Gree LIVS09HP115V1A - 4-Way Valve Control; Control Logic; Defrosting Control; Outer Fans Control

22
Technical Information
Service Manual
3. Special Functions
Defrosting Control
ķ
Conditions for starting defrosting
$IWHUWKHWLPHIRUGHIURVWLQJLVMXGJHGWREHVDWLV¿HGLIWKHWHPSHUDWXUHIRUGHIURVWLQJLVVDWLV¿HGDIWHUGHWHFWLRQVIRUFRQWLQXRXVPLQXWHV
WKHGHIURVWLQJRSHUDWLRQZLOOVWDUW
ĸ
&RQGLWLRQVRI¿QLVKLQJGHIURVWLQJ
7KHGHIURVWLQJRSHUDWLRQFDQH[LWZKHQDQ\RIWKHFRQGLWLRQVEHORZLVVDWLV¿HG
Ĺ
T
RXWGRRUSLSHWHPSHUDWXUH
7
RXWGRRUDPELHQWWHPSHUDWXUH
±>7
WHPSHUDWXUHRI¿QLVKLQJGHIURVWLQJ
];
ĺ
7KHFRQWLQXRXVUXQQLQJWLPHRIGHIURVWLQJUHDFKHV>WPD[GHIURVWLQJWLPH@
4. Control Logic
(1) Compressor Control
6WDUW WKH FRPSUHVVRU DIWHU VWDUWLQJ FRROLQJ KHDWLQJ GHKXPLGLI\LQJ RSHUDWLRQV DQG WKH RXWHU IDQV VWDUW IRU V :KHQ WKH PDFKLQH LV
VKXWGRZQ LQ VDIHW\ VWRSV DQG ZKHQ VZLWFKLQJ WR DLUVXSSO\LQJ PRGH WKH FRPSUHVVRU ZLOO VWRS LPPHGLDWHO\ ,Q DOO PRGHV RQFH WKH
FRPSUHVVRU VWDUWV XS LW ZLOO QRW EH DOORZHG WR VWRS XQWLO KDYLQJ UXQ IRU WKH >WPLQ FRPSUHVVRU UXQQLQJ WLPH@ 1RWH LQFOXGLQJ FDVHV RI
VKXWGRZQZKHQWKHWHPSHUDWXUHSRLQWLVUHDFKHGH[FHSWWKHFDVHVUHTXLULQJVWRSSLQJWKHFRPSUHVVRUVXFKDVIDXOWSURWHFWLRQUHPRWH
VKXWGRZQPRGHVZLWFKLQJHWF,QDOOPRGHVRQFHWKHFRPSUHVVRUVWRSVLWZLOOEHDOORZHGEHUHVWDUWDIWHUPLQXWHGHOD\1RWH7KH
LQGRRU XQLWV KDYH D IXQFWLRQ RI SRZHU PHPRU\ WKH PDFKLQH FDQ EH UHVWDUWHG DIWHU UHPRWH VKXWGRZQ DQG SRZHULQJ XS DJDLQ ZLWKRXW
delay).
1. Cooling mode
6WDUWWKHPDFKLQHWRHQWHULQWRFRROLQJRSHUDWLRQIRUFRROLQJWKHFRPSUHVVRULVVZLWFKHGRQ
2. Dehumidifying mode
6DPHDVWKHFRROLQJPRGH
3. Air-supplying
mode
7KHFRPSUHVVRULVVZLWFKHGRII
4. Heating mode
6WDUWWKHPDFKLQHWRHQWHULQWRKHDWLQJRSHUDWLRQIRUKHDWLQJWKHFRPSUHVVRULVVZLWFKHGRQ
(2) Defrosting:
D'HIURVWLQJVWDUWVWKHFRPSUHVVRULVVKXWGRZQDQGUHVWDUWVLWDIWHUVHFRQGGHOD\
E'HIURVWLQJHQGVWKHFRPSUHVVRUVWRSVWKHQVWDUWVLWDIWHUVHFRQGGHOD\
(2) Outer Fans Control
Notes:
2QO\WKHRXWHUIDQVUXQIRUDWOHDVWVLQHDFKDLUÀRZVSHHGFDQWKHDLUÀRZEHVZLWFKHG
$IWHUWKHRXWHUIDQVUXQFRPSXOVLYHO\LQKLJKVSHHGIRUVZKHQWKHPDFKLQHVWDUWVXSFRQWUROWKHDLUÀRZDFFRUGLQJWRWKHORJLF
$IWHUUHPRWHVKXWGRZQVDIHW\VWRSVDQGZKHQWKHPDFKLQHVWRSVDIWHUUHDFKLQJWKHWHPSHUDWXUHSRLQWDVZHOODVDIWHUWKHFRPSUHVVRU
VWRSVH[WHQGPLQXWHWKHRXWHUIDQVZLOOVWRS'XULQJWKHSHULRGLQWKHPLQXWHWKHDLUÀRZRIRXWHUIDQVFDQEHFKDQJHGDFFRUGLQJWR
WKHRXWGRRUDPELHQWWHPSHUDWXUHFKDQJHV:KHQUXQQLQJZLWKIRUFHWKHRXWGRRUIDQVVKDOOUXQLQWKHKLJKHVWDLUÀRZ
(3) 4-way valve control
7KHZD\YDOYHFRQWUROXQGHUWKHPRGHVRI&RROLQJGHKXPLGL¿FDWLRQDQGVXSSO\LQJDLUFORVLQJ
7KHVWDWXVRIZD\YDOYHFRQWUROXQGHUWKHKHDWLQJPRGHJHWWLQJSRZHU
ZD\YDOYHSRZHUFRQWUROXQGHUKHDWLQJPRGH
D6WDUWVWKHPDFKLQHXQGHUKHDWLQJPRGHWKHZD\YDOYHZLOOJHWSRZHULPPHGLDWHO\
ZD\YDOYHSRZHUWXUQRIIFRQWUROXQGHUKHDWLQJPRGH
D:KHQ\RXVKRXOGWXUQRIIWKHSRZHURUVZLWFKWRRWKHUPRGHXQGHUKHDWLQJPRGHWKHSRZHURIZD\YDOYHZLOOEHFXWDIWHUPLQXWHV
RIWKHFRPSUHVVRUVWRSSHG
E:KHQDOONLQGVRISURWHFWLRQVWRSVWKHSRZHURIZD\YDOYHZLOOEHFXWDIWHUGHOD\LQJPLQXWHV
'HIURVWLQJFRQWUROXQGHUKHDWLQJPRGH
D'HIURVWLQJEHJLQV7KHSRZHURIZD\YDOYHZLOOEHFXWDIWHUVRIHQWHULQJLQWRWKHGHIURVWLQJFRPSUHVVRU
E'HIURVWLQJVWRSV7KHZD\YDOYHZLOOJHWSRZHUDIWHUVRIH[LWLQJWKHGHIURVWLQJFRPSUHVVRU
(4) Evaporator frozen-preventing protection function
$WWKHPRGHRI&RROLQJGHKXPLGLI\LQJ
(YDSRUDWRUIUR]HQSUHYHQWLQJSURWHFWLRQIXQFWLRQLVDOORZHGWREHJLQDIWHUPLQRIVWDUWLQJWKHFRPSUHVVRU