Gree GWH18RC-K3DBA5E User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
Model: GWH18RC-K3DBA5E
GWH18RC-K3DBA3E
GWH24RD-K3DBA5E
GWH24RD-K3DBA3E
GWH24RD-K3DBA2A
GWH24RD-K3DBA3A
(Refrigerant R410A)

Service Manual
Table of Contents
Table of Contents
Part Ė: Technical Information......................................................................... 1
1. Summary........................................................................................................................ 1
6SHFL¿FDWLRQV............................................................................................................ 2
6SHFL¿FDWLRQ6KHHW............................................................................................................. 2
2SHUDWLRQ&KDUDFWHULVWLF&XUYH .......................................................................................... 6
&DSDFLW\9DULDWLRQ5DWLR$FFRUGLQJWR7HPSHUDWXUH ........................................................... 6
&RROLQJDQG+HDWLQJ'DWD6KHHWLQ5DWHG)UHTXHQF\ ....................................................... 7
1RLVH&XUYH........................................................................................................................ 7
3. Outline Dimension Diagram.......................................................................... 8
3.1 Indoor Unit.......................................................................................................................... 8
2XWGRRU8QLW ....................................................................................................................... 9
4. Refrigerant System Diagram...................................................................... 10
5. Electrical Part............................................................................................................11
5.1 Wiring Diagram..................................................................................................................11
5.2 PCB Printed Diagram ....................................................................................................... 14
6. Function and Control........................................................................................ 17
5HPRWH&RQWUROOHU,QWURGXFWLRQ ....................................................................................... 17
%ULHI'HVFULSWLRQRI0RGHVDQG)XQFWLRQV........................................................................ 21
Part ė: Installation and Maintenance ................................................... 26
7. Notes for Installation and Maintenance............................................ 26
8. Installation.................................................................................................................. 28
8.1 Installation Dimension Diagram........................................................................................ 28
,QVWDOODWLRQ3DUWVFKHFNLQJ .............................................................................................. 30
8.3 Selection of Installation Location...................................................................................... 30
(OHFWULF&RQQHFWLRQ5HTXLUHPHQW..................................................................................... 30
8.5 Installation of Indoor Unit.................................................................................................. 30
,QVWDOODWLRQRI2XWGRRU8QLW............................................................................................... 33
9DFXXP3XPSLQJDQG/HDN'HWHFWLRQ ............................................................................. 34
&KHFNDIWHU,QVWDOODWLRQDQG7HVW2SHUDWLRQ ..................................................................... 34

Service Manual
Table of Contents
9. Maintenance.................................................................................................................35
3UHFDXWLRQVEHIRUH0DLQWHQDQFH......................................................................................... 35
9.2 Error Code List ....................................................................................................................36
7URXEOHVKRRWLQJIRU0DLQ0DOIXQFWLRQ .................................................................................41
7URXEOHVKRRWLQJIRU1RUPDO0DOIXQFWLRQ.............................................................................. 54
10. Exploded View and Parts’ List..................................................................56
10.1 Indoor Unit.........................................................................................................................56
2XWGRRU8QLW ......................................................................................................................61
11. Removal Procedure............................................................................................65
5HPRYDO3URFHGXUHRI,QGRRU8QLW ....................................................................................65
5HPRYDO3URFHGXUHRI2XWGRRU8QLW .................................................................................72
Appendix:.............................................................................................................................86
$SSHQGL[5HIHUHQFH6KHHWRI&HOVLXVDQG)DKUHQKHLW .........................................................86
$SSHQGL[&RQ¿JXUDWLRQRI&RQQHFWLRQ3LSH.......................................................................... 86
Appendix 3: Pipe Expanding MHWKRG ........................................................................................87
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Service Manual
1. Summary
Part Ė: Technical Information
Indoor Unit:
Outdoor Unit:
GWH18RC-K3DBA5E/I
GWH24RD-K3DBA5E/I
GWH18RC-K3DBA3E/I
GWH24RD-K3DBA3E/I
GWH24RD-K3DBA3A/I
GWH24RD-K3DBA2A/I
GWH18RC-K3DBA5E/O GWH24RD-K3DBA5E/O
GWH24RD-K3DBA2A/O
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Parameter Unit 9DOXH
Model GWH18RC-K3DBA5E
GWH18RC-K3DBA3E
GWH24RD-K3DBA5E
GWH24RD-K3DBA3E
3URGXFW&RGH CB304001600
CB302002300
CB304001500
CB302002400
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Rated Voltage V~ 220-240 220-240
5DWHG)UHTXHQF\ Hz 50 50
3KDVHV 11
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Cooling Capacity W 5275 6450
Heating Capacity W 5600 6450
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COP W/W 3.39 3.38
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Compressor Oil 68EP RB68EP
Compressor Type Rotary Rotary
L.R.A. A 25.00 25.00
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2YHUORDG3URWHFWRU 1NT11L-6233 1NT11L-6233
7KURWWOLQJ0HWKRG Capillary Capillary
Operation temp oC 16~30 16~30
Ambient temp (cooling) oC -15~43 -15~43
$PELHQWWHPSKHDWLQJ oC -20~24 -20~24
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Parameter Unit 9DOXH
Model GWH24RD-K3DBA2A
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3URGXFW&RGH CB301001900
CB302001300
Power
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Rated Voltage V~ 220-240
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Cooling Capacity W 6450
Heating Capacity W 6450
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0D['LVWDQFH/HQJWK m25
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Service Manual
2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
Cooling Heating
0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100 120110
80
11
10
9
8
7
6
5
4
3
2
1
0
11
10
9
8
7
6
5
4
3
2
1
0
220V
230V
240V
220V
230V
240V
Current (A) Current (A)
Conditions
Indoor:DB27°C/WB19°C
Outdoor:DB35°C
Indoor air flow:Super High
Pipe length:5m
Conditions
Indoor:DB20°C
Outdoor:DB7°C/WB6°C
Indoor air flow:Super High
Pipe length:5m
Compressor speed (rps) Compressor speed (rps)
Cooling Heating
32 33 34 35 36 37 38 39 43 –20 –15 –10
40 41 42
100
105
95
90
85
80
75
70
65
60
55
50
90
100
110
80
70
60
50
40 -5 0 8510
Conditions
Indoor:DB27°C/WB19°C
Indoor air flow:Super High
Pipe length:5m
Conditions
Indoor:DB20°C
Indoor air flow:Super High
Pipe length:5m
Outdoor tem
p
.
(
°C
)
Outdoor tem
p
.
(
°C
)
Capacity ratio (%)
Capacity ratio (%)

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Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
Instruction:
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7,QOHWDQGRXWOHWSLSHWHPSHUDWXUHRIFRQGHQVHU
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Cooling:
Heating:
2.5 Noise Curve
Indoor side noise 2XWGRRUVLGHQRLVH
20
30
40
50
60
200 40 60 80 100
Compressor frequency/Hz
60
50
40
30
20
10
0
Indoor Fan Motor Rotating Speed
Noice/dB(A) Noice/dB(A)
low Middle High Super High
18K 24K 18K 24K
Rated cooling condition(ć)
(DB/WB) Model
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connecting indoor and
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of indoor
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Compressor
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Indoor 2XWGRRU P (MPa) T1 (ć) T2 (ć)
27/19 35/24 18K 0.9~1.1 in:12~14
RXWa
in:75~85
RXWa 6XSHU+LJK +LJK 70
27/19 35/24 24K 0.9~1.1 in:12~14
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in:75~85
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(DB/WB) Model
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connecting indoor and
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of indoor
XQLW
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RIRXWGRRU
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Compressor
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Indoor 2XWGRRU P (MPa) T1 (°C) T2 (°C)
20/15 7/6 18K 2.2~2.4 in:75~85
RXWa
in:1~3
RXWa 6XSHU+LJK +LJK 73
20/15 7/6 24K 2.2~2.4 in:75~85
RXWa
in:1~3
RXWa 6XSHU+LJK +LJK 68