Gree GWH18AAD-K6DNA1A/I

35
Installation and Maintenance
Service Manual
(6)Voltage sag protection
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(7)Communication fault
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(8)Module protection
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FRPSUHVVRUH[FHHGVWKH>W
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(9)Module overheating protection
1. Starting estimation:
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0RGXOH
>7
0RGXOHIUHTXHQF\OLPLWHGWHPSHUDWXUH
@WKHWHPSHUDWXUHRIK\VWHUHVLVLVWKHPDFKLQHLVDOORZHG
WR VWDUW RWKHUZLVH LW VKRXOG QRW EH VWDUWHG DQG VKRXOG EH VWRSSHG WR WUHDW DFFRUGLQJ WR WKH PRGXOH RYHUKHDWLQJ SURWHFWLRQ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>7
/LPLWHGIUHTXHQF\WHPSHUDWXUHRIPRGXOH
@7
0RGXOH
>7
IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHGRIPRGXOH
@\RXVKRXOGOLPLWWKHIUHTXHQF\UDLVLQJRIFRPSUHVVRU
3. Reducing frequency at normal speed and power turn-off:
,I>7
IUHTXHQF\UHGXFLQJWHPSHUDWXUH DW QRUPDO VSHHG RI PRGXOH
@ 7
0RGXOH
>7
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@\RX VKRXOGDGMXVW WKHFRPSUHVVRU IUHTXHQF\E\
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@7
0RGXOH
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4. Reducing frequency at high speed and power turn-off:
,I>7
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@7
0RGXOH
>7
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@7
0RGXOH
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5. Power turn-off:
,IWKH>7
3RZHUWXUQRIIWHPSHUDWXUHRIPRGXOH
@7
0RGXOH
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0RGXOH
>7
/LPLWHGIUHTXHQF\WHPSHUDWXUHRIPRGXOH
]
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transferring also will not clear it).
(10)Compressor overloads protection
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DOORZHGWRRSHUDWH DIWHURYHUORDGSURWHFWLRQ ZDV PHDVXUHGWRUHVXPH,IWKH RYHUORDGLQJ SURWHFWLRQFRQWLQXRXVO\ RFFXUV IRUWKUHH WLPHVLW
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@PLQXWHV
(11)Phase current overcurrent protection of compressor
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steps:
1. Frequency limited
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/LPLWHGIUHTXHQF\SKDVHFXUUHQW
@>,
3KDVHFXUUHQW7IUHTXHQF\UHGXFLQJSKDVHFXUUHQW
@\RXVKRXOGOLPLWWKHIUHTXHQF\UDLVLQJRIFRPSUHVVRU
2. Reducing Frequency
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)UHTXHQF\5HGXFLQJ3KDVH&XUUHQW
@,3KDVH&XUUHQW>,
3RZHU7XUQ2II3KDVH&XUUHQW
@WKHFRPSUHVVRUVKDOOFRQWLQXHWRUHGXFHIUHTXHQF\WLOOWKHORZHVWIUHTXHQF\
OLPLWRURXWRIWKHFRQGLWLRQRIUHGXFLQJIUHTXHQF\
3. Power turn-off
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3KDVH&XUUHQW
@>,
3RZHU7XUQ2II3KDVH&XUUHQW
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3KDVH&XUUHQW
@>,
)UHTXHQF\5HGXFLQJ
3KDVH&XUUHQW
@DQGWKHFRPSUHVVRUKDYHVWRSSHGZRUNLQJIRUPLQWKHPDFKLQHVKDOOEHDOORZHGWRRSHUDWH
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