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RXYQ8T7Y1B
Daikin RXYQ8T7Y1B Installation And Operation Manual
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V
R
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ystem Air Conditioner
INST
ALLATION AND
OPERATION MANUAL
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YYQ8T7Y1B
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YYQ10T7Y1B
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YYQ12T7Y1B
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YYQ14T7Y1B
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YYQ16T7Y1B
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YYQ18T7Y1B
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YYQ20T7Y1B
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YMQ8T7Y1B
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YMQ10T7Y1B
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YMQ12T7Y1B
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YMQ14T7Y1B
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YMQ16T7Y1B
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YMQ18T7Y1B
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YMQ20T7Y1B
RXYQ8T7Y1B
RXYQ10T7Y1B
RXYQ12T7Y1B
RXYQ14T7Y1B
RXYQ16T7Y1B
RXYQ18T7Y1B
RXYQ20T7Y1B
System Air Conditioner
2
Table of Contents
Installation Manual
6
Default Chapter
6
Table of Contents
6
2 General Safety Precautions
7
Combination and Options
8
Model Identification
9
Scope of the Manual
9
Indoor Capacity Range
9
Accessories Supplied with this Unit
9
5 Overview of Unit
11
Main Components in the Unit
11
Opening the Unit
11
6 Selecting an Installation Location
12
Selecting a Location in Cold Climates
13
Weather Related Precautions
13
7 Dimensions and Service Space
14
Dimensions of Outdoor Unit
14
The Unit
15
Pipe Length
16
Selection of Refrigerant Branch Kits
18
System Piping (Length) Limitations
18
Multi System Piping Installation
21
10 Precautions on Refrigerant Piping
22
Connecting the Refrigerant Piping
22
Caution for Brazing
22
Guidelines for Handling Stop Valve
24
Leak Test and Vacuum Drying
25
11 Pipe Insulation
26
12 Electrical Wiring Work
27
Precautions on Electrical Wiring Work
27
System Overview of Field Wiring
29
13 Making Field Settings
34
14 Charging Refrigerant
36
Calculating the Additional Refrigerant Charge
37
Method for Adding Refrigerant
38
15 Start-Up and Configuration
42
Monitoring Function and Field Settings
43
Leak Detection Function
47
Test Operation
49
Malfunction Code List
50
16 Operation of the Unit
52
17 Maintenance and Service
53
18 Caution for Refrigerant Leaks
53
Maintenance Introduction
53
Service Mode Operation
53
Service Precautions
53
19 Disposal Requirements
54
Maximum Concentration Level
54
Procedure for Checking Maximum Concentration
54
20 Unit Specifications
55
General Technical Specifications
55
Electrical Specifications
56
Operation Manual 1. Definitions
57
Operation Manual
57
1 Definitions
57
Meaning of Warnings and Symbols
57
Meaning of Used Terms
57
2 Introduction
58
General Information
58
System Layout
60
3 Before Operation
60
4 User Interface
60
5 Operation Range
60
6 Operation Procedure
60
Cooling, Heating, Fan Only, and Automatic Operation
60
Program Dry Operation
61
Adjusting the Air Flow Direction
62
Setting the Master User Interface
62
Precautions for Group Control System or Two User Interface Control System
63
7 Energy Saving and Optimum Operation
63
8 Maintenance
64
Maintenance after a Long Stop Period (E.g., at the Beginning of the Season)
64
Maintenance before a Long Stop Period (E.g., at the End of the Season)
64
9 Symptoms that Are Not Air Conditioner Troubles
64
10 Troubleshooting
65
11 After-Sales Service and Warranty
66
Warranty Period
66
After-Sales Service
66
Shortening of "Maintenance Cycle" and "Replacement Cycle" Needs to be Considered in Following Situations
66
Malfunction Codes
67
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Installer And User Reference Guide
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Daikin RXYQ8T7Y1B Specifications
General
Series
VRV IV-S
Type
Heat Pump
Cooling Capacity (kW)
22.4
Heating Capacity (kW)
25.0
Refrigerant
R410A
Power Supply
380-415V / 50Hz
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