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V5 X VRF Series
Midea V5 X VRF Series User Manual
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Commercial
Air Conditioner Division
Midea Group
Add.:
Midea Headquarter
s Building
, 6 Midea Avenue, Shunde, F
oshan, Gu
angdong, China
Post
al code:
528311
T
el:
+86-
757
-
26338346
;
Fax:
+86-
757
-
22390205
cac.midea.com
/
global.midea.com
Note: Product specifications change
from time
to time
as
product improvement
s
and
developments are
released and
may vary from
those
in
this
document.
168
Table of Contents
Default Chapter
2
Table of Contents
2
General Information
3
Part 1 General Information
4
Features
4
Outdoor Units
9
Standard Combination
10
Space Saving Combination
11
Energy Efficiency Combination
12
Indoor Units Lineup
13
Nomenclature
14
Part 2 Selection Procedure
15
Indoor Unit Selection
16
Outdoor Unit Selection
16
Indoor Unit Combination Total Capacity Index Table
17
Indoor Unit Capacity Index
18
Outdoor Unit Capacity Tables
18
Cooling Capacity Modification
18
Unit Selection (Based on Cooling Load)
19
Heating Capacity Modification
19
Part 3 Specifications & Performances
21
Specifications
22
Dimensions
26
Service Space
28
Piping Diagrams
29
Wiring Diagram
31
Field Wiring
33
Signal Wire between Outdoor Unit and Indoor Unit
33
Electric Characteristics
34
Cooling Capacity Tables
35
Heating Capacity Tables
62
Operation Limits
80
Sound Levels
81
Accessories
82
Functional Parts and Safety Devices
83
Part 4 Installation
84
Hoisting Outdoor Unit
85
Installation of Indoor Unit
85
Installation of Outdoor Unit
85
Foundation for Installation
86
Select Installation Position
86
Installation Space
87
Master and Slave Unit Setting
87
Air Ventilation Assembly Installation
89
Snow-Proofing
89
Installation of 14, 16, 18, 20, 22HP
91
Outdoor Fan Performance
92
Refrigerant Piping Selection
93
Branch Joint Dimension
98
Outdoor Branch Joint Dimension
99
Refrigerant Pipe Installation
100
Support for Refrigerant Pipe
100
Pipe Cutting
102
Rectify Opening of Copper Pipe
102
Storage and Maintenance of Copper Pipe
102
Bell-Mouthed Opening
103
Brazing
104
Pipe Bending
104
Selecting Refrigerant Pipe
104
Cautions for Welding Pipe Fittings
105
Making Nitrogen-Charging Pipe Joint
105
Nitrogen Filling to Protect Copper Pipe During Brazing
105
Standard Brazing Operation
106
Flushing Copper Pipe
107
Pipe Cleaning
107
Branch Pipe Installation
108
Drainage Pipe Engineering
109
Water Storing Elbow of Drainage Pipe
111
Concentrated Drainage Pipe
112
Lifting of Drainage Pipe (for the Unit with Lift Pump)
112
Duct Engineering
113
Duct Selection
113
Overflow Water Test and Water Pass Test
113
Duct Connection
114
Heat Insulation Engineering
115
Installation and Main Points of Insulation Construction
115
Insulation of Refrigerant Piping
115
Selection of Insulation Materials for Refrigerant Piping
115
Duct Insulation
116
Insulation of Condensation Pipe
116
Thickness of Insulation Layer
116
Caution for Brazing
117
Gas Tightness Test
117
Remove Dirt or Water in the Piping
117
Pressure Observation
118
Selection of Vacuum Pump
119
Vacuum Drying
119
Vacuum Drying for Piping
119
Additional Refrigerant Charge
120
Calculating the Refrigerant Recharge Volume
120
Steps for Recharging Refrigerant
120
Electrical Wiring Installation
121
Wiring Terminal Instruction
121
Outdoor Unit Power Supply Wiring
122
Control System Installation
123
Indoor Unit Power Supply Wiring
123
Signal Wire of Centralized Control
124
Running Test
125
Inspection and Confirmation before Commissioning
125
Preparation before Debugging
125
Commissioning of Trial Run
125
Refrigerant Leakage Caution
126
Countermeasures for High Refrigerant Thickness
127
System Check (SW2)
130
Part 5 Troubleshooting
131
Outdoor Main Control Board Instructions
132
Main PCB Parts Instructions
134
Query Content Instructions
135
Dial Switch Setting
136
LED on Main Control Board Instructions
137
Error Code Table
138
E0: Communication Error between Outdoor Units
139
E1: Phase Sequence Error
140
E2: Communication Error between Indoor Units and the Master Unit
141
E4: Malfunction of Outdoor Ambient Temperature Sensor (T4)
142
E7: Malfunction of Discharge Temperature Sensor
142
E5: Malfunction of Power Supply Voltage
143
E8: Faulty Outdoor Unit Address
144
E9: Driver Model Is Mismatched
144
Xh0: Communication Malfunction
145
H1: Communication Malfunction
145
H2: Outdoor Unit Quantity Is Decreased
146
H3: Outdoor Unit Quantity Is Increased
146
H7: Faulty Indoor Unit Quantity
147
H8: Malfunction of Pressure Sensor for Discharge Pipe
148
Yhd: Slave Unit Malfunction (y Refers to Corresponding Slave Unit)
149
P0: Temperature Protection of Inverter Compressor
149
P4: Discharge Temperature Protection
149
H6: P4 Protection Appears Three Times in 100 Minutes
149
P1: High Pressure Protection
150
P2: Low Pressure Protection
151
H5: P2 Protection Appears Three Times in 60 Minutes
151
Xp3: over Current Protection of Compressor
152
P5: Condenser Temperature Protection
153
Xh4: Inverter Module Protection
154
Guide for Compressor Replacement
159
If the Oil Has Been Spoiled
160
P9: Fan Module Protection
162
H9: P9 Protection Appears Three Times in 60 Minutes
162
PL: Temperature Protection of Main Inverter Module
164
C7: PL Protection Appears Three Times in 100 Minutes
164
PP: Insufficient Overheat Protection of Compressor Discharge Temp.
165
F0: PP Protection Appears Three Times in 150 Minutes
165
Resistance of Ambient Temperature and Pipe Temperature Sensor
166
Resistance Characteristics of Compressor Discharge Temperature Sensor
167
Commissioning and Operating Parameters of Refrigerant System
168
4
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Midea V5 X VRF Series Specifications
General
Brand
Midea
Model
V5 X VRF Series
Category
Air Conditioner
Language
English
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