2
Specifications, designs and contents in this Service Manual are subject to change without notice.
TABLE OF CONTENTS
PAGE
PAGE
1.
Safety Precautions ............................................. 3
2.
Precaution for Using R32 Refrigerant .............. 6
3.
Specifications ................................................... 11
4.
Features ............................................................. 17
5.
Location of Controls and Components .......... 18
5.1
Indoor Unit .................................................. 18
5.2
Outdoor Unit ............................................... 18
5.3
Remote Control .......................................... 18
6.
Dimensions ....................................................... 19
6.1
Indoor Unit & Remote Control .................... 19
6.2
Outdoor Unit ............................................... 20
7.
Refrigeration Cycle Diagram ........................... 22
7.1
CS-BZ25XKE CU-BZ25XKE
CS-BZ35XKE CU-BZ35XKE
CS-BZ50XKE CU-BZ50XKE ..................... 22
7.2
CS-BZ60XKE CU-BZ60XKE ..................... 23
8.
Block Diagram .................................................. 24
8.1
CS-BZ25XKE CU-BZ25XKE
CS-BZ35XKE CU-BZ35XKE ..................... 24
8.2
CS-BZ50XKE CU-BZ50XKE
CS-BZ60XKE CU-BZ60XKE ..................... 25
9.
Wiring Connection Diagram ............................ 26
9.1
Indoor Unit .................................................. 26
9.2
Outdoor Unit ............................................... 27
10.
Electronic Circuit Diagram .............................. 29
10.1
Indoor Unit .................................................. 29
10.2
Outdoor Unit ............................................... 30
11.
Printed Circuit Board ....................................... 32
11.1
Indoor Unit .................................................. 32
11.2
Outdoor Unit ............................................... 34
12.
Installation Instruction ..................................... 36
12.1
Select the Best Location ............................. 36
12.2
Indoor Unit .................................................. 37
12.3
Outdoor Unit ............................................... 42
13.
Installation and Servicing Air Conditioner
using R32 .......................................................... 48
13.1
About R32 Refrigerant ................................ 48
13.2
Characteristics of R32 Refrigerant ............. 48
13.3
Refrigerant piping installation • Tools used
in services ................................................... 50
13.4
New installation, Relocation,
Repairing of Refrigerant Cycle System
The Procedures .......................................... 54
13.5
Piping installation of R32 ............................ 55
13.6
Installation, Relocation, and Service .......... 56
13.7
Repairing of refrigerant cycle /
Brazing point ............................................... 60
13.8
<Reference> Analysis method for no error
code, no cooling / no warming .................... 66
14.
Operation Control .............................................68
14.1
Basic Function ............................................68
14.2
Indoor Fan Motor Operation .......................69
14.3
Outdoor Fan Motor Operation ....................70
14.4
Airflow Direction ..........................................70
14.5
Timer Control ..............................................72
14.6
Sleep Mode Operation ...............................73
14.7
Random Auto Restart Control ....................74
14.8
Indication Panel ..........................................74
14.9
Quiet Operation (Cooling Mode/Cooling
Area of Dry Mode) ......................................74
14.10
Quiet Operation (Heating) ..........................75
14.11
Powerful Mode Operation ...........................75
15.
Protection Control ............................................76
15.1
Protection Control for All Operations ..........76
15.2
Protection Control for Cooling & Soft Dry
Operation ....................................................78
15.3
Protection Control for Heating Operation ...79
16.
Servicing Mode .................................................81
16.1
Auto OFF/ON Button ..................................81
16.2
Heat Only Operation ...................................82
16.3
Remote Control Button ...............................83
17.
Troubleshooting Guide ....................................91
17.1
Refrigeration Cycle System ........................91
17.2
Relationship Between the Condition of the
Air Conditioner and Pressure and Electric
Current ........................................................92
17.3
Breakdown Self Diagnosis Function ...........93
17.4
Error Codes Table ......................................94
17.5
Self-diagnosis Method ................................96
18.
Disassembly and Assembly Instructions ... 124
18.1
Indoor Electronic Controllers,
Cross Flow Fan and Indoor Fan Motor
Removal Procedures ............................... 124
18.2
Outdoor Electronic Controller Removal
Procedure ................................................ 129
19.
Technical Data ............................................... 132
19.1
Cool Mode Performance Data ................. 132
19.2
Heat Mode Performance Data ................. 134
20.
Service Data ................................................... 135
20.1
Cool Mode Outdoor Air Temperature
Characteristic ........................................... 135
20.2
Heat Mode Outdoor Air Temperature
Characteristic ........................................... 139
20.3
Piping Length Correction Factor .............. 143
21.
Exploded View and Replacement Parts
List .................................................................. 146
21.1
Indoor Unit ............................................... 146
21.2
Outdoor Unit ............................................ 149
