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VRV 5 REYA8A7Y1B
Daikin VRV 5 REYA8A7Y1B User Manual
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Installer and user reference guide
VRV 5 heat recovery
REYA8A7Y1B
REYA10A7Y1B
REYA12A7Y1B
REYA14A7Y1B
REYA16A7Y1B
REYA18A7Y1B
REYA20A7Y1B
REMA5A7Y1B
2
Table of Contents
Table of Contents
2
About this Document
6
Meaning of Warnings and Symbols
6
General Safety Precautions
8
For the Installer
8
General
8
Installation Site
9
Refrigerant - in Case of R410A or R32
9
Electrical
11
Specific Installer Safety Instructions
13
Instructions for Equipment Using R32 Refrigerant
17
For the User
19
User Safety Instructions
20
General
20
Instructions for Safe Operation
21
About the System
25
System Layout
25
User Interface
27
Operation
28
Before Operation
28
Operation Range
28
Operating the System
29
About Operating the System
29
About Cooling, Heating, Fan Only, and Automatic Operation
29
About the Heating Operation
29
To Operate the System
30
Using the Dry Program
30
About the Dry Program
30
To Use the Dry Program
31
Adjusting the Air Flow Direction
31
About the Air Flow Flap
31
Setting the Master User Interface
32
About Setting the Master User Interface
32
To Designate the Master User Interface
32
About Control Systems
33
Energy Saving and Optimum Operation
34
Available Main Operation Methods
35
Available Comfort Settings
35
Maintenance and Service
36
Precautions for Maintenance and Service
36
Maintenance after a Long Stop Period
36
Maintenance before a Long Stop Period
36
About the Refrigerant
37
After-Sales Service and Warranty
37
Warranty Period
37
Recommended Maintenance and Inspection
37
Recommended Maintenance and Inspection Cycles
38
Shortened Maintenance and Replacement Cycles
39
Troubleshooting
40
Error Codes: Overview
41
Symptoms that Are NOT System Malfunctions
44
Symptom: the System Does Not Operate
44
Symptom: Fan Operation Is Possible, but Cooling and Heating Do Not Work
44
Symptom: the Fan Speed Does Not Correspond to the Setting
44
Symptom: the Fan Direction Does Not Correspond to the Setting
44
Symptom: White Mist Comes out of a Unit (Indoor Unit)
44
Symptom: White Mist Comes out of a Unit (Indoor Unit, Outdoor Unit)
45
Symptom: the User Interface Reads "U4" or "U5" and Stops, but then Restarts after a few Minutes
45
Symptom: Noise of Air Conditioners (Indoor Unit)
45
Symptom: Noise of Air Conditioners (Indoor Unit, Outdoor Unit)
45
Symptom: Noise of Air Conditioners (Outdoor Unit)
45
Symptom: Dust Comes out of the Unit
45
Symptom: the Units Can Give off Odours
45
Symptom: the Outdoor Unit Fan Does Not Spin
46
Symptom: the Display Shows "88
46
Symptom: the Compressor in the Outdoor Unit Does Not Stop after a Short Heating Operation
46
Symptom: the Inside of an Outdoor Unit Is Warm Even When the Unit Has Stopped
46
Symptom: Hot Air Can be Felt When the Indoor Unit Is Stopped
46
Relocation
47
Disposal
48
Technical Data
49
Eco Design Requirements
49
For the Installer
50
About the Box
51
To Unpack the Outdoor Unit
52
To Remove the Accessories from the Outdoor Unit
52
Accessory Pipes: Diameters
53
To Remove the Transportation Stay (Only for 5~12 HP)
53
About the Units and Options
55
Identification Label: Outdoor Unit
55
About the Outdoor Unit
55
System Layout
56
Combining Units and Options
57
About Combining Units and Options
57
Possible Combinations of Indoor Units
57
Possible Combinations of Outdoor Units
57
Possible Options for the Outdoor Unit
58
Special Requirements for R32 Units
60
Installation Space Requirements
60
System Layout Requirements
60
About the Charge Limit
64
To Determine the Charge Limit
64
Unit Installation
72
Preparing the Installation Site
72
Installation Site Requirements of the Outdoor Unit
72
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates
75
Opening the Unit
76
About Opening the Units
76
To Open the Outdoor Unit
77
To Open the Electrical Component Box of the Outdoor Unit
77
Mounting the Outdoor Unit
78
To Provide the Installation Structure
78
To Install the Outdoor Unit
79
Piping Installation
80
Preparing Refrigerant Piping
80
Refrigerant Piping Requirements
80
Refrigerant Piping Material
80
Refrigerant Piping Insulation
81
To Select the Piping Size
81
To Select Refrigerant Branch Kits
83
Installation Limitations
84
About the Piping Length
85
Single Outdoor Units and Standard Multi-Outdoor-Unit Combinations >20 HP
87
Standard Multi-Outdoor-Unit Combinations ≤20 HP and Free Multi-Outdoor-Unit Combinations
88
Multiple Outdoor Units: Possible Layouts
89
Connecting the Refrigerant Piping
91
About Connecting the Refrigerant Piping
91
Precautions When Connecting the Refrigerant Piping
91
Multiple Outdoor Units: Knockout Holes
92
To Route the Refrigerant Piping
92
To Connect the Refrigerant Piping to the Outdoor Unit
93
To Connect the Multi Connection Piping Kit
94
To Connect the Refrigerant Branching Kit
94
To Protect against Contamination
95
To Braze the Pipe End
96
Using the Stop Valve and Service Port
96
To Remove the Pinched Pipes
98
Checking the Refrigerant Piping
99
About Checking the Refrigerant Piping
99
Checking Refrigerant Piping: General Guidelines
100
Checking Refrigerant Piping: Setup
101
To Perform a Leak Test
101
To Perform Vacuum Drying
102
To Insulate the Refrigerant Piping
103
Charging Refrigerant
105
Precautions When Charging Refrigerant
105
About Charging Refrigerant
106
About the Refrigerant
107
To Determine the Additional Refrigerant Amount
107
To Charge Refrigerant: Flow Chart
110
To Charge Refrigerant
110
Error Codes When Charging Refrigerant
113
Checks after Charging Refrigerant
113
To Fix the Fluorinated Greenhouse Gases Label
113
To Check for Refrigerant Leaks after Charging
113
Electrical Installation
115
About Connecting the Electrical Wiring
115
Precautions When Connecting the Electrical Wiring
115
About the Electrical Wiring
117
Guidelines When Knocking out Knockout Holes
118
About Electrical Compliance
119
Safety Device Requirements
120
To Route and Fix the Transmission Wiring
121
To Connect the Transmission Wiring
123
To Finish the Transmission Wiring
123
To Route and Fix the Power Supply
124
To Connect the Power Supply
124
To Connect the External Outputs
126
To Check the Insulation Resistance of the Compressor
127
Configuration
128
Making Field Settings
128
About Making Field Settings
128
Field Setting Components
129
To Access the Field Setting Components
129
To Access Mode 1 or 2
130
To Use Mode 1
131
To Use Mode 2
132
Mode 1: Monitoring Settings
133
Mode 2: Field Settings
135
Energy Saving and Optimum Operation
142
Available Main Operation Methods
142
Available Comfort Settings
143
Example: Automatic Mode During Cooling
145
Example: Automatic Mode During Heating
146
Using the Leak Detection Function
147
About Automatic Leak Detection
147
To Manually Perform a Leak Detection
148
Commissioning
149
Overview: Commissioning
149
Precautions When Commissioning
149
Checklist before Commissioning
150
Checklist During Commissioning
151
About the Test Run
152
To Perform a Test Run
152
Correcting after Abnormal Completion of the Test Run
153
To Perform a Bs/Indoor Unit Connection Check
153
Operating the Unit
155
Hand-Over to the User
156
Maintenance and Service
157
Maintenance Safety Precautions
157
To Prevent Electrical Hazards
157
Checklist for Yearly Maintenance of the Outdoor Unit
158
About Service Mode Operation
158
To Use Vacuum Mode
158
To Recover Refrigerant
159
Troubleshooting
160
Overview: Troubleshooting
160
Precautions When Troubleshooting
160
Solving Problems Based on Error Codes
160
Error Codes: Overview
161
Refrigerant Leak Detection System
167
Disposal
170
Technical Data
171
Service Space: Outdoor Unit
171
Piping Diagram: Outdoor Unit
173
Wiring Diagram: Outdoor Unit
176
Glossary
179
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Daikin VRV 5 REYA8A7Y1B Specifications
General
Model
VRV 5 REYA8A7Y1B
Category
Heating System
Type
Heat Pump
Refrigerant
R32
Power Supply
400V, 50Hz, 3-Phase
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