GREE GWC18QD-D3DNA6E (LC), GWH18QD-D3DNA6E (LCLH), GWC24QE-D3DNA6E (LC), GWH24QE-D3DNA6E (LCLH) split-system air conditioner Service Manual

Below you will find brief information for split-system air conditioner GWC18QD-D3DNA6E (LC), split-system air conditioner GWH18QD-D3DNA6E (LCLH), split-system air conditioner GWC24QE-D3DNA6E (LC), split-system air conditioner GWH24QE-D3DNA6E (LCLH). The Service Manual provides installation and maintenance instructions for GREE split-system air conditioners. The manual outlines the features, specifications, and operational characteristics of each model and guides on installation, troubleshooting, and routine maintenance procedures. The Service Manual is a comprehensive guide that allows you to understand the product thoroughly and keep your split-system air conditioner running in optimal condition.
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Service Manual
Models: GWC18QD-D3DNA6E(LC)
GWH18QD-D3DNA6E(LCLH)
GWC24QE-D3DNA6E(LC)
GWH24QE-D3DNA6E(LCLH)
(Refrigerant:R410A)
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Service Manual
Table of Contents
Part Ė : Technical Information ....................................................................... 1
1. Summary ...................................................................................................................... 1
6SHFL&iquest;FDWLRQV .......................................................................................................... 2
6SHFL&iquest;FDWLRQ6KHHW........................................................................................................... 2
2SHUDWLRQ&amp;KDUDFWHULVWLF&amp;XUYH ........................................................................................ 6
&amp;DSDFLW\9DULDWLRQ5DWLR$FFRUGLQJWR7HPSHUDWXUH ......................................................... 6
1RLVH&amp;XUYH...................................................................................................................... 7
&amp;RROLQJDQG+HDWLQJ'DWD6KHHWLQ5DWHG)UHTXHQF\ ..................................................... 7
3. Outline Dimension Diagram ........................................................................ 8
3.1 Indoor Unit........................................................................................................................ 8
2XWGRRU8QLW ..................................................................................................................... 9
4. Refrigerant System Diagram .................................................................... 10
5. Electrical Part..........................................................................................................11
5.1 Wiring Diagram................................................................................................................11
5.2 PCB Printed Diagram ..................................................................................................... 13
6. Function and Control ...................................................................................... 15
5HPRWH&amp;RQWUROOHU,QWURGXFWLRQ ..................................................................................... 15
%ULHI'HVFULSWLRQRI0RGHVDQG)XQFWLRQV...................................................................... 20
Part ė : Installation and Maintenance ................................................. 29
7. Notes for Installation and Maintenance.......................................... 29
8. Installation ................................................................................................................ 31
8.1 Installation Dimension Diagram...................................................................................... 31
,QVWDOODWLRQ3DUWVFKHFNLQJ ............................................................................................ 33
8.3 Selection of Installation Location.................................................................................... 33
(OHFWULF&amp;RQQHFWLRQ5HTXLUHPHQW.................................................................................. 33
8.5 Installation of Indoor Unit................................................................................................ 33
,QVWDOODWLRQRI2XWGRRU8QLW............................................................................................. 36
9DFXXP3XPSLQJDQG/HDN'HWHFWLRQ ........................................................................... 37
&amp;KHFNDIWHU,QVWDOODWLRQDQG7HVW2SHUDWLRQ ................................................................... 37
Table of contents
Service Manual
9. Maintenance ............................................................................................................38
3UHFDXWLRQVEHIRUH0DLQWHQDQFH....................................................................................38
9.2 Error Code List ...............................................................................................................39
7URXEOHVKRRWLQJIRU0DLQ0DOIXQFWLRQ ............................................................................42
7URXEOHVKRRWLQJIRU1RUPDO0DOIXQFWLRQ.........................................................................56
10. Exploded View and Parts List ..............................................................58
10.1 Indoor Unit....................................................................................................................58
2XWGRRU8QLW .................................................................................................................62
11. Removal Procedure .......................................................................................66
5HPRYDO3URFHGXUHRI,QGRRU8QLW ...............................................................................66
5HPRYDO3URFHGXUHRI2XWGRRU8QLW ............................................................................71
Appendix: ........................................................................................................................76
$SSHQGL[5HIHUHQFH6KHHWRI&amp;HOVLXVDQG)DKUHQKHLW ....................................................76
$SSHQGL[&amp;RQ&iquest;JXUDWLRQRI&amp;RQQHFWLRQ3LSH.....................................................................76
Appendix 3: Pipe Expanding MHWKRG ...................................................................................77
Appendix 4: List of RHVLVWDQFHIRU7HPSHUDWXUH6HQVRU ......................................................78
Table of contents
Service Manual
Part Ė : Technical Information
1. Summary
Indoor Unit:
GWC18QD-D3DNA6E/I(LC)
GWH18QD-D3DNA6E/I(LCLH)
GWC24QE-D3DNA6E/I(LC)
GWH24QE-D3DNA6E/I(LCLH)
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GWC18QD-D3DNA6E/O(LC)
GWH18QD-D3DNA6E/O(LCLH)
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17
Service Manual
7. SLEEP button
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8. TEMP button
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no display
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Note:
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9. I FEEL button
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10. LIGHT button
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11. CLOCK button
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Note:
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12. TIMER ON / TIMER OFF button
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Service Manual
Function introduction for combination buttons
1. Energy-saving function
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2. 8 ć heating function
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3. Child lock function
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4. Temperature display switchover function
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Operation guide
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Replacement of batteries in remote controller
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are correct.
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signal sender
battery
reinstall
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19
Service Manual
6.2 Brief Description of Modes and Functions
1.Basic function of system
(1)Cooling mode
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(4)Working method for AUTO mode:
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(5)Fan mode
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2. Other control
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(2) Auto button
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(3) Auto fan
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(4) Sleep
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(5) Timer function:
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(6) Memory function
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(7) Health function
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Service Manual
(8)I feel control mode
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(9)Compulsory defrosting function
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(10)Refrigerant recovery function:
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(11)Ambient temperature display control mode
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displayed.
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(12)Off-peak energization function:
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(13) SE control mode
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(14) X-fan mode
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WXUQHGRII:KHQ[IDQIXQFWLRQLVWXUQHGRIIDIWHUWXUQRIIWKHXQLWWKHFRPSOHWHXQLWZLOOEHWXUQHGRIIGLUHFWO\
(15) 8&ordm; heating function
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(16) Turbo fan control function
6HWWXUERIXQFWLRQXQGHUFRROLQJRUKHDWLQJPRGHWRHQWHULQWRWXUERIDQVSHHG3UHVVIDQVSHHGEXWWRQWRFDQFHOWXUERZLQG
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7HFKQLFDO,QIRUPDWLRQ
21
Service Manual
Outdoor Units
1. Input Parameter Compensation and Calibration
(1) Check the ambient temperature compensation function Indoor ambient temperature compensation function.
D,QFRROLQJPRGHWKHLQGRRUDPELHQWWHPSHUDWXUHSDUWLFLSDWLQJLQFRPSXWLQJFRQWURO 7LQGRRUDPELHQWWHPSHUDWXUH – ̲ TFRROLQJLQGRRUDPELHQWWHPSHUDWXUH
compensation)
E,QKHDWLQJPRGHWKHLQGRRUDPELHQWWHPSHUDWXUHSDUWLFLSDWLQJLQFRPSXWLQJFRQWURO 7LQGRRUDPELHQWWHPSHUDWXUH – ̲ TKHDWLQJLQGRRUDPELHQWWHPSHUDWXUH
compensation)
(2) Check effective judgment controls of parameters
(IIHFWLYHMXGJPHQWIXQFWLRQRIWKHRXWGRRUH[KDXVWWHPSHUDWXUHWKHUPREXOE:KHQFRQGLWLRQVDDQGEDUHVDWLV&iquest;HGWKHRXWGRRUH[KDXVW
WHPSHUDWXUHWKHUPREXOELVMXGJHGQRWWREHFRQQHFWHGLQWRSODFHWKHPDLQERDUGRIRXWHUXQLWVZLOOGLVSOD\IDLOXUHRIWKHRXWGRRUH[KDXVW
WHPSHUDWXUHWKHUPREXOEQRWFRQQHFWHGLQWRSODFHVWRSWKHPDFKLQHIRUUHSDLULQJDQGUHVXPHWKHPDFKLQHE\UHPRWHFRQWUROVRI21
2))
D-XGJPHQWRIH[KDXVWGHWHFWLRQWHPSHUDWXUHFKDQJH
$IWHUWKHFRPSUHVVRUVWDUWVXSDQGUXQVIRUPLQXWHVLIWKHFRPSUHVVRUIUHTXHQF\I+]DQGWKHULVLQJYDOXH7H[KDXVW7H[KDXVWDIWHUVWDUW
XSIRUPLQXWHV - TH[KDXVWEHIRUHVWDUWXS)WKHRXWGRRUH[KDXVWWHPSHUDWXUHWKHUPREXOEFDQEHMXGJHGQRWWREHFRQQHFWHGLQWRSODFHMXGJLQJ
RQFHZKHQWKHSRZHULVRQWKH&iquest;UVWWLPH
E&amp;RPSDUDWLYHMXGJPHQWRIH[KDXVWGHWHFWLRQWHPSHUDWXUHDQGFRQGHQVHUGHWHFWLRQWHPSHUDWXUH7SLSHWHPSHUDWXUH 7RXWGRRUSLSHWHPSHUDWXUHLQFRROLQJ
mode, TSLSHWHPSHUDWXUH 7LQGRRUSLSHWHPSHUDWXUHLQKHDWLQJPRGH$IWHUWKHFRPSUHVVRUVWDUWVXSDQGUXQVIRUPLQXWHVLIWKHFRPSUHVVRUIUHTXHQF\I
40Hz, and TSLSHWHPSHUDWXUH7H[KDXVWWKHRXWGRRUH[KDXVWWHPSHUDWXUHWKHUPREXOEFDQEHMXGJHGQRWWREHFRQQHFWHGLQWRSODFHMXGJLQJ
RQFHZKHQSRZHULVRQWKH&iquest;UVWWLPH
2. Basic Functions
(1) Cooling Mode
1. Conditions and processes of cooling operation:
,I WKH FRPSUHVVRU LV VKXW GRZQ DQG &gt;7VHWXS &plusmn; 7LQGRRU DPELHQW WHPSHUDWXUH – ̲ TFRROLQJ LQGRRU DPELHQW WHPSHUDWXUH FRPSHQVDWLRQ@  ) VWDUW XS WKH
PDFKLQHIRUFRROLQJWKHFRROLQJRSHUDWLRQZLOOVWDUW
'XULQJRSHUDWLRQVRIFRROLQJLI)&gt;7VHWXS&plusmn;7LQGRRUDPELHQWWHPSHUDWXUH – ̲ TFRROLQJLQGRRUDPELHQWWHPSHUDWXUHFRPSHQVDWLRQ@)WKHFRROLQJ
RSHUDWLRQZLOOEHVWLOOUXQQLQJ
'XULQJRSHUDWLRQVRIFRROLQJLI)&gt;7VHWXS&plusmn;7LQGRRUDPELHQWWHPSHUDWXUH – ̲ TFRROLQJLQGRRUDPELHQWWHPSHUDWXUHFRPSHQVDWLRQ@WKHFRROLQJRSHUDWLRQ
ZLOOVWRSDIWHUUHDFKLQJWKHWHPSHUDWXUHSRLQW
2. Temperature setting range
(1) If TRXWGRRUDPELHQWWHPSHUDWXUH&gt;7ORZWHPSHUDWXUHFRROLQJWHPSHUDWXUH@WKHWHPSHUDWXUHFDQEHVHWDWa)&amp;RROLQJDWURRPWHPSHUDWXUH
(2) If TRXWGRRUDPELHQWWHPSHUDWXUH&gt;7ORZWHPSHUDWXUHFRROLQJWHPSHUDWXUH@WKHWHPSHUDWXUHFDQEHVHWDWa)&amp;RROLQJDWORZWHPSHUDWXUHWKDWLVWKH
PLQLPXPVHWWLQJWHPSHUDWXUHIRURXWHUXQLWVMXGJPHQWLV)
(2) Dehumidifying Mode
&amp;RQGLWLRQVDQGSURFHVVHVRIGHKXPLGLI\LQJRSHUDWLRQV6DPHDVWKHFRROLQJPRGH
7KHWHPSHUDWXUHVHWWLQJUDQJHLVa)
(3) Air-supplying Mode
7KHFRPSUHVVRURXWGRRUIDQVDQGIRXUZD\YDOYHVDUHVZLWFKHGRII
7KHWHPSHUDWXUHVHWWLQJUDQJHLVa)
(4) Heating Mode
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operations)
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WRHQWHULQWRKHDWLQJRSHUDWLRQVIRUKHDWLQJ
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RSHUDWLRQZLOOEHVWLOOUXQQLQJ
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22
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Service Manual
3. Special Functions
Defrosting Control
ķ Conditions for starting defrosting
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WKHGHIURVWLQJRSHUDWLRQZLOOVWDUW
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Ĺ TRXWGRRUSLSHWHPSHUDWXUH7RXWGRRUDPELHQWWHPSHUDWXUH&plusmn;&gt;7WHPSHUDWXUHRI&iquest;QLVKLQJGHIURVWLQJ@
ĺ 7KHFRQWLQXRXVUXQQLQJWLPHRIGHIURVWLQJUHDFKHV&gt;WPD[GHIURVWLQJWLPH@
4. Control Logic
(1) Compressor Control
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VKXWGRZQPRGHVZLWFKLQJHWF,QDOOPRGHVRQFHWKHFRPSUHVVRUVWRSVLWZLOOEHDOORZHGEHUHVWDUWDIWHUPLQXWHGHOD\1RWH7KH
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delay).
1. Cooling mode
6WDUWWKHPDFKLQHWRHQWHULQWRFRROLQJRSHUDWLRQIRUFRROLQJWKHFRPSUHVVRULVVZLWFKHGRQ
2. Dehumidifying mode
6DPHDVWKHFRROLQJPRGH
3. Air-supplying mode
7KHFRPSUHVVRULVVZLWFKHGRII
4. Heating mode
6WDUWWKHPDFKLQHWRHQWHULQWRKHDWLQJRSHUDWLRQIRUKHDWLQJWKHFRPSUHVVRULVVZLWFKHGRQ
(2) Defrosting:
D'HIURVWLQJVWDUWVWKHFRPSUHVVRULVVKXWGRZQDQGUHVWDUWVLWDIWHUVHFRQGGHOD\
E'HIURVWLQJHQGVWKHFRPSUHVVRUVWRSVWKHQVWDUWVLWDIWHUVHFRQGGHOD\
(2) Outer Fans Control
Notes:
2QO\WKHRXWHUIDQVUXQIRUDWOHDVWVLQHDFKDLU&Agrave;RZVSHHGFDQWKHDLU&Agrave;RZEHVZLWFKHG
$IWHUWKHRXWHUIDQVUXQFRPSXOVLYHO\LQKLJKVSHHGIRUVZKHQWKHPDFKLQHVWDUWVXSFRQWUROWKHDLU&Agrave;RZDFFRUGLQJWRWKHORJLF
$IWHUUHPRWHVKXWGRZQVDIHW\VWRSVDQGZKHQWKHPDFKLQHVWRSVDIWHUUHDFKLQJWKHWHPSHUDWXUHSRLQWDVZHOODVDIWHUWKHFRPSUHVVRU
VWRSVH[WHQGPLQXWHWKHRXWHUIDQVZLOOVWRS'XULQJWKHSHULRGLQWKHPLQXWHWKHDLU&Agrave;RZRIRXWHUIDQVFDQEHFKDQJHGDFFRUGLQJWR
WKHRXWGRRUDPELHQWWHPSHUDWXUHFKDQJHV:KHQUXQQLQJZLWKIRUFHWKHRXWGRRUIDQVVKDOOUXQLQWKHKLJKHVWDLU&Agrave;RZ
(3) 4-way valve control
7KHZD\YDOYHFRQWUROXQGHUWKHPRGHVRI&amp;RROLQJGHKXPLGL&iquest;FDWLRQDQGVXSSO\LQJDLUFORVLQJ
7KHVWDWXVRIZD\YDOYHFRQWUROXQGHUWKHKHDWLQJPRGHJHWWLQJSRZHU
ZD\YDOYHSRZHUFRQWUROXQGHUKHDWLQJPRGH
D6WDUWVWKHPDFKLQHXQGHUKHDWLQJPRGHWKHZD\YDOYHZLOOJHWSRZHULPPHGLDWHO\
ZD\YDOYHSRZHUWXUQRIIFRQWUROXQGHUKHDWLQJPRGH
D:KHQ\RXVKRXOGWXUQRIIWKHSRZHURUVZLWFKWRRWKHUPRGHXQGHUKHDWLQJPRGHWKHSRZHURIZD\YDOYHZLOOEHFXWDIWHUPLQXWHV
RIWKHFRPSUHVVRUVWRSSHG
E:KHQDOONLQGVRISURWHFWLRQVWRSVWKHSRZHURIZD\YDOYHZLOOEHFXWDIWHUGHOD\LQJPLQXWHV
'HIURVWLQJFRQWUROXQGHUKHDWLQJPRGH
D'HIURVWLQJEHJLQV7KHSRZHURIZD\YDOYHZLOOEHFXWDIWHUVRIHQWHULQJLQWRWKHGHIURVWLQJ
compressor.
E'HIURVWLQJVWRSV7KHZD\YDOYHZLOOJHWSRZHUDIWHUVRIH[LWLQJWKHGHIURVWLQJFRPSUHVVRU
(4) Evaporator frozen-preventing protection function
$WWKHPRGHRI&amp;RROLQJGHKXPLGLI\LQJ
(YDSRUDWRUIUR]HQSUHYHQWLQJSURWHFWLRQIXQFWLRQLVDOORZHGWREHJLQDIWHUPLQRIVWDUWLQJWKHFRPSUHVVRU
7HFKQLFDO,QIRUPDWLRQ
23
Service Manual
1. Starting estimation:
$IWHU WKH FRPSUHVVRU VWRSSHG ZRUNLQJ IRU V LI7inner pipe! &gt;7IUR]HQSUHYHQWLQJ IUHTXHQF\OLPLWHG WHPSHUDWXUH WKH WHPSHUDWXUH RI K\VWHUHVLV LV ) @
WKHPDFKLQHLVRQO\DOORZHGWRVWDUWIRURSHUDWLQJRWKHUZLVHLWVKRXOGQRWEHVWDUWHGDQGVKRXOGEHVWRSSHGWRWUHDWDFFRUGLQJWRWKHIUR]HQ
SUHYHQWLQJSURWHFWLRQ&amp;OHDUWKHWURXEOHXQGHUWKHPRGHRISRZHUWXUQRIIKHDWLQJDQGWKHSURWHFWLRQWLPHVDUHQRWFRXQWHG
2. Frequency limited
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compressor.
3. Reducing frequency at normal speed:
,I &gt;7IUR]HQSUHYHQWLQJ KLJK VSHHG IUHTXHQF\UHGXFLQJ WHPSHUDWXUH@ &gt;7LQQHU SLSH 7 IUR]HQSUHYHQWLQJ QRUPDO VSHHG IUHTXHQF\UHGXFLQJ WHPSHUDWXUH@ \RX VKRXOG DGMXVW WKH FRPSUHVVRU
IUHTXHQF\E\UHGXFLQJ+]VWLOOWKHORZHUOLPLW
4. Reducing frequency at high speed:
,I&gt;7IUR]HQSUHYHQWLQJSRZHUWXUQRIIWHPSHUDWXUH@7 inner pipe&gt;7IUR]HQSUHYHQWLQJKLJKVSHHGIUHTXHQF\UHGXFLQJWHPSHUDWXUH@\RXVKRXOGDGMXVWWKHFRPSUHVVRUIUHTXHQF\E\
UHGXFLQJ+]VWLOOWKHORZHUOLPLW
5. Power turn-off:
,IWKH7inner pipe&gt;7IUR]HQSUHYHQWLQJSRZHUWXUQRIIWHPSHUDWXUH@WKHQIUR]HQSUHYHQWLQJSURWHFWWRVWRSWKHPDFKLQH,I7&gt;IUR]HQSUHYHQWLQJIUHTXHQF\OLPLWHGWHPSHUDWXUH]
&lt;Tinner pipeDQGWKHFRPSUHVVRUKDVVWRSSHGZRUNLQJIRUPLQXWHVWKHZKROHPDFKLQHVKRXOGEHDOORZHGWRRSHUDWH
,IWKHIUR]HQSUHYHQWLQJSURWHFWLRQSRZHUWXUQRIIFRQWLQXRXVO\RFFXUVIRUVL[WLPHVLWVKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG\RXVKRXOG
SUHVV WKH 212)) EXWWRQ WR UHVXPH LI WKH IDXOW NHHSV RQ 'XULQJ WKH SURFHVV RI UXQQLQJ LI WKH UXQQLQJ WLPH RI FRPSUHVVRU H[FHHGV WKH W
HYDSRUDWRUIUR]HQSUHYHQWLQJSURWHFWLRQWLPHV]HURFOHDULQJWLPHWKHWLPHVRIIUR]HQSUHYHQWLQJSRZHUWXUQRIIVKRXOGEHFOHDUHGWRUHFRXQW
7KHPRGHRIVWRSSLQJWKHPDFKLQHRUWUDQVIHUULQJWRVXSSO\DLUZLOOFOHDUWKHWURXEOHWLPHVLPPHGLDWHO\LIWKHWURXEOHFDQQRWEHUHVXPHG
mode transferring will not clear it).
(5) Overload protection function
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1. Starting estimation:
$IWHUWKHFRPSUHVVRUVWRSSHGZRUNLQJIRUVLI7RXWHUSLSH&gt;7&amp;RROLQJRYHUORDGIUHTXHQF\OLPLWHGWHPSHUDWXUH@WKHWHPSHUDWXUHRIK\VWHUHVLVLV)WKH
PDFKLQHLVDOORZHGWRVWDUWRWKHUZLVHLWVKRXOGQRWEHVWDUWHGDQGVKRXOGEHVWRSSHGWRWUHDWDFFRUGLQJWRWKHRYHUORDGSURWHFWLRQ&amp;OHDUWKH
WURXEOHDWWKHPRGHRISRZHUWXUQRIIKHDWLQJDQGWKHSURWHFWLRQWLPHVDUHQRWFRXQWHG
2. Frequency limited
,I &gt;7&amp;RROLQJ RYHUORDG IUHTXHQF\OLPLWHG WHPSHUDWXUH@ &gt;7RXWHU SLSH 7 &amp;RROLQJ RYHUORDG IUHTXHQF\ UHGXFLQJ WHPSHUDWXUH DW QRUPDO VSHHG@ \RX VKRXOG OLPLW WKH IUHTXHQF\ UDLVLQJ RI
compressor.
3. Reducing frequency at normal speed and power turn-off:
,I&gt;7&amp;RROLQJRYHUORDGIUHTXHQF\UHGXFLQJWHPSHUDWXUHDWKLJKVSHHG@7 RXWHUSLSH&gt;7&amp;RROLQJRYHUORDGSRZHUWXUQRIIWHPSHUDWXUH@\RXVKRXOGDGMXVWWKHFRPSUHVVRUIUHTXHQF\
E\UHGXFLQJ+]VWLOOWKHORZHUOLPLW$IWHULWZDVUXQQLQJVDWWKHORZHUOLPLWLI&gt;7&amp;RROLQJRYHUORDGIUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHG@7RXWHUSLSH,
WKHQ&amp;RROLQJRYHUORDGSURWHFWVPDFKLQHVWRSSLQJ
4. Reducing frequency at high speed and stop machine:
,I&gt;7&amp;RROLQJRYHUORDGIUHTXHQF\UHGXFLQJWHPSHUDWXUHDWKLJKVSHHG@7RXWHUSLSH&gt;7&amp;RROLQJRYHUORDGSRZHUWXUQRIIWHPSHUDWXUH@\RXVKRXOGDGMXVWWKHFRPSUHVVRUIUHTXHQF\E\
UHGXFLQJ+]VWLOOWKHORZHUOLPLW$IWHULWZDVUXQQLQJVDWWKHORZHUOLPLWLI&gt;7&amp;RROLQJRYHUORDGIUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHG@&gt;7RXWHUSLSH@,
WKHQ&amp;RROLQJRYHUORDGSURWHFWVPDFKLQHVWRSSLQJ
5. Power turn-off:
,I WKH &gt;7&amp;RROLQJ RYHUORDG SRZHU WXUQRII WHPSHUDWXUH@ 7RXWHU SLSH WKHQ &amp;RROLQJ RYHUORDG SURWHFWV PDFKLQH VWRSSLQJ ,I &gt;7RXWHU SLSH@&gt;7&amp;RROLQJ RYHUORDG IUHTXHQF\OLPLWHG
WHPSHUDWXUH@DQGWKHFRPSUHVVRUKDVEHHQVWRSSHGZRUNLQJIRUPLQXWHVWKHPDFKLQHVKRXOGEHDOORZHGWRRSHUDWH
,IWKH&amp;RROLQJRYHUORDGSURWHFWLRQSRZHUWXUQRIIFRQWLQXRXVO\RFFXUVIRUVL[WLPHVLWVKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG\RXVKRXOG
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RYHUORDG SURWHFWLRQ WLPHV ]HUR FOHDULQJ WLPH WKH WLPHV RI RYHUORDG SURWHFWLRQ SRZHU WXUQRII VKRXOG EH FOHDUHG WR UHFRXQW 7KH PRGH RI
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mode will not clear it).
Overload protection function at the mode of heating
Starting estimation :
$IWHU WKH FRPSUHVVRU VWRSSHG ZRUNLQJ IRU V LI 7 LQQHU SLSH 7 KHDWLQJ RYHUORDG IUHTXHQF\OLPLWHG WHPSHUDWXUH WKH WHPSHUDWXUH RI
K\VWHUHVLVLV)WKHPDFKLQHLVDOORZHGWRVWDUWRWKHUZLVHLWVKRXOGQRWEHVWDUWHGDQGVKRXOGEHVWRSSHGWRWUHDWDFFRUGLQJWRWKH
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24
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Service Manual
1. Frequency limited
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compressor.
2. Reducing frequency at normal speed and stopping machine:
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IUHTXHQF\ E\ UHGXFLQJ +]V WLOO WKH ORZHU OLPLW$IWHU LW ZDV UXQQLQJ V DW WKH ORZHU OLPLW LI 7 KHDWLQJ RYHUORDG IUHTXHQF\ UHGXFLQJ
WHPSHUDWXUHDWQRUPDOVSHHG7LQQHUSLSHWKHQRYHUORDGSURWHFWVPDFKLQHVWRSSLQJ
3. Reducing frequency at high speed and power turn-off:
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UHGXFLQJ+]VWLOOWKHORZHUOLPLW$IWHULWZDVUXQQLQJVDWWKHORZHUOLPLWLI7KHDWLQJRYHUORDGIUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDO
VSHHG7RXWHUSLSHWKHQ&amp;RROLQJRYHUORDGSURWHFWVPDFKLQHVWRSSLQJ
4. Power turn-off:
,IWKH&gt;7KHDWLQJRYHUORDGSRZHUWXUQRIIWHPSHUDWXUH@7inner pipeWKHQRYHUORDGSURWHFWVPDFKLQHVWRSSLQJ,I7LQQHUSLSH7KHDWLQJRYHUORDGIUHTXHQF\OLPLWHG
WHPSHUDWXUHDQGWKHFRPSUHVVRUKDVEHHQVWRSSHGZRUNLQJIRUPLQXWHVWKHPDFKLQHVKRXOGEHDOORZHGWRRSHUDWH
,I WKH RYHUORDG SURWHFWLRQ SRZHU WXUQRII FRQWLQXRXVO\ RFFXUV IRU VL[ WLPHV LW VKRXOG QRW EH UHVXPHG DXWRPDWLFDOO\ DQG \RX VKRXOG SUHVV
WKH212))EXWWRQWRUHVXPHLIWKHIDXOWNHHSVRQ'XULQJWKHSURFHVVRIUXQQLQJLIWKHUXQQLQJWLPHRIFRPSUHVVRUH[FHHGVWKHWRYHUORDG
SURWHFWLRQWLPHV]HURFOHDULQJWLPHWKHWLPHVRIRYHUORDGSURWHFWLRQSRZHUWXUQRIIVKRXOGEHFOHDUHGWRUHFRXQW7KHPRGHRIVWRSSLQJWKH
PDFKLQHRUWUDQVIHUULQJWRVXSSO\DLUZLOOFOHDUWKHWURXEOHWLPHVLPPHGLDWHO\LIWKHWURXEOHFDQQRWEHUHVXPHGWUDQVIHUULQJPRGHZLOOQRWFOHDU
LW3URWHFWLYHIXQFWLRQIRUGLVFKDUJHWHPSHUDWXUHRIFRPSUHVVRU
1. Starting estimation:
$IWHUWKHFRPSUHVVRUVWRSSHGZRUNLQJIRUVLI7'LVFKDUJH &lt;T'LVFKDUJHOLPLWHGWHPSHUDWXUHWKHWHPSHUDWXUHRIK\VWHUHVLVLV)WKHPDFKLQHLV
DOORZHGWRVWDUWRWKHUZLVHLWVKRXOGQRWEHVWDUWHGDQGVKRXOGEHVWRSSHGWRWUHDWDFFRUGLQJWRWKHGLVFKDUJHWHPSHUDWXUH
7KH PDFKLQH VKRXOG EH VWRSSHG RU WUDQVIHUUHG WR VXSSO\ DLU WKH WURXEOH VKRXOG EH FOHDUHG LPPHGLDWHO\ DQG WKH SURWHFWLRQ WLPHV DUH QRW
FRXQWHG
2. Frequency limited
,I&gt;7/LPLWHGIUHTXHQF\WHPSHUDWXUHGXULQJGLVFKDUJLQJ@7'LVFKDUJH&gt;7IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHGGXULQJGLVFKDUJLQJ@\RXVKRXOGOLPLWWKHIUHTXHQF\UDLVLQJRI
compressor.
3. Reducing frequency at normal speed and stopping machine:
,I&gt;7IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHGGXULQJGLVFKDUJLQJ@7'LVFKDUJH&gt;7IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWKLJKVSHHGGXULQJGLVFKDUJLQJ@\RXVKRXOGDGMXVWWKHFRPSUHVVRU
IUHTXHQF\E\UHGXFLQJ+]VWLOOWKHORZHUOLPLW$IWHULWZDVUXQQLQJVDWWKHORZHUOLPLWLI&gt;7IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHGGXULQJGLVFKDUJLQJ]
7'LVFKDUJH\RXVKRXOGGLVFKDUJHWRSURWHFWPDFKLQHVWRSSLQJ
4. Reducing frequency at high speed and power turn-off:
,I&gt;7IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWKLJKVSHHGGXULQJGLVFKDUJLQJ@7'LVFKDUJH&gt;76WRSWHPSHUDWXUHGXULQJGLVFKDUJLQJ@\RXVKRXOGDGMXVW
WKHFRPSUHVVRUIUHTXHQF\E\UHGXFLQJ+]VWLOOWKHORZHUOLPLW$IWHULWZDVUXQQLQJVDWWKHORZHUOLPLWLI&gt;7IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDO
VSHHGGXULQJGLVFKDUJLQJ@7'LVFKDUJH\RXVKRXOGGLVFKDUJHWRSURWHFWPDFKLQHVWRSSLQJ
5. Power turn-off:
,IWKH&gt;73RZHUWXUQRIIWHPSHUDWXUHGXULQJGLVFKDUJLQJ@7'LVFKDUJH\RXVKRXOGGLVFKDUJHWRSURWHFWPDFKLQHVWRSSLQJ,I&gt;7'LVFKDUJH@&gt;7/LPLWHGIUHTXHQF\WHPSHUDWXUHGXULQJ
GLVFKDUJLQJ@DQGWKHFRPSUHVVRUKDVEHHQVWRSSHGIRUPLQXWHVWKHPDFKLQHVKRXOGEHDOORZHGWRRSHUDWH
,IWKHGLVFKDUJLQJWHPSHUDWXUHSURWHFWLRQRIFRPSUHVVRUFRQWLQXRXVO\RFFXUVIRUVL[WLPHVLWVKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG\RX
VKRXOGSUHVVWKH212))EXWWRQWRUHVXPH'XULQJWKHSURFHVVRIUXQQLQJLIWKHUXQQLQJWLPHRIFRPSUHVVRUH[FHHGVWKHW3URWHFWLRQWLPHV
FOHDULQJ RIGLVFKDUJH WKHGLVFKDUJHSURWHFWLRQLVFOHDUHGWRUHFRXQW6WRSSHGRUWUDQVIHUUHGWRVXSSO\DLUPRGHZLOOFOHDUWKHWURXEOHWLPHV
LPPHGLDWHO\LIWKHWURXEOHFDQQRWEHUHVXPHGPRGHWUDQVIHUULQJDOVRZLOOQRWFOHDULW
7. Frequency limited
,I&gt;,/LPLWHGIUHTXHQF\ZKHQRYHUFXUUHQW@,$&amp;(OHFWULFFXUUHQW&gt;,IUHTXHQF\UHGXFLQJZKHQRYHUFXUUHQW@\RXVKRXOGOLPLWWKHIUHTXHQF\UDLVLQJRIFRPSUHVVRU
8. Reducing frequency:
,I&gt;,)UHTXHQF\UHGXFLQJZKHQRYHUFXUUHQW@&gt;,$&amp;(OHFWULFFXUUHQW,3RZHUWXUQRIIZKHQRYHUFXUUHQW@\RXVKRXOGUHGXFHWKHFRPSUHVVRUIUHTXHQF\WLOOWKHORZHUOLPLWRUH[LW
WKHIUHTXHQF\UHGXFLQJFRQGLWLRQ
9. Power turn-off:
,I&gt;,3RZHUWXUQRIIPDFKLQHZKHQRYHUFXUUHQW@&gt;,$&amp;(OHFWULFFXUUHQW@\RXVKRXOGFDUU\RXWWKHRYHUFXUUHQWVWRSSLQJSURWHFWLRQ,I,$&amp;(OHFWULFFXUUHQW&gt;7/LPLWHGIUHTXHQF\ZKHQ
RYHUFXUUHQW@DQGWKHFRPSUHVVRUKDVEHHQVWRSSHGIRUPLQXWHVWKHPDFKLQHVKRXOGEHDOORZHGWRRSHUDWH
,IWKHRYHUFXUUHQWSURWHFWLRQFRQWLQXRXVO\RFFXUVIRUVL[WLPHVLWVKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG\RXVKRXOGSUHVVWKH212))
EXWWRQ WR UHVXPH 'XULQJ WKH SURFHVV RI UXQQLQJ LI WKH UXQQLQJ WLPH RI FRPSUHVVRU H[FHHGV WKH &gt;W 3URWHFWLRQ WLPHV FOHDULQJ RI RYHU FXUUHQW@ WKH GLVFKDUJH
SURWHFWLRQLVFOHDUHGWRUHFRXQW
7HFKQLFDO,QIRUPDWLRQ
25
Service Manual
(6)Voltage sag protection
$IWHUVWDUWWKHFRPSUHVVRULIWKHWLPHRI'&amp;OLQN9ROWDJHVDJ&gt;86DJJLQJSURWHFWLRQYROWDJH@LVPHDVXUHGWREHOHVVWKDQW9ROWDJHVDJSURWHFWLRQWLPH
WKHPDFKLQHVKRXOGEHVWRSDWRQFHKDQGRQWKHYROWDJHVDJWURXEOHUHERRWDXWRPDWLFDOO\DIWHUPLQXWHV
(7)Communication fault
:KHQ\RXKDYHQRWUHFHLYHGDQ\FRUUHFWVLJQDOIURPWKHLQQHUPDFKLQHLQWKUHHPLQXWHVWKHPDFKLQHZLOOVWRSIRUFRPPXQLFDWLRQIDXOW:KHQ
\RXKDYHQRWUHFHLYHGDQ\FRUUHFWVLJQDOIURPGULYHU,&amp;DLPWRWKHFRQWUROOHUIRUWKHVHSDUDWLQJRIPDLQFRQWURO,&amp;DQGGULYHU,&amp;DQGWKH
PDFKLQHZLOOVWRSIRUFRPPXQLFDWLRQIDXOW,IWKHFRPPXQLFDWLRQLVUHVXPHGWKHPDFKLQHZLOOEHDOORZHGWRRSHUDWH
(8)Module protection
7HVWLQJWKHPRGXOHSURWHFWLYHVLJQDOLPPHGLDWHO\DIWHUVWDUWHGRQFHWKHPRGXOHSURWHFWLYHVLJQDOLVPHDVXUHGVWRSWKHPDFKLQHZLWKPRGXOH
SURWHFWLRQ LPPHGLDWHO\ ,I WKHPRGXOH SURWHFWLRQ LVUHVXPHGWKHPDFKLQH ZLOO EHDOORZHG WRRSHUDWH,IWKHPRGXOH SURWHFWLRQ FRQWLQXRXVO\
RFFXUVIRUWKUHHWLPHVLWVKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG\RXVKRXOGSUHVVWKH212))EXWWRQWRUHVXPH,IWKHUXQQLQJWLPHRI
FRPSUHVVRUH[FHHGVWKH&gt;W3URWHFWLRQWLPHVFOHDULQJRIPRGXOH@WKHPRGXOHSURWHFWLRQLVFOHDUHGWRUHFRXQW
(9)Module overheating protection
1. Starting estimation:
$IWHU WKH FRPSUHVVRU VWRSSHG ZRUNLQJ IRU V LI 70RGXOH&gt;70RGXOH IUHTXHQF\ OLPLWHG WHPSHUDWXUH@WKH WHPSHUDWXUH RI K\VWHUHVLV LV ) WKH PDFKLQH
LVDOORZHGWRVWDUWRWKHUZLVHLWVKRXOGQRWEHVWDUWHGDQGVKRXOGEHVWRSSHGWRWUHDWDFFRUGLQJWRWKHPRGXOHRYHUKHDWLQJSURWHFWLRQ7KH
PDFKLQHVKRXOGEHVWRSSHGRUWUDQVIHUUHGWRVXSSO\DLUWKHWURXEOHVKRXOGEHFOHDUHGLPPHGLDWHO\DQGWKHSURWHFWLRQWLPHVDUHQRWFRXQWHG
2. Frequency limited
,I&gt;7/LPLWHGIUHTXHQF\WHPSHUDWXUHRIPRGXOH@70RGXOH&gt;7IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHGRIPRGXOH@\RXVKRXOGOLPLWWKHIUHTXHQF\UDLVLQJRIFRPSUHVVRU
3. Reducing frequency at normal speed and power turn-off:
,I &gt;7IUHTXHQF\ UHGXFLQJ WHPSHUDWXUH DW QRUPDO VSHHG RI PRGXOH@ 70RGXOH&gt;7IUHTXHQF\ UHGXFLQJ WHPSHUDWXUH DW KLJK VSHHG RI PRGXOH@ \RX VKRXOG DGMXVW WKH FRPSUHVVRU IUHTXHQF\ E\
UHGXFLQJ+]VWLOOWKHORZHUOLPLW$IWHULWZDVUXQQLQJVDWWKHORZHUOLPLWLI&gt;7IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHGRIPRGXOH@70RGXOH\RXVKRXOG
VWRSWKHPDFKLQHIRUPRGXOHRYHUKHDWLQJSURWHFWLRQ
4. Reducing frequency at high speed and power turn-off:
,I&gt;7IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWKLJKVSHHGRIPRGXOH@70RGXOH&gt;73RZHUWXUQRIIWHPSHUDWXUHRIPRGXOH@\RXVKRXOGDGMXVWWKHFRPSUHVVRUIUHTXHQF\E\UHGXFLQJ+]V
WLOOWKHORZHUOLPLW$IWHULWZDVUXQQLQJVDWWKHORZHUOLPLWLI&gt;7IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHGRIPRGXOH@70RGXOH\RXVKRXOGVWRSWKHPDFKLQHIRU
PRGXOHRYHUKHDWLQJSURWHFWLRQ
5. Power turn-off:
,IWKH&gt;73RZHUWXUQRIIWHPSHUDWXUHRIPRGXOH@70RGXOH\RXVKRXOGVWRSWKHPDFKLQHIRUPRGXOHRYHUKHDWLQJSURWHFWLRQ,I70RGXOH&gt;7/LPLWHGIUHTXHQF\WHPSHUDWXUHRIPRGXOH]
DQGWKHFRPSUHVVRUKDVEHHQVWRSSHGIRUPLQXWHVWKHPDFKLQHVKRXOGEHDOORZHGWRRSHUDWH
,ISURWHFWLRQFRQWLQXRXVO\RFFXUVIRUVL[WLPHVLWVKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG\RXVKRXOGSUHVVWKH212))EXWWRQWRUHVXPH
'XULQJWKHSURFHVVRIUXQQLQJLIWKHUXQQLQJWLPHRIFRPSUHVVRUH[FHHGVWKH&gt;W 3URWHFWLRQWLPHVFOHDULQJRIPRGXOH@WKHGLVFKDUJHSURWHFWLRQLVFOHDUHG
WR UHFRXQW 6WRSSHG RU WUDQVIHUUHG WR VXSSO\ DLU PRGH ZLOO FOHDU WKH WURXEOH WLPHV LPPHGLDWHO\ LI WKH WURXEOH FDQ QRW EH UHVXPHG PRGH
transferring also will not clear it).
(10)Compressor overloads protection
,I \RX PHDVXUH WKH FRPSUHVVRU RYHUORDG VZLWFK DFWLRQ LQ V WKH FRPSUHVVRU VKRXOG EH VWRSSHG IRU RYHUORDGLQJ7KH PDFKLQH VKRXOG EH
DOORZHG WR RSHUDWH DIWHU RYHUORDG SURWHFWLRQ ZDV PHDVXUHG WR UHVXPH ,I WKH RYHUORDGLQJ SURWHFWLRQ FRQWLQXRXVO\ RFFXUV IRU WKUHH WLPHV LW
VKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG\RXVKRXOGSUHVVWKH212))EXWWRQWRUHVXPH7KHSURWHFWLRQWLPHVRIFRPSUHVVRULVDOORZHGWR
FOHDUDIWHUWKHFRPSUHVVRUUXQ&gt;W3URWHFWLRQWLPHVFOHDULQJRIFRPSUHVVRURYHUORDGLQJ@PLQXWHV
(11)Phase current overcurrent protection of compressor
'XULQJWKHUXQQLQJSURFHVVRIFRPSUHVVRU\RXFRXOGPHDVXUHWKHSKDVHFXUUHQWRIWKHFRPSUHVVRUDQGFRQWUROLWDFFRUGLQJWRWKHIROORZLQJ
steps:
1. Frequency limited
,I&gt;,/LPLWHGIUHTXHQF\SKDVHFXUUHQW@&gt;,3KDVHFXUUHQW7IUHTXHQF\UHGXFLQJSKDVHFXUUHQW@\RXVKRXOGOLPLWWKHIUHTXHQF\UDLVLQJRIFRPSUHVVRU
2. Reducing Frequency
,I&gt;,)UHTXHQF\5HGXFLQJ3KDVH&amp;XUUHQW@,3KDVH&amp;XUUHQW&gt;,3RZHU7XUQ2II3KDVH&amp;XUUHQW@WKHFRPSUHVVRUVKDOOFRQWLQXHWRUHGXFHIUHTXHQF\WLOOWKHORZHVWIUHTXHQF\
OLPLWRURXWRIWKHFRQGLWLRQRIUHGXFLQJIUHTXHQF\
3. Power turn-off
,I&gt;, 3KDVH&amp;XUUHQW@&gt;, 3RZHU7XUQ2II3KDVH&amp;XUUHQW@WKHFRPSUHVVRUSKDVHFXUUHQWVKDOOVWRSZRUNLQJIRURYHUFXUUHQWSURWHFWLRQLI&gt;, 3KDVH&amp;XUUHQW@&gt;, )UHTXHQF\5HGXFLQJ
3KDVH&amp;XUUHQW@DQGWKHFRPSUHVVRUKDYHVWRSSHGZRUNLQJIRUPLQWKHPDFKLQHVKDOOEHDOORZHGWRRSHUDWH
,IWKHRYHUFXUUHQWSURWHFWLRQRIFRPSUHVVRUSKDVHFXUUHQWFRQWLQXRXVO\RFFXUVIRUVL[WLPHVLWVKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG
\RXVKRXOGSUHVVWKH212))EXWWRQWRUHVXPH'XULQJWKHSURFHVVRIUXQQLQJLIWKHUXQQLQJWLPHRIFRPSUHVVRUH[FHHGVWKH&gt;W Clearing Time of
&amp;RPSUHVVRU3KDVH&amp;XUUHQW7LPHV@WKHRYHUFXUUHQWSURWHFWLRQLVFOHDUHGWRUHFRXQW
26
7HFKQLFDO,QIRUPDWLRQ
Service Manual
(12) Starting-up Failure Protection for Compressor
6WRSWKHFRPSUHVVRUDIWHULWVVWDUWLQJXSIDLOVUHVWDUWLWDIWHUVLIWKHIDXOWGRHVQ&para;WVKRZVDQGLIWKH\DUHDOOIDLOLQJIRUWKHVXFFHVVLYHVWDUW
WLPHVLWVKDOOEHUHSRUWHGDV6WDUWLQJXS)DLOXUHDQGWKHQUHVWDUWXSLWDIWHUPLQ:KHQLWVWLOOQRWEHDEOHWRRSHUDWHWKURXJKFDUU\RXWWKH
DERYHSURFHVVIRUWLPHVLWLVDYDLODEOHLISUHVV212))$QGWKHFRPSUHVVRUVKRXOGEHFOHDUHGWKHWLPHVDIWHULWUXQPLQ
(13) Out-of-Step Protection for Compressor
7KHRXWRIVWHSSURWHFWLRQVLJQDOVKRXOGEHGHWHFWHGLPPHGLDWHO\DIWHUVWDUWLQJXSFRPSUHVVRUDQGRQFH&iquest;QGWKHRXWRIVWHSSURWHFWLRQVLJQDO
WKHRXWRIVWHSSURWHFWLRQVKDOOEHVWRSSHGLILWFDQUXQIRUODVWLQJSRZHUWXUQRIIPLQWKHPDFKLQHVKDOOEHDOORZHGWRRSHUDWH,ILWVWLOOFDQ&para;W
UXQDXWRPDWLFDOO\ZKHQWKHRXWRIVWHSSURWHFWLRQIRUFRPSUHVVRUKDSSHQVWRVWRSZRUNLQJIRUWLPHVLQVXFFHVVLRQLWQHHGVWRSUHVV212))
WRRSHUDWH$QGLIWKHUXQQLQJWLPHLVPRUHWKDQPLQWKHSRZHUWXUQRIIWLPHVIRURXWRIVWHSSURWHFWLRQVKDOOEHFOHDUHGDQGUHFRXQWHG
(14) Voltage Abnormity Protection for DC Bus
7RGHWHFWYROWDJHDEQRUPLW\SURWHFWLRQIRUGFEXVDIWHUFRPSOHWLQJWKHSUHFKDUJH
1.Over-High Voltage Protection for DC Bus:
,ILWIRXQGWKH'&amp;EXVYROWDJH8DC!&gt;8'&amp;-LHNXDQJFKXQ3URWHFWLRQ@WXUQRII3)&amp;DQGVWRSWKHFRPSUHVVRUDWRQFHDQGLWVKDOOVKRZWKH'&amp;RYHUKLJK
YROWDJHIDLOXUHLWVKRXOGFOHDURXWWKHIDLOXUHZKHQWKHYROWDJHGURSSHGWR8DC&gt;8'&amp;-LHNXDQJFKXQ5HFRYHU\@DQGWKHFRPSUHVVRUVWRSSHGIRUPLQ
2.Over-Low Voltage Protection for DC Bus:
,I LW IRXQG WKH '&amp; EXV YROWDJH 8DC &gt;8'&amp; :DQWXRFKXQ 3URWHFWLRQ@ WXUQ RII 3)&amp; DQG VWRS WKH FRPSUHVVRU DW RQFH DQG LW VKDOO VKRZ WKH '&amp; RYHUORZ
YROWDJHDQGLWVKRXOGFOHDURXWWKHIDLOXUHZKHQWKHYROWDJHUDLVHGWR8DC!&gt;8'&amp;:DQWXRFKXQ5HFRYHU\@DQGWKHFRPSUHVVRUVWRSSHGIRUPLQ
3.To detect voltage abnormity protect for DC bus when getting electricity:
,ILWIRXQGWKH'&amp;EXVYROWDJH8DC!&gt;8'&amp;&sup2;&sup2;2YHU+LJK9ROWDJH@WXUQRIIWKHUHOD\DWRQFHDQGVKRZVYROWDJHDEQRUPLW\IDLOXUHIRU'&amp;%XV$QGWKH
IDLOXUHFDQ&para;WUHFRYHUH[FHSWWREUHDNRIIDQGJHWWKHHOHFWULFLW\
(15)Abnormity Protection for Four-way Valve
8QGHU WKH PRGHO RI KHDWLQJ RSHUDWLRQ LQ JRRG FRQGLWLRQ WKH FRPSUHVVRU LV GHWHFWHG &gt;7,QQHU 7XEH &lt;(TInner Ring-T$EQRUPLW\ 7HPSHUDWXUH 'LIIHUHQFH )RU )RXU:D\ 9DOYH
5HYHUVLRQ@GXULQJWKHUXQQLQJLWVKRXOGEHUHJDUGHGDVIRXUZD\YDOYHUHYHUVLRQDEQRUPLW\$QGWKHQLWFDQUXQLIVWRSWKHUHYHUVLRQDEQRUPLW\
SURWHFWLRQIRUIRXUZD\YDOYHPLQDQGLILWVWLOOFDQ&para;WUXQZKHQWKHUHYHUVLRQDEQRUPLW\SURWHFWLRQIRUIRXUZD\YDOYHKDSSHQVWRVWRSZRUNLQJ
IRUWLPHVLQVXFFHVVLRQLWLVDYDLODEOHLISUHVVHV212))
$WWHQWLRQWKHSURWHFWLRQVKDOOEHVKLHOGHGGXULQJWKHWHVWLQJPRGHDQGGHIURVWLQJSURFHVVDQGLWVKDOOEHFOHDUHGRXWWKHIDLOXUHDQGLWVWLPHV
LPPHGLDWHO\ZKHQWXUQLQJRIIRUGHOLYHULQJZLQGFRROLQJGHKXPLGLI\LQJPRGHFRQYHUVHGWKHLQYHUWHGPRGHGRQ&para;WFOHDURXWWKHIDLOXUHZKHQLW
FDQ&para;WUHFRYHUWRRSHUDWH
(16) PFC Protection
$IWHUVWDUWXSWKH3)&amp;LWVKRXOGGHWHFWWKHSURWHFWLRQVLJQDORI3)&amp;LPPHGLDWHO\XQGHUWKHFRQGLWLRQRI3)&amp;SURWHFWLRQLWVKRXOGWXUQRIIWKH
3)&amp;DQGFRPSUHVVRUDWRQHWLPH
,WVKRZVWKHIDLOXUHLVFOHDUHGRXWLI3)&amp;3URWHFWLRQVWRSSHGZRUNLQJPLQDQGUHFRYHUVWRUXQDXWRPDWLFDOO\
,ILWVWLOOFDQ&para;WUXQZKHQLWRFFXUV3)&amp;SURWHFWLRQIRUWLPHVLQVXFFHVVLRQLWLVDYDLODEOHLISUHVVHV212))DQGFOHDUWKH3)&amp;3URWHFWLRQ
WLPHVZKHQVWDUWXS3)&amp;IRUPLQ
(17) Failure Detection for Sensor
2XWGRRU$PELHQW6HQVRUGHWHFWWKHIDLOXUHRIVHQVRUDWDOOWLPHV
2XWGRRU7XEH6HQVRU&lt;RXVKRXOGQRWGHWHFWWKHIDLOXUHRIRXWGRRUWXEHVHQVRUZLWKLQPLQXWHVKHDWLQJ
RSHUDWLRQFRPSUHVVRUH[FHSWWKHGHIURVWLQJDQG\RXFRXOGGHWHFWLWDWRWKHUWLPH
2XWGRRU([KDXVW6HQVRU
D7KHFRPSUHVVRURQO\GHWHFWWKHVHQVRUIDLOXUHDIWHULWVWDUWXSPLQLQQRUPDOPRGH
E,WVKRXOGGHWHFWWKHH[KDXVWVHQVRUIDLOXUHLPPHGLDWHO\LQWKHWHVWLQJPRGH
0RGXOH7HPSHUDWXUH6HQVRU
D6KRUW&amp;LUFXLW'HWHFWLRQWKHFRPSUHVVRUVKRXOGEHGHWHFWHGLPPHGLDWHO\ZKHQWKHPRGXOHWHPSHUDWXUH
VHQVRURFFXUVVKRUWFLUFXLWV
E2SHQ&amp;LUFXLW'HWHFWLRQWKHFRPSUHVVRUVKRXOGEHGHWHFWHGRQRSHQFLUFXLWZKHQLWUXQVPLQLWQHHGQ&para;WV
DYRLGLQJWKHPRGXOHRYHUKHDWHG
F'HWHFWWKHVHQVRUIDLOXUHDWDOOWLPHVLQWKHWHVWLQJPRGH
5. Disposal for Sensor Protection
:KHQWKHVKRUWFLUFXLWRIVHQVRULVGHWHFWHGZLWKLQV,WLVUHJDUGHGDVWKHWHPSHUDWXUHRIVHQVRURYHUKLJKRULQ&iquest;QLWHO\KLJKDQGQRZ
DFFRUGLQJWRWKHRYHUKLJKVHQVRUWKHPDFKLQHVKRXOGFDUU\RXWWKHFRUUHVSRQGLQJSURWHFWLRQWRVWRSZRUNLQJDQGVKRZWKHFRUUHVSRQGLQJ
WHPSHUDWXUHVKXWGRZQSURWHFWLRQDQGVHQVRUIDLOXUHDWWKHVDPHWLPHIRUH[DPSOHWKHFRPSUHVVRUVWRSVLPPHGLDWHO\ZKHQWKHRXWGRRUWXEH
VHQVRUVKRUWFLUFXLWDQGWKHPDFKLQHVKDOOVKRZWKHRYHUORDGSURWHFWLRQDQGRXWGRRUWXEHVHQVRUIDLOXUH
:KHQWKHRSHQFLUFXLWRIVHQVRULVGHWHFWHGZLWKLQV7KHSURWHFWLRQVKDOOEHVWRSSHGDQGLWVKDOOVKRZWKHFRUUHVSRQGLQJVHQVRUIDLOXUH
7HFKQLFDO,QIRUPDWLRQ
27
Service Manual
(OHFWULF+HDWLQJ)XQFWLRQRI&amp;KDVVLV
:KHQ7RXWGRRUDPE)WKHHOHFWULFKHDWLQJRIFKDVVLVZLOORSHUDWH
:KHQ7RXWGRRUDPE!)WKHHOHFWULFKHDWLQJRIFKDVVLVZLOOVWRSRSHUDWLRQ
:KHQ)7RXWGRRUDPE)WKHHOHFWULFKHDWLQJRIFKDVVLVZLOONHHSRULJLQDOVWDWXV
(OHFWULF+HDWLQJ)XQFWLRQRI&amp;RPSUHVVRU
:KHQ7RXWGRRUDPE)FRPSUHVVRUVWRSVRSHUDWLRQZKLOHWKHHOHFWULFKHDWLQJRIFRPSUHVVRUVWDUWVRSHUDWLRQ
:KHQ7RXWGRRUDPE!)WKHHOHFWULFKHDWLQJRIFRPSUHVVRUVWRSVRSHUDWLRQ
:KHQ)7RXWGRRUDPE)WKHHOHFWULFKHDWLQJRIFRPSUHVVRUZLOONHHSRULJLQDOVWDWXV
28
7HFKQLFDO,QIRUPDWLRQ
Service Manual
Part ė : Installation and Maintenance
7. Notes for Installation and Maintenance
Safety Precautions:
Important!
Please read the safety precautions carefully before
installation and maintenance.
The following contents are very important for installation
and maintenance.
Please follow the instructions below.
Ɣ7KHLQVWDOODWLRQRUPDLQWHQDQFHPXVWDFFRUGZLWKWKH
instructions.
Ɣ&amp;RPSO\ZLWKDOOQDWLRQDOHOHFWULFDOFRGHVDQGORFDO
electrical codes.
Ɣ3D\DWWHQWLRQWRWKHZDUQLQJVDQGFDXWLRQVLQWKLV
manual.
Ɣ$OOLQVWDOODWLRQDQGPDLQWHQDQFHVKDOOEHSHUIRUPHGE\
GLVWULEXWRURUTXDOL&iquest;HGSHUVRQ
Ɣ$OOHOHFWULFZRUNPXVWEHSHUIRUPHGE\DOLFHQVHG
technician according to local regulations and the
instructions given in this manual.
Ɣ%HFDXWLRQGXULQJLQVWDOODWLRQDQGPDLQWHQDQFH3URKLELW
incorrect operation to prevent electric shock, casualty and
other accidents.
Warnings
Electrical Safety Precautions:
1. Cut off the power supply of air conditioner before
checking and maintenance.
2. The air condition must apply specialized circuit and
prohibit share the same circuit with other appliances.
3. The air conditioner should be installed in suitable
location and ensure the power plug is touchable.
4. Make sure each wiring terminal is connected firmly
during installation and maintenance.
5. Have the unit adequately grounded. The grounding wire
can’t be used for other purposes.
6. Must apply protective accessories such as protective
boards, cable-cross loop and wire clip.
7. The live wire, neutral wire and grounding wire of power
supply must be corresponding to the live wire, neutral
wire and grounding wire of the air conditioner.
8. The power cord and power connection wires can’t be
pressed by hard objects.
9. If power cord or connection wire is broken, it must be
UHSODFHGE\DTXDOL&iquest;HGSHUVRQ
Installation and Maintenance
10. If the power cord or connection wire is not long enough,
please get the specialized power cord or connection wire
from the manufacture or distributor. Prohibit prolong the wire
by yourself.
11. For the air conditioner without plug, an air switch must
be installed in the circuit. The air switch should be all-pole
parting and the contact parting distance should be more than
1/8 inch.
12. Make sure all wires and pipes are connected properly and
the valves are opened before energizing.
13. Check if there is electric leakage on the unit body. If yes,
please eliminate the electric leakage.
5HSODFHWKHIXVHZLWKDQHZRQHRIWKHVDPHVSHFL&iquest;FDWLRQ
if it is burnt down; don’t replace it with a cooper wire or
conducting wire.
15. If the unit is to be installed in a humid place, the circuit
breaker must be installed.
Installation Safety Precautions:
1. Select the installation location according to the requirement of this manual.(See the requirements in installation
part)
2. Handle unit transportation with care; the unit should not
be carried by only one person if it is more than 44.09lb.
:KHQ LQVWDOOLQJ WKH LQGRRU XQLW DQG RXWGRRU XQLW D VXI&iquest;FLHQW&iquest;[LQJEROWPXVWEHLQVWDOOHGPDNHVXUHWKHLQVWDOODWLRQ
VXSSRUWLV&iquest;UP
4. Ware safety belt if the height of working is above 78 3/4
inch.
5. Use equipped components or appointed components during installation.
0DNHVXUHQRIRUHLJQREMHFWVDUHOHIWLQWKHXQLWDIWHU&iquest;Qishing installation.
Refrigerant Safety Precautions:
$YRLG FRQWDFW EHWZHHQ UHIULJHUDQW DQG &iquest;UH DV LW JHQHUDWHV
poisonous gas; Prohibit prolong the connection pipe by
welding.
$SSO\ VSHFL&iquest;HG UHIULJHUDQW RQO\ 1HYHU KDYH LW PL[HG ZLWK
any other refrigerant. Never have air remain in the refrigerant
line as it may lead to rupture or other hazards.
3. Make sure no refrigerant gas is leaking out when installation
is completed.
,IWKHUHLVUHIULJHUDQWOHDNDJHSOHDVHWDNHVXI&iquest;FLHQWPHDVXUH
to minimize the density of refrigerant.
5. Never touch the refrigerant piping or compressor without
wearing glove to avoid scald or frostbite.
,PSURSHULQVWDOODWLRQPD\OHDGWR&iquest;UHKD]DUGH[SORVLRQ
electric shock or injury.
29
Service Manual
Main Tools for Installation and Maintenance
1. Level meter, measuring tape
2. Screw driver
3. Impact drill, drill head, electric drill
30
4. Electroprobe
5. Universal meter
6. Torque wrench, open-end wrench, inner
hexagon spanner
7. Electronic leakage detector
8. Vacuum pump
9. Pressure meter
10. Pipe pliers, pipe cutter
11. Pipe expander, pipe bender
12. Soldering appliance, refrigerant container
Installation and Maintenance
Service Manual
8. Installation
At least 5 8/9 inch
Space to the ceiling
8.1 Installation Dimension Diagram
Space to the wall
Space to the wall
At least 5 8/9 inch
At least 98 3/7 inch
ch
8 in
t 11
eas
At l
ac
et
At l
ot
eas
he
t 11
Sp
Installation and Maintenance
n
ctio
tru
ce
a
Sp
to
the
11
ast
4/5
s
ob
inch
e
At l
wa
ll
4/5
inch
to
the
s
ob
ast
le
At
78
Drainage pipe
o
cti
tru
e
ac
At least 19 2/3 inch
Sp
Space to the obstruction
Sp
ac
et
ot
he
ob
str
uc
tio
Space to the floor
n
At least 5 8/9 inch
h
nc
/5 i
Sp
3
ac
At l
eas
et
t 19
ot
2/3
he
inch
ob
str
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n
31
Service Manual
Installation procedures
Start installation
Preparation before installation
Read the requirements
for electric connection
select installation
location
Select indoor unit
installation location
Prepare tools
Select outdoor unit
installation location
Install the support of outdoor unit
(select it according to the actual situation)
Install wall-mounting
frame, drill wall holes
Connect pipes of indoor
unit and drainage pipe
Fix outdoor unit
Connect wires of indoor unit
Install drainage joint of outdoor unit
(only for cooling and heating unit)
Bind up pipes and
hang the indoor unit
Make the bound pipes pass
through the wall hole and then
connect outdoor unit
Connect pipes of outdoor unit
Connect wires of outdoor unit
Neaten the pipes
Vacuum pumping and leakage detection
Check after installation and test operation
Finish installation
Note: this flow is only for reference; please find the more detailed installation steps in this section.
32
Installation and Maintenance
Service Manual
8.2 Installation Parts-checking
No.
1
2
Name
,QGRRUXQLW
2XWGRRUXQLW
No.
8
9
3
Connection pipe
10
4
Drainage pipe
:DOOPRXQWLQJ
frame
Connecting
cable(power cord)
Wall pipe
11
5
6
7
12
13
Name
6HDOLQJJXP
Wrapping tape
6XSSRUWRIRXWGRRU
XQLW
)L[LQJVFUHZ
'UDLQDJHSOXJFRROLQJ
DQGKHDWLQJXQLW
2ZQHU&para;VPDQXDO
remote controller
Note:
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'RQ
WXVHXQTXDOL&iquest;HGSRZHUFRUG
8.3 Selection of Installation Location
1. Basic Requirement:
,QVWDOOLQJWKHXQLWLQWKHIROORZLQJSODFHVPD\FDXVH
PDOIXQFWLRQ,ILWLVXQDYRLGDEOHSOHDVHFRQVXOWWKHORFDOGHDOHU
7KHSODFHZLWKVWURQJKHDWVRXUFHVYDSRUV&Agrave;DPPDEOHRU
H[SORVLYHJDVRUYRODWLOHREMHFWVVSUHDGLQWKHDLU
7KH SODFH ZLWK KLJKIUHTXHQF\ GHYLFHV VXFK DV ZHOGLQJ
PDFKLQHPHGLFDOHTXLSPHQW
7KHSODFHQHDUFRDVWDUHD
7KHSODFHZLWKRLORUIXPHVLQWKHDLU
7KHSODFHZLWKVXOIXUHWHGJDV
2WKHUSODFHVZLWKVSHFLDOFLUFXPVWDQFHV
2. Indoor Unit:
7KHUHVKRXOGEHQRREVWUXFWLRQQHDUDLULQOHWDQGDLURXWOHW
6HOHFWDORFDWLRQZKHUHWKHFRQGHQVDWLRQZDWHUFDQEH
GLVSHUVHGHDVLO\DQGZRQ
WDIIHFWRWKHUSHRSOH
6HOHFWDORFDWLRQZKLFKLVFRQYHQLHQWWRFRQQHFWWKH
RXWGRRUXQLWDQGQHDUWKHSRZHUVRFNHW
6HOHFWDORFDWLRQZKLFKLVRXWRIUHDFKIRUFKLOGUHQ
7KHORFDWLRQVKRXOGEHDEOHWRZLWKVWDQGWKHZHLJKWRI
LQGRRUXQLWDQGZRQ
WLQFUHDVHQRLVHDQGYLEUDWLRQ
7KHDSSOLDQFHPXVWEHLQVWDOOHGLQFKDERYH&Agrave;RRU
'RQ
WLQVWDOOWKHLQGRRUXQLWULJKWDERYHWKHHOHFWULF
appliance.
7KHDSSOLDQFHVKDOOQRWEHLQVWDOOHGLQWKHODXQGU\
3. Outdoor Unit:
6HOHFWDORFDWLRQZKHUHWKHQRLVHDQGRXW&Agrave;RZDLUHPLWWHGE\
WKHRXWGRRUXQLWZLOOQRWDIIHFWQHLJKERUKRRG
7KHORFDWLRQVKRXOGEHZHOOYHQWLODWHGDQGGU\LQZKLFKWKH
RXWGRRU XQLW ZRQ
W EH H[SRVHG GLUHFWO\ WR VXQOLJKW RU VWURQJ
wind.
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RXWGRRUXQLW
0DNHVXUHWKDWWKHLQVWDOODWLRQIROORZVWKHUHTXLUHPHQWRI
installation dimension diagram.
6HOHFWDORFDWLRQZKLFKLVRXWRIUHDFKIRUFKLOGUHQDQGIDU
DZD\ IURP DQLPDOV RU SODQWV,I LW LV XQDYRLGDEOH SOHDVH DGG
IHQFHIRUVDIHW\SXUSRVH
Installation and Maintenance
8.4 Electric Connection Requirement
1. Safety Precaution
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WKHXQLW
$FFRUGLQJ WR WKH ORFDO VDIHW\ UHJXODWLRQV XVH TXDOLILHG
SRZHUVXSSO\FLUFXLWDQGDLUVZLWFK
0DNHVXUHWKHSRZHUVXSSO\PDWFKHVZLWKWKHUHTXLUHPHQW
RI DLU FRQGLWLRQHU 8QVWDEOH SRZHU VXSSO\ RU LQFRUUHFW ZLULQJ
PD\UHVXOWLQHOHFWULFVKRFN&iquest;UHKD]DUGRUPDOIXQFWLRQ3OHDVH
LQVWDOO SURSHU SRZHU VXSSO\ FDEOHV EHIRUH XVLQJ WKH DLU
conditioner.
Air-conditioner
18/24K
$LUVZLWFKFDSDFLW\
25A
3URSHUO\FRQQHFWWKHOLYHZLUHQHXWUDOZLUHDQGJURXQGLQJ
ZLUHRISRZHUVRFNHW
%HVXUHWRFXWRIIWKHSRZHUVXSSO\EHIRUHSURFHHGLQJDQ\
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VKDOOFRQWDLQWKHVXEVWDQFHRIWKHIROORZLQJ,IWKHVXSSO\FRUGLV
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DJHQWRUVLPLODUO\TXDOL&iquest;HGSHUVRQVLQRUGHUWRDYRLGDKD]DUG
7KH WHPSHUDWXUH RI UHIULJHUDQWFLUFXLWZLOOEHKLJK SOHDVH
NHHSWKHLQWHUFRQQHFWLRQFDEOHDZD\IURPWKHFRSSHUWXEH
2. Grounding Requirement:
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EH SURSHUO\ JURXQGLQJ ZLWK VSHFLDOL]HG JURXQGLQJ GHYLFH
E\ D SURIHVVLRQDO 3OHDVH PDNH VXUH LW LV DOZD\V JURXQGHG
HIIHFWLYHO\RWKHUZLVHLWPD\FDXVHHOHFWULFVKRFN
7KH\HOORZJUHHQZLUHLQDLUFRQGLWLRQHULVJURXQGLQJZLUH
ZKLFKFDQ
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7KH JURXQGLQJ UHVLVWDQFH VKRXOG FRPSO\ ZLWK QDWLRQDO
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accessible.
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wiring.
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WKH IROORZLQJ WDEOH$LU VZLWFK VKRXOG EH LQFOXGHG PDJQHW
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8.5 Installation of Indoor Unit
1. Choosing Installation Iocation
5HFRPPHQG WKH LQVWDOODWLRQ ORFDWLRQ WR WKH FOLHQW DQG WKHQ
FRQ&iquest;UPLWZLWKWKHFOLHQW
2. Install Wall-mounting Frame
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KRUL]RQWDOSRVLWLRQZLWKWKHOHYHOPHWHUDQGWKHQSRLQWRXWWKH
VFUHZ&iquest;[LQJKROHVRQWKHZDOO
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VSHFLILFDWLRQ RI GULOO KHDG VKRXOG EH WKH VDPH DV WKH SODVWLF
H[SDQVLRQSDUWLFOHDQGWKHQ&iquest;OOWKHSODVWLFH[SDQVLRQSDUWLFOHV
33
Service Manual
LQWKHKROHV
)L[WKHZDOOPRXQWLQJIUDPHRQWKHZDOOZLWKWDSSLQJVFUHZV
67;7$DQGWKHQFKHFNLIWKHIUDPHLV&iquest;UPO\LQVWDOOHGE\
SXOOLQJ WKH IUDPH ,I WKH SODVWLF H[SDQVLRQ SDUWLFOH LV ORRVH
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3. Install Wall-mounting Frame
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RI RXWOHW SLSH7KH SRVLWLRQ RI SLSLQJ KROH VKRXOG EH D OLWWOH
ORZHUWKDQWKHZDOOPRXQWHGIUDPH$VVKRZLQ)LJ
Wall
Level meter
Mark in the middle of it
Space
to the
wall
above
6inch
Wall
5. Connect the Pipe of Indoor Unit
$LPWKHSLSHMRLQWDWWKHFRUUHVSRQGLQJEHOOPRXWK$VVKRZ
LQ)LJ
3UHWLJKWHQLQJWKHXQLRQQXWZLWKKDQG
$GMXVWWKHWRUTXHIRUFHE\UHIHUULQJWRWKHIROORZLQJVKHHW
3ODFH WKH RSHQHQG ZUHQFK RQ WKH SLSH MRLQW DQG SODFH WKH
WRUTXH ZUHQFK RQ WKH XQLRQ QXW7LJKWHQ WKH XQLRQ QXW ZLWK
WRUTXHZUHQFK$VVKRZLQ)LJ
:UDS WKH LQGRRU SLSH DQG MRLQW RI FRQQHFWLRQ SLSH ZLWK
LQVXODWLQJSLSHDQGWKHQZUDSLWZLWKWDSH$VVKRZLQ)LJ
Space
to the
wall
above
6inch
Left
Φ2 1/6(2 3/4)
Rear piping hole
Right
Φ2 1/6(2 3/4)
Rear piping hole
)LJ
Open-end
wrench
Union nut
Pipe joint
Union nut
Pipe
)LJ
Indoor pipe
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Indoor
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)LJ
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)LJ
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2 1/6 or
(2 3/4)inch
5-10&deg;
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)LJ
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11.10~14.75
22.12~29.50
33.19~40.56
44.24~47.94
51.32~55.31
6. Install Drain Hose
&amp;RQQHFWWKHGUDLQKRVHWRWKHRXWOHWSLSHRILQGRRUXQLW$V
VKRZLQ)LJ
%LQGWKHMRLQWZLWKWDSH$VVKRZLQ)LJ
4. Outlet Pipe
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Drain hose
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pipe
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Left
Right
Cut off
the hole
34
Right
Rear right
Rear left
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Installation and Maintenance
Service Manual
7. Connect Wire of Indoor Unit
8. Bind up Pipe
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IURPWKHIURQW$VVKRZLQ)LJ
Indoor and
outdoor power cord
Indoor unit
Gas
pipe
)LJ
Liquid
pipe
Band
Drain hose
Connection pipe
connection wire sleeve
Drain hose
Band
)LJ
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Indoor power cord
Note:
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winding.
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L1’
S
L2’
G
green
white black red
(brown) (yellow(blue)
green)
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)LJ
3XWZLULQJFRYHUEDFNDQGWKHQWLJKWHQWKHVFUHZ
&amp;ORVHWKHSDQHO
Note:
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connected by a professional.
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FRQWDFWWKHVXSSOLHUIRUDQHZRQH$YRLGH[WHQGLQJWKHZLUHE\
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Installation and Maintenance
9. Hang the Indoor Unit
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Indoor
Wall pipe
Outdoor
)LJ
Sealing gum
Upper hook
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Lower hook of
wall-mounting frame
Note:
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EORFNLQJ
35
Service Manual
5HIHUWRWKHIROORZLQJWDEOHIRUZUHQFKPRPHQWRIIRUFH:
8.6 Installation of Outdoor Unit
1. Fix the Support of Outdoor Unit(Select it according to
the actual installation situation)
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expansion screws.
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RXWGRRUXQLW
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screws are needed.
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11.10~14.75
22.12~29.50
33.19~40.56
44.24~47.94
51.32~55.31
5. Connect Outdoor Electric Wire
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Handle
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L1’
S
L2’
green
white
red
(yellow- (blue) black (brown)
green)
L2
Indoor unit connection
At least 1 1/6 inch above the floor
Drain hose
Chassis
Outdoor drain joint
)LJ
)LJ
2. Install Drain Joint(only for cooling and heating unit)
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4. Connect Indoor and Outdoor Pipes
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G
black white green
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6. Neaten the Pipes
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10cm.
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)LJ
The drain hos
can't raise
upwards
Wall
)LJ
Liquid pipe
Liquid
valve
Pipe joint
)LJ
gas pipe
gas valve
Drain hose
Union nut
)LJ
3UHWLJKWHQLQJWKHXQLRQQXWZLWKKDQG
7LJKWHQWKHXQLRQQXWZLWKWRUTXHZUHQFK
36
U-shaped curve
Note:
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Installation and Maintenance
Service Manual
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8.8 Check after Installation and Test
Operation
1. Check after Installation
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installation.
The drain hose can't be fluctuant
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The drain hose
can't be fluctuant
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can't be placed
in water
The water
outlet can't be
fluctuant
2
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4
8.7 Vacuum Pumping and Leak Detection
1. Use Vacuum Pump
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WKHSUHVVXUHGHFUHDVHVWKHUHPD\EHOHDNDJH
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Liquid valve
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Charging vent
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spanner
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emit noise.
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water dripping.
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water dripping.
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9
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Close
Open
2. Test Operation
(1) Preparation of test operation
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controller to start operation.
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Installation and Maintenance
37
Service Manual
9. Maintenance
9.1 Precautions before Maintenance
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WKHFDSDFLWRUVDQGLWQHHGVPRUHWKDQPLQWRUHGXFHWKHYROWDJHWRVDIHW\YDOXH7RXFKLQJWKHHOHFWURO\WLFFDSDFLWRUZLWKLQPLQDIWHU
FXWWLQJWKHSRZHUZLOOFDXVHHOHFWULFVKRFN,IPDLQWHQDQFHLVQHHGHGIROORZWKHVWHSVEHORZWRGLVFKDUJHHOHFWULFLW\RIHOHFWURO\WLFFDpacitor after power off.
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38
Installation and Maintenance
Service Manual
9.2 Error Code List
13
Malfunction
of zero-cross
derection
U8
Installation and Maintenance
Off 3s
and blink
17 times
1.Power supply is
abnormal
The complete unit stops
2.Detection circuit of indoor
control mainboard is
abnormal
39
Service Manual
Complete unit
current
detection
malfunction
U5
Off 3s
and blink
13 times
Off 3s
and blink
once
(during
blinking,
ON 10s
and Off
05s)
40
Defrosting will occur in
heating mode.Compressor
will operate while indoor
fan will stop.
It’s the normal state
Installation and Maintenance
Service Manual
Installation and Maintenance
41
Service Manual
9.3 Troubleshooting for Main Malfunction
Ɣ,QGRRUXQLW
1. Malfunction of Temperature Sensor F1, F2
Troubleshooting for
F1,F2 malfunction
Is
the wiring terminal between the
temperature sensor and the controller
loosened or poorly contacted?
yes
Insert the temperature
sensor tightly
no
no
Is there short circuit due to trip-over of
the parts?
Is malfunction
eliminated
yes
Make the parts upright
no
no
Is the
temperature sensor normal according
to the Resistance
Table?
Is malfunction
eliminated
yes
no
Replace it with a
temperature sensor
with the same model
yes
no
Is malfunction
removed
yes
Replace the mainboard
with the same model.
yes
End
42
Installation and Maintenance
Service Manual
2. Malfunction of Blocked Protection of IDU Fan Motor H6
Start
Turn the fan blades
by hand under
power-off condition
Whether the fan blades
can run smoothly?
Yes
Turn unit on
to check whether the
malfunction is
eliminated.
No
Under power-off condition,
check whether the wiring terminal
between indoor fan and main
board is loose.
No
Adjust the motor and blade
assembly so that rotor can run
smoothly.
No
Reinsert the wiring
terminal of indoor fan.
Yes
Turn unit on
to check whether the
malfunction is
eliminated.
No
Connect power and restart the unit.
Test whether the voltage between terminal 1 and terminal 2
of motor interface is within 280~310VDC.
No
Yes
It's the malfunction of main board.
Replace a new main board that is
of the same model.
Yes
Yes
Then check whether the voltage
between terminal 2 and terminal 3
of the motor interface is 15VDC.
No
It's the malfunction of main board.
Replace a new main board that is
of the same model.
No
It's the malfunction of main board.
Replace a new main board that is
of the same model.
Yes
Then check whether there is voltage
between terminal 2 and terminal 4
of the motor interface.
Yes
It's the malfunction of motor.
Replace a new motor that is
of the same model.
Installation and Maintenance
End
43
Service Manual
3. Malfunction of Protection of Jumper Cap C5
Troubleshooting for C5
malfunction
Is there jumper cap on the
mainboard?
no
Appearance of
the jumper cap
Assemble the jumper
cap with the same
model
yes
Is malfunction
eliminated
no
Is
the jumper cap inserted
correctly and
tightly ?
no
Insert the
jumper cap
tightly
yes
no
Is malfunction
eliminated
yes
Replace the jumper cap
with the same model
yes
Is malfunction
eliminated
yes
no
Replace the mainboard
with the same model.
End
44
Installation and Maintenance
Service Manual
4. Communication malfunction E6
Start
Cut off power supply. Check if
connection line of IDU and ODU
and the wire inside electric box
are correctly connected.
Correct connection?
Connect the line
according to
wiring diagram.
no
Malfunction eliminated?
yes
no
Main board matches
with display board? Main board of
IDU matches with that of ODU?
no
Match correctly
according to product
specification
Malfunction eliminated?
yes
Malfunction eliminated?
yes
yes
no
yes
Communication cord is damaged?
no
Replace
communication
cord
no
Replace IDU's
main board
yes
Malfunction eliminated?
no
Replace ODU's
main board.
yes
End
Installation and Maintenance
45
Service Manual
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Key detection point
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Test 1
Test 2
Test 3
Test 4
Test 5
Test 6
Test 7
Test 8
Test 9
Test 10
Test 11
Test 12
Test 13
46
Test point
Between A and C
Between B and C
Between D and E
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capacitor C47
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capacitor C60
%RWKHQGVRIHOHFWURO\WLF
capacitor C73
Between S and T
Related elements
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Installation and Maintenance
Service Manual
1.Capacity charging malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit)
Main detection point:
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Ɣ,VUHDFWRU/ZHOOFRQQHFWHG&quot;,VFRQQHFWLRQZLUHORRVHQHGRUSXOORXW&quot;,VUHDFWRU/GDPDJHG&quot;
0DOIXQFWLRQGLDJQRVLVSURFHVV
Turn on the unit
and wait 1 minute
Use DC voltmeter
to measure the
voltage on the two
ends of electrolytic
capacitor
Voltage higher than 200V?
Y
Fault with the voltage
testing circuit on
control panel AP1
Replace the control
panel AP1
N
Measure the AC voltage between
terminalL andN on wiring board
XT(power supply)
Voltage within
210VAC~250VAC?
N
Shut down the power
and repair the power
supply to restore the
range
210VAC~250VAC
power on and
restart the unit
If the fault is
eliminated?
Y
Y
or
Shut down the power and wait 20nutes;
mi
use DC voltmeter to measure the voltage
on the two ends of capacitor (test3), until
the voltage is lower than 20V
N
Check the
connection of reactor
(L in the Electrical
Wiring Diagram)
If the wiring of
reactor Lis normal?
N
Connect the reactor
Laccording to Electrical Wiring Diagram correctly
Re-energize and
turn on the unit
If the fault is
eliminated?
Y
Y
Replace the control
panel AP1
N
End
Installation and Maintenance
47
Service Manual
2.IPM protection, desynchronizing malfunction, phase current of compressor is overcurrent (AP1 below is control board
of outdoor unit)
Main detection point:
Ɣ,IFRQWUROERDUG$3DQGFRPSUHVVRU&amp;203LVZHOOFRQQHFWHG&quot;,IWKH\DUHORRVHQHG&quot;,IWKHFRQQHFWLRQVHTXHQFHLVFRUUHFW&quot;
Ɣ,VYROWDJHLQSXWLQWKHQRUPDOUDQJH7HVWWKHYROWDJHEHWZHHQ/1RIZLULQJERDUG;7E\'&amp;YROWDJHPHWHU&quot;
Ɣ,IFRLOUHVLVWDQFHRIFRPSUHVVRULVQRUPDO&quot;,VFRPSUHVVRUFRLOLQVXODWLQJWRFRSSHUSLSHZHOO&quot;
Ɣ,IWKHZRUNORDGRIXQLWLVKHDY\&quot;,IUDGLDWLQJRIXQLWLVZHOO&quot;
Ɣ,IWKHUHIULJHUDQWFKDUJLQJLVDSSURSULDWH&quot;
0DOIXQFWLRQGLDJQRVLVSURFHVV
48
Installation and Maintenance
Service Manual
Energize and
switch on
IPM protection
occurs after the
machine has run for
a period of time?
Y
Use AC voltmeter
to measure the
voltage between
terminal L and N
on the wiring
board XT)
If the voltage
between terminal L
and N on wiring
board XT is within
210VAC~250VAC?
N
Check the supply
voltage and
restore it to
210VAC~250VAC
Y
Restart theunit. Before
protection occurs,
use DC voltmeter to
measure the voltage
between the two
ends of electrolytic
capacitor on control
panel AP1 (test3)
Voltage between
the two ends of celectrolytic
capacitor (test3) is
higher than
250V
Y
Please confirm:
1. If the indoor and
outdoor heat
exchangers are
dirty? If they are
obstructed by other
objects which affect
the heat exchange
of indoor and
outdoor unit.
2. If the indoor and
outdoor fans are
working normally?
3. If the environment
temperature is too
high, resulting in
that the system
pressure is too high
and exceeds the
permissible range?
4. If the charge
volume of
refrigerant is too
much, resulting in
that the system
pressure is too
high?
5. Other conditions
resulting in that the
system pressure
becomes too high.
The connection
of capacitor C2
is loose.
N
Remove the wires
on the two ends of
capacitor C2. Then,
use capacitance
meter to measure
the capacitor C2.
Verify as per the
Parameters Sheet.
If capacitor
C2 is failed?
Replace the capacitor
C2. Then, energize
and start the unit.
Y
Replace the
control panel AP1
N
If there is any
abnormality
described above?
Y
Reconnect the
capacitor C2 according
to Electrical Wiring
Diagram. Then,
Restart the
unit.
Y
Stop the unit and
disconnect the power
supply. Wait 20 minutes,
or use DC voltmeter to
measure the voltage
between the two ends of
capacitor C2, until the
voltage is lower than 20V
Y
Take corrective actions
according to Technical
Service Manual, and
then energize and start
the unit.
Connect the control panel
AP1 and compressor
COMP correctly according
to the Electrical Wiring
Diagram. Then, energize
and start the unit.
If the
resistance is
normal?
N
N
If the unit can
work normallv?
If the unit can
work normally?
Y
Y
N
Replace the
control panel AP1
N
Use ohmmeter to
measure the resistance
between the three
terminals on compressor
COMP, and compare the
measurements with the
compressor resistance on
Service Manual.
Y
N
Stop the unit and
disconnect the power
supply. Then, check
the connection of
capacitor C2
according to Electrical
Wiring Diagram.
Refer to the
Electrical Wiring
Diagram and check
if the connection
between AP1 and
COMP is loose and if
the connection order
is correct.
If the connection
between AP1 and
COMP is unsecure
or the connection
order is wrong?
If the unit can
work
normally?
N
If the unit can
work
normally?
If the unit can
work normally?
Y
N
Y
Replace the
compressor
COMP
N
Use ohmmeter to
measure the resistance
between the two
terminals of compressor
COMP and copper tube.
Resistance higher
than 500MΩ?
Y
Replace the
control panel
AP1
END
Installation and Maintenance
49
Service Manual
3.Diagnosis for anti-high temperature, overload protection (AP1 below is control board of outdoor unit)
Main detection point:
Ɣ,IWKHRXWGRRUDPELHQWWHPSHUDWXUHLVLQQRUPDOUDQJH
Ɣ,IWKHLQGRRUDQGRXWGRRUIDQLVUXQQLQJQRUPDO
Ɣ,IWKHUDGLDWLQJHQYLURQPHQWRILQGRRUDQGRXWGRRUXQLWLVZHOO
0DOIXQFWLRQGLDJQRVLVSURFHVV
Anti-high temperature,
overload protection
If the outdoor ambient temperature is
higher than 127.4 &deg;F?
Y
Normal protection, please use
it after improve the outdoor
ambient temperature
N
After the unit deenergized for 20min
If the radiating of outdoor
and indoor unit is well?
Y
Improve the
radiating
environment of
unit
N
If the indoor and outdoor
fan work well?
N
1. Check if fan terminal
OFAN is connected well
2. Test if resistance value
of any two terminals is less
than 1k with ohmic meter
Y
Replace
control board
AP1
Replace fan
capacitor C1
Replace
outdoor fan
End
50
Installation and Maintenance
Service Manual
4.Diagnosis for failure start up malfunction (AP1 below is control board of outdoor unit)
Main detection point:
Ɣ,IWKHFRPSUHVVRUZLULQJLVFRUUHFW&quot;
Ɣ,IWKHVWRSWLPHRIFRPSUHVVRULVHQRXJK&quot;
Ɣ,IWKHFRPSUHVVRULVGDPDJHG&quot;
Ɣ,IWKHUHIULJHUDQWFKDUJLQJLVWRRPXFK&quot;
0DOIXQFWLRQGLDJQRVLVSURFHVV
Energize the unit
and start it
If the stop time of compressor
is more than 3min?
If the stop time is not enough and the
high and low pressure of system is not
balance , please start it after 3min
N
Y
If the compressor wire COMP(UVW) is
well connected and connection sequence
is correct
Improve the connection situation
of control board AP1 and
compressor COMP, connect it
with wiring diagram
N
Y
Does the unit start
up normally?
If the refrigerant charging is
too much?
N
Y
Charge the
refrigerant according
to service manual
Does the unit start
up normally?
Y
N
Replace control board AP1
If malfunction is
removed?
N
Replace the
compressor
End
Installation and Maintenance
51
Service Manual
5. Diagnosis for compressor synchronism (AP1 below is control board of outdoor unit)
Main detection point:
Ɣ,IWKHV\VWHPSUHVVXUHLVRYHUKLJK&quot;
Ɣ,IWKHZRUNYROWDJHLVRYHUORZ&quot;
0DOIXQFWLRQGLDJQRVLVSURFHVV
Synchronism after
energize the unit
and start it
Synchronism
occurred during
operation
If the stop time of
compressor is more than
3min
If the outdoor fan works
normally?
N
N
Check if the fan
terminal OFAN is
connected well
Replace fan
capacitor C1
Y
Y
If the radiating of unit is
well?
Improve the radiating
of unit (clean heat
exchanger and
increase ventilation)
Y
If the compressor wire COMP(UVW) is well
connected, the connection sequence
forwards to clockwise direction?
N
Connect
wire well
Y
Replace
control board
AP1
Y
Remove
malfunction?
N
Replace
outdoor fan
N
If the input voltage of unit
is normal?
Start to run until the
power resume normal
voltage
N
Y
If the refrigerant is too
much?
Charge the
refrigerant with
service manual
Y
N
Replace
control board
AP1
Replace
compressor
Remove
malfunction?
End
N
Y
Replace
compressor
End
52
Installation and Maintenance
Service Manual
6.Diagnosis for overload and discharge malfunction (AP1 below is control board of outdoor unit)
Main detection point:
Ɣ,IWKHHOHFWURQH[SDQVLRQYDOYHLVFRQQHFWHGZHOO&quot;,VWKHH[SDQVLRQYDOYHGDPDJHG&quot;
Ɣ,IWKHUHIULJHUDQWLVOHDNDJH&quot;
Ɣ,IWKHRYHUORDGSURWHFWRULVGDPDJHG&quot;
0DOIXQFWLRQGLDJQRVLVSURFHVV
After the unit
de-energized
for 20min
If the overload protector SAT
is well connected?
N
Y
Under ambient temperature, test the
resistance of overload protector with ohmic
Y
N
If the wiring terminal FA of electron
expansion is well connected?
N
Connect wire
well with wiring
diagram
Y
The resistance value of
firs t 4 l e ad fo ot an d th e
fif th lead fo ot is similar,
less than 100
Replace
overload
protector SAT
Replace EKV
coil of electron
expansion valve
Remove
malfunction?
N
Check refrigerant, if there is
leakage, please refer to
specification
Remove
malfunction?
Y
N
Replace
control board
AP1
End
Installation and Maintenance
53
Service Manual
7.Communication malfunction (AP1 below is control board of outdoor unit)
Main detection point:
Ɣ&amp;KHFNLIWKHFRQQHFWLRQZLUHDQGWKHEXLOWLQZLULQJRILQGRRUDQGRXWGRRUXQLWLVFRQQHFWHGZHOODQGQRGDPDJHG
Ɣ,IWKHFRPPXQLFDWLRQFLUFXLWRILQGRRUPDLQERDUGLVGDPDJHG&quot;,IWKHFRPPXQLFDWLRQFLUFXLWRIRXWGRRUPDLQERDUG$3LVGDPaged
0DOIXQFWLRQGLDJQRVLVSURFHVV
Start
If the unit is operation
normal before malfunction
N
Y
Check connection
wire of indoor and
outdoor unit with
circuit diagram
Check builtin wiring of
indoor and
outdoor unit
Y
N
Connection
correct?
N
Malfunction of
circuit is
detected with
control board
AP1 voltage
Y
Check connection
wire of indoor and
outdoor unit with
circuit diagram
If the wiring is
damaged?
N
If the malfunction
is removed?
N
Check communication
circuit of outdoor unit
If the malfunction
is removed?
Problem of
communication
circuit
Replace outdoor
mainboard AP11
Y
If the
malfunction is
removed?
N
Replace indoor
board
N
Y
Y
54
End
Y
Installation and Maintenance
Service Manual
8.Diagnosis process for outdoor communication circuit
Start
Test voltage
value with Test
10 position in
diagram with
voltage meter
Number jumping
N
Y
Test voltage
value with Test
13 position in
diagram with
voltage meter
Y
Number jumping
N
Y
Outdoor unit
malfunction
Test voltage
value with Test
11 position in
diagram with
voltage meter
Number jumping
End
N
Y
Test voltage
value with Test
12 position in
diagram with
voltage meter
N
Number jumping
Y
The circuit of
outdoor unit
communication
is normal
Installation and Maintenance
55
Service Manual
9.4 Troubleshooting for Normal Malfunction
1. Air conditioner can't be started up
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connected well.
Wrong wire connection between
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or poor connection for wiring
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terminals
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reliably
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correctly
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once
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improper
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Repair or replace remote controller
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2. Poor cooling (heating) for air conditioner
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motor is set too low
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Small wind blow
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VEORFNHG
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,QVWDOODWLRQSRVLWLRQIRULQGRRUXQLW
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UDLQSURRIDQGVXQSURRIIRURXWGRRUXQLW
DQGRXWGRRUXQLWLVLPSURSHU
conditioner
'LVFKDUJHGDLUWHPSHUDWXUHGXULQJFRROLQJLV
KLJKHUWKDQQRUPDOGLVFKDUJHGZLQGWHPSHUDWXUH
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8QLW
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range
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details
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details
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0DOIXQFWLRQRIFRPSUHVVRU
Compressor can't operate
details
3. Horizontal louver can't swing
3RVVLEOH&amp;DXVHV
Wrong wire connection, or poor
connection
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diagram
Stepping motor is damaged
Stepping motor can't operate
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can't operate
Main board is damaged
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Connect wires according to wiring diagram to
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5HSODFHWKHPDLQERDUGZLWKWKHVDPHPRGHO
Installation and Maintenance
Service Manual
4. ODU fan motor can't operate
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Wrong wire connection, or poor
connection
'LVFULPLQDWLQJPHWKRGDLUFRQGLWLRQHUVWDWXV
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diagram
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Connect wires according to wiring diagram to
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&iquest;UPO\
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5HSODFHWKHFDSDFLW\RIIDQ
damaged
WKHGHYLDWLRQUDQJHLQGLFDWHGRQWKHQDPHSODWHRI
fan capacitor.
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8VHXQLYHUVDOPHWHUWRPHDVXUHWKHSRZHUVXSSO\
6XJJHVWWRHTXLSZLWKYROWDJHUHJXODWRU
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&amp;KDQJHFRPSUHVVRURLODQGUHIULJHUDQW,IQR
0RWRURIRXWGRRUXQLWLVGDPDJHG is bad and ODU compressor generates a lot of
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5. Compressor can't operate
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Wrong wire connection, or poor
connection
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diagram
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Connect wires according to wiring diagram to
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&iquest;UPO\
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fan capacitor.
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6XJJHVWWRHTXLSZLWKYROWDJHUHJXODWRU
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Repair or replace compressor
between compressor terminals and it's 0
&amp;\OLQGHURIFRPSUHVVRULVEORFNHGCompressor can't operate
Repair or replace compressor
Capacity of compressor is
damaged
6. Air conditioner is leaking
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pipe
Replace drain pipe
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7. Abnormal sound and vibration
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WKHUH
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:DWHUUXQQLQJVRXQGFDQEHKHDUG
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conditioner
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7KHUH
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coil
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compressor
Installation and Maintenance
$EQRUPDOVRXQGLQVLGHWKHFRPSUHVVRU
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damping plaster between connected parts
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Replace magnetic coil
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57
Service Manual
10. Exploded View and Parts List
10.1 Indoor Unit
18K Unit
36
35
37
15
16
14
38
17
13
18
12
19
10
8
11
20
9
7
6
21
5
22
23
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24
3
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27
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30
31
33
32
34
58
Installation and Maintenance
Service Manual
Description
NO.
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2
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4
5
6
7
8
9
10
11
12
13
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17
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Rear Case assy
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Connecting pipe clamp
&amp;UDQN
Stepping Motor
Drainage Hose
Electric Box Assy
/RZHU6KLHOGRI(OHFWULF%R[
Electric Box
-XPSHU
Main Board
Terminal Board
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Power Cord
Connecting Cable
Remote Controller
Cold Plasma Generator
Part Code
GWC18QD-D3DNA6E/I
GWH18QD-D3DNA6E/I
CB427N01700
CB427N02000
2002269501S
2002269501S
11122089
11122089
2019267001
2019267001
2002248401
2002248401
1051276501
1051276501
10542036
10542036
10512732
10512732
26112512
26112512
10512037
10512037
30565264
30565264
22202571
22202571
76712012
76712012
7651205102
7651205102
76512203
76512203
24212177
24212177
0100200001401
0100200001401
10352060
10352060
1501214501
1501214501
26112511
26112511
01362026
01362026
2611218801
2611218801
73012005
73012005
1521240212
1521240212
05230014
05230014
10000201660
10000201661
01592139
01592139
2011221102
2011221102
4202021919
4202021919
30138000657
30138000662
4201123303
4201123303
2011220901
2011220901
01592140
01592140
2425201726
2425201726
2011221001
2011221001
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/
/
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30510475
30510475
/
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Installation and Maintenance
59
Service Manual
24K Unit
14
35
37
36
16
15
38
13
12
17
11
10
8
6
9
18
7
5
2
3
19
20
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Installation and Maintenance
Service Manual
No.
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Description
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Display Board
Rear Case assy
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Cold Plasma Generator
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Drainage Hose
Stepping Motor
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Electric Box
Terminal Board
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Main Board
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Electric Box Assy
Power Cord
Connecting Cable
7HPSHUDWXUH6HQVRU
Remote Controller
Part Code
GWC24QE-D3DNA6E/I
GWH24QE-D3DNA6E/I
CB427N02300
CB427N02400
2002270001S
2002270001S
11012007
11012007
2425245301
2425245301
2002248603
2002248603
10512737
10512737
26112513
26112513
10512037
10512037
30565264
30565264
22202570
22202570
76712012
76712012
26152025
26152025
7651205102
7651205102
10352057
10352057
24212178
24212178
01100100029
01100100029
/
/
01252229
01252229
26112515
26112515
1501214501
1501214501
26112514
26112514
0523001405
0523001405
1521240212
1521240212
73012005
73012005
1051232001
1051232001
10542036
10542036
2011221102
2011221102
4201123303
4201123303
2011221001
2011221001
30138000661
30138000658
01592140
01592140
2011220901
2011220901
4202021919
4202021926
01592139
01592139
10000201675
10000201674
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Installation and Maintenance
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Service Manual
10.2 Outdoor Unit
Cooling only models
31
25
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20
21
19
18
30
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Handle Assy
Wire Clamp
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Rear Grill
Condenser Assy
Coping
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Handle
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Terminal Board
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Main Board
Radiator
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Part Code
GWC18QD-D3DNA6E/O
GWC24QE-D3DNA6E/O
CB427W01700
CB427W02300
01473049
01473049
01433047P
01433047P
10335008
10335008
1501506402
1501506402
01700000094P
02803214P
01233153
01233153
00105249G
00105249G
03833913
03833916
03001300244
03833914
01715010P
01713098P
07133774
07133157
07133204
0713317001
22245002
22245002
0130509403P
0130509403P
02115006P
02115006P
02113109
02113109
26115004
71010003
3900030901
3900030901
01473043
01473043
01100200338
01100200348
01255005P
01255005P
01705043
0170512001
01173132
01173415
01305093P
01305093P
26233053
26233053
10000100287
10000100295
42010255
4201025501
20113027
20113027
30138000686
30138000674
49010252
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20113003
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Installation and Maintenance
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Service Manual
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No.
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18
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Description
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&amp;KDVVLV6XEDVV\
'UDLQDJHKROH&amp;DS
Clapboard Assy
:D\9DOYH$VV\
&amp;RPSUHVVRUDQG)LWWLQJV
9DOYH6XSSRUW$VV\
&amp;XWRII9DOYH
&amp;XWRII9DOYH6XE$VV\
5LJKW6LGH3ODWH
9DOYH&amp;RYHU
Retaining Plate
Handle Assy
Wiring Clamp
7HPSHUDWXUH6HQVRU
Rear Grill
Condenser Assy
Coping
0RWRU6XSSRUW6XE$VV\
&amp;RQGHQVHU6XSSRUW3ODWH
Left Side Plate
Handle
Electric Box Assy
Terminal Board
Electric Box
Main Board
Radiator
Part Code
GWH18QD-D3DNA6E/O
GWH24QE-D3DNA6E/O
CB427W02000
CB427W02400
01473049
01473049
01433047P
01433047P
10335008
10335008
1501506402
1501506402
01700000093P
0280336702P
06813401
06813401
01233153
0123315301
03073366
03073324
00105249G
00105249G
01715010P
01713098P
07133774
07133157
07133204
07133975
0130509403P
0130509403P
22245002
22245002
02115006P
02115006P
02113109
02113109
26115004
26115004
3900030901
3900030901
01473043
01473043
01100200339
01100200347
01255005P
01255005P
01703154
0170512001
01173127
01173415
01305093P
01305093P
26233053
26233053
10000100288
10000100294
42010255
4201025501
20113027
20113027
30138000685
30138000673
49010252
49010252
Qty
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
$ERYHGDWDLVVXEMHFWWRFKDQJHZLWKRXWQRWLFH
Installation and Maintenance
65
Service Manual
11. Removal Procedure
Warning: Be sure to wait for a minimum
of 20 minutes after turning off all power
supplies and discharge the refrigerant
completely before removal.
11.1 Removal Procedure of Indoor Unit
1. Remove filter as s y
F ront panel
Open the front panel. Push the left and right
filters to make them break away from the
groove on the front case. Then remove the left
and right filters one by one.
front
cas e
Left filter
G roove
R ight filter
Screw off the 2 screws that are locking the
display board. Separate the display board from
the front panel.
Screws
Panel
A6 plane display
Front panel
Panel rotation
Groove
66
Installation and Maintenance
Service Manual
Loosen the connection clasps between front
case sub-assy and bottom case. Lift up the
front case sub-assy and take it out.
Screw off the screws that are locking the swing
motor and take the motor off.
Installation and Maintenance
S wing motor
67
Service Manual
Cut off the wire binder and pull out the
indoor tube temperature sensor.
Screw off one grounding screw.
Remove the wiring terminals of motor and
stepping motor.
Remove the electric box assy.
Screw off the screws that are locking each
lead wire.
Indoor tube
temperature s ensor
Main
board
G rounding
s c rew
Wi ring
terminal
of motor
Wire binder
Wiring
terminal
of stepping
motor
S crew
Rotate the electric box assy. Twist off the screws
that are locking the wire clip and loosen the
power cord. Remove the wiring terminal of
power cord. Lift up the main board and take it off.
S crew
P ower cord
Wire clip
68
Installation and Maintenance
Service Manual
G roove
R ear case ass y
First remove the left side of evaporator from
the groove on the rear case assy. Then
remove the right side from the clasp on the
rear case assy.
Installation and Maintenance
C lasp
69
Service Manual
70
Installation and Maintenance
Service Manual
11.2 Removal Procedure of Outdoor Unit
Warning: Be sure to wait for a minimum of 20 minutes after
turning off all power supplies and discharge the refrigerant
completely before removal.
Steps
Procedure
1. Remove big handle,valve cover and top cover
a
big handle
Remove the screw connecting the big handle and
right side plate, and then remove the big handle.
Remove the screw connecting the valve cover and
right side plate, and then remove the valve cover.
valve cover
b
Remove the screws connecting the top cover with
outer case, right side plate and left side plate; lift
the top cover upwards to remove it.
top cover
2. Remove grille and outer case
Remove the 4 screws connecting the grille and
outer case, and then remove the panel grille.
grille
Installation and Maintenance
71
Service Manual
Steps
Procedure
Remove the screws connecting the outer case with
motor support, isolation plate and chassis; lift the
outer case upwards; loosen the clasps of outer
case with right side plate and left side plate, and
then remove the outer case.
outer case
3. Remove right&amp;left side plate
a
Remove the screws connecting the right side plate
with electric box assy, valve support, chassis and
condenser side plate, and then remove the right
side plate.
right side plate
b
Remove the screws connecting the left side plate
with chassis, and then remove the left side plate.
left side plate
72
Installation and Maintenance
Service Manual
Steps
Procedure
4. Remove axial flow blade
a
Remove the nut fixing axial flow blade and then
remove the blade.
axial flow fan
motor support
b
Remove the 6 screws fixing the motor and then
remove the motor.
Remove the 2 screws connecting the motor support
and chassis, and then loosen the stopper to remove
the motor support.
fan motor
5. Remove electric box
electric box
Remove the screws fixing the electric box sub-assy;
loosen the wire bundle; pull out the wiring terminals
and then pull the electric box upwards to remove it.
Installation and Maintenance
73
Service Manual
Steps
Procedure
6. Remove the soundproof sponge
Tear off the sticking stripe and then remove the
soundproof sponge.
soundproof sponge
7. Remove isolation plate
Remove the 2 screws connecting the isolation plate
and condenser side plate; remove the 3 screws
connecting the isolation plate and chassis, and then
remove the isolation plate.
isolation plate
8. Remove 4-way valve assy
Unsolder the welding joints connecting the 4-way
valve assy with capillary sub-assy, compressor and
condenser; remove the 4-way valve.
Note:
Before unsoldering the welding joint, wrap the 4-way
valve with a wet cloth completely to avoid damage to
the valve caused by high temperature.
74
4-way valve assy
Installation and Maintenance
Service Manual
Steps
Procedure
9. Remove compressor
compressor
Remove the 3 foot nuts fixing compressor and then
lift the compressor upwards to remove the
compressor and damping cushion.
Note:
Keep the ports of discharge pipe and suction pipe
from foreign objects.
10. Remove condenser sub-assy
support
a
Remove the screws connecting the support
(condenser) and condenser assy,and then remove
the support(condenser).
condenser
sub-assy
b
Remove the 2 screws fixing the condenser and
chassis, and then lift the condenser upwards to
remove it.
chassis subassy
Installation and Maintenance
75
Service Manual
Appendix:
Appendix 1: Reference Sheet of Celsius and Fahrenheit
Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32
Set temperature
)DKUHQKHLW
)DKUHQKHLW
display
&amp;HOVLXV˄ć˅
WHPSHUDWXUH
˄̧˅
˄̧˅
61
60.8
16
62/63
62.6
17
64/65
64.4
18
66/67
66.2
19
68
68
20
)DKUHQKHLW
)DKUHQKHLW
display
&amp;HOVLXV˄ć˅
WHPSHUDWXUH
˄̧˅
˄̧˅
69/70
69.8
21
71/72
71.6
22
73/74
73.4
23
75/76
75.2
24
77
77
25
)DKUHQKHLW
)DKUHQKHLW
display
&amp;HOVLXV˄ć˅
WHPSHUDWXUH
˄̧˅
˄̧˅
78/79
78.8
26
80/81
80.6
27
82/83
82.4
28
84/85
84.2
29
86
86
30
)DKUHQKHLW
)DKUHQKHLW
display
&amp;HOVLXV˄ć˅
WHPSHUDWXUH ˄̧˅
˄̧˅
55/56
55.4
13
57/58
57.2
14
59/60
59
15
61/62
60.8
16
63
62.6
17
64/65
64.4
18
66/67
66.2
19
68/69
68
20
70/71
69.8
21
72
71.6
22
73/74
73.4
23
75/76
75.2
24
77/78
77
25
)DKUHQKHLW
)DKUHQKHLW
display
&amp;HOVLXV˄ć˅
WHPSHUDWXUH
˄̧˅
˄̧˅
79/80
78.8
26
81
80.6
27
82/83
82.4
28
84/85
84.2
29
86/87
86
30
88/89
87.8
31
90
89.6
32
91/92
91.4
33
93/94
93.2
34
95/96
95
35
97/98
96.8
36
99
98.6
37
Ambient temperature
)DKUHQKHLW
)DKUHQKHLW
display
&amp;HOVLXV˄ć˅
WHPSHUDWXUH
˄̧˅
˄̧˅
32/33
32
0
34/35
33.8
1
36
35.6
2
37/38
37.4
3
39/40
39.2
4
41/42
41
5
43/44
42.8
6
45
44.6
7
46/47
46.4
8
48/49
48.2
9
50/51
50
10
52/53
51.8
11
54
53.6
12
$SSHQGL[&amp;RQ&iquest;JXUDWLRQRI&amp;RQQHFWLRQ3LSH
6WDQGDUGOHQJWKRIFRQQHFWLRQSLSH
ƔIWIWIW
0LQOHQJWKRIFRQQHFWLRQSLSHLVIW
0D[OHQJWKRIFRQQHFWLRQSLSHDQGPD[KLJKGLIIHUHQFH
7KHDGGLWLRQDOUHIULJHUDQWRLODQGUHIULJHUDQWFKDUJLQJUHTXLUHGDIWHU
prolonging connection pipe
Ɣ$IWHUWKHOHQJWKRIFRQQHFWLRQSLSHLVSURORQJHGIRUIWDWWKH
EDVLVRIVWDQGDUGOHQJWK\RXVKRXOGDGGPORIUHIULJHUDQWRLOIRUHDFK
additional 16.40ft of connection pipe.
Ɣ7KHFDOFXODWLRQPHWKRGRIDGGLWLRQDOUHIULJHUDQWFKDUJLQJDPRXQWRQ
WKHEDVLVRIOLTXLGSLSH
0D[OHQJWKRI
connection pipe
%WXK:
49.21ft
%WXK:
49.21ft
%WXK:
49.21ft
%WXK:
65.62ft
%WXK:
80.02ft
%WXK:
80.02ft
%WXK:
98.43ft
%WXK:
98.43ft
%WXK:
98.43ft
%WXK:
98.43ft
Cooling capacity
0D[KHLJKW
difference
16.40ft
16.40ft
32.81ft
32.81ft
32.81ft
32.81ft
32.81ft
65.62ft
65.62ft
65.62ft
Ɣ :KHQ WKH OHQJWK RI FRQQHFWLRQ SLSH LV DERYH IW DGG UHIULJHUDQW DFFRUGLQJ WR WKH SURORQJHG OHQJWK RI OLTXLG SLSH7KH
DGGLWLRQDOUHIULJHUDQWFKDUJLQJDPRXQWSHUPHWHULVGLIIHUHQWDFFRUGLQJWRWKHGLDPHWHURIOLTXLGSLSH6HHWKHIROORZLQJVKHHW
Ɣ$GGLWLRQDOUHIULJHUDQWFKDUJLQJDPRXQW SURORQJHGOHQJWKRIOLTXLGSLSH;DGGLWLRQDOUHIULJHUDQWFKDUJLQJDPRXQWSHUPHWHU
$GGLWLRQDOUHIULJHUDQWFKDUJLQJDPRXQWIRU55&amp;5$DQG5D
Diameter of connection pipe
2XWGRRUXQLWWKURWWOH
/LTXLGSLSHLQFK
*DVSLSHLQFK Cooling only(oz/ft.) &amp;RROLQJDQGKHDWLQJoz/ft.)
Ɏ
ɎRUɎ
0.2
0.2
ɎRUɎ
ɎRUɎ
0.2
0.2
Ɏ
ɎRUɎ
0.3
1.3
Ɏ
ɎRUɎ
0.7
1.3
Ɏ
/
2.7
2.7
Ɏ
/
3.8
3.8
76
Installation and Maintenance
Service Manual
Appendix 3: Pipe Expanding Method
Pipe
Note:
Pipe cutter
Improper pipe expanding is the main cause of refrigerant leakage.Please
expand the pipe according to the following steps:
Leaning
Uneven
Burr
$&amp;XWWKHSLS
Ɣ&amp;RQ&iquest;UPWKHSLSHOHQJWKDFFRUGLQJWRWKHGLVWDQFHRILQGRRUXQLWDQGRXWGRRUXQLW
Ɣ&amp;XWWKHUHTXLUHGSLSHZLWKSLSHFXWWHU
Pipe
%5HPRYHWKHEXUUV
Ɣ5HPRYHWKHEXUUVZLWKVKDSHUDQGSUHYHQWWKHEXUUVIURPJHWWLQJLQWRWKHSLSH
Shaper
Downwards
&amp;3XWRQVXLWDEOHLQVXODWLQJSLSH
Union pipe
'3XWRQWKHXQLRQQXW
Ɣ5HPRYHWKHXQLRQQXWRQWKHLQGRRUFRQQHFWLRQSLSHDQGRXWGRRUYDOYHLQVWDOO
Pipe
WKHXQLRQQXWRQWKHSLSH
(([SDQGWKHSRUW
Ɣ([SDQGWKHSRUWZLWKH[SDQGHU
Note:
Expander
Hard
mold
Ɣ$LVGLIIHUHQWDFFRUGLQJWRWKHGLDPHWHUSOHDVHUHIHUWRWKHVKHHWEHORZ
2XWHUGLDPHWHULQFK
Ɏ
Ɏ
Ɏ
Ɏ
$LQFK
Max
2/39
1/16
1/14
5/53
Pipe
Min
1/36
1/51
1/51
2/23
),QVSHFWLRQ
Ɣ&amp;KHFNWKHTXDOLW\RIH[SDQGLQJSRUW,IWKHUHLVDQ\EOHPLVKH[SDQGWKH
SRUWDJDLQDFFRUGLQJWRWKHVWHSVDERYH
Smooth surface
Improper expanding
leaning
damaged
surface
crack
uneven
thickness
The length is equal
Installation and Maintenance
77
Service Manual
Appendix 4: List of Resistance for Temperature Sensor
Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K)
Temp.(o)
-2.2
-0.4
1.4
3.2
5
6.8
8.6
10.4
12.2
14
15.8
17.6
19.4
21.2
23
24.8
26.6
28.4
30.2
32
33.8
35.6
37.4
39.2
41
42.8
44.6
46.4
48.2
50
51.8
53.6
55.4
57.2
59
60.8
62.6
64.4
66.2
78
5HVLVWDQFHNȍ
138.1
128.6
121.6
115
108.7
102.9
97.4
92.22
87.35
82.75
78.43
74.35
70.5
66.88
63.46
60.23
57.18
54.31
51.59
49.02
46.6
44.31
42.14
40.09
38.15
36.32
34.58
32.94
31.38
29.9
28.51
27.18
25.92
24.73
23.6
22.53
21.51
20.54
19.63
Temp.(o)
68
69.8
71.6
73.4
75.2
77
78.8
80.6
82.4
84.2
86
87.8
89.6
91.4
93.2
95
96.8
98.6
100.4
102.2
104
105.8
107.6
109.4
111.2
113
114.8
116.6
118.4
120.2
122
123.8
125.6
127.4
129.2
131
132.8
134.6
136.4
5HVLVWDQFHNȍ
18.75
17.93
17.14
16.39
15.68
15
14.36
13.74
13.16
12.6
12.07
11.57
11.09
10.63
10.2
9.779
9.382
9.003
8.642
8.297
7.967
7.653
7.352
7.065
6.791
6.529
6.278
6.038
5.809
5.589
5.379
5.197
4.986
4.802
4.625
4.456
4.294
4.139
3.99
Temp.(o)
138.2
140
141.8
143.6
145.4
147.2
149
150.8
152.6
154.4
156.2
158
159.8
161.6
163.4
165.2
167
168.8
170.6
172.4
174.2
176
177.8
179.6
181.4
183.2
185
186.8
188.6
190.4
192.2
194
195.8
197.6
199.4
201.2
203
204.8
206.6
5HVLVWDQFHNȍ
3.848
3.711
3.579
3.454
3.333
3.217
3.105
2.998
2.896
2.797
2.702
2.611
2.523
2.439
2.358
2.28
2.206
2.133
2.064
1.997
1.933
1.871
1.811
1.754
1.699
1.645
1.594
1.544
1.497
1.451
1.408
1.363
1.322
1.282
1.244
1.207
1.171
1.136
1.103
Temp.(o)
208.4
210.2
212
213.8
215.6
217.4
219.2
221
222.8
224.6
226.4
228.2
230
231.8
233.6
235.4
237.2
239
240.8
242.6
244.4
246.2
248
249.8
251.6
253.4
255.2
257
258.8
260.6
262.4
264.2
266
267.8
269.6
271.4
273.2
275
276.8
5HVLVWDQFHNȍ
1.071
1.039
1.009
0.98
0.952
0.925
0.898
0.873
0.848
0.825
0.802
0.779
0.758
0.737
0.717
0.697
0.678
0.66
0.642
0.625
0.608
0.592
0.577
0.561
0.547
0.532
0.519
0.505
0.492
0.48
0.467
0.456
0.444
0.433
0.422
0.412
0.401
0.391
0.382
Installation and Maintenance
Service Manual
Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K)
Temp.(o)
5HVLVWDQFHNȍ
Temp.(o)
5HVLVWDQFHNȍ
Temp.(o)
5HVLVWDQFHNȍ
Temp.(o)
5HVLVWDQFHNȍ
-2.2
-0.4
1.4
3.2
5
6.8
8.6
10.4
12.2
14
15.8
17.6
19.4
21.2
23
24.8
26.6
28.4
30.2
32
33.8
35.6
37.4
39.2
41
42.8
44.6
46.4
48.2
50
51.8
53.6
55.4
57.2
59
60.8
62.6
64.4
66.2
181.4
171.4
162.1
153.3
145
137.2
129.9
123
116.5
110.3
104.6
99.13
94
89.17
84.61
80.31
76.24
72.41
68.79
65.37
62.13
59.08
56.19
53.46
50.87
48.42
46.11
43.92
41.84
39.87
38.01
36.24
34.57
32.98
31.47
30.04
28.68
27.39
26.17
68
69.8
71.6
73.4
75.2
77
78.8
80.6
82.4
84.2
86
87.8
89.6
91.4
93.2
95
96.8
98.6
100.4
102.2
104
105.8
107.6
109.4
111.2
113
114.8
116.6
118.4
120.2
122
123.8
125.6
127.4
129.2
131
132.8
134.6
136.4
25.01
23.9
22.85
21.85
20.9
20
19.14
18.13
17.55
16.8
16.1
15.43
14.79
14.18
13.59
13.04
12.51
12
11.52
11.06
10.62
10.2
9.803
9.42
9.054
8.705
8.37
8.051
7.745
7.453
7.173
6.905
6.648
6.403
6.167
5.942
5.726
5.519
5.32
138.2
140
141.8
143.6
145.4
147.2
149
150.8
152.6
154.4
156.2
158
159.8
161.6
163.4
165.2
167
168.8
170.6
172.4
174.2
176
177.8
179.6
181.4
183.2
185
186.8
188.6
190.4
192.2
194
195.8
197.6
199.4
201.2
203
204.8
206.6
5.13
4.948
4.773
4.605
4.443
4.289
4.14
3.998
3.861
3.729
3.603
3.481
3.364
3.252
3.144
3.04
2.94
2.844
2.752
2.663
2.577
2.495
2.415
2.339
2.265
2.194
2.125
2.059
1.996
1.934
1.875
1.818
1.736
1.71
1.658
1.609
1.561
1.515
1.47
208.4
210.2
212
213.8
215.6
217.4
219.2
221
222.8
224.6
226.4
228.2
230
231.8
233.6
235.4
237.2
239
240.8
242.6
244.4
246.2
248
249.8
251.6
253.4
255.2
257
258.8
260.6
262.4
264.2
266
267.8
269.6
271.4
273.2
275
276.8
1.427
1.386
1.346
1.307
1.269
1.233
1.198
1.164
1.131
1.099
1.069
1.039
1.01
0.983
0.956
0.93
0.904
0.88
0.856
0.833
0.811
0.77
0.769
0.746
0.729
0.71
0.692
0.674
0.658
0.64
0.623
0.607
0.592
0.577
0.563
0.549
0.535
0.521
0.509
Installation and Maintenance
79
Service Manual
Resistance Table of Discharge Temperature Sensor for Outdoor(50K)
Temp.(o)
-20.2
-18.4
-16.6
-14.8
-13
-11.2
-9.4
-7.6
-5.8
-4
-2.2
-0.4
1.4
3.2
5
6.8
8.6
10.4
12.2
14
15.8
17.6
19.4
21.2
23
24.8
26.6
28.4
30.2
32
33.8
35.6
37.4
39.2
41
42.8
44.6
46.4
48.2
80
5HVLVWDQFHNȍ
853.5
799.8
750
703.8
660.8
620.8
580.6
548.9
516.6
486.5
458.3
432
407.4
384.5
362.9
342.8
323.9
306.2
289.6
274
259.3
245.6
232.6
220.5
209
198.3
199.1
178.5
169.5
161
153
145.4
138.3
131.5
125.1
119.1
113.4
108
102.8
Temp.(o)
50
51.8
53.6
55.4
57.2
59
60.8
62.6
64.4
66.2
68
69.8
71.6
73.4
75.2
77
78.8
80.6
82.4
84.2
86
87.8
89.6
91.4
93.2
95
96.8
98.6
100.4
102.2
104
105.8
107.6
109.4
111.2
113
114.8
116.6
118.4
5HVLVWDQFHNȍ
98
93.42
89.07
84.95
81.05
77.35
73.83
70.5
67.34
64.33
61.48
58.77
56.19
53.74
51.41
49.19
47.08
45.07
43.16
41.34
39.61
37.96
36.38
34.88
33.45
32.09
30.79
29.54
28.36
27.23
26.15
25.11
24.13
23.19
22.29
21.43
20.6
19.81
19.06
Temp.(o)
120.2
122
123.8
125.6
127.4
129.2
131
132.8
134.6
136.4
138.2
140
141.8
143.6
145.4
147.2
149
150.8
152.6
154.4
156.2
158
159.8
161.6
163.4
165.2
167
168.8
170.6
172.4
174.2
176
177.8
179.6
181.4
183.2
185
186.8
188.6
5HVLVWDQFHNȍ
18.34
17.65
16.99
16.36
15.75
15.17
14.62
14.09
13.58
13.09
12.62
12.17
11.74
11.32
10.93
10.54
10.18
9.827
9.489
9.165
8.854
8.555
8.268
7.991
7.726
7.47
7.224
6.998
6.761
6.542
6.331
6.129
5.933
5.746
5.565
5.39
5.222
5.06
4.904
Temp.(o)
190.4
192.2
194
195.8
197.6
199.4
201.2
203
204.8
206.6
208.4
210.2
212
213.8
215.6
217.4
219.2
221
222.8
224.6
226.4
228.2
230
231.8
233.6
235.4
237.2
239
240.8
242.6
244.4
246.2
248
249.8
251.6
253.4
255.2
257
258.8
5HVLVWDQFHNȍ
4.754
4.609
4.469
4.334
4.204
4.079
3.958
3.841
3.728
3.619
3.514
3.413
3.315
3.22
3.129
3.04
2.955
2.872
2.792
2.715
2.64
2.568
2.498
2.431
2.365
2.302
2.241
2.182
2.124
2.069
2.015
1.963
1.912
1.863
1.816
1.77
1.725
1.682
1.64
Installation and Maintenance
-)
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
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Email: [email protected]
Http://www.gree.com
HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED
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Key features

Cooling and heating modes
Energy-saving function
8°C heating function
Child lock function
Temperature display switchover function
Remote controller with timer
Detailed installation instructions
Troubleshooting guide
Comprehensive parts list
Exploded view diagrams
Frequently asked questions

This service manual covers the following GREE split-system air conditioner models: GWC18QD-D3DNA6E(LC), GWH18QD-D3DNA6E(LCLH), GWC24QE-D3DNA6E(LC), and GWH24QE-D3DNA6E(LCLH).
These models use R410A refrigerant.
The Service Manual provides detailed installation instructions, including dimension diagrams, location selection, and proper piping procedures.
The manual includes an error code list and troubleshooting guide to help you identify and resolve potential issues.
The service manual provides an exploded view and parts list with detailed information on each component.