The
Photovoltaic Direct-driven Inverter Multi VRF
provides two commissioning methods. One is to
perform commissioning by pressing buttons on the main board of ODU. The other is to perform
commissioning on a PC through professional software. Parameters of the ODU and IDU can be
simultaneously displayed with the second method. (For details about these methods, refer to respective
instructions.)
2.2.2 Commissioning Files
The following commissioning files are required to record installation and commissioning of units:
pre-commissioning scheme determination meeting minutes, commissioning personnel record tables,
commissioning system appearance check record tables, commissioning data record tables, and
commissioning reports. See attached tables for file formats.
2.3 Engineering Commissioning Procedures
2.3.1 Pre-commissioning Preparations
2.3.1.1 Overall Commissioning Plan
Before commissioning, the person-in-charge should learn about the overall engineering progress
plan, overall workload of engineering commissioning, possible influence factors in achieving the
commissioning progress, and required labors and materials.
2.3.1.2 Composition of Commissioning Members
Commissioning members comprise aftersales commissioning personnel and installation personnel.
All commissioning participants must take part in professional training courses before unit
commissioning. All participants can be grouped as required and each group should include at least
professional commissioning personnel and assistants.
2.3.1.3 Preparations of Commissioning Tools and Instruments
(1) Make sure that the following tools or instruments are prepared before commissioning.
(2) Make sure that the commissioning software is correct before commissioning.
(3) The professional aftersales commissioning software provided by GREE should be used for
commissioning of GREE VRF system.
(4) Make sure that all required files and parameter records are prepared.