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Daikin
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RXQ28AMYM
Daikin RXQ28AMYM User Manual
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Table of Contents
Dimensions
1
Contents
5
Safety Precautions
6
Special Notice of Product
7
Design Pressure
7
General Information
8
Combination
8
Accessories
9
Opening the Unit
9
Main Components in the Unit
10
Piping Diagram
10
Selecting an Installation Location
12
Main Components in the Electrical Component Box
12
Dimensions and Service Space
13
Weather Related Precautions
13
Inspecting and Handling the Unit
14
Installing the Unit
14
Refrigerant Pipe Size and Allowable Pipe Length
15
Selection of Piping Material
15
Piping between Refrigerant Branch Kits
15
Piping between Refrigerant Branch Kit and BP Unit
15
Selection of Refrigerant Branch Kits
16
Piping between BP Unit and RA Indoor Unit
16
System Piping (Length) Limitations
17
Piping Length Restrictions
17
System Only Containing VRV Indoor Units
17
Multi System Piping Installation
19
Precautions on Refrigerant Piping
20
Caution for Brazing
20
Connecting the Refrigerant Piping
21
Connecting Refrigerant Piping to the Outdoor Unit
22
Branching the Refrigerant Piping
22
Guidelines for Handling Stop Valve
23
Leak Test and Vacuum Drying
24
Installation of Refrigerant Piping, Leak Test, Vacuuming
24
Pipe Insulation
25
Electrical Wiring Work
25
System Overview of Field Wiring
26
Opening and Closing the Electrical Component Box
26
Requirements
27
Transmission Wiring Routing
27
Power Supply Wiring Routing
29
Precautions When Knocking out Knockout Holes
30
Connection of Transmission Wiring to the System
30
Connection of Wiring to Terminals
31
Making Field Settings
32
Accessing the Push Buttons on the Logic Board
32
Operating the Push Buttons and DIP Switches on the Logic Board
32
Operating the DIP Switches
33
Charging Refrigerant
34
Calculating the Additional Refrigerant Charge
34
Method for Adding Refrigerant
35
Monitoring Function and Field Settings
37
Energy Saving and Optimum Operation
40
Four Main Operation Methods
40
Several Comfort Settings in VRT Control
40
Test Run
41
Correcting after Abnormal Completion of the Test Operation
41
Malfunction Code List
42
Operation of the Unit
45
Caution for Refrigerant Leaks
45
Maximum Concentration Level
45
Procedure for Checking Maximum Concentration
45
Layout Example
46
Cooling Only
46
Equivalent Piping Length of Joints and Header
47
REFNET Joints
48
REFNET Headers
49
REFNET Joint (Branch Kit)
50
REFNET Header (Branch Kit)
54
Reducer
58
Outdoor Unit Multi Connection Piping Kit
59
Service Precautions
65
Additional Refrigerant Charging Operation
66
When Lifting the Unit
67
When Carrying the Unit by Forklift
67
Electrical Work
67
Front Panel Removal Method
68
Location of the el Compo Box and the Service Part
68
Field Setting
70
Check Operation Method
73
Service Mode Operation Method
74
Checking Maximum Concentration
80
4
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Daikin RXQ28AMYM Specifications
General
Type
Inverter
Indoor Unit Noise Level
49 dB(A)
Outdoor Unit Noise Level
60 dB(A)
Power Supply
230V/1Ph/50Hz
Refrigerant
R32
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