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73
Installation and Maintenance
Service Manual
No.
0DOIXQFWLRQ
Name
'LVSOD\0HWKRGRI,QGRRU8QLW
'LVSOD\0HWKRGRI2XWGRRU
Unit
$&VWDWXV 3RVVLEOH&DXVHV
'XDO
Code
Display
,QGLFDWRU'LVSOD\GXULQJ
EOLQNLQJ21VDQG2))
0.5s)
,QGLFDWRUKDVNLQGVRI
GLVSOD\VWDWXVDQGGXULQJ
EOLQNLQJ21VDQG2))
0.5s
Operation
Indicator
Cool
Indicator
Heating
Indicator
Yellow
Indicator
Red
Indicator
Green
Indicator
35
Internal motor
(fan motor) do
not operate
H6
,QWHUQDOIDQPRWRUH[WHUQDOIDQ
PRWRUFRPSUHVVRUDQGHOHFWULF
KHDWHUVWRSRSHUDWLRQJXLGH
ORXYHUVWRSVDWSUHVHQW
location.
1. Bad contact of DC motor
IHHGEDFNWHUPLQDO
2. Bad contact of DC motor
control end.
3. Fan motor is stalling.
0RWRUPDOIXQFWLRQ
0DOIXQFWLRQRIPDLQERDUGUHY
GHWHFWLQJFLUFXLW
36
System is
abnormal
H4
OFF 1S
DQGEOLQN
6 times
'XULQJFRROLQJDQGGU\LQJ
RSHUDWLRQFRPSUHVVRUZLOOVWRS
ZKLOHLQGRRUIDQZLOORSHUDWH
'XULQJKHDWLQJRSHUDWLRQWKH
FRPSOHWHXQLWZLOOVWRS
operation.
5HIHUWRWKHPDOIXQFWLRQDQDO\VLV
RYHUORDGKLJKWHPSHUDWXUH
resistant)
37
Static
GHGXVWLQJ
protection
H2
38
'HV\QFKUR
nizing of
compressor
H7
'XULQJFRROLQJDQGGU\LQJ
RSHUDWLRQFRPSUHVVRUZLOOVWRS
ZKLOHLQGRRUIDQZLOORSHUDWH
'XULQJKHDWLQJRSHUDWLRQWKH
FRPSOHWHXQLWZLOOVWRS
operation.
5HIHUWRWKHPDOIXQFWLRQ
DQDO\VLV,30SURWHFWLRQORVV
RIV\QFKURQLVPSURWHFWLRQDQG
RYHUFXUUHQWSURWHFWLRQRISKDVH
FXUUHQWIRUFRPSUHVVRU
39
PFC
protection
HC
OFF 3S
DQGEOLQN
14 times
'XULQJFRROLQJDQGGU\LQJ
RSHUDWLRQFRPSUHVVRUZLOOVWRS
ZKLOHLQGRRUIDQZLOORSHUDWH
'XULQJKHDWLQJRSHUDWLRQWKH
FRPSOHWHXQLWZLOOVWRS
operation.
5HIHUWRWKHPDOIXQFWLRQDQDO\VLV
40
2XWGRRU'&
fan motor
PDOIXQFWLRQ
L3
OFF 3S
and
EOLQN
14 times
2XWGRRU'&IDQPRWRU
PDOIXQFWLRQOHDGWRFRPSUHVVRU
VWRSRSHUDWLRQ
'&IDQPRWRUPDOIXQFWLRQRU
V\VWHPEORFNHGRUWKHFRQQHFWRU
loosed
41
power
protection
L9
OFF 3S
DQGEOLQN
9 times
compressor stop operation and
2XWGRRUIDQPRWRUZLOOVWRS
VODWWHUPLQXWHVODWWHU
fan motor and compressor will
restart
7RSURWHFWWKHHOHFWURQLFDO
FRPSRQHQWVZKHQGHWHFWKLJK
power
42
,QGRRUXQLW
DQGRXWGRRU
XQLWGRHVQW
PDWFK
LP
OFF 3S
DQGEOLQN
16 times
FRPSUHVVRUDQG2XWGRRUIDQ
PRWRUFDQWZRUN
,QGRRUXQLWDQGRXWGRRUXQLWGRHVQW
PDWFK
43
)DLOXUHVWDUW
XS
LC
'XULQJFRROLQJDQGGU\LQJ
RSHUDWLRQFRPSUHVVRUZLOOVWRS
ZKLOHLQGRRUIDQZLOORSHUDWH
'XULQJKHDWLQJRSHUDWLRQWKH
FRPSOHWHXQLWZLOOVWRS
operation.
5HIHUWRWKHPDOIXQFWLRQDQDO\VLV
44
Normal
FRPPXQLFD
tion
contino-
XVO\
45 Defrosting
OFF 3S
DQGEOLQN
once
GXULQJ
EOLQNLQJ
ON 10s
and OFF
0.5s)
OFF 3S
DQGEOLQN
twice
'HIURVWLQJZLOORFFXULQKHDWLQJ
mode. Compressor will operate
ZKLOHLQGRRUIDQZLOOVWRS
operation.
,WVWKHQRUPDOVWDWH