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Gree GMV5E Series User Manual
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GREE
GMV5E DC
INVERTER
VRF
UNITS SER
VICE
MANUAL
258
②
Clear oil return pipes
③
Clear liquid pipe filters
For
other
pipeline
parts,
clear
them
based
on
a
ctual
situation.
If
you
do
not
replace
th
e
parts
immediately
,
make
sure
to
block
the
pipe
s
with
tapes,
preventing
air
moistures
and
impurities
from
contaminating them.
261
263
Table of Contents
Table of Contents
2
Preface
5
Chapter 1 Introduction to Basic Features of Units
5
Basic Operating Principle
5
Model List
6
Internal Piping Design of the Units
7
Basic Parameters of Unit
11
Electrical Parameters
15
Optional Accessories
19
Basic Requirement for Pipe Connection
20
Precautions on Refrigerant Leakage
23
Unit Operating Temperature
23
Chapter 2 Installation
24
Engineering Installation Preparation
24
Installation Safety
24
Importance of Installation Engineering
24
Cooperation between Different Professions
26
Onsite Review of Design Drawing
28
Construction Organization Process
29
Material Selection
29
Requirement for Selecting Construction Materials
29
Requirement for Selecting Major Materials
30
Installation Space Requirement
31
Place Selection for Installing ODU
31
ODU Dimensions and Installation Hole Size
32
Installation Space Requirement for ODU
33
Requirements on Foundation Installation
40
ODU Foundation
40
ODU Fixing
40
Vibration Reduction for ODU
41
Precautions When Installing the Connection Pipe
41
Piping Connection
42
Schematic Diagram of Piping Connection
42
Schematic Diagram of Piping Sequence
42
Allowable Pipe Length and Drop Height Among Indoor and Outdoor Units
43
Connection Pipe Among Outdoor Modules
45
Fitting Pipe between Outdoor Unit and the First Manifold
47
Pipe Installation and Insulation
53
Pipe Installation for the Cooling System
53
Pipe Installation for the Condensate Water System
62
Insulation System
66
Electric and Controller Installation
67
Precautions
67
Installation of the Power Cable
68
Installation of the Communication System
70
Vacuumization and Desiccation for the Refrigerant System
72
Air-Tightness Test
72
Vacuumization and Desiccation for the System
73
Refrigerant Perfusion
74
Calculation Method for Perfusing Refrigerant
74
Method for Perfusing Refrigerant
76
Chapter 3 Commissioning Operation
78
Security Requirements
78
Precautions for Construction
78
Precautions for the Use of Refrigerants
78
Introduction to Unit Functions
78
System Function DIP Switch Settings
78
System Function Button Operations
84
Commissioning Process
99
Necessity of VRF Engineering Commissioning
100
Required Files and Tools for Engineering Commissioning
100
Engineering Commissioning Procedures
100
References for Proper Unit Operation Parameters
123
Chapter 4 Maintenance
126
Part 1 Failure Code Table
126
System Failure Code Table
126
Part 2 Exception and Troubleshooting
130
Exception Analyzing and Troubleshooting
130
Form Analyzing
130
Gas-Mixing Protection of 4-Way Valve
138
Key Parts Maintenance
240
Cautions on Controller AP1 Replacement
240
Compressor Replacement and Cautions
245
Cautions on Compressor Drive Replacement
270
Assembling and Disassembling Key Parts of Odus
273
Exploded Views and Spaer Part List
286
Common Parameter Lists
298
R410A Refrigerant Pressure / Saturation Temperature List
298
Resistance / Temperature Lists of Temperature Sensors
299
Voltage / Pressure Lists of Pressure Sensors
305
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Gree GMV5E Series Specifications
General
Brand
Gree
Model
GMV5E Series
Category
Air Conditioner
Language
English
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