2
TABLE OF CONTENTS
PAGE
PAGE
1.
Safety Precautions ............................................. 3
2.
Precaution for Using R32 Refrigerant .............. 5
3.
Specifications ................................................... 10
4.
Features ............................................................. 14
5.
Location of Controls and Components .......... 15
5.1
Indoor Unit .................................................. 15
5.2
Outdoor Unit ............................................... 15
5.3
Remote Control .......................................... 15
6.
Dimensions ....................................................... 16
6.1
Indoor Unit & Remote Control .................... 16
6.2
Outdoor Unit ............................................... 17
7.
Refrigeration Cycle Diagram ........................... 18
8.
Block Diagram .................................................. 19
9.
Wiring Connection Diagram ............................ 20
9.1
Indoor Unit .................................................. 20
9.2
Outdoor Unit ............................................... 21
10.
Electronic Circuit Diagram .............................. 22
10.1
Indoor Unit .................................................. 22
10.2
Outdoor Unit ............................................... 23
11.
Printed Circuit Board ....................................... 24
11.1
Indoor Unit .................................................. 24
11.2
Outdoor Unit ............................................... 26
12.
Installation Instruction ..................................... 27
12.1
Select the Best Location ............................. 27
12.2
Indoor Unit .................................................. 28
12.3
Outdoor Unit ............................................... 32
13.
Installation and Servicing Air Conditioner
using R32 .......................................................... 38
13.1
About R32 Refrigerant ................................ 38
13.2
Characteristics of R32 Refrigerant ............. 38
13.3
Refrigerant piping installation • Tools used
in services ................................................... 40
13.4
New installation, Relocation,
Repairing of Refrigerant Cycle System
The Procedures .......................................... 44
13.5
Piping installation of R32 ............................ 45
13.6
Installation, Relocation, and Service .......... 46
13.7
Repairing of refrigerant cycle /
Brazing point ............................................... 50
13.8
<Reference> Analysis method for no error
code, no cooling / no warming .................... 56
14.
Operation Control ............................................. 58
14.1
Basic Function ............................................ 58
14.2
Indoor Fan Motor Operation ....................... 59
14.3
Outdoor Fan Motor Operation .................... 60
14.4
Airflow Direction .......................................... 61
14.5
Quiet Operation (Cooling Mode/Cooling
Area of Dry Mode) ...................................... 62
14.6
Quiet Operation (Heating) .......................... 63
14.7
Powerful Mode Operation ........................... 63
14.8
Timer Control ..............................................63
14.9
Random Auto Restart Control ....................64
14.10
Indication Panel ..........................................64
14.11
+8/15°C Heat Operation .............................65
14.12
Wireless LAN Control .................................66
15.
Protection Control ............................................69
15.1
Protection Control for All Operations ..........69
15.2
Protection Control for Cooling & Soft Dry
Operation ....................................................71
15.3
Protection Control for Heating Operation ...72
16.
Servicing Mode .................................................73
16.1
Auto OFF/ON Button ..................................73
16.2
Heat Only Operation ...................................74
16.3
Remote Control Button ...............................75
17.
Troubleshooting Guide ....................................84
17.1
Refrigeration Cycle System ........................84
17.2
Relationship Between the Condition of the
Air Conditioner and Pressure and Electric
Current ........................................................85
17.3
Breakdown Self Diagnosis Function ...........86
17.4
Error Codes Table ......................................87
17.5
Self-diagnosis Method ................................89
18.
Disassembly and Assembly Instructions ... 118
18.1
Indoor Electronic Controllers,
Cross Flow Fan and Indoor Fan Motor
Removal Procedures ............................... 118
18.2
Outdoor Electronic Controller Removal
Procedure ................................................ 122
19.
Technical Data ............................................... 123
19.1
Cool Mode Performance Data ................. 123
19.2
Heat Mode Performance Data ................. 124
20.
Service Data ................................................... 125
20.1
Cool Mode Outdoor Air Temperature
Characteristic ........................................... 125
20.2
Heat Mode Outdoor Air Temperature
Characteristic ........................................... 127
20.3
Piping Length Correction Factor .............. 129
21.
Exploded View and Replacement Parts
List .................................................................. 130
21.1
Indoor Unit ............................................... 130
21.2
Outdoor Unit ............................................ 133
Specifications, designs and contents in this Service Manual are subject to change without notice.
