Table of Contents
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TABLE OF CONTENTS
1.
Safety Precautions ............................................. 3
2.
Precaution for Using R32 Refrigerant .............. 6
3.
Specification ..................................................... 11
4.
Features ............................................................. 23
5.
Location of Controls and Components .......... 24
5.1
Indoor Unit .................................................. 24
5.2
Outdoor Unit ............................................... 24
5.3
Remote Control .......................................... 24
6.
Dimensions ....................................................... 25
6.1
Indoor Unit .................................................. 25
6.2
Outdoor Unit ............................................... 27
7.
Refrigeration Cycle Diagram ........................... 29
7.1
7.2
CU-Z71VKR CU-Z80VKR ......................... 30
8.
Block Diagram .................................................. 31
8.1
CU-Z20VKR ................................................ 31
8.2
CU-Z25VKR CU-Z35VKR ......................... 32
8.3
CU-Z71VKR ................................................ 33
8.4
CU-Z80VKR ................................................ 34
9.
Wiring Connection Diagram ............................ 35
9.1
Indoor Unit .................................................. 35
9.2
Outdoor Unit ............................................... 36
10.
Electronic Circuit Diagram .............................. 40
10.1
Indoor Unit .................................................. 40
10.2
Outdoor Unit ............................................... 42
11.
Printed Circuit Board ....................................... 49
11.1
Indoor Unit .................................................. 49
11.2
Outdoor Unit ............................................... 52
12.
Installation Instruction ..................................... 57
12.1
Select the Best Location ............................. 57
12.2
Indoor Unit .................................................. 58
12.3
Outdoor Unit ............................................... 63
12.4
CZ-RD514C) ............................................... 68
13.
using R32 .......................................................... 73
13.1
About R32 Refrigerant ................................ 73
13.2
Characteristics of R32 Refrigerant ............. 73
13.3
in services ................................................... 75
13.4
Procedures ................................................. 79
13.5
Piping installation of R32 ............................ 80
13.6
Installation, Relocation, and Service .......... 81
13.7
point ............................................................ 85
13.8
code, no cooling / no warming .................... 91
Specifications, designs and contents in this Service Manual are subject to change without notice.
PAGE
14.
Operation and Control .....................................93
14.1
Basic Function ............................................93
14.2
Indoor Fan Motor Operation .......................95
14.3
Outdoor Fan Motor Operation ....................95
14.4
Airflow Direction ..........................................96
14.5
Area of Dry Mode) ......................................98
14.6
Quiet Operation (Heating) ..........................98
14.7
Powerful Mode Operation ...........................99
14.8
Mild Dry Cooling Operation ........................99
14.9
Timer Control ..............................................99
14.10
Auto Restart Control ................................ 100
14.11
Indication Panel ....................................... 100
14.12
14.13
Economy Mode Operation ....................... 102
14.14
HA Terminal (HAJEM-A) ......................... 102
14.15
Demand Control ...................................... 103
14.16
Pump down Operation by CN-S .............. 103
15.
Protection Control ......................................... 104
15.1
Protection Control for All Operations ....... 104
15.2
Operation ................................................. 106
15.3
Operation ................................................. 107
16.
Servicing Mode .............................................. 109
16.1
Auto OFF/ON Button ............................... 109
16.2
Remote Control Button ............................ 110
17.
Troubleshooting Guide ................................. 113
17.1
Refrigeration Cycle System ..................... 113
17.2
Breakdown Self Diagnosis Function ........ 115
17.3
Error Code Table ..................................... 116
17.4
Self-diagnosis Method ............................. 118
18.
18.1
CS-Z42VKR ............................................. 143
18.2
CS-Z80VKR ............................................. 150
18.3
Procedure ................................................ 157
19.
Technical Data ............................................... 160
19.1
Cool Mode Performance Data ................. 160
19.2
Heat Mode Performance Data ................. 168
20.
Service Data ................................................... 170
20.1
Characteristic ........................................... 170
20.2
Characteristic ........................................... 178
20.3
Piping Length Correction Factor .............. 186
21.
List .................................................................. 188
21.1
Indoor Unit ............................................... 188
21.2
Outdoor Unit ............................................ 196
2
X Operation ............................... 100
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