Gree GWC24ACE-K6DNA1 A/I, Service Manual

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46
Installation and Maintenance
Service Manual
(12) Starting-up Failure Protection for Compressor
>A>"_>I>>"=_>"">">
_""FA%"_>+""FF"
F >'_"F">(P%% "F ">
(13) Out-of-Step Protection for Compressor
A>A ""F ">A _ A>A "_
A>A ""F­> >"=A>>_ ""F""=)>""
""=A>A > =B>/ _(P%%
>I_=A>>>A>A ""F "
(14) Voltage Abnormity Protection for DC Bus
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1.Over-High Voltage Protection for DC Bus:
)> > $F " *
$
·²*
$ ‘B ,
´_ >> ,% _ "" = $ A
">"­" ">"="*
$
±²*
$‘B
´ >
2.Over-Low Voltage Protection for DC Bus:
)> > $ F " *
$
±²*
$ + ,
´_ >> ,% _ "" = $ A"=
"­" ">"="*
$
·²*
$+
´ >
3.To detect voltage abnormity protect for DC bus when getting electricity:
)>>$F"*
$
·²*
$¸A#"
´_>>" _="F>">$->"
J FB>>"
(15)Abnormity Protection for Four-way Valve
* " > K ²
) F
±S
)
A
F $>> % %A+ "
U´__"F>A="F >F
>>A="­>"" =F >>A="=B
> _"F">(P%%
K ""F"> _""F ">"
"=>>"=P "P> S ">"=
U
(16) PFC Protection
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,% ­
)=>" ">,%, =B ""­
)>"" = ,% > _"F">(P%%­ ",%,
=,%>I
(17) Failure Detection for Sensor
FK >">""
FKR" >">F=I J
>_ "
7JK
SU " >">"­
SFU)" J>""
!<"K
SUA $ K "F "=" A ­
SFU A $ K " F A = S I " A
U
S U$ >"""
'$">,
SU+A > =I_)>AS"U_=
A_ " =B_=
= >"S>J"K "=F
A _ ""=" F>"U
SU+A > =I_ ""F""= >"