Read Panasonic CS-MZ20UD3EA Service Manual online
Specifications, designs and contents in this Service Manual are subject to change without notice.
2
TABLE OF CONTENTS
PAGE
PAGE
1.
Safety Precautions ............................................. 3
2.
Precaution for Using R32 Refrigerant .............. 6
3.
Specifications ................................................... 10
4.
Features ............................................................. 16
5.
Location of Controls and Components .......... 17
5.1
Indoor Unit .................................................. 17
5.2
Remote Control .......................................... 17
6.
Dimensions ....................................................... 18
6.1
Indoor Unit .................................................. 18
7.
Refrigeration Cycle Diagram ........................... 19
8.
Block Diagram .................................................. 20
9.
Wiring Connection Diagram ............................ 21
9.1
Indoor Unit .................................................. 21
10.
Electronic Circuit Diagram .............................. 22
10.1
Indoor Unit .................................................. 22
11.
Printed Circuit Board ....................................... 23
11.1
Indoor Unit .................................................. 23
12.
Installation Instruction ..................................... 24
12.1
Indoor Unit .................................................. 25
13.
Installation and Servicing Air Conditioner
using R32 .......................................................... 35
using R32 .......................................................... 35
13.1
About R32 Refrigerant ................................ 35
13.2
Characteristics of R32 Refrigerant ............. 35
13.3
Refrigerant piping installation • Tools used
in services ................................................... 37
in services ................................................... 37
13.4
New installation, Relocation,
Repairing of Refrigerant Cycle System
The Procedures .......................................... 41
Repairing of Refrigerant Cycle System
The Procedures .......................................... 41
13.5
Piping installation of R32 ............................ 42
13.6
Installation, Relocation, and Service .......... 43
13.7
Repairing of refrigerant cycle /
Brazing point ............................................... 47
Brazing point ............................................... 47
13.8
<Reference> Analysis method for no error
code, no cooling / no warming .................... 53
code, no cooling / no warming .................... 53
14.
Operation and Control ..................................... 55
14.1
Basic Function ............................................ 55
14.2
Quiet Operation (Cooling Mode/Cooling
area of Soft Dry Mode) ............................... 58
area of Soft Dry Mode) ............................... 58
14.3
Powerful Mode Operation ........................... 59
14.4
Timer Control .............................................. 59
14.5
Auto Restart Control ................................... 59
14.6
Indication Panel .......................................... 59
14.7
HA Terminal (HAJEM-A) ............................ 60
15.
Operation Control
(For Multi Split Connection) ............................ 62
(For Multi Split Connection) ............................ 62
15.1
Cooling operation ....................................... 62
15.2
Soft Dry Operation ...................................... 62
15.3
Heating Operation ...................................... 62
15.4
Automatic Operation ................................... 63
15.5
Indoor Fan Motor Operation ....................... 63
15.6
Powerful Mode Operation ...........................63
15.7
Auto Restart Control ...................................63
15.8
Indication Panel ..........................................63
16.
Troubleshooting Guide ....................................64
16.1
Refrigeration Cycle System ........................64
16.2
Breakdown Self Diagnosis Function ...........66
16.3
Error Codes Table ......................................67
16.4
Self-diagnosis Method ................................69
17.
Disassembly and Assembly Instructions ......97
17.1
Indoor Electronic Controller, Blower Fan,
Fan Motor & Drain Motor Removal
Procedure. ..................................................97
Fan Motor & Drain Motor Removal
Procedure. ..................................................97
18.
Fan Performance ........................................... 100
18.1
CS-MZ20UD3EA ..................................... 100
19.
Exploded View and Replacement Parts
List .................................................................. 101
List .................................................................. 101
19.1
Indoor Unit ............................................... 101
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