Gree GWH18QD-K6DNA1C Series Service Manual page 48

Service Manual
1. Starting estimation:
$IWHU WKH FRPSUHVVRU VWRSSHG ZRUNLQJ IRU V LI 7
PDFKLQH LV RQO\ DOORZHG WR VWDUW IRU RSHUDWLQJ RWKHUZLVH LW VKRXOG QRW EH VWDUWHG DQG VKRXOG EH VWRSSHG WR WUHDW DFFRUGLQJ WR WKH IUR]HQ
SUHYHQWLQJ SURWHFWLRQ &OHDU WKH WURXEOH XQGHU WKH PRGH RI SRZHU WXUQRII  KHDWLQJ DQG WKH SURWHFWLRQ WLPHV DUH QRW FRXQWHG
2. Frequency limited
>7
IUR]HQSUHYHQWLQJ QRUPDO VSHHG IUHTXHQF\UHGXFLQJ WHPSHUDWXUH
compressor.
3. Reducing frequency at normal speed:
,I >7
IUR]HQSUHYHQWLQJ KLJK VSHHG IUHTXHQF\UHGXFLQJ WHPSHUDWXUH
IUHTXHQF\ E\ UHGXFLQJ +] V WLOO WKH ORZHU OLPLW
4. Reducing frequency at high speed:
,I >7
IUR]HQSUHYHQWLQJ SRZHU WXUQRII WHPSHUDWXUH
UHGXFLQJ +] V WLOO WKH ORZHU OLPLW
5. Power turn-off:
,I WKH 7 >7
inner pipe IUR]HQSUHYHQWLQJ SRZHU WXUQRII WHPSHUDWXUH
<T  DQG WKH FRPSUHVVRU KDV VWRSSHG ZRUNLQJ IRU  PLQXWHV WKH ZKROH PDFKLQH VKRXOG EH DOORZHG WR RSHUDWH
inner pipe
 ,I WKH IUR]HQSUHYHQWLQJ SURWHFWLRQ SRZHU WXUQRII FRQWLQXRXVO\ RFFXUV IRU VL[ WLPHV LW VKRXOG QRW EH UHVXPHG DXWRPDWLFDOO\ DQG \RX VKRXOG
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
HYDSRUDWRU IUR]HQSUHYHQWLQJ SURWHFWLRQ WLPHV ]HUR FOHDULQJ WLPH  WKH WLPHV RI IUR]HQSUHYHQWLQJ SRZHU WXUQRII VKRXOG EH FOHDUHG WR UHFRXQW
7KH PRGH RI VWRSSLQJ WKH PDFKLQH RU WUDQVIHUULQJ WR VXSSO\ DLU ZLOO FOHDU WKH WURXEOH WLPHV LPPHGLDWHO\ LI WKH WURXEOH FDQ QRW EH UHVXPHG
mode transferring will not clear it).
(5) Overload protection function
2YHUORDG SURWHFWLRQ IXQFWLRQ DW WKH PRGH RI FRROLQJ DQG GHKXPLGLI\LQJ
1. Starting estimation:
$IWHU WKH FRPSUHVVRU VWRSSHG ZRUNLQJ IRU V LI 7
PDFKLQH LV DOORZHG WR VWDUW RWKHUZLVH LW VKRXOG QRW EH VWDUWHG DQG VKRXOG EH VWRSSHG WR WUHDW DFFRUGLQJ WR WKH RYHUORDG SURWHFWLRQ &OHDU WKH
WURXEOH DW WKH PRGH RI SRZHU WXUQRII  KHDWLQJ DQG WKH SURWHFWLRQ WLPHV DUH QRW FRXQWHG
2. Frequency limited
,I >7
&RROLQJ RYHUORDG IUHTXHQF\OLPLWHG WHPSHUDWXUH
compressor.
3. Reducing frequency at normal speed and power turn-off:
,I >7
&RROLQJ RYHUORDG IUHTXHQF\ UHGXFLQJ WHPSHUDWXUH DW KLJK VSHHG
E\ UHGXFLQJ +] V WLOO WKH ORZHU OLPLW $IWHU LW ZDV UXQQLQJ V DW WKH ORZHU OLPLW LI >7
WKHQ &RROLQJ RYHUORDG SURWHFWV PDFKLQH VWRSSLQJ
4. Reducing frequency at high speed and stop machine:
,I >7
&RROLQJ RYHUORDG IUHTXHQF\ UHGXFLQJ WHPSHUDWXUH DW KLJK VSHHG
UHGXFLQJ +] V WLOO WKH ORZHU OLPLW $IWHU LW ZDV UXQQLQJ V DW WKH ORZHU OLPLW LI >7
WKHQ &RROLQJ RYHUORDG SURWHFWV PDFKLQH VWRSSLQJ
5. Power turn-off:
,I WKH >7
&RROLQJ RYHUORDG SRZHU WXUQRII WHPSHUDWXUH
@DQG WKH FRPSUHVVRU KDV EHHQ VWRSSHG ZRUNLQJ IRU  PLQXWHV WKH PDFKLQH VKRXOG EH DOORZHG WR RSHUDWH
WHPSHUDWXUH
 ,I WKH &RROLQJ RYHUORDG SURWHFWLRQ SRZHU WXUQRII FRQWLQXRXVO\ RFFXUV IRU VL[ WLPHV LW VKRXOG QRW EH UHVXPHG DXWRPDWLFDOO\ DQG \RX VKRXOG
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
RYHUORDG SURWHFWLRQ WLPHV ]HUR FOHDULQJ WLPH  WKH WLPHV RI RYHUORDG SURWHFWLRQ SRZHU WXUQRII VKRXOG EH FOHDUHG WR UHFRXQW 7KH PRGH RI
VWRSSLQJ WKH PDFKLQH RU WUDQVIHUULQJ WR VXSSO\ DLU ZLOO FOHDU WKH WURXEOH WLPHV LPPHGLDWHO\ LI WKH WURXEOH FDQ QRW EH UHVXPHG WUDQVIHUULQJ
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\VWHUHVLV LV   WKH PDFKLQH LV DOORZHG WR VWDUW RWKHUZLVH LW VKRXOG QRW EH VWDUWHG DQG VKRXOG EH VWRSSHG WR WUHDW DFFRUGLQJ WR WKH RYHUORDG
protection:
&OHDU WKH WURXEOH DW WKH PRGH RI SRZHU WXUQRII  KHDWLQJ DQG WKH SURWHFWLRQ WLPHV DUH QRW FRXQWHG
Technical Information
>>7
inner pipe
@”7 >7
inner pipe IUR]HQSUHYHQWLQJ IUHTXHQF\OLPLWHG WHPSHUDWXUH
@”7 >7
inner pipe IUR]HQSUHYHQWLQJ QRUPDO VSHHG IUHTXHQF\UHGXFLQJ WHPSHUDWXUH
@”7 >7
inner pipe IUR]HQSUHYHQWLQJ KLJK VSHHG IUHTXHQF\UHGXFLQJ WHPSHUDWXUH
@ WKHQ IUR]HQSUHYHQWLQJ SURWHFW WR VWRS WKH PDFKLQH ,I 7>
>7
RXWHU SLSH
@ ”7 >7
RXWHU SLSH &RROLQJ RYHUORDG IUHTXHQF\ UHGXFLQJ WHPSHUDWXUH DW QRUPDO VSHHG
@ ”7 >7
RXWHU SLSH
@”7 >7
RXWHU SLSH &RROLQJ RYHUORDG SRZHU WXUQRII WHPSHUDWXUH
@”7  WKHQ &RROLQJ RYHUORDG SURWHFWV PDFKLQH VWRSSLQJ ,I >7
RXWHU SLSH
IUR]HQSUHYHQWLQJ IUHTXHQF\OLPLWHG WHPSHUDWXUH
&RROLQJ RYHUORDG IUHTXHQF\OLPLWHG WHPSHUDWXUH
&RROLQJ RYHUORDG SRZHU WXUQRII WHPSHUDWXUH
&RROLQJ RYHUORDG IUHTXHQF\ UHGXFLQJ WHPSHUDWXUH DW QRUPDO VSHHG
&RROLQJ RYHUORDG IUHTXHQF\ UHGXFLQJ WHPSHUDWXUH DW QRUPDO VSHHG
WKH WHPSHUDWXUH RI K\VWHUHVLV LV  @ WKH
@  \RX VKRXOG OLPLW WKH IUHTXHQF\ UDLVLQJ RI
@ \RX VKRXOG DGMXVW WKH FRPSUHVVRU
@ \RX VKRXOG DGMXVW WKH FRPSUHVVRU IUHTXHQF\ E\
IUR]HQSUHYHQWLQJ IUHTXHQF\OLPLWHG WHPSHUDWXUH
@ WKH WHPSHUDWXUH RI K\VWHUHVLV LV ž&  WKH
@ \RX VKRXOG OLPLW WKH IUHTXHQF\ UDLVLQJ RI
@  \RX VKRXOG DGMXVW WKH FRPSUHVVRU IUHTXHQF\
@ \RX VKRXOG DGMXVW WKH FRPSUHVVRU IUHTXHQF\ E\
@ >7
RXWHU SLSH &RROLQJ RYHUORDG IUHTXHQF\OLPLWHG
]
@”7 ,
RXWHU SLSH
@ ”>7 ],
RXWHU SLSH
45