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Service Manual
Model: GWC30LB-D3DNA3G
GWC30LB-D3DNA3H
GWH30LB-D3DNA3G
GWC36LB-D3DNA3G
GWH36LB-D3DNA3G
(Refrigerant R410A)
Service Manual
Table of contents
Table of Contents
Part Ė: Technical Information....................................................................... 1
1. Summary...................................................................................................................... 1
6SHFL¿FDWLRQV.......................................................................................................... 2
6SHFL¿FDWLRQ6KHHW........................................................................................................... 2
2SHUDWLRQ&KDUDFWHULVWLF&XUYH ........................................................................................ 8
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1RLVH&XUYH...................................................................................................................... 9
&RROLQJDQG+HDWLQJ'DWD6KHHWLQ5DWHG)UHTXHQF\ ..................................................... 9
3. Outline Dimension Diagram...................................................................... 10
3.1 Indoor Unit...................................................................................................................... 10
2XWGRRU8QLW ................................................................................................................... 10
4. Refrigerant System Diagram.....................................................................11
5. Electrical Part......................................................................................................... 13
5.1 Wiring Diagram............................................................................................................... 13
5.2 PCB Printed Diagram ..................................................................................................... 15
6. Function and Control...................................................................................... 17
5HPRWH&RQWUROOHU,QWURGXFWLRQ ..................................................................................... 17
%ULHI'HVFULSWLRQRI0RGHVDQG)XQFWLRQV...................................................................... 21
Part ė: Installation and Maintenance ................................................. 25
7. Notes for Installation and Maintenance.......................................... 25
8. Installation................................................................................................................ 27
8.1 Installation Dimension Diagram...................................................................................... 27
,QVWDOODWLRQ3DUWVFKHFNLQJ ............................................................................................ 29
8.3 Selection of Installation Location.................................................................................... 29
(OHFWULF&RQQHFWLRQ5HTXLUHPHQW.................................................................................. 29
8.5 Installation of Indoor Unit................................................................................................ 29
,QVWDOODWLRQRI2XWGRRU8QLW............................................................................................. 32
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Service Manual
Table of contents
9. Troubleshooting ..................................................................................................34
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7URXEOHVKRRWLQJIRU1RUPDO0DOIXQFWLRQ.........................................................................59
10. Exploded View and Parts List ..............................................................61
10.1 Indoor Unit....................................................................................................................61
2XWGRRU8QLW .................................................................................................................64
11. Removal Procedure.......................................................................................68
5HPRYDO3URFHGXUHRI,QGRRU8QLW ...............................................................................68
5HPRYDO3URFHGXUHRI2XWGRRU8QLW ............................................................................77
Appendix:........................................................................................................................83
$SSHQGL[5HIHUHQFH6KHHWRI&HOVLXVDQG)DKUHQKHLW ....................................................83
$SSHQGL[&RQ¿JXUDWLRQRI&RQQHFWLRQ3LSH.....................................................................83
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1. Summary
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Service Manual
Cooling only model
36K:
Cooling and heating model
Indoor unit Outdoor unit
COOLING
HEATING
4-Way valve
Discharge
Suction
Heat
exchanger
(evaporator) Heat
exchanger
(condenser)
Heat
exchanger
(condenser)
Valve
Valve
Liquid pipe
side
Gas pipe
side
Strainer Electron
expansion
valve
Strainer
Electron
expansion
valve
Accumlator
Compressor
Indoor unit Outdoor unit
Accumlator
COOLING
Discharge
Suction
Heat
exchanger
(evaporator)
Valve
Valve
Liquid pipe
side
Gas pipe
side
Compressor
Strainer
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5. Electrical Part
5.1 Wiring Diagram
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Symbol Symbol Color Symbol Symbol Color Symbol Name
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5.2 PCB Printed Diagram
ƔTop view
ƔBottom view
Indoor Unit
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222
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11
12
13
14
15
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terminal
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ƔTop view
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Outdoor Unit
No. Name No. Name No. Name
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6. Function and Control
6.1 Remote Controller Introduction
Introduction for icons on display screen
Introduction for buttons on remote controller
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