VRVS HeatPump ServiceManual

SiUS39 - 501

R410A Heat Pump 60HzRXYMQ-M Series

R410A Heat Pump60Hz

Part 1 General Information........................................................... 1

!"" # #

#

Part 2 Specifications .................................................................... 5 " $

$

%

Part 3 List of Electrical and Functional Parts ........................... 17 & ' ( )

)

*

Part 4 Refrigerant Circuit ........................................................... 23 + , -

+./0#$1-) -

' (& $ +./0#$1-) $

Part 5 Function ........................................................................... 27 " )

2 * " *

"( #3

# " 4( #

- ," ' #

# " ### " ##

# +" #-

## 5 ," #$

#- ("67+ " #%

#8 + #)

#$ "" ," #*

#% (9 : ( " -3

- ( -- ; ,<(( -

- &7(( -

-# 5 <,( "( -#

-- ( --

8 < -88 5" -8

8 ; ," (< -8

$ = > -$$ 5 (" -$

$ &( , ,5 -)

$# < + -*

$- ':( 8

$8 4 7" 7 ,'" 8

Part 6 Test Operation ................................................................. 53 " 8-

( 8-

" ?<(7 8%

(2& 8)

# ' , 8*# ' ,+ 8*

# ' , %3

## 5 , %$

Part 7 Troubleshooting............................................................... 87 < ,+ *3

<(2 *3

65 , ? + *

# 65 , ? + *

- " <+@"

" 2 *-

8 + *8

& *%

# (2 33

- < , <+ 3- AA0B C ( 5 3

- AA1B C(25 3#-# AA3B C 5 &=&>3-

-- AA6B C'='>&DE 3$

-8 AA7B C 7 ,'"=!> 3%

-$ AA9B C ,(

" 4=3> 3*

-% AAFB C5 &&

-) AAJB C " 5 5

-* AC4B C < =+>

; <, #

-3 AC5B C < =+#>F( " -

- AC9B C < =+> ! 8

- ACAB C < 5 <,! $

-# ACJB C <

+ %

-- AE1B C(25 )

-8 AE3B C! ; ,<(7 <*

-$ AE4B C! &7(7 < 3

-% AE5B C"&D

-) AE7B C ' #

-* AE9B C ,(

" 4 8

-3 AF3B C!5 <,( "" %

- AH9B C < =+>! )

- AJ3B C 5 <,( "< =+#>*

-# AJ5B C < =+> ( " #3

-- AJ6B C < =+->

; <, #

-8 AJ9B C ,; <,

F( "< =+8>#

-$ AJAB C ; ,<( ##

-% AJCB C &7( #8

-) AL4B C + ,'

"+ #$

-* AL5B C"! #%

-#3 AL8B C!#)

-# AL9B C" -3

-# ALCB C 7

(2-

-## AP4B C + ,'

"+ -#

-#- APJB C' '5 --

-#8 AUOB C&7(5"5+ ,

<, " 4' -8

-#$ AU2B C(7""

' -$

-#% AU3B C<D" -)

-#) AU4B 7

-*

-#* AU5B C 7+

8

--3 AU8B C 7

+8

-- AU9B C 7

< 8#

-- AUAB"" E

+ 88

--# AUCB!5" +8$

--- AUEB 7+

8%

--8 AUFB 8*

--$ AUHB E+ ,!

$3

8 < , <+ $8 AUEB 7+

$

8 AM1B(25 $#8# AM8B 7"

: $-

8- AMAB"" "

: $8

88 AMCB!5" E"" ,$%

$ < , < ''$)$ " &"2 D$)

$ 5 "A :B2 D=+" ,2 D> %3

$# 5 "A :B2 D=+"52 D>%#

% < ,=(C< > %-% AUEB 7+

%-

% AM1B(25 %$%# AM8B 7"

: %%

%- AMAB"" "

: %)

%8 AMCB!5" E"" ,)3

) <D)

Part 8 Appendix ........................................................................ 183 ( " ,5 ,)-

)-

)8

? ,5 ,+)$ )$

)%

# < + "< *3

- ( *

Part 9 Precautions for New Refrigerant (R410A) .................... 193 ( 7+ ,=+-3!> *-

*-

*$

Index ............................................................................................ i

Drawings & Flow Charts .................................................................v

2<7 , ," 7D

< A BA B<A B

" " << G <

7<A B

<7<E<

7

!<" ,

< 7< <

<" ,<7< 7< < "

< "<

<"< <7 <

< <DE

< <7 <

!<" 7D "E" <<

9 ""E " < " ,<"<

2 <"7",<",D ,<9 "" ?D ,<9 "< "7"" <D """7<9 "<" " ,< E< <, <9 "

< ,, <, ,<" 7DE<< <, , ,,< ,,

?< ,< <," "<"<7 E< ,,"76 " < , , <"E< ,, , ,< <,7<<" " E G

< ,,D ,<" 7DE << ,,, ,7<

<"6"" "" < ,<6, < "< 2 <,<" " ," 7D!<," <D

5"< " ",, ,",, ,<"7",(,, ,",, ,<"7","<9 " <D

5" < "7 <7<?D ,<9 "7 <7< <D

5< "< ,7?< ,< 7 <7 <D

2" <, ,7<" ,<9 " < 7"E <D

2<"77 <",<"77< ,<9 "< < ,<"E G

5 < 7< , <7 < " 7<

2<D<< , , <7 ," 7D?D ,< 7<< , , <

<7 76 " ,<7 ,

2" < " <"" """ " 7D" <9 "< """ " <DE <,

?< ,<9 "ED<<7 < ,<7 <<7 ,<<9 "< < ,< < 7D E<9 " G

2 <" ,<" < "" <9 "E , G

' ,

2 <" < 7 7< E G

' ,

2 "7 <9 "E7<< < 9 "E< 7 ,, < 7< , 7D "7 " "" 7D <D

2<" 7< D< <""<< " ,<< "" <,

?< ,<7< ED<< << ""E< <DE <,

5, <"75, "7 <D ( ,< <"7E< ," ,<"7,<

5 ,<<<" , < , < , ,E < ,<"E ,9 ", G

< ,,DE<D" <, ,< ,!<, , ,ED<< ,D<D<" 7D""E"""67< E"< ,,D , << ,, <E , ,7< E<<<E,

?<" ,< <E "<"< 77 , < 77< E

D,D " ,< < E" <D

5 <9 " "7<< " ,D ,D < E

2 <"D ,< ""<"D , ""E7<7<

' ,

<DD<<"7", E< <", "7<7<",< E <D

< <" < ,<

<7C

!

<"77 << E"<5,7 <DE <,

5G "7 E<<"77 << "" E <DE <,

<D <"7 ""E < < " "" <, E <D

< "<E" "< E , G

<D<, ,E" <9 " "","", , <D

2< <" ED<< << ,<' <D

2<D< ,< <" ' ,<7<7<

"

5 "

"#

!AB" < "E<<E< " D

!A B 7<< ,<<E<,< " E,9 "EE, "<=">"

? , !A7 ,B 7<< ," G

+ !AB, <<" < < E7<<<7 " "

F

Part 1General Information

!"" # #

#

$%"& '(

$%"& '(

( )* +

, %&-%

" (7""

,"= '7>

'.'0 ) - #3 #$ H

4I

,2 6"

'.0 ) - #3 #$ -)

,5"

'.0 H H H #3 #$ -)

,""

'.;0 H - H #$ H

?" '.!0 ) - H H H

' ," '.&0 ) - H H H

' ,"

'.0 ) - H H H

(7""

;("+./0 #$

4I+./0 -)

4IC φ E3)J#34E$3;:

F

./ %0

./ %0

( +./0#$4I+./0-)4I

,"= 7>

'.'04I'.'0)4I'.'0-4I'.'0#34I'.'0#$4I

?"

'.!04I'.!0)4I'.!0-4I

, 6 "

'.04I'.0)4I'.0-4I'.0#34I'.0#$4I'.0-)4I

' ,"

'.&04I'.&0)4I'.&0-4I

,"

'.0#34I'.0#$4I'.0-)4I

,"

'.04I'.0)4I'.0-4I

,""

'.;04I'.;0-4I'.;0#$4I

F #

./ %0

- F

" 8

Part 2Specifications

" $ $

%

(

"# "C)3K'52$%K'?2"C*8K'529 " " ,,<C8E C3

"C%3K'52"C-%K'52-#K'?29 " " ,,<C8E C3

# !< < EI2)$$ 5 ," E

<7<< ,<

$%"& 12$34$56 12$3 7$56

," 2< #$E333 -)E333

; ," 2< -3E333 8-E333

, ?< =8/%8> ?< =8/%8>

5 C=;L?L5> 868$ L #86%$ L 68) 868$ L #86%$ L 68)

; <, ' '

"

" ; " ; "

( 5 " #< $)#% $)#%

+ " $-)3 $-)3

"=D?$3">

D? # #

,< 5 5

'

" ("' ("'

" D? 33%3 L 33%3 L

! '7+ #E%-3 #E%-3

5 5 5 5 5

,( "

& 9 ( " φ#)3=' > φ#)3=' >F( " φ8)3=' > φ8)3=' >

< ? ,<=> & #3 #3

#&=+4> 2! 8) 8)

5 ; ,<(7 <E'5 (E

(E' (,E'; ,<(7 <E'5 (E

(E' (,E'

5< +5 , +5 ,

" M *J33 *J33

+ ,

+ , +-3! +-3!

<, & ) )

" 4 " 4

+ , +<"" +<""

! E" E ,E

" E" E ,E

"

57 , -53-%#%*

$ "

%$8)$%9%,+

"# ," <7 , C

+ "C)3K'52E$%K'?2

"C*8K'52

9 " " ,,<C8=; :>

< ," <7 , C

+ "C%3K'52

"C-%K'52E-#K'?2

9 " " ,,<C8=; :>

# " E , ,= < ,> <

- !< < EI2)$$ 5 ," E

<7<< ,<

$% 9193$56 91937$56 9193 $56

," 2< E333 )E333 -E333

; ," 2< #E833 3E333 %E333

, F :( F :( F :(

5 C=;L?L5> *6)L##6)L##6) *6)L##6)L##6) *6)L##6)L##6)

=' >

+7L,L'( L)L% L)L% L)L%

'! N #8$ #8$ #8$

'

0-82- 0-82- 0-82-

" ' ' '

" ;( 33$ 33$ 33$

! '7+=;&> -$3#83 8%3#*3 $%3-*3

5 5 5 5 5 5 5

" "< ,; ,

"< ,; ,

"< ,; ,

! ,< '('(<

'('(<

'('(<

( " ,

& 9 ( " φ-=' > φ-=' > φ#)=' >F( " φ=' > φ=' > φ8)=' >

5 ( " 4(8

5 6-5

4(8 5 6-

5

4(8 5 6-

5

< ? ,<=> & 88 88 88

-&=;&> 2! #) ##) #-*

5 'E<(' 'E<(' 'E<('

+ , " 4 " 4 " 4

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

5 (=" >

2/8O6? 2/8O6? 2/8O6?

?< =3/*38> ?< =3/*38> ?< =3/*38>

5 C=;L?L5> 68)L#%6#)L#%6#) 68)L#%6#)L#%6#) 68)L#%6#)L#%6#)

! ' +

=7 <+ >+

=7 <+ >+

=7 <+ >

? ,< &

!

" E E("" E5 <E"E?<E ,"E"E7E ,

" E E("" E5 <E"E?<E ,"E"E7E ,

" E E("" E5 <E"E?<E ,"E"E7E ,

57 , C#53-$)$

" %

%$8)$%9%,+

"# ," <7 , C

+ "C)3K'52E$%K'?2

"C*8K'52

9 " " ,,<C8=; :>

< ," <7 , C

+ "C%3K'52

"C-%K'52E-#K'?2

9 " " ,,<C8=; :>

# " E , ,= < ,> <

- !< < EI2)$$ 5 ," E

<7<< ,<

$% 9193$56 91934$56

," 2< #3E333 #$E333

; ," 2< #-E333 -3E333

, F :( F :(

5 C=;L?L5> 6#)L##6)L##6) 6#)L##6)L##6)

=' >

+7L,L'( LL% LL%

'! N 8#8 8#8

'

0-8!% 0-8!%

" ' '

" ;( 3 3

! '7+=;&> **3%3 **3%-3

5 5 5 5 5

" "< ,; , "< ,; ,

! ,< '('(<

'('(<

( " ,

& 9 ( " φ#)=' > φ#)=' >F( " φ8)=' > φ8)=' >

5 ( " 4(8

5 6-5

4(8 5 6-

5

< ? ,<=> & $$ $$

-&=;&> 2! #)# -3##

5 'E<(' 'E<('

+ , " 4 " 4

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

5 (=" >

2/8O6? 2/8O6?

?< =3/*38> ?< =3/*38>

5 C=;L?L5> 68)L#%6#)L#%6#) 68)L#%6#)L#%6#)

! ' +

=7 <+ >+

=7 <+ >

? ,< &

! " E E("" E5 <E"E?<E ,"E"E7E ,

" E E("" E5 <E"E?<E ,"E"E7E ,

57 , C#53-$)$

) "

%$:%8

"# ," <7 , C

+ "C)3K'52E$%K'?2

"C*8K'52

9 " " ,,<C8=; :>

< ," <7 , C

+ "C%3K'52

"C-%K'52E-#K'?2

9 " " ,,<C8=; :>

# " E , ,= < ,> <

- " <,<,< E< "

P; ,< "QQ&7 "P

8 !< < EI2)$$ 5 ," E

<7<< ,<

$% 913$56 9137$56 913 $56

," 2< E333 )E333 -E333

; ," 2< #E833 3E333 %E333

, F :( F :( F :(

5 C=;L?L5> 6%)L68)L#6 6%)L%6L#6 6%)L#*6#)L#6

=' >

+7L,L'( #L-L- #L-L- #L-L-

'! N 3*8 - #)

'

5);#! 5);! 5);!

" ' ' '

" ;( 33% 3 3%

! '7+=;&> #-3#3 8#3#*3 %-3-*3

(-

!9 3#%63*633$ 3#)63*633$ 3863*633$

5 5 5 5 5 5 5

" "<

,; , "<

,; , "<

,; ,

! ,< F' F' F'

! ' + =7 <+ > + =7 <+ > + =7 <+ >

( " ,

& 9 ( " φ-=' > φ-=' > φ#)=' >

F( " φ=' > φ=' > φ8)=' >

5 ( " 4(8

= 5 6-5 >4(8

= 5 6-5 >4(8

= 5 6-5 >

< ? ,<=> & $* %# *8

8&=;&> 2! -#8 --#) --#)

5 'E

<(''E

<(''E

<('

+ , " 4 " 4 " 4

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

5 (=" >

2/2#5I? 2/2-85I? 2/2%5I?

( ?< =3/*38> ?< =3/*38> ?< =3/*38>

5 C=;L?L5> 6)L868)L*68) 6)L#6L*68) 6)L-#6-L*68)

? ,< & $$ %% **

!

" E E("( E5 ;E"E ' ,E ,(E"E7E?<

" E E("( E5 ;E"E ' ,E ,(E"E7E?<

" E E("( E5 ;E"E ' ,E ,(E"E7E?<

57 , C#53-$)-

" *

%$:%8

"# ," <7 , C

+ "C)3K'52E$%K'?2

"C*8K'52

9 " " ,,<C8=; :>

< ," <7 , C

+ "C%3K'52

"C-%K'52E-#K'?2

9 " " ,,<C8=; :>

# " E , ,= < ,> <

- " <,<,< E< "

P; ,< "QP

8 !< < EI2)$$ 5 ," E

<7<< ,<

$% 913$56 9134$56 913 7$56

," 2< #3E333 #$E333 -)E333

; ," 2< #-E333 -3E333 8-E333

, F :( F :( F :(

5 C=;L?L5> 6%)L886)L#6 6%)L886)L#6 6%)L886)L#6

=' >

+7L,L'( #L-L- #L-L- #L-L-

'! N #$- #$- #$-

'

#5);! #5);! #5);!

" ' ' '

" ;( 3#3 3#3 3#3

! '7+=;&> *83%3 **3%-3 E#33*83

(-

!9 38%63#* 38%63#8 3#-633

5 5 5 5 5 5 5

" "<

,; , "<

,; , "<

,; ,

! ,< F' F' F'

! ' + =7 <+ > + =7 <+ > + =7 <+ >

( " ,

& 9 ( " φ#)=' > φ#)=' > φ#)=' >

F( " φ8)=' > φ8)=' > φ8)=' >

5 ( " 4(8

= 5 6-5 >4(8

= 5 6-5 >4(8

= 5 6-5 >

< ? ,<=> & * *

8&=;&> 2! -8#* -8#* -)-#

5 'E

<(''E

<(''E

<('

+ , " 4 " 4 " 4

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

5 (=" >

2/285I? 2/285I? 2/285I?

( ?< =3/*38> ?< =3/*38> ?< =3/*38>

5 C=;L?L5> 6)L8*L*68) 6)L8*L*68) 6)L8*L*68)

? ,< & - - -

!

" E E("( E5 ;E"E ' ,E ,(E"E7E?<

" E E("( E5 ;E"E ' ,E ,(E"E7E?<

" E E("( E5 ;E"E ' ,E ,(E"E7E?<

57 , C#53-$)-

3 "

%$;8

"# ," <7 , C

+ "C)3K'52E$%K'?2

"C*8K'52

9 " " ,,<C8=; :>

< ," <7 , C

+ "C%3K'52

"C-%K'52E-#K'?2

9 " " ,,<C8=; :>

# " E , ,= < ,> <

- " <,<,< E< "

P; ,< "QP

8 ! E" <<

<=, <>83M

$ !< < EI2)$$ 5 ," E

<7<< ,<

$% 91$3$56 91$34$56 91$3 7$56

," 2< #3E333 #$E333 -)E333

; ," 2< #-E333 -3E333 8-E333

, F :( F :( F :(

5 C=;L?L5> 86#)L)6#)L%6) 86#)L-#6#-L%6) 86#)L-#6#-L%6)

=' >

+7L,L'( #L$L# #L$L# #L$L#

'! N *8 #-# #-#

'

55#!!4 55#!F4 55#!'4

" ' ' '

" ;( 3 3#$ 38)

! '7+=;&> $*38$8 E33)3 E%3E33

!9 3$$63-# 3%63-# 363%

5 5 5 5 5 5 5

" "<

,; , "<

,; , "<

,; ,

! ,< F' F' F'

! ' 8 8 8

( " ,

& 9 ( " φ#)=' > φ#)=' > φ#)=' >

F( " φ8)=' > φ8)=' > φ8)=' >

5 ( " 4(8

5 6-5

4(8 5 6-

5

4(8 5 6-

5

< ? ,<=> & ** #* --

$&=;&> 2! -8- -8- -)-8

5 'E

<'''E

<'''E

<''

+ , " 4 " 4 " 4

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

!

" E E5 ;E"E ' ,E ,(E"E

7

" E E5 ;E"E ' ,E ,(E"E

7

" E E5 ;E"E ' ,E ,(E"E

7

57 , C#53-$)8

"

%8

"# ," <7 , C

+ "C)3K'52E$%K'?2

"C*8K'52

9 " " ,,<C8=; :>

< ," <7 , C

+ "C%3K'52

"C-%K'52E-#K'?2

9 " " ,,<C8=; :>

# " E , ,= < ,> <

- !< < EI2)$$ 5 ," E

<7<< ,<

$% 91<3$56 91<3 $56 91<34$56

," 2< E333 -E333 #$E333

; ," 2< #E833 %E333 -3E333

, ?< =3/*38> ?< =3/*38> ?< =3/*38>

5 C=;L?L5> %6$L#%6#$L$6#- %6$L886)L$6#- %6$L$68)L$6#-

=' >

+7L,L'( LL8 #LL8 LL8RL3L8

'! N *$ #8 #$$R*8

'

#5O!! #5O!! H

" ' ' '

" ? $ #3 #3

! '7+=;&> -3#-3 %3$33 )#3$%3

5 5 5 5 5 5 5

" "<

,; , "<

,; , "<

,; ,

! ,< F? F? F?

! ' + =7 <+ >

( " ,

& 9 ( " φ-=' > φ#)=' > φ#)=' >

F( " φ=' > φ8)=' > φ8)=' >

5 ( " 4(3

5 5 #-

4(3 5 5 #-

4(3 5 5 #-

< ? ,<=> & 88 )3 *3

-&=;&> 2! - -- -$

5 'E

<(''E

<(''E

<('

+ , " 4 " 4 " 4

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

!

" E E5 ;E("(

E"E ' ,E"E?<

" E E5 ;E("(

E"E ' ,E"E?<

" E E5 ;E("(

E"E ' ,E"E?<

57 , C-53-*#$

"

%%$8

"# ," <7 , C

+ "C)3K'52E$%K'?2

"C*8K'52

9 " " ,,<C8=; :>

< ," <7 , C

+ "C%3K'52

"C-%K'52E-#K'?2

9 " " ,,<C8=; :>

# " E , ,= < ,> <

- !< < EI2)$$ 5 ," E

<7<< ,<

$% 9103$56 91037$56 9103 $56

," 2< E333 )E333 -E333

; ," 2< #E833 3E333 %E333

, ?< =#3/)838> ?< =#3/)838> ?< =#3/)838>

5 C=;L?L5> Q#)L#Q-L* Q#)L-Q#)L* Q#)L-Q#)L*

=' >

+7L,L'( L-L% L-L% L-L%

'! N %# * *

'

0&*$$ 0&*$)$ 0&*$)$

" '7' '7' '7'

" ;( 338- 338) 338)

! '7+=;&> #33)3 833-33 $#8-%3

5 5 5 5 5 5 5

" "<

,; , "<

,; , "<

,; ,

! ,< '('(<

'('(<

'('(<

! ' + =?<> + =?<> + =?<>

( " ,

& 9 ( " φ-=' > φ-=' > φ#)=' >

F( " φ=' > φ=' > φ8)=' >

5 ( " 4(#

= 5 $5 >4(#

= 5 $5 >4(#

= 5 $5 >

< ? ,<=> & 8 # #

-&=;> 2! #) -# -%

5 ' ' '

+ , " 4 " 4 " 4

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

!

" E E (E("( E E"E7

" E E (E("( E E"E7

" E E (E("( E E"E7

57 , #53-$3#)

" #

9% 8

"# ," <7 , C

+ "C)3K'52E$%K'?2

"C*8K'52

9 " " ,,<C8=; :>

< ," <7 , C

+ "C%3K'52

"C-%K'52E-#K'?2

9 " " ,,<C8=; :>

# " E , ,= < ,> <

- !< < EI2)$$ 5 ," E

<7<< ,<

$% 91!3$56 91!37$56 91!3 $56

," 2< E333 )E333 -E333

; ," 2< #E833 3E333 %E333

, ?< =8/%8> ?< =8/%8> ?< =8/%8>

5 C=;L?L5> #Q8)L--Q%)L)Q#- #Q8)L88Q%)L)Q#- #Q8)L88Q%)L)Q#-

=' >

+7L,L'( #L-L% #L-L% #L-L%

'! N 8 #3- #3-

'

5-2# 5-23 5-23

" ' ' '

" ;( 33#- 33-% 33-%

! '7+=;&> )33 -*3#)3 8$3-3

5 5 5 5 5 5 5

" "<

,; , "<

,; , "<

,; ,

! ,< F' <' F' <' F' <'

! ' + =7 <+ > + =7 <+ > + =7 <+ >

( " ,

& 9 ( " φ-=' > φ-=' > φ#)=' >

F( " φ=' > φ=' > φ8)=' >5 ( " φ%#5=4 < > φ%#5=4 < > φ%#5=4 < >

< ? ,<=> & $$ )3 )3

-&=;> 2! #$ -3 -

5 'E

<(''E

<(''E

<('

+ , " 4 " 4 " 4

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

!

" E E ' ,E5 ;E"E7E?<E&!G7

" E E ' ,E5 ;E"E7E?<E&!G7

" E E ' ,E5 ;E"E7E?<E&!G7

57 , #53-8$-3

- "

%9% 8

"# ," <7 , C

+ "C)3K'52E$%K'?2

"C*8K'52

9 " " ,,<C8=; :>

< ," <7 , C

+ "C%3K'52

"C-%K'52E-#K'?2

9 " " ,,<C8=; :>

# " E , ,= < ,> <

- !< < EI2)$$ 5 ," E

<7<< ,<

$% 91"3$56 91"37$56 91"3 $56

," 2< E333 )E333 -E333

; ," 2< #E833 3E333 %E333

, F :( F :( F :(

5 C=;L?L5> -L-Q)L)Q8) -L8#Q)L)Q8) -L8#Q)L)Q8)

=' >

+7L,L'( #L-L% #L-L% #L-L%

'! N 8 #3- #3-

'

5-2# 5-23 5-23

" ' ' '

" ;( 33#- 33-% 33-%

! '7+=;&> )33 -*3#)3 8$3-3

5 5 5 5 5 5 5

" "<

,; , "<

,; , "<

,; ,

! ,< F' <' F' <' F' <'

! ' + =7 <+ > + =7 <+ > + =7 <+ >

( " ,

& 9 ( " φ-=' > φ-=' > φ#)=' >

F( " φ=' > φ=' > φ8)=' >5 ( " φ%#5=4 < > φ%#5=4 < > φ%#5=4 < >

< ? ,<=> & $$ )3 )3

-&=;> 2! #$ -3 -

5 'E

<(''E

<(''E

<('

+ , " 4 " 4 " 4

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

+./0#$4I+./0-)4I

!

" E E ' ,E5 ;E"E7E?<E&!G7

" E E ' ,E5 ;E"E7E?<E&!G7

" E E ' ,E5 ;E"E7E?<E&!G7

57 , #53-8$-)

" 8

$ "

& ' ( %

Part 3List of Electrical and

Functional Parts

& ' ( ) )

*

!.% %9%

!.% %9%

(

+D

=(2 >#$ -)

"

"

I33'45OS-#D?

H"

D<=4> ; ##? !(.$!

' '1' 33%D? H

6 H #! H

' "

" = >

,/

-33" !(.$!

; , (

" =>

,/

( !(.)!

; , 3"

=;,> / 4$350 !(.!

=+ ,<,>

/ 4$350 !(.#!

-7 /# 4-333 !(.8!

(6"

(7 <=4> (;!26-23

C8)3R36" ''C-#8T" !(.$3!

' ", H '(F;6#58)J$%K' H

(=;(> (; ()38!3J$3" !(.-$!

(=&(> (& ()38!6%J-%" !(.-8!

< (2

' + #8J#$3DΩ !(.--!

' " " + #8J#$3DΩ !(.#%!6(

' <," " +# #8J-33DΩ !(.#-!6(

'< <, +- #8J#$3DΩ !(.#%!#6-(

' ,< <,

+8 #8J#$3DΩ !(.#%!86$(

) & ' (

!.% %9%

(

+D'.'04I

'.'0)4I

'.'0-4I

'.'0#34I

'.'0#$4I

+

? +

2+%

" ? +

2+%)

' 'φ-8?$( φ*3?$(

<($$K'C''%$K'C

" E #8µ' -834! 83µ' -834!

5 (" ((&56#35

<'*#K'

7 , (#8;!U#(33%-)6V

<

< = ! > +)$3!6φ-&83

3DΩ=%%K'>

< =; <,; ,<">

+#)$386#φ)&$#3

3DΩ=%%K'>

< =; <,>

+)$3!6#φ$&$#3

3DΩ=%%K'>

<

'7 < & '63

' ' 8348!φ8 + +8;8+3

(

+D'.04I

'.0)4I

'.0-4I

'.0#34I

'.0#$4I

'.0-)4I

+

? +

2+% "

? +

2+-)

' 'φ83?-( φ)8?-( φ8?-( φ8?-(

<'#38$K'

5 (" ((&56#35

<'##$K'

<

< = ! > +)$36#φ-&$#3

3DΩ=%%K'>

< =; <,; ,<">

+#)$386%φ)&$33

3DΩ=%%K'>

< =; <,>

+)$3!6%φ$&$33

3DΩ=%%K'>

<

'7 < & '63

' ' 8348!φ8 + +8;8+3

& ' ( *

!.% %9%

(

+D'.0#34I

'.0#$4I

'.0-)4I

+

? +

2+%

" ? +

2+-)

' '

φ$3? φ%3? φ-#3?<"%8K'C''))$K'C

" ' + $µ'-834 *µ'-834 )µ'-834

<

< = ! > +)$3!68φ-&333

3DΩ=%%K'>

< =; <,; ,<">

+#)$38!6-φ)&)33

3DΩ=%%K'>

< =; <,>

+)$3!6-φ$&)33

3DΩ=%%K'>

<

'7 < & '63

' ' 8348!φ8 8343!φ8 + +8;8+3

(

+D'.;04I

'.;0-4I

'.;0#$4I

+

? +

2+% "

? 2+%)#

' 'φ$#? φ#3?

<"$$K'C''%$K'C

" ' + #3µ'6-834 *3µ'6-834

7 , )6&U#(38)%86V

!33J-34

<

< = ! > +)$3!6φ-&83

3DΩ=%%K'>

< =; <,; ,<">

+#)$386$φ)&W83

3DΩ=%%K'>)$386$φ)&W83

3DΩ=%%K'>

< =; <,>

+)$3!6$φ$&W83

3DΩ=%%K'>)$3!6$φ$&W83

3DΩ=%%K'>

<' ' 8348!

+ +8;8+3

(

+D'.!04I

'.!0)4I

'.!0-4I

+

? +

2+% "

? +

2+%)) "

' 'φ-3? φ-#?

<"$$K'C''%$K'C

7 , (-U#2-3###6V

!33J-34'23U#2-38836V

!33J-34

<

< = ! > +)$36φ-&-33

3DΩ=%%K'>

< =; <,; ,<">

+#)$386φ)&-33

3DΩ=%%K'>

< =; <,>

+)$36φ$&-33

3DΩ=%%K'>

<'7 < & (

' ' 834#8!

3 & ' (

!.% %9%

(

+D'.&04I

'.&0)4I

'.&0-4I

+

? +

2+%

" ? +

H

' '

φ8? φ#8?<"%8K'C''-)K'C

" ' + 38µ'6-834 8µ'6-834 3µ'6-834

<

< = ! > +)$36$φ-&83

3DΩ=%%K'>

< =; <,; ,<">

+#)$386*φ)&833

3DΩ=%%K'>

< =; <,>

+)$3!6*φ$&833

3DΩ=%%K'>

<' ' !8348!

+ +8;8+3

(

+D'.04I

'.0)4I

'.0-4I

+

? +

2+%

" ? +

H

' '

φ8? φ#8?<"%8K'C''-)K'C

" ' + 38µ'6-834 8µ'6-834 3µ'6-834

<

< = ! > +)$36$φ-&83

3DΩ=%%K'>

< =; <,; ,<">

+#)$386*φ)&833

3DΩ=%%K'>

< =; <,>

+)$3!6*φ$&833

3DΩ=%%K'>

<' ' !8348!

+ +8;8+3

& ' (

!.% %9%

& ' (

Refrigerant Circuit 23

Part 4Refrigerant Circuit

+ , - +./0#$1-) -

' (& $ +./0#$1-) $

12$34= 7$

, ,

G'

! "=4>" "9 78;:%%;: ,< %"

5''

< < <, ,"E< ")6" " ,<

/ " = C4>

?< < ," E( "" D"<"<, < <,

' / " =C4>

( "" D"<"<, ,< <,

F / =;,C4(> "<7" ,

I / =+ , <, ,C4F>

,

/# '7 7 <<" 7 ,< ,

(; ; ,<" < ,<"

(& &7" 7"

( (;;("7 <='4">

"< < ,<"7< E< 7 < < ,<"8)3" "<""

H ' ","< "7<< , <E< "<", "8)$%K'<" <"<

H(, ,=+ <," ">

< ""*3#*3" " " E< , , "< " " ,

+ < = C> "E <," ""E<

+ < = " "C> " ""ED"< "<, < ," E<

# +#< =4 <," "C >

<," ""ED<"" "E<

- +-< =; <, C>

9 " "" < <,E ," E<

8 +8< = ,< <,," "C<>

," ""<" ,< <,ED"<"<,< ,< <,E<

- + ,

Filter

Low pressure

High pressure

Filter

Capillarytube

sensor

sensorS

P

Stop valve (With service port on field piping side φ6.4mm flare connection)

SP

Filter

SV

Oil

sepa

rato

r

Four way

Solenoid

valve

SV

Pressureregulating valve

valve

Solenoid Fusibleplugvalve

Compressor

Filter

Check

Check

valve

valve

HPS

Rec

eive

r

switchHigh pressure

Check

Check

valve

valve

expansion valveElectronic

FilterHeatexchangerpipe

expansion valveElectronic

heat exchangerDouble pipe

Filter

Heat exchanger

Service port

O

J S

F

E

D

A

P

T

M

N

G

D

C : 3D047385

+ , 8

9% !

9% !

12$34= 7$

: *,

1PN06261B

Solenoid valve

(Connector color : PINK)

Y2S

S1NPHHigh pressure sensor lead wire

(Connector color : RED)(Low voltage)

S1NPLLow pressure sensor lead wire

(Connector color : BLUE)(Low voltage)

(Connector color : BLUE)(High voltage)

(Connector color : PINK)(High voltage)

Y3S

Y2S

Four way valve lead wire

Y1E Electronic expansion valve

Y2E Electronic expansion valve

Solenoid valve lead wire

(Connector color : WHITE)(High voltage)

Y1S Solenoid valve lead wire

(Connector color : WHITE)

Y1S Solenoid valve

(Connector color : GRAY)(High voltage)

E1HC Crankcase heater lead wire

Four way valve coilY3S

Discharge pipe thermistorlead wire

R3T

S1NPHHigh pressure sensor

(Connector color : RED)

S1NPLLow pressure sensor

(Connector color : BLUE)

$ + ,

Function 27

Part 5Part 5Part 5Part 5Function

" )

2 * " *

"( #3

# " 4( #

- ," ' #

# " ### " ##

# +" #-

## 5 ," #$

#- ("67+ " #%

#8 + #)

#$ "" ," #*

#% (9 : ( " -3

- ( -- ; ,<(( -

- &7(( -

-# 5 <,( "( -#

-- ( --

8 < -88 5" -8

8 ; ," (< -8

$ = > -$$ 5 (" -$

$ &( , ,5 -)

$# < + -*

$- ':( 8

$8 4 7" 7 ,'" 8

( $

( $Operation instop mode

Pressureequalization

prior to startup

Startup control• Cooling startupcontrol

• Heating startupcontrol

Oil return INconditions are met.

Operation mode change

Oil return operation

Pump-downresidual

operation

Restart standby(Compressor stop)

Yes

Yes

No

No

Malfunction/Standby

Indoor unit stop orthermostat OFF

Normal operation• Compressor PI control• Electronic expansion valve PI control

• Protection control

Indoor unit thermostat ON

Defrost INconditions are met.

No

YesDefrosting operation

Cooling or heatingoperation

Indoor unit thermostat ON



Malfunction/Standby

Malfunction/Standby

Note:In the event indoor unit stops or the thermostatturns OFF while in oil return operation ordefrosting operation, pump-down residualoperation is performed on completion of the oilreturn operation or defrosting operation.

Malfunction/Standby

(V3152)

) '

: %

: %

" &%( %(

<(

∗ ; ," ")$°'52

! " +D

" "(

< ,<"" E7"" E <," """ E"" ,9"" 7 < "

,

'7 ''

" =4> -33"

, " =4>

(

;,"=4(> ''< 7 <7""

+ , <, ,=4F> '' H

! " +D

" "(

< ,<"" E7"" E <," """ E"" ,9"" 7 < "

()<"<,(7 << ,<"X-8-"

'7

" =4> (

, " =4>

3"

;,"=4(> ''< 7 <7""

+ , <, ,=4F> '' H

' *

: %

& %

& %

<"" ( , ,

" ,< ," "

>% ?

>< ?

"" G< ,=>

C&7"9 "=K'>

8)&+ C,=4 " , ,E" ,9E>

& =>= ,>

;

#%8 -# -)

"" G< ,=>

C; ,<"9 "=K'>

8 C,=4 " , ,E" ,9E>

& =>= ,>

;

3*8 8 3

+./0#$1-)

( 4 8;: 8%;:# $;:- $);:8 %-;:$ );:% ));:) *$;:* 3-;:3 3;:

( 4 $;: -;:# ##;:- -#;:8 8);:$ $8;:% %%;:

∗ "" "<<< G<" ,

#3 '

: %

.% ./5%* %

$.% ./5%*.5 %

< " =/>( <"

"<,=;> ,< ," D <

< <,=">

<" <""<, 8KE

" ,< <," ""<, "

-%.% ./5%*.5 %

D(< " =/>D"<"<,=;>

<," "<" << ,< <,

;W6 ;C""<,=K'>

C " ""< +=K'>

C&7"9 "=K'>

;W< 6 ;C"<,"=°'><C " ""7 <<

< +8=°'>C&7"9

"=°'>

' #

: %

%( 9 % ," 7 <7 "E< " <

9 7 < 9 "< ,<" ,

STEP8

STEP7

STEP6

STEP5

STEP4

STEP3

STEP2

STEP1

Pc>450 psi

Pc<261 psi Pc>348 psi







STEP0


850 rpm

715 rpm

580 rpm

445 rpm

360 rpm

285 rpm

400 rpm

250 rpm

0 rpm

M1F

815 rpm

680 rpm

545 rpm

410 rpm

325 rpm

250 rpm

0 rpm

0 rpm

0 rpm

M2F

STEP3

STEP4

STEP5

STEP6

STEP7

STEP8

STEP2

STEP1

STEP0

Cooling

Fan Steps

850 rpm

250rpm

815rpm

M1F

0 rpm

M2F

STEP8

STEP1

Heating

There are 2 steps in heating operation.

Reference

Pc: HP pressure sensor detection value

(V3172)

# '

% %

% %

% E7 , " ,<<"D 9

< D!E<" <7

%%(

%<( )<'&%%+

! " +D

" 5 """ ,9 "3 (6(X8)"

; ,<" " (36" 7 <(X#38" 6"7 <(Y$"

'7 '' " =4> -33" , " =4>

3"

;,"=4(> + , <, ,=4F> ''

, •#3•(6(X8)" •-8

! " +D

" 5 """ ,9 "3 (6(X8)"

() '7 " =4> )3" , " =4>

3"

;,"=4(> + , <, ,=4F> ''

, •-8•(6(X8)" •8

Z=

Z=

' ##

% %

(% ( 7<"< 6 ," E

< <"7

(% ( %( > ?

< , 6 ," ,7 ,

, "

=!<"7 E ," ,6 <9)

<>

E , " EE<"

""

" " (6 6"

" "" -;: -;:

' ' '

'7 '' '' ''

" =4>

-33" -33" -33"

, " =4>

; 3" 3"

;,"=4(> ''

+ , <, ,=4F>

'' '' ''

, 3•$ •6Y8 #

, "

'

< ! 4

"" , ''

<'' ''

"

< " ,

"" , 33"

<'' 33"

#- '

% %

(% ( <( > ?

<< , 6 ," ,7 ,

, "

=!<"7 E ," ,6 <9)

<>

E , " EE<"

['<"" , 6 ," < 6 ," E< 6

," <" 6 ,E<""

<, ,<7

! ""

" " (6 6"

" "" -;:6" 8;:=(6(X8)" >

() '' ()

'7 ''

" =4>

; -33" 33J-33"

, " =4>

3" 3" 3"

;,"=4(> ''

+ , <, ,=4F>

''

, #3•$ •6Y8

•$3•(6(X8)"

; , "

'

< ''

"" , ''

<'' ''

"

< 833"

"" , 833"

<'' 833"

' #8

% %

; ( <" "< < <,7<

< ,E<< ,"

> ?

<" ,7 ,

< <,<6

"<6 <,=>

=<< >

E<6 <,6 EE<"

['<"" ," <" E<" <

" E<"" <, ,<

7

5""

" 5" (5"

" 8;: %%;:

6" 8;:=(6(X8)" >3

() '' ()

'7 ''

" =4>

; -33" 33J-33"

, " =4>

3" 3" 3"

;,"=4(> ''

+ , <, ,=4F>

''

, #3•8 •X8)°'

•$3•(6(X8)"

5 ,

'

< ''

"" , ''

<'' ''

"

< 833"

"" , 833"

<'' 833"

#$ '

% %

&,%( ?< ,"E < 9 , <<6 <,E< 9

<" < ,

<E<""67 " "< , <<6

<,7<<" 7

&,%( %(

&,%( <(

! "

" -;:

'

'7 ''

" =4> 333"

, " =4> 3"

;,"=4(> ''

+ , <, ,=4F> → ''

, •#3•(Y%#" •X#3°'

! "

" -;:

()

'7

" =4> 3"

, " =4> 3"

;,"=4(> ''

+ , <, ,=4F> → ''

, •# •(Y#$" •X#3°'

' #%

% %

-+ "9"769 :" <

,

! " +D

" ''

X)$°'C(-≤)$°'C''

'7 O"

" =4> 3"

, " =4> 3"

;,"=4(>

+ , <, ,=4F> ''

, 8

#) '

% %

4 ( " <7<< 7E "

4 @&$

! "

" ''

''

'7 O"

" =4> 3"

, " =4> 3"

;,"=4(> ''

+ , <, ,=4F> ''

, <

' #*

Special Control SiUS39-501

3.7 Pressure Equalization Prior to StartupBefore activating the compressor, the activation load is lightened by equalization across the compressor. In addition, inverters turn on electricity and capacitors are charged.

Actuator Operation Remarks

Compressor OFF

Outdoor unit fanCooling:OFFHeating:Ta>78.8°F; STEP8, Ta≤78.8°F; OFF

Four way valve Keep former condition.

Main electronic expansion valve (EV1) 0 pls

Subcooling electronic expansion valve (EV2) 0 pls

Hot gas bypass valve (SVP) ON

Receiver gas discharging valve (SVG) OFF

Ending conditions • • 3 min.• • Pc-Pe<29 psi or

40 Function

%

%

<@ %< < ,<"" "< "

< ,<""", <

< ,<"

>% ?

>@ ?

Pc>500 psiEvery 10 sec.

Pc>493 psi

Pc<479 psi

Pc>3.6MPa

Keeping the current step

Every 60 sec. 479 psi≤Pc≤493 psi Every 5 min.

or

&

High pressure not limited

High pressure limited

INV upper limit frequency:1-step up from current compressor frequency



INV upper limit frequency : 1-step down from current compressor frequency

When occurring 3 times within 30 minutes, HPS is activated without high pressure standby, thus outputting the malfunction code "E3".

High pressurestandby

(V3173)

• INV upper limit frequency • Pc ≤ 493 psi

• During oil return operation• After oil return operation• Stopping operation• Heating operation

Pc>479 psi

Pc>522 psi

52Hz

Pc<450 psi

High pressure not limited

High pressure limited

High-pressure drop


When HPS is activated, the malfunction code "E3" is output.

High pressurestandby

(V3174)

' -

%

!, %< 7"" "", <

7"

>% ?

>@ ?

Pe<36 psi

52Hz

Pe>58 psi

Pe<10 psi

Low pressure not limited

Low pressurestandby

Low pressurelimited

Pe: LP pressure sensor detection value

When occurring 3 times within 60 min.,the malfunction code "E4" is output.

(V3175)

Pe<10 psi

Upper limit: 124Hz

Upper limit: 52Hz

Upper limit: 1-step up from current compressor frequency

(V3176)

&• Pe>36 psi• INV upper limit frequency

& More than 124HzPe<23 psi

SVP = OFF SVP = ON

Low pressure not limited

Low pressurestandby

Low pressure limited

Pe>28 psi (every 20 sec.)

Pe>25 psi

Pe<19 psi

Pe<19 psi

Pe<23 psi

Pe<15 psi

Pe>28 psi

When occurring 3 times within 60 min.,the malfunction code "E4" is output.

Pe: LP pressure sensor detection value

- '

%

;@ %< <," "" "<" "

, <," ""

>"5& ?

Discharge pipetemp.control standby

HTdi>275˚FHTdi>239˚F for 10 min. or more.

or

When occurring 3 times within 100 min., the malfunction code "F3" is output.

(V3177)

• HTdi<203˚F

or

• Defrost operation (preparation ~ post operation)• Oil return operation in heating (preparation ~ post operation)• Oil return operation in cooling (without preparation and post operation)

• Tp<212˚F

or

30 sec.

• Not during defrost operation (preparation ~ post operation)• Not during oil return operation in heating (preparation ~ post operation)• Not during oil return operation in cooling (without preparation and post opeation)

• Tp>266˚F• HTdi>221˚F

In discharge pipe protection control

&&

• Tp>266˚F• HTdi>230˚F

or

• HTdi>239˚F for 90sec. or more• Tp>284˚F

• HTdi>266˚For

Cooling: 20 sec.Heating: 60 sec. • Tp<239˚F

• HTdi<212˚F&

Discharge pipe protection control not limited

Keep the current step

INV frequency 1-step down from current compressor frequency(lower limit: 52Hz)


Exclusion of the right conditions

Fix INV frequency 52Hz

HTdi :Value of INV compressor discharge pipetemperature (Tdi) compensated withoutdoor air temperature

Tp : Value of compressor port temperaturecalculated by Tc and Te, and suction superheated degree.

' -#

%

* %" """

"" , E E "

>* * %?

>* & %?

Not limited

Inverter current >23.8A

Inverter current

Inverter current ≥ 24.9A

>23.8A

•Inverter current ≤ 23.8A•INV upper limit frequency

&

•10 sec.•Matching of frequency&

• When occurring 3 times within 60 min.,the malfunction code "L8 " is output.

• When occurring 3 times within 30 min.,the malfunction code "L9" is output

Limited INV upper limit frequency: 1-step down from current

compressor frequency

INV upper limit frequency: 1-step up from current compressor frequency

Inverter current standby

Inverter current ≤ 23.8A continues for 3 min.

Status quo

Without conditions

(V3178)

Not limited

Tfin≥199.4˚F

Tfin≥199.4˚F

Tfin≥210˚F

Fin temp. standby

•Tfin<194˚F•INV upper limit frequency&

• When occurring 3 times within 60 min.,the malfunction code "L4" is output.

Limited INV upper limit frequency: 1-step down from current

compressor frequency

•10 sec.•Macthing of frequency

&

Tfin≤194˚Fcontinues for 3 min.

INV upper limit frequency: 1-step up from current compressor frequency

Status quo

Without conditions

(V3179)

-- '

(@ %

(@ %

;&( <"7" E<" 7 <

,A5 ,BA5 ,B

"< 7 << E ,A 5 ,B

" " 9

>;&?

>;&?

<" <"<"

<( @-

; ," "< )$K'52 "

, "" "7"

5 , !"" $3M

5 ,= ,> !"" %3M

5 ,# !"" )3M

, "" "7"

5 ,= ,> !"" -3M

' -8

(% %) +

4 (% %) +

4 ; & % < "" <''=-=>6=->, < ,

7>

4 @@9%,@8 @%@%8@ &

("#

∗<G " " < ,<

< < <,7<<<, , ,"

4 @@9%,@8 @%@%8@ &

(99#

-$ '

(% %) +

4 @@9%,@8 ; <( #

5 ,< ," E <7 < <8 " E8

"E8 " E" <7 <

4 @@9%,@8 D09E;%@

& %% #

"# <7 < "" E <

A!'B < ""

' -%

(% %) +

4 !* % *%; ?<<7<, 7< <

G "< , ,< <, ,

" ,

<" "

P0

P1

P2

P4P3

P0

P1

P2

P4P3

P0 P0

P1P2

P4 P4P2'

P1'P0'

P4' P4''P3'

P2''P1''

P0''

P3''

Existing position

Draft prevention position Standard Setting position

Ceiling soiling prevention position

(Not for Multi flow type)

Draft prevention position

Standard position

Prohibited

ProhibitedDirt prevention position

P0

P0'

P0''

P1' P2'

P2''P1''

P3'

P3'' P4''

P4'

P1 P2 P3 P4 Same as existing position

Separated into 5 positions (P1 - 4)

Separated into 5 positions (P2 - 4)

Range of direction adjustment

Range of direction adjustment

(VL012)

-) '

(% %) +

4 8@ & & %% " <<< < < =< <7 7<< ,<< AB>

"# ?<!= > < 6 7 < E<" ""E ;<A,<B<E"<=" > E 7 < ,A<B

% < , <""< "E G ,<E ,< <<" <7<< " <""

./#@%

0&@ & @ -*AF9G@& @@ &4 F974F9)0→9+#=< "<< E<4+4 E<"<,7<<< >2< "$-K'%#K'=!→>+< "%#K')K'=→>2< ")K')$K'=→'>

0G&& @@ &74K94 K9)9→0+#2< ")$K'%%K'='→5>+< "%%K'%3K'=5→2>2< "%3K'$-K'=2→!>

' -*

(% %) +

< ?<< ,E<< <"<E , <" ,7

<7<<"?< ,<E<

<<<<7"<<<

""<"<7"<7<<

"@7 ,<, 7< <<

< " < ,<<<""

./#@@

0&@ & @ -*AF9G@

& @@ &4 F97F9)0→;+#

=< "<< E<4+4 E

<"<,7<<< >

2< "$-K'%%K'=!→>

+< "%%K')K'=→5>

0G&& @@ &7F94 F9);→0+#

+< ")K'%#K'=5→2>

2< "%#K'$-K'=2→!>

83 '

(% %) +

4 9 C *

9 C

*-(

%)

+

?<<" 9 " ""< =+><

< <,"7E< :" " 7 <

<7 , E 7 << , 7

,:" C" #3K'-3 E

" #K'3

"" ,:" C" -8K'3

C7<" #K'3

' 8

(% %) +

4 5,( ,9%7 ,"7D7 ,

''"

'.'0 '.;0 '.!0

; ,

;6 ,

7 , , '' & & &

,<7 '' & & &

5 ,7 , , '' & & &

,<7 '' & & &

< 7 , , && & & &

,<7 && & & &

;6<<<<

7 , , && & & &

,<7 && & & &

;7 , , '' & & &

,<7 '' & & &

,

< "6

7 , , &[ 7 , , 7 , , 7 , ,

,<7 &[ " " "

< "6

7 , , ''&

7 , , 7 , , 7 , ,

,<7 " " "

,<

7 , , " 7 , , 7 , , 7 , ,

,<7 " " " "

;7 , , '' & & &

,<7 '' " & &

" = ,< ,>

7 , , & 7 , , 7 , , 7 , ,

,<7 & " " "

[ '.'0E&&&

8 '

Test Operation 53

Part 6Test Operation

" 8- ( 8-

" ?<(7 8%

(2& 8)

# ' , 8*# ' ,+ 8*

# ' , %3

## 5 , %$

8(

8(

(%'7<7 ,"< "

@H H 8 , %(

8 , (

Check on refrigerant piping

Check on amount of refrigerant charge

(V3180)

Check the below items.2Power wiring2Control transmission wiring

between units2Earth wire

¡ Is the power supply single-phase 208-230V / 60Hz?¡ Have you finished a ductwork to drain?¡ Have you detach transport fitting?¡ Is the wiring performed as specified?¡ Are the designated wires used?¡ Is the grounding work completed?

Use a 500V megger tester to measure the insulation.2 Do not use a megger tester for other circuits than 200-230V circuit.

¡ Are the setscrews of wiring not loose?¡ Is the electrical component box covered with an insulation cover

completely?

¡ Is pipe size proper? (The design pressure of this product is 580 psi.)

¡ Are pipe insulation materials installed securely?Liquid and gas pipes need to be insulated. (Otherwise causes water leak.)

¡ Are respective stop valves on liquid and gas line securely open?

¡ Is refrigerant charged up to the specified amount?If insufficient, charge the refrigerant from the service port of stop valve on the liquid side with outdoor unit in stop mode after turning power on.

¡ Has the amount of refrigerant charge been recorded on “Record Chart of Additional Refrigerant Charge Amount”?

Turn outdoor unit power on.

Carry out field setting on outdoor PC board

Turn indoor unit power on.

(V3056)

¡ Be sure to turn the power on 6 hours before starting operation to protect compressors.

¡ Close outside panels of the outdoor unit.

54 Test Operation

8(

@H( [5 ,<D" E" < G, ,

[<D" "

=?<<<D" EP#P7 ">

" " E&5 ( "<7 ,

;#(C"

;(;#(C!" → <D<

"

"C

Check on operation

(V3057)

Press and hold the TEST button (BS4) on outdoor unit PC board for 5 seconds.

¡ The test operation is started automatically.The following judgements are conducted within 15 minutes(about 30 minutes at the maximum).2“Check for wrong wiring” 2“Check stop valve for not open” 2“Pipe length automatic judgement”

The following indications are conducted while in test operation.2LED lamp on outdoor unit PC board H2P flickers (test operation)2Remote controller Indicates “Under Centralized Control” on

upper right.Indicates “Test Operation” on lower left

(For normal completion)(For abnormal completion)

11

H1PH2PH3PH4PH5PH6PH7P18

88

11

11

11

11

, +

#

<< <

"<<<<, 9

< , <, , <9 9 ,<,

<" " ,,<E< , ,<

, E<< ""9

,

-

'#

<< <

"<<<<, 9

<" <

7<,<<D

<" ,

A ,B

< , • <D7<< ,<,< <

• , <9 9 ,

<,<" " ,,<E<<,

""9 ,

'$

< , <, , <9 9 ,<,

<" " ,,<E< , ,<

, E<< ""9

,

# <<D" " (<<D"

- <"7 "" < <"7<

!"""

<D<" <

""E"<7 <""

Test Operation 55

8(

&" &%( • " <<D" <"

=?< " #3K52< ,<E< "7 <

< ,< <>

• << "

=?< 9 " <"<E"

< E<D<<" E<

" , >

• " <D<<" , "

• << <, =7 >

• "< 7<D<

<

'

<< <

"<<<<, 9

<" " ,7 ,<"

<

<<" " ,7 ,<"

<

<" <

7<,<<D

<" ,

A ,B

;< 66 7 ,

< 66 7 ,<''=

5> <(=!(> <

56 Test Operation

8(

( @, 8 ( @8 (, 9 8&

< " <"7

= 6E>

@8 (, @8&-B"<+=28>< (" "

"<<+E< "3

"7

@ ( <:0G

( : <:@2"<<<+8E<

, :< E< " <

= 6E>

";(2 D

,"

"< ," E<A;B D=+7< , ">

";(2 D

,"

"< ," E<" " ,<<""=+7< , ">

";(

,"

"< ," E<A;BA-B D=+7< , ">

Test Operation 57

( : !

( : !

( -

BS1

MODE SET RETURN TEST RESET

BS2 BS3 BS4 BS5

H1P H2P H3P H4P H5P H6P H7P

1 2 3 4 1 2 3 4

A B C F1 F2 F1 F2Switch cool/heat

Indoor −Outdoor

Outdoor −Outdoor

(2) Set mode display (LED)

(3) Mode setting switch

(1) Microcomputer normal monitor

(4) Local setting switch

Connection terminal for transmission use

DS1 DS2

HAP

(V3171)

(1) Microcomputer normal monitor (LED Green)This monitor blinks while in normal operation, and turns on or off when a malfunction occurs.

(2) Set mode display (LED Orange)LEDs display mode according to the setting.

(3) Mode setting switchUsed to change mode.

(4) Local setting switchUsed to make local settings.

58 Test Operation

9%

9%

9% && %% <,<!<

" " ED< , 7 <<

7 , "

?, ,

=?<" < E ,<

9 <,+ <" <D>

& %% I:AJ" < E< ,<

<,+< <"

?< <E"<A B E<

'&55

< 57 <<A B=>

# 5 ,,"E7< ,< =3E#<

>E"<<A B=><5+=<

" 7< ,,">

- (<<A B""=>'+5

8 (<<A B7=><55

$ (<<A B=><" ,

% (<<A B=><+!&5

= ">

,," ,< '&+!!E

;!4/E5A3B'+5A3EB55A3B

TEST

SETTIING

Unit NO.

UNIT NO.

SECONDCODE NO.

MODE NO.

FIELDSETMODE

FIRSTCODE NO.

2P068938

1 76

3 4

5 2

Test Operation 59

9%

%& %% :A7

: 7

:A.77

:A.7

?< <E"<< -E"

<<A B

< AB7 <<

# (< ,< E<

- (< ,< E<

8 (<< <D< ,

$ (<< <

= ">

?< ,< , A' 5 6; ,<B ," ,E<

A3BE ,A3B ," A3B

60 Test Operation

9%

&%& %% :0A

DISPLAY “ ” (CHANGEOVER UNDER CONTROL)

DISPLAY “ ” (VENTILATION/AIR

3P146204

REMOTE CONTROLLER: NAME AND FUNCTION OF EACH SWITCH AND DISPLAY

ON/OFF BUTTON

Press the button and the system will start. Press the button again and the system will stop.

OPERATION LAMP (RED)

The lamp lights up during operation. Blinks in case of stop due to malfunction.

It is impossible to changeover heating/cooling with the remote controller when it shows this display. (As for details, see “SETTING OF MASTER REMOTE CONTROLLER” in the installation manual attached to the indoor unit.)

DISPLAY “ ” (UNDER CENTRALIZED CONTROL)

When this display shows, the system is UNDER CENTRALIZED CONTROL.(This is not a standard specification)

This display shows that the total heat exchanger and the air cleaning unit are in operation. (These are optional accessories).

DISPLAY “ ” (SET TEMPERATURE)

This display shows the set temperature. Only given during a cooling or heating operation.

DISPLAY “ ” “ ” “ ” “ ” “ ”(OPERATION MODE)

This display shows current OPERATION MODE. “ ” is not available with outdoor units specially designed for cooling only. “ ” is reserved only for outdoor units capable of heat recovery.

DISPLAY “ ” (DEFROST / HOT START)

Indicates that defrost or hot start (during which the fan is stopped till the temperature of air supply rises enough at the start of a heating operation) is in progress.

TEMPERATURE SETTING BUTTON

Use this button for SETTING TEMPERATURE of the thermostat. ; Each press raises the set temperature by 1°F. ; Each press lowers the set temperature by 1°F.The variable temperature range is between 60°F and 90°F.

FAN SPEED CONTROL BUTTON

Press this button to select the fan speed, HIGH or LOW, of your choice.

OPERATION MODE SELECTOR BUTTON

Press this button to select OPERATION MODE.

DISPLAY “ ” (MALFUNCTION)

Indicates malfunction and blinks if the unit stops operating due to malfunction.(As for details, see “TROUBLE SHOOTING” in the operation manual attached to the outdoor unit.)

DISPLAY “ ” (FAN SPEED)

This display shows the fan speed: HIGH or LOW.

For the sake of explanation, all indications are shown in the figure above contrary to actual running situations.

63

135

1012

11

98

47

12

F

H L

F

BRC2A71

H L

Test Operation 61

9%

"K559%"

"# , < ,"E<7E <

"<E< ,<,<7

<D " < < "<

< "<7 E

< ,<,<D

# D

- 5D ,<<< < , "

< 9 ""7 <

8 A))B " < ,7< ,<

>

'+5

5 " ,55>#

3 3 3# 3-

3=3>

3

' 6;& ,<= , " >= " <7<< < >

6&,6& "

& ,<

!"" 3E333<

;

!"" 8E333<

H H&,6& "

!"" E833<

!"" E83<

"!"" 33<

!"" 33<

&,6 "= , , >=<, ,7<6,6 >

&,6& '

6&,6& '

H H

< + H H

#5 " ! ' =7< , ">

5 "55 "

H H

=>

3" " = ""7 ,>

<

H" "

"

''" =7<'' >

'''

( 5 "

H

<5 <,=7< >

'.'0K' K' H H

8 (7 =!+> 9 "" 9 "" H H

#=#>

- ' 7" ,5

(

, ,(

H

8' " =" <,"<>

"

!"

!H

62 Test Operation

9%

0%-%9%

,7 <

, ,"= 7>

, 6 "

,"

'.'0 '.0 '.0

3=3>

3 ' ,

, , H H

+<

=>

#

#=#>

3! 7G ,< ,<

H H

! 7 H H

#! 7 G=577" >

H H H

-! 7 G,

H H

8' "

H H H

,7 <

, ,""

?" ' ," ' ,"

'.;0 '.!0 '.&0 '.0

3=3>

3 ' ,

, , H H H H

+<

=>

#

#=#>

3! 7G ,< ,<

H H H

! 7 H H H H

#! 7 G=577" >

H H H H

-! 7 G,

H H H H

8' "

H H H H

Test Operation 63

9%

4 ;%./%$

9%

7 < ,< , E, <7

8&

9@* @8@ &(99

2 ,A'"EB7 <<"<"7<<

< ,< ''

∗ < ,A""7<< ''EB<

D<"

7 ,E<" , < P 7''?<P

.< "7 << "< "

8-%

0 , 9%

'< 7 < ,< = ,>E< 7

<" 7<<"7"" "7

< "7"" , ;7E<

7 << ,E< "7 <

"7"", =<" <

"7 >

'<E7<< , :A! "7

BE<" <<7 ,

' "

,

7 <

,(

& ,< , < ,=<>

, &,&

&,& '

& ,<3=3> 3

3 33< E833< 3E333<

3 33< E83< 8E333<

' ,

=> #3 &&'"

3 '"

8@ % , %

@&, % B%G@ &@-

),@B @ ,@+

64 Test Operation

9%

0 9%,; 0L&

D<7 , 7 , ,<" ""

8-%

' ,

#=#> -

3 "7=5" >

3

3#577= , ,

" >

Test Operation 65

9%

A %C %M "

:8 , : ''

E,"<,"

F" , :

< " "<-7< <E

" <A B

,<"E<A33B

# (<< " "<," "

- ,<", , E<,"<,"=F"

<633E63E68E633-68E< ''<7

"<,,"<7 < ,<>

8 (<< ''<,"

$ (<< " <

[<< < "7" ,EE

<A#3B

66 Test Operation

9%

:A8

: 8

:A.8

F" ,7 :

?< <E"< -E" <

<A B

A33B7 <

# <,"<,"7 < =D7>

- <,""< ,

8 (< <

M "

./&%

?< ,<"7""E< "" 7< P))P

" , 7 " < 9

"< "

Central remote controllerUnified ON/OFF controller

Indoor unit

No remote controllerRemote controller centralized control(automatic address)

1-00 1-01

1-03 1-04

1-02

P1·P2P1·P2P1·P2

Group No. forcentralizedcontrol

1-00 1-01

1-03 1-04

1-02

P1·P2 P1·P2 P1·P2 P1·P2

(V3170)

Test Operation 67

9%

7 ( %$ && %%

)!%+<" " 7 < " ,

< <" '<E" <

'' 7 << =+

<7>

: " = "7< :

>

%$7 , <7 , " 7 <

"" , "

" 3<,<*

'' "

7<7

=>

''"

7<7E

:

7<7E

,

7<7<

" "

7<7 , 7

" 7< ",

68 Test Operation

9%

<,%

( $

?<<" 7 " ,E ,

" ," <" ,

< ,<,<7

5A " " B ,

" " <

∗' ,

ON by remote controller(Unified ON by central remote controller)

OFF by remote controller(Unified OFF by central remote controller)

Temperature control by remote controller

Operation mode setting by remote controller

OFF by remote controller

Control mode is "1."

Example

↓Rejection

↓Rejection

↓Rejection

↓Acceptance

↓Acceptance (VL069)

"

''"

"

,

" E " E"

''E "E "

'' "

+G = ">

+G = ">

+G = ">

+G !" 3

+G 3

!"= ">

!"= ">

= ">

+G

''"

!"

+G !"

+G

!"!" #

+G #

:

!"

+G !" -

+G -

!"!" 8

+G 8

!"

+G !" $

+G $

!"!" %∗+G %

" "

!"=5 , " >

+G =5 , ''" >

+G !" )

+G )

!"!" *

+G *

Test Operation 69

9%

9% &( -,@

<7 , , "7 <(

-@-,@

<7 , ,"<7 <(

=' ,>

5 "7 < , 5 "

,

56 ;

<, ,

<<, ,9 ""7 < ''='>

56J56-

5<,< ,

''='>

56J-

5<,< ,

''='>

;,@ @@&: )0+ :

?<<,< (2=!(>""(2E"<7 ,

,

<""(2 <(2< " 7 ,

?< <,<""(2ED<<, , ,<

7 ,

;,@;%

1 2 3 4 1 2 3 4DS1 DS2

ONOFF

ONOFF

ON

OFF

OFF

ON

RXYMQ36MVJU RXYMQ48MVJU

OFF OFF

OFFOFF

DS No.

DS1-1

Item Contents

Not used Do not change the factory settings.

The following setting is performed according to capability of the outdoor unit.

Cool/Heat change over setting

The Cool/Heat change over setting is carried out by COOL/HEAT changeover remote controller fitted to outdoor unit.

The Cool/Heat change over setting is not carried out by COOL/HEAT changeover remote controller fitted to outdoor unit.

Cooling only

Heat-pumpDS1-2

Cooling only/Heat-pump setting

ON

ON

OFF

OFF

DS1-3DS1-4

DS2-1

HP setting

(Horse power)

DS2-1

DS2-2

DS2-2

DS2-3

DS2-4

DS2-3

DS2-4

;( ;( ;#( ;-( ;8( ;$( ;%(

&5 " 7 7 8 7 7 7 7

70 Test Operation

9%

<<7 ,< ,

&)<+

=7<>C! ,AB

&)<+

<" ,",E

,<

$ &)<-%H+

<D<", ,

$@

$@

BS1

MODE

BS2

SET

BS3

RETURN

BS4

TEST

BS5

RESET

(V2760)

Setting mode 1 Monitor mode

H1P

Push the BS1(MODE button) one time.

Blinking

MODE MODE

Off

H1P

Setting mode 2

MODE

On

H1P

Push and hold the BS1 (MODE button) for 5 seconds.

Push the BS1(MODE button) one time.

(Normal)

(V2761)

Using the MODE button, the modes can be changed as follows.

Check item selection (Set)

Contents display

Monitor mode

Setting mode 1(Initial condition)

Press BS3 (RETURN button).


Setting item selection (Set)

Setting mode 2

(Set): Select mode with BS2 (SET button) in each selection step.

Setting conditionselection (Set)

Setting condition(Contents) display



Press BS3 (RETURN button). Press BS1

(MODE button).

Press BS1(MODE button).

Press BS1(MODE button).Press BS1 (MODE button) for more than 5 sec.

(V2762)

Test Operation 71

9%

;% &%' '

8C7C''9C2 D

,= " ,> &5 " "

;( ;( ;#( ;-( ;8( ;$( ;%(

7 7 8 7 7 7 7

7 8 8 7 7 7 7

(" ,6 7 9 8 7 7 7 7

a. “Setting mode 1”

“Normally, “Setting mode 1” is set. In case of other status, push MODE button (BS1) one time and set to “Setting mode 1”.

∗ The current state is displayed.

72 Test Operation

9%

, 5 "

8 ;

!7" 7< ""=;">

$ "

!7"

) , ," " ,

* , , "< ,

35<, ,

<,<" 9 D7

+ , , ,

, ,

,<6 7 ,

,< 7 " "7<" , A ,BA ,B

$ ,<6 7 " ,

, ,< 7 " = ,<6 7 , 9 >

% ,<6 7 " ,

, ,< 7 " = ,<6 7 , 9 >

*" " ,

<" 9 E<7 < , , ,7 " ,< 7 "

#3 5 ,<,,"7" 7< "

# ,

7 < "= ""< D" <7,

b. “Setting mode 2”

<Selection of setting items>

<Selection of setting conditions>

Push and hold the MODE button (BS1) for 5 seconds and set to “Setting mode 2”.

Push the SET button (BS2) and set the LED display to a setting item shown in the table on the right. ↓Push the RETURN button (BS3) and decide the item. (The present setting condition is blinked.)

Push the SET button (BS2) and set to the setting condition you want. ↓Push the RETURN button (BS3) and decide the condition.

Push the RETURN button (BS3) and set to the initial status of “Setting mode 2”.

∗ If you become unsure of how to proceed, push the MODE button (BS1) and return to setting mode 1.

(V2764)

Test Operation 73

9%

8C7C''9C2 D

, "

, " ,

5;(

;(

; &7 ;$(

5;%(5

;#(;-(

;8( ∗ '

8 ; 8 7 7 7 8 7 8" 8777778 ∗; 8777787

$" 8 7 7 7 8 8 7

" 8777778 ∗" 8777787

) , 8 7 7 8 7 7 7

; ,< 8777877 8777787 ∗&7 8777778

* , 8 7 7 8 7 7 8

; ,< 8777877 8777787 ∗&7 8777778

35<, , 8 7 7 8 7 8 7

0 D 8777877 8777787 ∗7 8777778

+ , , ,

8 7 8 7 8 7 8+ ,C'' 8777778 ∗+ ,C 8777787

,<6 7 , 8 7 8 7 8 8 7

'' 8777777 ∗& 8777778& 8777787&# 8777788

$ ,<6 7 " ,

8 7 8 8 7 8 7

!3C33 8777778!C33 8777787 ∗!-C33 8777877

% ,<6 7 " ,

8 7 8 8 7 8 8

!$C33 8777778!%C33 8777787!)C33 8777877 ∗

*" " , 8 7 8 8 8 7 8

'' 8777778 ∗ 8777787

#3 5 , 8 7 8 8 8 8 7

$3M 8777778%3M 8777787 ∗)3M 8777877

# , 8 8 7 7 7 7 7

'' 8777778 ∗ 8777787

74 Test Operation

9%

8C7C''9C2 D

&;%D5 E

, &5 "

5 ";( ;( ;#( ;-( ;8( ;$( ;%(

3 4 , 9 7 7 7 7 7 7 7

8 9 7 7 7 8 7 8 &7$ ,

- =<>

9 7 7 8 8 8 7

8 => 8 7 7 8 8 8 8

$ => 8 7 8 7 7 7 7

3 =<> 8 7 8 7 8 7 7

=> 8 7 8 7 8 7 8

=> 8 7 8 7 8 8 7

5 , < 9 7 7 7 8 7 7

9 7 7 7 9 7 7

&, 9 7 7 7 7 7 7

, ; 9 7 7 7 7 8 7

9 7 7 7 7 9 7

& 9 7 7 7 7 7 7

, ; 9 7 7 7 7 7 8

9 7 7 7 7 7 9

& 9 7 7 7 7 7 7

c. Monitor mode

<Selection of setting item>

<Confirmation on setting contents>

To enter the monitor mode, push the MODE button (BS1) when in “Setting mode 1”.

Push the SET button (BS2) and set the LED display to a setting item.

Push the RETURN button (BS3) to display different data of set items.

Push the RETURN button (BS3) and switches to the initial status of “Monitor mode”.

∗ Push the MODE button (BS1) and returns to “Setting mode 1”.

(V2765)

(<<<7 <<&568E"<<++E

<< ,

5< " \<7

7 " ,7C

<8< "

,<7$ , =36$#>

< 3333= >E7< <

-RW$=3><7E< $

9 797997 16 4 132 8 2

Test Operation 75

9%

;%$ %'<$,@

<<7 ,<7 < ,

<"<

<"< <7 < ,

%'< % .@( &- & %%

7<<< 6 7 ,

(56A B=>

<7 < ,A BA ,B=>

76 Test Operation

9%

%'< % .@( &-%'<,@& %%

7<<< 6 7 ,

(56AB=>

<7 < ,A BA ,B=>

Test Operation 77

9%

!,"( ;&(

!,"(

2 ,< "<7 "<

"=" >E7" , 6#2

0 @@%, -/ % ),@@

@/ % % +

A 7 5/ ,BA 7 5/B

= ,>

A 7 ,B< (2E<

=&7 " AB<ABEA#B

<AB>

# A" " ,B< (2E<

=ABE7< ,,< ,<E<7

,7 <" >= ,>

: @@%, &%%@)8@/ %

% B +

A ,<6 7 ,B< (2= ,>

=&7 " AB<ABEA#B

<AB>

A ,<6 7 ,B< (2E< =

,>

= < " 7 <<"E< ,

,>

# A ,<6 7 ,B< (2E<

= ,>

= < " 7 <<"E< ,

,>

- A" " ,B< (2E<

= ,>

=ABE7< ,,< ,<E< 7 <

" ,<>

78 Test Operation

9%

& @0

& @:

& @0:

Test Operation 79

9%

;&(

2 ,< "< "<

"=" >E<"7" " "" ,<

"" ,

>;&?

>;&?

<" <"<"

0 @@& -/ % ),@@@

/ % % +

<P 7 5/ ,P7 << (2<

P 7 5/P

= ,>

<P5 ,P< (2E<

=5 ,< E<"7" )3ME%3M

$3M<" >

: @@& )@/ % %

B +

<P ,P< (2

<P ,P <P ,PE<

P5 ,P< (2E<

=5 ,< " E<"7"

)3ME%3M$3M<" >

, "" "7"

5 , !"" $3M

5 ,= ,> !"" %3M

5 ,# !"" )3M

, "" "7"

5 ,= ,> !"" -3M

80 Test Operation

9%

& @0

& @:

& @0:

(V3081)

Power consumption

Rated power consumption

80 % of rated power consumption70 % of rated power consumption60 % of rated power consumption

40 % of rated power consumption

Forced thermostat OFF(Fan operation)

Demand level 1 instructing

Power consumption set by "Demand 1 level setting".

Demand level 2 instructing Demand level 3 instructing

The power consumption during the demand level 1 instructing can be set with the "Demand 1 level setting".("70 % of rated power consumption" has been set at factory.)

(V3082)

The power consumption set with "Demand 1 level setting".

When the "Continuous demand setting" is set to ON ("OFF" has been set at factory.) , the power consumption can be set with the "Demand 1 level setting". ("70 % of rated power consumption" has been set at factory.)

Power consumption


80 % of rated power consumption70 % of rated power consumption60 % of rated power consumption40 % of rated power consumption


(V3083)

The power consumption set with "Demand 1 level setting".HDemand level 2 instructing HDemand level 3 instructing

The power consumption can be set with the "Demand 1 level setting". ("70 % of rated power consumption" has been set at factory.)

HDuring continuous demand operation, when the external demand instruction is received repeatedly, the instruction with higher demand level has the precedence.

Power consumption


80 % of rated power consumption70 % of rated power consumption60 % of rated power consumption

40 % of rated power consumption


Test Operation 81

9%

;% !,"( ;& %

&)<+

,E"<<2=5> → ,

;( ,<

5 ,< , "EA7 " BAB

"

&)<+

,E"<<<2=5><8→ ,

;( ,<

(<<2=> <<&5 "7 << ,

7

(<<2#=++> E<" , "

→(<<2=> <<&5 "7 << ,

=<77>7

(<<2#=++>7 →+

(<<2=5> →+< ,;(

82 Test Operation

9%

C C''9C2 D

,

,

, , ,

, = ,>

;( ;( ;#( ;-( ;8( ;$( ;%( ;( ;( ;#( ;-( ;8( ;$( ;%( ;( ;( ;#( ;-( ;8( ;$( ;%(

7 5 ,

='>

9

/ 9

,<6 7 ,

''=' ,>

9

9

# 9 9

8 7 ,

9

=' ,>

9

# 9

$ ,<6 7 ,

()C33 9

(3C33=' ,>

9

(3C33 9

% ,<6 7 ,

!$C33 9

!%C33 9

!)C33=' ,>

9

* " " ,

&7 "=' ,>

9

" "

9

#3 5 ,

$3M"7"

9

%3M"7" =' ,>

9

)3M"7"

9

# ,

''=' ,>

9

9

, ,

Test Operation 83

9%

* $?< ,< , E"<" "

2<< < "

>( ?

&7 < "EA+ ,+4 ,B

<" " "=;(

"A(+!B= D>EA(+!BA5++!&]5

+&B "<E<" "<

< , , , =< <<

, >

(A2BA ,B

5&$" ," E"< "

2<< < "

>( ?

? <$7< < "EA+ ,4 ,B

< " "

"

=;( D <" E< "A

(+!BA5++!&]5+&BE<"< ," >

! ,EA ,B " 4 ,"

<""" ,"

(A2BA ,B

84 Test Operation

9%

@H( " <" E< " 7 <

" ,<D 7 ,E" EG,

" " ,,<

Unit stopping

Press the TEST button for 5 seconds.

10 sec to 10 minutes

LED display (H1P~H7P) (8:ON 9:BLINK 3:OFF)3383333

3933338Pressure equalizingStep 1

20 sec to 2 minutes

10 minutes

To 30 seconds

3933383Cooling start controlStep 2

3933388

3933888

3938333

3983333

Stability waiting operationStep 3

Pump down residual operationStep 7

5 minutes

Standby for restarting

Completion

Step 8

• Stop valve close check • Wrong wiring check• Piping length check3 minutes

3933833

3933838

3933883

Judgement functionStep4~6

CHECK OPERATION FUNCTION

(V3165)

Test Operation 85

9%

86 Test Operation

Part 7Part 7Part 7Part 7TroubleshootingTroubleshootingTroubleshootingTroubleshooting

< ,+ *3 <(2 *3

65 , ? + *

# 65 , ? + *

- " <+@"

" 2 *-

8 + *8

& *%

# (2 33

- < , <+ 3- AA0B C ( 5 3

- AA1B C(25 3#-# AA3B C 5 &=&>3-

-- AA6B C'='>&DE 3$

-8 AA7B C 7 ,'"=!> 3%

-$ AA9B C ,(

" 4=3> 3*

-% AAFB C5 &&

-) AAJB C " 5 5

-* AC4B C < =+>

; <, #

-3 AC5B C < =+#>F( " -

- AC9B C < =+> ! 8

- ACAB C < 5 <,! $

-# ACJB C <

+ %

-- AE1B C(25 )

-8 AE3B C! ; ,<(7 <*

-$ AE4B C! &7(7 < 3

-% AE5B C"&D

-) AE7B C ' #

-* AE9B C ,(

" 4 8

-3 AF3B C!5 <,( "" %

- AH9B C < =+>! )

- AJ3B C 5 <,( "< =+#>*

-# AJ5B C < =+> ( " #3

-- AJ6B C < =+->

; <, #

-8 AJ9B C ,; <,

F( "< =+8>#

-$ AJAB C ; ,<( ##

Troubleshooting 87

-% AJCB C &7( #8

-) AL4B C + ,'

"+ #$

-* AL5B C"! #%

-#3 AL8B C!#)

-# AL9B C" -3

-# ALCB C 7

(2-

-## AP4B C + ,'

"+ -#

-#- APJB C' '5 --

-#8 AUOB C&7(5"5+ ,

<, " 4' -8

-#$ AU2B C(7""

' -$

-#% AU3B C<D" -)

-#) AU4B 7

-*

-#* AU5B C 7+

8

--3 AU8B C 7

+8

-- AU9B C 7

< 8#

-- AUAB"" E

+ 88

--# AUCB!5" +8$

--- AUEB 7+

8%

--8 AUFB 8*

--$ AUHB E+ ,!

$3

8 < , <+ $8 AUEB 7+

$

8 AM1B(25 $#8# AM8B 7"

: $-

8- AMAB"" "

: $8

88 AMCB!5" E"" ,$%

$ < , < ''$)$ " &"2 D$)

$ 5 "A :B2 D=+" ,2 D> %3

$# 5 "A :B2 D=+"52 D>%#

% < ,=(C< > %-% AUEB 7+

%-

% AM1B(25 %$

88 Troubleshooting

%# AM8B 7"

: %%

%- AMAB"" "

: %)

%8 AMCB!5" E"" ,)3

) <D)

Troubleshooting 89

8 -%@-& %%

8 -%@-& %%

8@".8("'8.8:<7 , ,< <

Normalmode

Inspectionmode

Testoperation

mode

Localsettingmode

Servicemode

Depress button for more than 4 seconds.


Press button once.

Press button once. Or after 30 minutes

After 10 seconds

Press button once.

Press button once.

Indoor unit settings can be made• Filter sign time• Air flow direction• Others

You can confirm following three codes with respect to each pushof the button.• Malfunction codes• Indoor model code• Outdoor model code

Service data can be obtained.• Malfunciton code history• Temperature data of various sectionsService settings can be made.• Forced fan ON• Air flow direction/volume setting

(V0815)

The thermostat is turned on by force when the "trial-operation mode" is started (the remote controller displays "trial-operation").

Normalmode

Inspectionmode

Testoperation

mode

Localsettingmode

Servicemode



Press button once.

Press button once. Or after 30 minutes

After 10 seconds

Press button once.

Press button once.

Indoor unit settings can be made• Filter sign time• Air flow direction• Others

You can confirm following three codes with respect to each pushof the button.• Malfunction codes• Indoor model code• Outdoor model code

Service data can be obtained.• Malfunciton code history• Temperature data of various sectionsService settings can be made.• Forced fan ON• Air flow direction/volume setting

(V0815)

The thermostat is turned on by force when the "trial-operation mode" is started (the remote controller displays "trial-operation").

90 Troubleshooting

8 -%@-& %%

%;- & %%

./% " " E<@" &5 DE

"= "" E

"7<< " >< 7<

D " "

Troubleshooting 91

8 -%@-& %%

%;- %& %%

@

:A8

: 8

:A.8

/ <7 ,

9 "" E<" ,&5< ,<"

<

< 7 ,<" 7=<

"7<" < E<

<" ">

(<(A" B

<9 "< " <A B ,<<

"<7< ,A3B

<

(<(5?<,< " <::=[>

,<

["

3 short beeps :<7 ," 1 short beep :"#- <" "- :: < ::

<<

Continuous beep :

# (<5

<A3B="" , > < <

- "" , ,

(<(5?<,< "" , <

< ,::=[> ,

<"" , <<,<777<<(5?

"

["

Continuous beep :2<""7 , <= >

2 short beeps :"" , <

1 short beep :&7 , <

8 (<5

< ,<A3B=7 , > < <

$ 7 , ,

(<(5?<,< 7 , <

< ,::=[> ,

92 Troubleshooting

8 -%@-& %%

<7 , <<,<777<<(5?

"

Troubleshooting 93

8 -%@-& %%

( @& %% N'8

( :

Inspection/test operation

Example model

FXFQ24

Example of capacity code display

Display

071

Product classification

VRV system

Display

F

Indoor unit system code

System classification

Standard indoor

Type

Wall mounted

Multi flow

Ceiling suspended

Built-in

Floor standing

Concealed ceiling duct

Concealed floor standing type

Display

A

F

H

J

L

P

L

Indoor unit type code

Model

FXAQ

FXFQ

FXHQ

FXSQ

FXLQ

FXMQ

FXNQ

Type

VRV

Display

A 8 A

Outdoor model code

Model

RXYMQ-M

UnitMalfunction codeInspection

Normal display (No display)

0L 0

Malfunction code blinks when a malfunction occurs.

UnitMalfunction codeInspection

Inspection mode

Push the button.


Push the button.


Push the button.


Push the button.


Push the button.

0L 0

Indoor unit model code display

0 7 1F F M

Outdoor unit model code display

– – – A 8 A

Test operation

Test operation mode

Capacity codeIndoor unit system codeIndoor unit type codeProgression code

0 7 1...F...F...M...

(V3181)

94 Troubleshooting

8 -%@-& %%

& %% *$/DA BDA ,B < E7 <" ,<

<

<,. @

*$

*$

(

$@

%@&"

< 7 <<

='7 E-#>

%@")9 %%+

< 7 << ='7 E

>

$H@ B @&

--E-8E"< <, , ,7D

=&5AB D>

' E< ",

;@)$ G +

5 "< ,<

! ,E&5AB<, D ,

@ &% &

(<<

Troubleshooting 95

8 -%@-& %%

' " < + " "

40 < "

5 " <

<< <,7 <<

41 5 "

5 " "

< "7 <<

3C< C C& 9 " "#CF" "

!-C 8C $C2 %C])C<,"*C57

43 ' << =?<7<< >

2 ,< 7 << E

<<

=>

44 , <" 7 <

< 7 <<

<"7 <<

< 7 7 <<

45

< 7 <<

< 7 <<

Hystory No: 1 - 91: Latest

Unit 1Malfunction code 2-U4

Malfunction code

40

(VE007)

Temperature ºC

41

Sensor data display

Unit No. Sensor type

1 1

2 7

Address

41

Address display

Unit No. Address type

1 8

1

(VE008)

Unit 1

43

(VE009)

Unit 1 Code

44

Air flow direction P0 - P4

Fan speed 1: Low3: High

1 3

(VE010)

Unit 1 Code

45

Present unit No.

Unit No. after transfer

0 2

(VE011)

96 Troubleshooting

!$%

!$%8C7C''9C2 D

" "

" "

(,

!3 9 9 9 " 3

! 9 9 9 (E(+ 3#

!# 9 9 9 =&> 3-

!$ 9 9 9 '='>DE 3$

!% 8 7 9 7 ,"=!> 3%

!* 9 9 9 ," " =3>

3*

!' 8 7 9 5

!I 9 9 9 " ,

- 9 9 9 < =+>< <,= E E< E >

#

8 9 9 9 < =+#>," "= E E< E >

-

* 9 9 9 < =+> = E E< E >

8

! 9 9 9 < = E E< E >

$

I 8 8 8 < %

<" D9E<7E<D"

Troubleshooting 97

!$%

8C7C''9C2 D

" "

" "

(,

9 9 9 (E(+ )

# 9 9 9 ! < ,<"7 < *

- 9 9 9 ! 7"7 < 3

8 9 9 9 "D

$ 9 9 9 "D H

% 9 9 9 #

* 9 9 9 ," " =/J#>

8

'# 9 9 9 ! <," "" %

'$ 9 9 9 + ,<, H

;# 8 7 9 ; ,<"7 < H

;- 9 9 9 ! &7"7 < H

;% 9 9 9 ! , H

;* 9 9 9 < =+> = E E< E >

)

I 9 9 9 H

I# 9 9 9 <," "< =+#>= E E< E >

*

I8 9 9 9 < =+> " "= E E< E >

#3

I$ 9 9 9 < =+->< <,= E E< E >

#

I* 9 9 9 ,< <,," "< =+8>

#

I! 9 9 9 < ,<" ##

I 9 9 9 7" #8

&3 9 9 9 H

&- 9 9 9 , " #$

&8 9 9 9 " #%

&$ 9 9 9 " , ,< H

&) 9 9 9 #)

&* 9 9 9 " -3

&! 9 9 9 "7 H

& 9 9 9 7 (

-

( 9 9 9 6 """ H

(- 9 9 9 , "

-#

(I 9 9 9 ' --

<" D9E<7E<D"

98 Troubleshooting

!$%

8C7C''9C2 D

" "

" "

(,

3 8 7 9 &7"" ,<, "

-8

9 9 9 +"<""< H

9 9 9 (7"" -$

# 9 9 9 <D" -)

- 9 9 9 7

-*

8 9 9 9 7

8

8 7 8 7 ' ( , ,

H

% 9 9 9 7 H

) 9 9 7 7 = >

8

* 9 9 9 7 <

8#

! 9 9 9 "" E

88

8 8 8 !" 8$

9 9 9 7

8%

' 9 9 9 + ,E " 7 ," " ,

8*

; 9 9 9 E ,

$3

9 9 9 7

$

87 9 9 ( $#

) 87 9 9 7" :

$-

! 87 9 9 "" " :

$8

87 9 9 !" E "" , $%

<" D9E<7E<D"

Troubleshooting 99

$%-( :

$%-( :

<Selection of setting item>

<Monitor mode>

<Confirmation of malfunction 1>

To enter the monitor mode, push the MODE button (BS1) when in “Setting mode 1”.

Push the SET button (BS2) and set the LED display to a setting item.

Push the RETURN button (BS3) once to display "First digit" of malfunction code.


Push the SET button (BS2) once to display "Second digit" of malfunction code.

Push the RETURN button (BS3) and switches to the initial status of “Monitor mode”.

∗ Push the MODE button (BS1) and returns to “Setting mode 1”.

Contents of malfunction Malfunction

code


Push the SET button (BS2) once to display "master or slave1 or slave2" and "malfunction location".

Detail description on the right.

(V3167)

HPS activated

Abnormal Pe

Detection of INV compressor lock

Instantaneous over current of DC fan motor

Detection of DC fan motor lock

EV1

EV2

Faulty Ta sensor

Abnormal Td

Faulty Tdi sensor

Faulty Ts sensor

Faulty Tb sensor

Faulty Tsh sensor

Faulty Pc sensor

Faulty Pe sensor

Inverter instantaneous over current

Electronic thermal switch 1

Electronic thermal switch 2

Out-of-step

Speed down after startup

Lightening detection

Stall prevention (Current increasing)

Stall prevention (Faulty startup)

Abnormal wave form in startup

Out-of-step

Inverter transmission error

Imbalance of inverter power supply voltage

Faulty thermistor of inverter box

Faulty thermistor of inverter fin

Incorrect combination of inverter and fan driver

Gas shortage alarm

Insufficient inverter voltage

Inverter open phase (phase T)

Charging error of capacitor in inverter main circuit

Over voltage

Over current/Over voltage (Hard detection)

I/O transmission error

Indoor unit system malfunction in other system or

other unit of own system

Abnormal connection with excessive number of indoor units

Conflict of refrigerant type in indoor units

Incorrect wiring (Auto address error)

Malfunction of multi level converter, abnormality in

conflict check

Abnormal discharge pressure

Abnormal suction pressure

Compressor lock

Over load, over current,

abnormal lock of outdoor unit fan motor

Malfunction of electronic expansion valve

Faulty sensor of outdoor air temperature

Abnormal discharge pipe temperature

Faulty sensor of discharge pipe temperature

Faulty sensor of suction pipe temperature

Faulty sensor of heat exchanger temperature

Faulty sensor of subcool heat exchanger temperature

Faulty sensor of discharge pressure

Faulty sensor of suction pressure

DC output over current

Electronic thermal switch

Stall prevention (Limit time)

Transmission error between inverter and outdoor unit

Open phase / Power supply imbalance

Faulty temperature sensor inside swicth box

Faulty temperature sensor of inverter radiation fin

Incorrect combination of inverter and fan driver

Gas shortage

Abnormal power supply voltage

Abnormal SP-PAM

Abnormal latch circuitry

No implementation of test-run

Transmission error between indoor and outdoor unit

Transmission error of other system

Erroneous on-site setting

Faulty system function

Transmission error in accessory devices, conflict

in wiring and piping, no setting for system

E3

E4

E5

E7

E9

H9

F3

J3

J5

J6

J9

JA

JC

L5

L8

L9

LC

P1

P3

P4

PJ

U0

U2

U3

U4

U9

UA

UH

UF

100 Troubleshooting

$%-( :

8C7C''9C2 D

H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P

Malfunction code 2nd digit display section

Malfunctionlocation

7 77 9

9 7

Master

Slave 1

Slave 2

Malfunction

code

Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3

H1P H2P H3P H4P H5P H6P H7P

Malfunction code 1stdigit display section

(V3168)

9999

9

9999999999

9

9999999

999

9

99

999999

9999999999

9

9999999

999

9

99

7777

77

7777777777

7

7

77

777

7

77

7777

77

7777777777

7

7

77

777

7

77

7777

9

9777799979

9

9777977

779

9

99

7999

7

7779977997

7

9779977

797

7

79

9779

7

7997979777

7

7797779

977

9

99

9799

9

9999797797

9

7997977

97977

99

7777

9797777777777

7

7777777

777

7

77

77797

977797777777

7

7777777

777

7

77

E3

E4

E5

E7

E9

H9

F3

J3

J5

J6

J9

JA

JC

L5

L8

L9

LC

P1

P3

P4

PJ

U0

U2

U3

U4

U9

UA

UH

UF

9

999

9

9

9

7

777

7

9

9

7

999

9

7

7

9

779

9

7

7

9

797

9

7

9

Troubleshooting 101

8 -%@-@& %%

8 -%@-@&

%%

“A0” #. ./ % ;*&

%%

;%

A0

0%-%

$%

!

$@

$%

;

5"< 7 "

$%

;

?<" 7 " 7 <<

P '' P

! "

""

5 (

8 -%@

(V2776)

CautionBe sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.

Indoor unit PC board replacement.

Actuation of external protection device.

Change the second code No. to "01" or "02" .

Externalprotection device is

connected to terminals T1and T2 of the indoor

unit terminalblock.

ON/OFFinput from

outside (mode No. 12,first code No. 1) has beenset to external protection

device input (secondcode No. 03)

by remotecontroller.

YES

NO

NO

YES

102 Troubleshooting

8 -%@-@& %%

“A1” #: ;&

%%

;%

A1

0%-%

$%

!

$@

$%

;

<DN(+

$%

;

?< <N(+

N(+C" 7<<"7

""

5 (

8 -%@

Turn power supply OFF, then power ON again.

Doesthe system return

to normal?

YES


External factor other than malfunction (for example, noise etc.).

Replace the indoor unit PC board. (V2777)

NO

Troubleshooting 103

8 -%@-@& %%

“A3” #$%; !*% %&)!+

&

%%

;%

A3

0%-%

$%

'.'0E'.0E'.0E'.;0=" >E'.!0=" >

$@

$%

;

27 <''

$%

;

?< 7 <7 <,''

3)J#34"7"" "

57 <<

5 ""

5 ,, ,E"7"E

5 (

&

104 Troubleshooting

8 -%@-@& %%

8 -%@

(V2778)


Replace float switch.

Modify the float switch's connection and turn on again.

Connect the drain pump and turn on again.

Check the drain piping for clogging or upward slope, etc.

Replace indoor unit PC board.

Replace the drain pump or check for dirt, etc.

Connect either a short circuit connector or float switch and turn on again.

YES

YES YES

YES

YES

Defect of indoor unit PC board.

Loose connection of connector.

NO NO

NO

YES

YES

NO

NO

YES

NO

YES

NO

NO

The floatswitch is connected toX8A of the indoor unit

PC board.

NO

The drainpump works when

the power supply is resetfor the indoor

unit.

The drainpump is connected

to X25A or terminals Y1and Y2 of theindoor unit PC

board.

The voltageof terminals Y1

and Y2 or X25A is208~230 V (within

5minutes of resettingthe power supply).

Water builds up in the drain pan.

The floatswitch contact is

forming a short circuit(continuity check

with X8A disconnected)

A shortcircuit connector is

connected toX8A.

Provide 208~230V power supply.

YES

NOIs power supply208~230V provided?

Becomesnormal when X8A of

the indoor unit PC boardis short circuited

The float switchfunctions normally.

Troubleshooting 105

8 -%@-@& %%

“A6” #9$ )$9+!HG(* %&

%%

;%

A6

0%-%

$%

!

$@

$%

;

5 , ,<

$%

;

?<@7<",<

'D

5 7 ,7(

8 -%@


Connect the wiring and turn on again.

Fix the wiring and turn on again.

YES

NO

NO

NO

YES

YESReplace the indoor unit PC board.

Replace the fan motor.

Is thewiring from the fan

motor securely connectedto connectors on the

indoor unit PCboard?

Wiringbetween the

indoor unit PC board andfan motor is

disconnected.

Does the fan motor run?

(V2779)

106 Troubleshooting

8 -%@-@& %%

“A7” #$%,9%$ )$0+&

%%

;%

A7

0%-%

$%

'.;0

$@

$%

;

:''< 7 <7<<

$%

;

?<''< 7 <" ,<,<<7 ,"

, :" =#3>

57 ,

5 ="7"" 7 <>

5 7 G ,"6

5 (

Troubleshooting 107

8 -%@-@& %%

8 -%@


Provide 208~230V power supply.

YES

NOIs power supply208~230V provided?

Replace the limit switch connecting cable.


Replace the power supply connecting cable.

Replace swing motor.

Take the cam mechanism apart, reassemble and turn on again.

YES

NO

YES

YES

NO

YES

NO

Connect the connector to X9A and turn on again.

Replace indoor unit PC board.NO

NO

YES NO

YES

NO

YES

YES

NO

Indoor unitis a model equipped

with a swing flapfunction

The swingmotor works when

the power supply is turnedoff and then back

on.

Whenthe air flow

direction flap's cammechanism is disconnected

from the swing motor,operation is normal

when turnedon again.

The connecting cablehas no continuity.

Afterturning

the swing-flapON and then

stopping with the remote controller, the

voltage of X6A of the indoor unit PC board is 208 ~ 230 VAC

(60 Hz) when turned onagain (within 30

seconds ofturning on

again).

The connectoris connected to X9A of

the indoor unit PCboard.

The limit switchfunctions normally.

The connectingcable is short-circuited

or disconnected.

Replace swing motor.

(V2780)

108 Troubleshooting

8 -%@-@& %%

4 “A9” #$%$* .% ./5%*).+

&

%%

;%

A9

0%-%

$%

!

$@

$%

;

"<D< "

$%

;

?<<" "< " 7< < :

< "

," "

5 (

5 ,

8 -%@

(V2781)


After connecting, turn the power supply off and then back on.

Replace the moving part of the electronic expansion valve.

YES

YES

NO

NO

Replace the connecting cable.

If you turn the power supply off and turn on again, and it still does not help, replace the indoor unit PC board.

NO

YES

Theelectronic

expansion valve isconnected to X7A of the

indoor unit PCboard.

Normalwhen coil check

(∗1) of the moving part ofthe electronic expansion

valve ischecked.

The connectingcable is short-circuited or

disconnected.

Troubleshooting 109

8 -%@-@& %%

∗C <D<< ,"< "

5 < " <(<D< 7

<"

=>

C !"" #33ΩC !"" 83Ω

L C

( ?< /7 #, -2 8+ $27

?< L!"" #33Ω

L!"" 83Ω

L

/7 L!"" #33Ω

L!"" 83Ω

#, L!"" 83Ω

L

-2 L!"" 83Ω

8+ L

$27

110 Troubleshooting

8 -%@-@& %%

A “AF” #; !*%-*!&

&

%%

;%

AF

0%-%

$%

'.'0E'.0E'.0

$@

$%

;

?D, 7 <''" 7< <"

6"

$%

;

?<<7 <<,''7< <" 6"

; =" >D ,

5 " "="7"E>

5 (

8 -%@


Defect of indoor unit PC board.

Modify the drain piping.YES

NO

NO

Field drainpiping has a defect such as

upward sloping.

Check if the humidifier unit isleaking.

YESA humidifier

unit (optional accessory)is installed on the

indoor unit.

(V2782)

Troubleshooting 111

8 -%@-@& %%

7 “AJ” #$%; &

;*

&

%% %

AJ

0%-%

$%

!

$@

$%

;

" , <" ,"<

<< (E7<<<

$%

;

" C

?<<" <(@E<" ,

"

?<" <@ <

/<, <" ,"

5 (

8 -%@

(V2783)


Install a capacity setting adaptor.

Replace the indoor unit PC board.NO

NO

YES

YES

Replace the indoor unit PC board.

The indoorunit PC board was replaced

with a replacementPC board.

The indoorunit is a model that

requires installation of acapacity setting adaptor

when replacing thePC board.

112 Troubleshooting

8 -%@-@& %%

“C4” #$%8@ & )8+ <

./@

&

%%

;%

C4

0%-%

$%

!

$@

$%

;

"< <,<

$%

;

?<<< <,< <7< < ,

5< =+> 9 " "

5 (

8 -%@

∗+A< + "< B(*3

(V2784)



Connect the thermistor and turn on again.

NO

NO

Replace the thermistor (R2T).

YES

YES

Connectoris connected to X12Aof the indoor unit PC

board.

Resistanceis normal whenmeasured after

disconnecting the thermistor(R2T) from the indoor

unit PC board (3.5kΩ~360kΩ)

Troubleshooting 113

8 -%@-@& %%

“C5” #$%8@ & )8+ M

&

%%

;%

C5

0%-%

$%

!

$@

$%

;

"," "<

$%

;

?<<," "< <7< < ,

5 < =+#>," "

5 (

8 -%@

∗+A< + "< B(*3

(V2785)




NO

NO


YES

YES

Connector isconnected to X11A of

the indoor unit PCboard.


disconnecting the thermistor (R3T) from the indoor

unit PC board.(0.6kΩ~360kΩ)

114 Troubleshooting

8 -%@-@& %%

“C9” #$%8@ & )8+

0

&

%%

;%

C9

0%-%

$%

!

$@

$%

;

" "

<

$%

;

?<< "< <7< <

,

5 < =+>

5 (

8 -%@

∗+A< + "< B(*3




NO

NO


YES

YES

Connectoris connected to X13A

of the indoor unitPC board.


disconnecting the thermistor(R1T) from the indoor

unit PC board. (7.2kΩ~112kΩ)

(V2786)

Troubleshooting 115

8 -%@-@& %%

“CA” #$%8@ & ;@

0

&

%%

;%

CA

0%-%

$%

!

$@

$%

;

" <, "

<

$%

;

?<< <, "< <7< <

,

5 <

5 (

8 -%@

∗+A< + "< B(*3




NO

NO

Replace the thermistor.

YES

YES

Connectoris connected to the indoor

unit PC board.


disconnecting the thermistorfrom the indoor unit

PC board. (7.2kΩ~112kΩ)

(V2786)

116 Troubleshooting

8 -%@-@& %%

“CJ” #$%8@ &

& %%

&

%%

;%

CJ

0%-%

$%

!

$@

$%

;

"

"< =C>

$%

;

?<< "< <7<

< ,

5<

5(

8 -%@

"# < E " <

∗+A< + "< B(*3

Turn power supply OFF, then power ON again.

Is "CJ"displayed on the remote

controller?

YES


Replace remote controller.

External factor other than equipment malfunction.(for example, noise etc.)

(V2787)

NO

Troubleshooting 117

8 -%@-@& %%

“E1”( #: ;&

%%

;%

E1

0%-%

$%

!

$@

$%

;

<DN(+

$%

;

?< <N(+

N(+C" 7<<"7

""

5 (=!(>

8 -%@

Turn off the power once and turn on again.

Return to normal?YES



Replace the outdoor unit main PC Board (A1P).

(V3064)

NO

118 Troubleshooting

8 -%@-@& %%

“E3”( #0<@ ,@&

%%

;%

E3

0%-%

$%

!

$@

$%

;

! 7<<<< ,<"" 7 <"

$%

;

,7<<;( <<" <"

! < ,<"7 <

5; ,<"7 <

5 (

"7

'< ,<"

8 -%@

C! < ,<"7 <=;(>

^ < < <, _

^ 5

^ < ,6<,_

^ '< ,<"


Operationis normal when turned

on again by remotecontroller.

Replace outdoor unit PC board (A1P).

Actuation of high pressure switch. H1

YES

YES

There was an instantaneous power failure or a past safety device actuated.Re-check refrigerant system.

NO

NO

(V3065)

Contact S1PH is open.

Connect the connector and operate again.

NO

YES

Are theHPS connectors

connected to the outdoor mainPC Board (A2P)?

H1

Troubleshooting 119

8 -%@-@& %%

4 “E4”( #0!, ,@&

%%

;%

E4

0%-%

$%

!

$@

$%

;

! "7 <7"

$%

;

,7<<7" """ "

!"7"

57"

5 (

" "

120 Troubleshooting

8 -%@-@& %%

8 -%@

∗C4,"

∗C+A(BE",< (*

(V2791)


Is the malfunctiondue to abnormal drop of low

pressure?

Measurethe voltage (VL)

of X45A pin No. (2) - (3)of outdoor PC board (A1P).∗1

Is the relationshipbetween low

voltage and VLnormal?

∗2

Out of gas, refrigerant system clogging, wiring and piping wrong connection, stop valve closed, electronic expantion valve fully close malfunction.

Replace the low pressure sensor.

Replace outdoor unit PC board A1P.

NO

NO

YES

YES

Is stop valve opened? Open stop valve.NO

YES

Troubleshooting 121

8 -%@-@& %%

A “E5”( #& $ !H

&

%%

;%

E5

0%-%

$%

!

$@

$%

;

(D<" ,4? 7<

"E<" ,"

$%

;

<" ,7 <# "9 7<"

"E 7<"D?<<"

,

"D

; ,< "=%#" >

4?7 ,

' (

"

8 -%@

Check the installation conditions.

Is the stop valve open?NO

Is the UVWN wiringnormal?

NO

NO

NO

NO

Is highdifferential pressure

starting? (73 psior more)

YES

YES

YES

Check and seewhether compressor is

short-circuited orground.

YES

YES

Are inverteroutput voltages the same

for 3 phases?

Does low orhigh pressure vary

even instantaneously whenrestarting

compressor?

YES


Open the stop valve.

Connect correctly.

Remedy the cause.

Replace the compressor.

Replace the inverter PC board (A2P).


(V2793)

NO

122 Troubleshooting

8 -%@-@& %%

7 “E7” ( #$%( 9$ &

%%

;%

E7

0%-%

$%

!

$@

$%

;

,<"<

7<<

$%

;

?<<7 <"<" -87<<

,

?< ,- E<<7

<<7( E

' ,,

, C"8 =>

Troubleshooting 123

8 -%@-@& %%

8 -%@

<DC+()

<DC+()

Check No. 1Check on connector of fan motor (Power supply cable)

Check No. 2 Check for Fan Speed Pulse Input on Outdoor Unit PC Board.

YES

NOReplace the fan motor of outdoor unit.

Replace outdoor unit PC board.

(V3077)

Is the pulse inputted?

Connectorof fan motor isdisconnected.

YES

NO

NO

YES

Can the fanbe turned smoothly

with hand after disconnect the connector of

fan motor?

Is there anyobstacle around

the fan?

YES

NO


Connect the connector.

Remove the obstacle.

Replace the fan motor of outdoor unit.

124 Troubleshooting

8 -%@-@& %%

“E9”( #$%$* .% ./5%*

&

%%

;%

E9

0%-%

$%

!

$@

$%

;

<D

<D "

$%

;

,"7""7<<"7

5 ," "

5 (=!(>

8 -%@

(V3067)

YES


Return to normal?

Turn power supply off, and turn power supply on again.

Electronicexpansion valve is

connected to X26A andX28A of outdoor unit

PC board(A1P).

Normalwhen coil

check (∗1) of the movingpart of the electronicexpansion valve is

checked.


NO

NO

NO

Replace the moving part of the electronic expansion valve.


After connecting, turn the power off and then back on again.

YES

YES

Troubleshooting 125

8 -%@-@& %%

∗ <D<< ,"< "

5 < " <(<D< 7

<"

=>

C !"" #33ΩC !"" 83Ω

L C

( ?< /7 #, -2 8+ $27

?< L!"" #33Ω

L!"" 83Ω

L

/7 L!"" #33Ω

L!"" 83Ω

#, L!"" 83Ω

L

-2 L!"" 83Ω

8+ L

$27

126 Troubleshooting

8 -%@-@& %%

“F3”( #0- &%;@

8&

&

%%

;%

F3

0%-%

$%

!

$@

$%

;

! ,<"< <," "

"

$%

;

?<< <," "" < ,<

?<< <," ""

' <," ""

' <," "<

' (

8 -%@

∗+A< + "< B(*3

(V3182)


Discharge pipetemperature is 239˚F

or higher.

Arethe characteristics

of the discharge pipethermistor normal?

(3.5~400KΩ)


Replace the discharge pipe thermistor.

NO

NO

Out of gas, compression defect, etc. Defect of the refrigerant system.

YES

YES

Troubleshooting 127

8 -%@-@& %%

“H9”( #$%8@ & )8+

( 0

&

%%

;%

H9

0%-%

$%

!

$@

$%

;

<

$%

;

?<< "<< "

5< =+>

5 (=!(>

8 -%@

< "7<< ,

∗+A< + "< B(*3

(V3070)



disconnecting the thermistor(R1T) from the outdoor


Connector is connected to outdoor

PC board(A1P).



NO

NO


YES

YES

128 Troubleshooting

8 -%@-@& %%

“J3”( #$%;@ 8@ & )8+

&

%%

;%

J3

0%-%

$%

!

$@

$%

;

<" <," ""

<

$%

;

?<< " < <," ""<

5< =+#> <," "

5 (=!(>

8 -%@

∗+A< + "< B(*3

(V3072)



disconnecting the thermistorR3T from the outdoor




NO

NO


YES

YES

Connectoris connected to

outdoor unit PC board

(A1P).

Troubleshooting 129

8 -%@-@& %%

“J5” ( #$%8@ & )8+

&

%%

;%

J5

0%-%

$%

!

$@

$%

;

<"< " ""

<

$%

;

?<< " < " ""<

5< =+> " "

5 (=!(>

8 -%@

∗+A< + "< B(*3

(V3073)



disconnecting the thermistor(R2T) from the outdoor

unit PC board. (3.5kΩ ~360kΩ)



NO

NO

Replace the thermistor R2T.

YES

YES

Connectoris connected to outdoor

unit PC board.(A1P)

130 Troubleshooting

8 -%@-@& %%

“J6”( #$%8@ & ) 8+

( <./@

&

%%

;%

J6

0%-%

$%

!

$@

$%

;

<"<< <,<

$%

;

?<< " << <,<

5< =+-> < <,

5 (=!(>

8 -%@

∗+A< + "< B(*3

(V3074)



disconnecting the thermistorR4T from the outdoor

unit PC board. (3.5kΩ~360kΩ)



NO

NO

Replace the thermistor R4T.

YES

YES

Connectoris connected to outdoor

unit PC board(A1P).

Troubleshooting 131

8 -%@-@& %%

“J9” ( #$%-%<./@ M8@ & )8+

&

%%

;%

J9

0%-%

$%

!

$@

$%

;

,<" ,< <,

," "<

$%

;

?<< ,< <,," "< < "

' ,< <,," "< =+8>

' (

8 -%@

∗+A< + "< B(*3

(V3075)


Is theresistance

measured afterremoving the thermistor

(R5T) from outdoor unit PC board normal.

(3.5 kΩ to360 kΩ)


Connect thermistor and turn on again.

NO

NO


YES

YES

Is theconnector for

subcooling heatexchanger gas pipe

thermistor connected to outdoor unit PC

board (A1P)

132 Troubleshooting

8 -%@-@& %%

4 “JA”( #$%<@ &

%%

;%

JA

0%-%

$%

!

$@

$%

;

<"<< ,<"

$%

;

?<<< ,<" < "

5< ,<"

7"7 <7,

5 (

Troubleshooting 133

8 -%@-@& %%

8 -%@

∗C4,"

∗C+A(BE",< (*

(V2806)


Therelationship

between the ∗1VH and high pressure

is normal (see ∗2) whenvoltage is measured between

X46A pins (1) and (3) ofoutdoor unit PC

board (A1P)(see ∗1).

Replace the high pressure sensor.

Connect the high pressure sensor and turn on again.

NO

NO


YES

YES

The highpressure sensor is

connected to X46A ofoutdoor unit PCboard (A1P).

134 Troubleshooting

8 -%@-@& %%

A “JC”( #$%!, &

%%

;%

JC

0%-%

$%

!

$@

$%

;

"7"

$%

;

?<<7" < "

57"

< ,<"7 <7,

5 (

8 -%@

∗C4,"

∗C+A(BE",< (*

(V2808)


Therelationship

between the ∗1VL and low pressure is

normal (see ∗2) when voltageis measured between X45A pins

(2) and (3) of outdoor unitPC board (A1P)

(see ∗1).

Replace the low pressure sensor.

Connect low pressure sensor property and restart system.

NO

NO


YES

YES

The lowpressure sensor is

connected to X45A (blue)of outdoor unit PC

board (A1P).

Troubleshooting 135

8 -%@-@& %%

7 “L4”( #$%* 98&

&

%%

;%

L4

0%-%

$%

!

$@

$%

;

' " << <

$%

;

?<<"< 3K'

! <=!3K'>

5 (

5 <

8 -%@

∗+A< + "< B(*3

(V3183)

Resistancecheck of the radiator fin

thermistor

Measure the resistance of the radiator fin thermistor.

Defect of power unit radiation.• Intake port is clogged• Radiator fin is dirty• Outdoor temperature is highNO


YES

Abnormal

Is reset possible?

Reset and operate.

Normal

Replace the inverter PC boardNO

YES

Temperatureof the radiator fin rises.

Actuates at min.210˚F


136 Troubleshooting

8 -%@-@& %%

“L5”( #* & 0- &%

&

%%

;%

L5

0%-%

$%

!

$@

$%

;

7 , <"7

$%

;

?< 7 <"7

= >

5" = E >

"6" =< D>

5 (

8 -%@

; ,<,< "7<< ", <D

(V2812)


Compressor inspection

Inverteroutput

voltage checkInverter output

voltage is not balanced. (Normal if within ±5V Must

be measured whenfrequencyis stable.


Compressor inspectionInspect according to the diagnosis procedure for odd noises, vibration and operating status of the compressor.

NO

Replace the inverter unit.

YES

YES

Correct power supply.YES

Thecompressor's

coil is disconnected or the insulation isdefective.

NO

NO

Disconnect the connection between the compressor and inverter. Make the power transistor check mode setting ON by service mode.

There is instantenious power

drop.

Troubleshooting 137

8 -%@-@& %%

“L8”( #* 0- &%

&

%%

;%

L8

0%-%

$%

!

$@

$%

;

7 , <"7

$%

;

?< <"

"

"

5 (

138 Troubleshooting

8 -%@-@& %%

8 -%@

(V3184)


Output current check

Inverteroutput

voltage check Inverter output voltage

is not balanced (Normal if within ±5V).

Must be measuredwhen frequency

is stable.

Compressor overloadInspection of the compressor and refrigerant system is required.


NO

Replace the inverter PC board.

YES

NO

Reset and restart.NO

The secondarycurrent of the inverter is

higher than 24.9A for each phase.


NO

YESCompressor

inspection Thecompressor's coil is

disconnected.

YES

YES

Disconnect the the connection between the compressor and inverter. Make the power transistor check mode setting ON by service mode.

After turningon again, "L8" blinks

again.

Troubleshooting 139

8 -%@-@& %%

“L9”( #* . &

%%

;%

L9

0%-%

$%

!

$@

$%

;

7 , <"7

$%

;

?< <" ,"

5"

(

5 (

8 -%@


Inverteroutput

voltage checkInverter output voltage

is not balanced. (Normal if within ±5V) Must

be measured whenfrequencyis stable.

Unsatisfactory pressure equalizationCheck refrigerant system.


YES

Replace the inverter PC board

NO

NO

Reset and restart.NO

The differencebetween high and lowpressure when starting

is above29 psi.

YES

YES

Disconnect the connection between the compressor and inverter. Make the power transistor check mode ON by service mode.

After turningon again, "L9" blinks

again.

(V2814)

140 Troubleshooting

8 -%@-@& %%

“LC”( #$%8 &-,

* %:

&

%%

;%

LC

0%-%

$%

!

$@

$%

;

<D< 7 (( 6

"

$%

;

?<< "

7< ((

5(= >

5 (

5

= >

Troubleshooting 141

8 -%@-@& %%

8 -%@

(V3185)


Thetransmission

wiring between theoutdoor unit PC board

inverter unit isdisconnected.

YES

Fix the disconnection and turn on again.

Connect transmission wiring and turn on again.

NO

YES

The voltagebetween red and

white of X1A on the inverterunit is the power supply

voltage.

Check the noise filter (Z1F) for disconnection, and check the power supply wiring or the inverter PC board.

Replace inverter PC board.

When the LC malfunction occur again, replace control PC board.

NO

NO

YES

NO

Are theconnectors

between the mainPC board (A1P) andinverter PC board (A2P) connected

securely?

Themicrocomputer

monitor (green) onthe inverter PC board

is blinking.

Defect of outdoor main PC board or defect of inverter PC board.

YES

142 Troubleshooting

8 -%@-@& %%

“P4”( #$%* 98&

&

%%

;%

P4

0%-%

$%

!

$@

$%

;

+ < 7<<" " ,

$%

;

?<< < 9 "<

7< < "

P(-P7 "" ,< "

5 "

5 (

8 -%@

∗+A< + "< B(*3

(V2818)

After resetting, restart.

YES

YES

Is theresistance of thermistor

correct?

Is the resetting possible?

Replace inverter PC board.

Measure the resistance of radiation fin thermistor.

NO

Replace inverter PC board.NO


Troubleshooting 143

8 -%@-@& %%

“PJ”( #9%&-*

9; *

&

%%

;%

PJ

0%-%

$%

!

$@

$%

;

<D< 7 (( 6

"

$%

;

?<< ("

< , (

' ,

8 -%@

∗+A' , B(%3

(V3151)

After resetting, restart.

YES

YES

YES

Is thePC board type

correct?

Is the field setting when

the PC board was replaced correct?*

Replace PC board by the correct one.

Replace the PC board.

NO

Was the PC board replaced?

NO

Correct field setting.NO


144 Troubleshooting

8 -%@-@& %%

“UO”( #!, ; ; @ .% ./5%*9%

&

%%

;%

U0

0%-%

$%

!

$@

$%

;

<, <," ""<

$%

;

"G, < < ,

7< < "

, ,,, ,= " " ,>

5< ++-

5"

5 (=!(>

8 -%@

(V2819)

The suctionpipe temperature minuscoil temperature is 68˚F

or higher.

Resistanceis normal when

measured with thesuction pipe thermistor

(R2T) and coil thermistor(R4T) disconnected from

the outdoor unit PC board.(3.5kΩto 360 kΩ)

Out of gas or refrigerant system is clogged. Requires check of refrigerant system.


Replace the outdoor unit PC board (A1P).

YES

NO

NO

Out of gas, closing of stop valve or refrigerant system is clogged.

Replace main outdoor unit PC board (A1P).

YES

YES

NO

CoolingLow pressure

is 15 psior less.

Thevoltage

of X45A pins (2) and (3) on main

outdoor unit PC board(A1P) is 0.8 VDC or less.

(Low pressuresensor output

voltage)

NO

NO

YES

YES

Replace low pressure sensor.


Troubleshooting 145

8 -%@-@& %%

4 “U2”( #, % 9%

&

%%

;%

U2

0%-%

$%

!

$@

$%

;

5 , " < "7"",

$%

;

?<<" <,*34

(7""

5 (

5(

7 ,

146 Troubleshooting

8 -%@-@& %%

8 -%@

Correct power supply.NO

Is the voltage ofpower supply208~230 V?


(V3186)

NO

YES

YES

YES


Doesthe voltage

between terminals Pand N gradually rise to

283VDC afterturning

on?

Thevoltage

between the P and Nterminals is 190VDC

or more whenthe compressor is

running.

NO

Is the power supply voltage

at the connector X1A ofoutdoor PC board

side?

Is thepower supply voltage applied at LB and NB

on the noise filterPC board?

Monitor field power supply.

Check the transmission wiring between the outdoor unit PC board and inverter unit.

NOReplace the inverter PC board.

YES

NO


Turn on again.

YES

Troubleshooting 147

8 -%@-@& %%

A “U3”( #@H( ./&

%%

;%

U3

0%-%

$%

!

$@

$%

;

<D"

$%

;

7<< " 7 <<D"

<D"

8 -%@

(V3052)

Has the check operation

performed on Outdoor unit PC board?

Press the BS4 on PC board on the master outdoor unit for 5 seconds or more to execute check operation.

Replace the main PC board on the outdoor unit.

NO

YES


148 Troubleshooting

8 -%@-@& %%

7 “U4”$%8 &-,

(

&

%%

;%

U4

0%-%

$%

!

!

$@

$%

;

"<D 7

$%

;

?<

E 7 ,'E' E<

7,7 ,

"7"" ''

@<

5 (

5 (

Troubleshooting 149

8 -%@-@& %%

8 -%@

(V3187)


Isindoor - outdoor

and outdoor - outdoor unittransmission wiring

normal?

Supply 208~230 V.

Replace the fuse.

Fix the indoor/outdoor or outdoor/outdoor unit transmission wiring.

Push and hold the RESET button on the outdoor unit PC board for 5 seconds.

Replace the outdoor unit PC Board (A1P).

YES

YES

NO

YES

Replace the indoor unit PC Board.

Push and hold the RESET button on the master outdoor unit PC Board for 5 seconds.

Fix the indoor/outdoor or outdoor/outdoor unit transmission wiring.

YES

NO

NO

YES

Hasthe indoor

or outdoor unit PCboard been replaced,

or has the indoor - outdooror outdoor - outdoor unit

transmission wiringbeen

modified?

Allindoor unit

remote controllers of thesame refrigerant system

display"U4."

NOOutdoor

unit PC boardmicrocomputer monitor

(HAP) blinks.

NO

NO

NO Operationready lamp (H2P) is

blinking.

Lamp doesnot go off for 12 minutes

or more.

Is indoor- outdoor and outdoor -

outdoor unit transmissionwiring normal?

YESThe fuse on the outdoor unit's PC

board is burnt.

Replace the transformer.

Replace outdoor unit PC board. (A1P)

NOThe

secondary voltageof the transformer is about

22~24 V.

NO

Thevoltage between

terminals L1 and N of the outdoor unit PC board

is 208~230 V.

∗ The unit will not operate for up to 12 minutes.

Reset the power supply.

YES

YESYES

NO

YES

150 Troubleshooting

8 -%@-@& %%

“U5” #$%8 &-,

& %%

&

%%

;%

U5

0%-%

$%

!

$@

$%

;

,7 <6E<D< , " ,

7 = >

$%

;

" "

7 =7< ,>

5 (

5(

8 -%@


(V2823)

NO

YES YES

NO


Set one remote controller to "SUB"; turn the power supply off once and then back on.

There is possibility of malfunction caused by noise. Check the surrounding area and turn on again.

NO NO

Using2-remote controllers

control.

All indoorPC board microcomputer

monitors blink.

YESMulti-core cable

is used for the indoorunit remote controller

transmissionwiring.

Operationreturns to normal whenthe power is turned off

momentarily.

YES YESSS1 of

both remote controllersis set to "MAIN."

NO

Switch to double-core independent cable. replacement

Defect of remote controller PC board or indoor unit PC board. Replace whichever is defective.

Troubleshooting 151

8 -%@-@& %%

“U8” #$%8 &-,

$-& %%

&

%%

;%

U8

0%-%

$%

!

$@

$%

;

,7 <6E<D< , " ,

7 = >

$%

;

" "

7

7

5(

8 -%@


(V2825)

SS1of both remote controllers is

set to "SUB."

Set SS1 to "MAIN"; the power supply off once and then back on.

Set one remote controller to "MAIN"; the power supply off once and then back on.

Turn the power off and then back on. If a malfunction occurs, replace the remote controller PC board.

YES

YESYES

NO

NO

NOUsing 2-remote controllers control.

SS1of remote controller PC boards

is set to "MAIN."

152 Troubleshooting

8 -%@-@& %%

“U9” #$%8 &-,

( @&&

&

%%

;%

U9

0%-%

$%

!

$@

$%

;

5< ,< 7 < <

$%

;

?<< < 7 < <

7 < <

" <

5( <

"" 7 ,7

Troubleshooting 153

8 -%@-@& %%

8 -%@


(V2826)

The "U4"display blinks on

the remote controllers ofother units within the

same refrigerantsystem.

Refer to failure diagnosis for "U5" malfunction code.

Re-diagnose by display after passage of 2 minutes or more.

NO

YES

Refer to failure diagnosis for "U4" malfunction code.

NO

YES

"U9"has been displayed for 2

minutes or more.

NO

Turn on all indoor units.

Refer to failure diagnosis for "A1" malfunction code.

NO

YES

The "A1" display blinks on



Refer to failure diagnosis for "UA" malfunction code.

YES

The "UA" display blinks on the

remote controllers of other units within the same

refrigerant system.

Refer to failure diagnosis for "A9" malfunction code.

NO

YES

The "A9"display blinks on



154 Troubleshooting

8 -%@-@& %%

“UA”& &- (

G & %%

&

%%

;%

UA

0%-%

$%

! ! +

$@

$%

;

! <" ,7 < <7,

$%

;

< <<

5 (=!(> < ,< ," ,(7" ,""(

8 -%@

∗ < < , "

<"


(V3169)

The totalof indoor units

displaying "UA" andindoor units connected to the

same refrigerant system iswithin connectable

number ofunit∗

Normal

NO

NO

There are too many indoor units within the same refrigerant system.

Push and hold the RESET button on the outdoor unit PC board for 5 seconds.

YES

Is the outdoor PC board replacedto spare parts PC

board ?

YESThe setting after replacing spare PC board has not been set yet.Refer page 70.

NO

YES

Does a malfunction occur?


Matches the refrigerant type of indoor and outdoor unit.

NO

YES

Does therefrigerant type of indoor

and outdoor unitmatch?

Troubleshooting 155

8 -%@-@& %%

“UC”0 ;% %& %%

&

%%

;%

UC

0%-%

$%

!

$@

$%

;

<" " << 7<

$%

;

< <

!" :

5 (

8 -%@


(V2828)


Address duplication of central remote controllerThe setting must be changed so that the central remote control address is not duplicated.

YES

NO

Optionalcontrollers for

centralized control are connected to the

indoor unit.

156 Troubleshooting

8 -%@-@& %%

“UE”$%8 &-, %

& %%

&

%%

;%

UE

0%-%

$%

!

$@

$%

;

"<D 7

$%

;

?<

7" :

,

' (

5 (

Troubleshooting 157

8 -%@-@& %%

8 -%@


Isthe power supply

turned on for indoor unitsdisplaying

malfunction?

Istransmission wiring

disconnected orwired incorrectly?

Isthe transmission

wiring with the mastercontroller disconnected

or wiredincorrectly?

Is themaster controller's

connector for settingmaster controller

disconnected?

Set the group No. correctly.


Fix the wiring correctly.


Connect the connector correctly.

Replace the central remote controller.

Reset power supply simultaneously for all optional controllers for centralized control.

YES

YES

NO

YES

YES

YES

YES

Turn indoor unit's power supply.

YES

NO

NO

NO

NO

NO

NO

Hasan indoor unit once

connected been removedor its address

changed?

Is the groupNo. of malfunctioning

indoor units set?

Istransmission with

all indoor unitsmalfunctioning?

(V2829)

158 Troubleshooting

8 -%@-@& %%

“UF”&

&

%%

;%

UF

0%-%

$%

!

!

$@

$%

;

< <<

7 <<, "" <D

$%

;

< < <,<

<D ,< <<D"

"" 7 ,7 6 6

' <D"

5 (

' "<"

8 -%@

"# ? ,<D" < <

<<E , <

<


(V2830)

Is indoor - outdoor

and outdoor - outdoor unit transmission wiring

normal?


Wiring check operation may not have been carried out successfully.

After fixing incorrect wiring, push and hold the RESET button on the master outdoor unit PC board for 5 seconds.

YES

NOYES

NO

NO

YESIs the check operation

carried out?

Is indoor-outdoor and outdoor-

outdoor unit transmissionwiring normal?

Open stop valve.

YES

NOAre the stopvalves openned?

∗ The unit will not run for up to 12 minutes.

Troubleshooting 159

8 -%@-@& %%

4 “UH”$%&G &0

&

%%

;%

UH

0%-%

$%

!

!

$@

$%

;

5 7 < ,

$%

;

< <

"" 7 ,7 6 6

5 (

5 (=!(>

8 -%@


(V2831)

NO

YES

YES

After fixing incorrect wiring, push and hold the RESET button on the master outdoor unit PC board for 5 seconds.

Normal

NO

Iselectricity

being introduce forthe first time after

installation or after an indooror outdo or unit PC

board has beenreplaced?

Isindoor - outdoor and

outdoor - outdoor unittransmission wiring

normal?

YES

NormalNODoes a

malfunction occur?

NODoes

a "UH" malfunction occurfor all indoor units in

the system?

YES NO

Doesa malfunction

occur even after 12minutes elapses from the

time when electricity is introduced to indoor

and outdoorunits?

YES



Push and hold the RESET button on the outdoor unit PC board for 5 seconds

∗ The unit will not run for up to 12 minutes.

160 Troubleshooting

8 -%@-@ %& %%

8 -%@-@ %

& %%

“UE”$%8 &-, %

& %%

& %%

;%

UE

0%-%

$%

!

+

$@

$%

;

"<D 7

$%

;

?<

7

,

' (

5 (

Troubleshooting 161

8 -%@-@ %& %%

8 -%@


Is thepower supply turned

on for indoor units displayingmalfunction?


disconnected or wired incorrectly?

Is thetransmission wiring

with the master controller disconnected or wired

incorrectly?

Is themaster controller's

connector for settingmaster controller

disconnected?






Replace the central PC board.


YES

YES

NO

YES

YES

YES

YES


YES

NO

NO

NO

NO

NO

NO

Hasan indoor unit once

connected been removeor its address

changed?


indoor units set?

Is transmissionwith all indoor units

malfunctioning?

(V2832)

162 Troubleshooting

8 -%@-@ %& %%

“M1”: ;&

%%

;%

M1

0%-%

$%

$@

$%

;

5 <56"

$%

;

?<R" 6" <

5(

8 -%@ +"<

Troubleshooting 163

8 -%@-@ %& %%

“M8”$%8 &-,(%

%% %C %

&

%%

;%

M8

0%-%

$%

$@

$%

;

5< ,56 =<7

>

$%

;

?< "< <"

?<" < :7< <7E<7

"

7" :

5(" :

8 -%@


(V2833)



The PC board of one of the optional controllers for centralized control is defective. Try turning on/off using each optional controllers for centralized control, and replace the PC board of the one that is unable to control the indoor unit.

NO

NO


YES

YES

Has a onceconnected optional

controller for centralized control been disconnected

or its addresschanged?

Turn on power supply for all optional controllers for centralized control.


YES

NO

Isthe power supply

turned on for all optionalcontrollers for

centralizedcontrol?

Set reset switch to "normal."

YES

NO

Isthe reset switch

of all optional controllersfor centralized control set

to ''normal?''

164 Troubleshooting

8 -%@-@ %& %%

“MA”& &-(% %%

%C %

&

%%

;%

MA

0%-%

$%

$@

$%

;

5< ,56

$%

;

?<<< E<" "

?< ""

?<<" "

"" " :

<

5(" :

Troubleshooting 165

8 -%@-@ %& %%

8 -%@


(V2834)

NO

NO

Cannot be used in combination with a wiring adaptor for electrical appendices. Remove the wiring adaptor for electrical appendices and reset the power supply for all optional controllers for centralized control simultaneously.

Schedule timer and parallel interface cannot be used in combination. Disconnect either the schedule timer or parallel interface and reset the power supply for all optional controllers for centralized control simultaneously.

Disconnect the schedule timer's individual / combined connector and reset the power supply for all optional controllers for centralized control simultaneously.

Arrange so that the connector for setting master controller is connected to one controller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously.

Disconnect the connector for setting master controller from the master controller, connect to another optional controller for centralized control and simultaneously reset all optional controllers for centralized control again. The controller connected by the connector for setting master controller when the malfunction is cleared is defective and must be replaced.

Reset the power supply forall optional controllers for centralized control simultaneously.

YES

YES

Isthe wiring adaptor forelectrical appendices

connected?

YESIs a schedule timerconnected?

Arethere two

or more optionalcontrollers for centralizedcontrol connected with the

connector for settingmaster

controller?

YESIs a parallel interfaceconnected?

NO

YESIs

the schedule timer's individual/combined

connector connected?

NO

NO

If the malfunction is still not cleared:

166 Troubleshooting

8 -%@-@ %& %%

“MC”0 ;%G&

&

%%

;%

MC

0%-%

$%

$@

$%

;

5< ,56

$%

;

7 <

!"

8 -%@


Are twoor more central

remote controllersconnected?

If the two units are both set to master controller mode or sub control mode, set either of the units to master controller mode and then rest the power supply of the central remote controller.

Reset power supply of the central remote controller.

NO

YES

(V2835)

Troubleshooting 167

8 -%@-@("'(99 %%

4 8 -%@-@("'

(99 %%

4 ( !&:%H

&

%%

;%

" " D

0%-%

$%

!

''

$@

$%

;

5< ,56

$%

;

7

,

5 ''

5 (

168 Troubleshooting

8 -%@-@("'(99 %%

8 -%@

(V2841)


Is thepower supply for

the indoor unit displayinga malfunction

turnedon?



Is thetransmission

wiring with the mastercontroller disconnected or

wired incorrectly?

Is themaster

controller's connector forsetting master controller

disconnected.







Reset power supply for all optional controllers for centralized control simultaneously.

NO

YES

NO

YES

YES

NO

YES

Turn the power supply of the indoor unit on.

YES

NO

NO

YES

NO

YES

NO

Has aonce connected

indoor unit been removedor its address

changed?

Diagnose the cause with the air conditioner's failure diagnosis manual.

NO

YES

Is amalfunction

code displayed on theremote controller?

Isthe group

No. of malfunctioningindoor units

set?

Istransmission

with all indoor units malfunctioning?

Troubleshooting 169

8 -%@-@("'(99 %%

4 ;%D %C %E:%H)

%:%H+

&

%%

;%

A :B=+" , D>

0%-%

$%

''

<

$@

$%

;

5< ,56

$%

;

?<< :E7< <7E<7"

<,""

?< ""

?<<< E< "

?<<7 ," "" "

!"

"" " :

<

7" :

5(" :

170 Troubleshooting

8 -%@-@("'(99 %%

8 -%@


(V2842)

Is thereset switch

of all optional controllersfor centralizedcontrol set to

"normal"?


disconnected or wiredincorrectly?

Correct the setting of the unified ON / OFF controller's switch for setting each address and reset the power supply of the unified ON / OFF controller.

Refer to failure diagnosis for central remote controller or schedule timer.

NO

YES

YES

NO

NO



NO

NO

YES

YES

YES

Is thepower supply

turned on for alloptional controllers for

centralizedcontrol?


NO

YES

Has a onceconnected optional

controller for centralized control been disconnected

or itsaddress changed?

Is thecentral remote

controller or scheduletimer displaying a

malfunction?

Isa central remote

controller or schedule timer connected?


NO

YES NO

Is the settingof the unified

ON / OFF controller'sswitch for setting

each addressduplicated?

Aretwo or more unified

ON / OFF controllersconnected?

YES

2A

Troubleshooting 171

8 -%@-@("'(99 %%

NO

NO


Schedule timer and parallel interface cannot be used in combination. Disconnect either the schedule timer or parallel interface and reset the power supply for all optional controllers for centralized control simultaneously.




Reset the power supply for all optional controllers for centralized control simultaneously.

YES

YES

Is thewiring adaptor for

electrical appendicesconnected?

YESIs a schedule timerconnected?

Arethere two or

more optionalcontrollers for centralizedcontrol connected with the


controller?

YESIs a parallel interface

connected?

NO

YESIs the

schedule timer's individual/combined

connectorconnected?

NO

NO


2A

(V2843)

172 Troubleshooting

8 -%@-@("'(99 %%

4 ;%D %C %E:%H)

;-%:%H+

&

%%

;%

A :B=+" D>

0%-%

$%

''

$@

$%

;

5< ,56

$%

;

?<

?< 7 < <,

=,">

"", ,7 <

""7 , 7 ,

8 -%@


(V2844)

Is the controlrange setting switch

set correctly?

Isthe transmission

wiring disconnected orwired incorrectly?

Replace the PC board of the unified ON/OFF controller.


Set by remote controller the central control address for all indoor units connected to the central control line.

YES

YES

Set the control range setting switch correctly and simultaneously reset the power supply for all optional controllers for centralized control.

NO

NO

NO

YES

Is the centralcontrol address (group No.)

set for theindoor unit?

Troubleshooting 173

8 -%@)(#@%8& +

A 8 -%@)(#@%8& +

A “UE”$%8 &-, %

& %%

&

%%

;%

UE

0%-%

$%

<

!

$@

$%

;

"<D 7

$%

;

?<

7

5 ,= 7 < ,

>

5< (

5 (

174 Troubleshooting

8 -%@)(#@%8& +

8 -%@


(V2836)

Isthe power supply

turned on for indoorunits displaying

malfunction?



Isthe transmission

wiring with the mastercontroller disconnected or

wired incorrectly?

Isthe master controller'sconnector for setting

master controllerdisconnected?








NO

YES

NO

YES

YES

NO

NO


YES

NO

NO

YES

YES

YES

NO

Hasan indoor unit

once connected beenremoveor its address

changed?


indoor units set?

Istransmission with all

indoor unitsmalfunctioning?

Troubleshooting 175

8 -%@)(#@%8& +

A “M1”: ;&

%%

;%

M1

0%-%

$%

<

$@

$%

;

5 <56"

$%

;

?<R" 6" <

5< (

8 -%@


Reset power supply.

Does thesystem return to normal?

YES

NO

External factor other than equipment malfunction (noise etc.)

Replace the schedule timer.

(V2837)

176 Troubleshooting

8 -%@)(#@%8& +

A “M8”$%8 &-,(%

%% %C %

&

%%

;%

M8

0%-%

$%

! E<

$@

$%

;

5< ,56 =<7

>

$%

;

?<<" :E7< <7E<7

"

7" :

5(" :

8 -%@


(V2838)


disconnected or wiredincorrectly?

The PC board of one of the optional controllers for centralized control is defective. Try turning on/off using each optional controllers for centralized control, and replace the PC board of the one that is unable to control the indoor unit.

YES

NO


YES

NO

Has a once connected

optional controller forcentralized control been

disconnected or its address changed?



YES

NO

Isthe power supply

turned on for all optionalcontrollers for

centralizedcontrol?


YES

NO

Isthe reset switch

of all optional controllersfor centralized control

set to "normal" ?

Troubleshooting 177

8 -%@)(#@%8& +

A “MA”& &-(% %%

%C %

&

%%

;%

MA

0%-%

$%

!

<

$@

$%

;

5< ,56

$%

;

?<<< E<" "

?< ""

"" " :

<

5(" :

178 Troubleshooting

8 -%@)(#@%8& +

8 -%@





Reset the power supply for all optional controllers for centralized control simultaneously.

YES

YES

NO

Is the schedule timer connected?

Arethere two or

more optionalcontrollers

for centralized control connected with the


controller?

YESIs the scheduletimer's individual/combined

connector connected?

NO

NO


YESIs the wiring

adaptor for electricalappendicesconnected?

NO

Schedule timer and parallel interface cannot be used in combination. Disconnect either the schedule timer or parallel interface and reset the power supply for all optional controllers for centralized control

YESIs a parallel interface connected?

NO


(V2839)

Troubleshooting 179

8 -%@)(#@%8& +

A “MC”0 ;%G&

&

%%

;%

MC

0%-%

$%

! E

<

$@

$%

;

5< ,56

$%

;

?<7<

!" <

8 -%@


(V2840)

Are two or moreschedule timer

connected?

Reset the power supply for the schedule timer.

Disconnect all schedule timer except one and reset the power supply.

YES

NO

180 Troubleshooting

@H

7 @H

@H" @H & ), %-%+

=> <"7""

< 7"<E4E?< =<6

7 ><D<<< < ,E7<

Red

White

Black

U

V

W

Measure the resistancevalues between phasesU,V,W.

Troubleshooting 181

@H

@H" @H 9%( :

=> 5 <.3$!7 <<"7""''" ''

=> <,7" -#.3$!845 ,<"7""

_

=#> <,7" -.3$!845_

=-> <.3$!7 <<"7""''" ''

=8> ?<D ,<""< ,<"7""E

"=384>,- 7" -.3$!_=<

<< 7 <<>

=$> 5 <.3%!7 <<"7""''" ''

=%> <,7" -#.3%!845 ,<"7""

_

=)> <,7" -.3%!845_

=*> <.3%!7 <<"7""''" ''

=3>?<D ,<7< ,<"7""E

"=384>,- 7" -.3%!_

=>=%>C→'(→+"<(

=#>=)>C→'(→+"<(

=8>=3>C→'<→+"<5

=>=#>=8>=%>=)>=3>C/→+"<(

1

2

3

4

5

6

7

Fan speed pulse input (0V and 5V)

0V

15V

GND

NC

NC

250~350V(during operation)(S2679)

182 Troubleshooting

!"" )#

Part 8Part 8Part 8Part 8AppendixAppendixAppendixAppendix

( " ,5 ,)- )-

)8

? ,5 ,+)$ )$

)%

# < + "< *3

- ( *

; &

; &

(

12$34$56

12$3 7$56

3D047385

184 Appendix

; &

9193$'7$' $'$'4$56

913$'7$' $'$'4$' 7$56

91$3$'4$' 7$56

91<3$' $'4$56

9103$'7$' $56

91!3$'7$' $56

91"3$'7$' $56

+C< "

+C< 9 "

+#C< , "

= >

J:DU220-602J

Heat exchangerGas piping connection port

Liquid piping connection port

Fan

R3T

R1T

Electronicexpansion valve

Filter Filter

R2T

" F! & 9

) φ φ--#3#$-) φ8) φ#)

Appendix 185

; &

; &

(

12$34$56

12$3 7$56

3D04

7361

B

186 Appendix

; &

9193$'7$' $'$'4$56

913$'7$' $'$'4$' 7$56

3D042620B

3D043177A

Appendix 187

; &

91$3$'4$' 7$56

9103$'7$' $56

3D043176A

3D046039A

188 Appendix

; &

91<3$' $'4$

91!3$'7$' $56

91"3$'7$' $56

3D048116

3D045644A

Appendix 189

8@ & '8& @

8@ & '8& @

' +

' 9 " " +

'," " +#

' +

' +

' " " +-

'+ ," " +8

K' K DΩ K' K DΩ6-3 63 *%) )$3 #3 $3

6 6* )$8# )%) # 8-#

63- 6) %8*% )*$ # -%*

- 6% $$3% *- ## -)

# 6$ 8$)3 *# #- #8*

83 68 -)3 *83 #8 #3-

$) 6- #**- *$) #$ 8

)$ 6# #) *)$ #% 3

3- 6 83* 33- #) 8

6 )#- 3 #* 3$

-3 63 ** 3-3 -3 3$#

8) 6* 3$3# 38) - 3

%$ 6) 33- 3%$ - *)

*- 6% *8- 3*- -# *-

6$ *3% -- *3$

#3 68 )8-* #3 -8 )%

-) 6- )3) -) -$ )#%

$$ 6# %$*# $$ -% )38

)- 6 %#3 )- -) %%8

#3 6 $*# 3 -* %-$

#3 3 $8)- 3 83 %)

##) $8- #) 8 $*

#8$ 8*-# 8$ 8 $$8

#%- # 8$-* %- 8# $-

#* - 8#% * 8- $$8

-3 8 83* #3 88 $-

-) $ -)$ #) 8$ $)

--$ % -$$ #-$ 8% 8*8

-$- ) --38 #$- 8) 8%-

-) * -*8 #) 8* 8-

833 3 #**$ -33 $3 -*$

8) #)3) -) $ -%*

8#$ #$#3 -#$ $ -$

88- # #-$ -8- $# --$

8% - ##3 -% $- -#3

8*3 8 #83 -*3 $8 -$

$3) $ #33$ 83) $$ -3

$$ % )%3 8$ $% #))

$-- ) %- 8-- $) #%8

$$ * $) 8$ $* #$

$)3 3 83 8)3 %3 #83

$*) #* 8*) % ##)

%$ )8 $$ % #%

%#- # )8 $#- %# #$

%8 - 3*3 $8 %- #3$

%%3 8 333 $%3 %8 *$

%)) $ *- $)) %$ )$

)3$ % )# %3$ %% %%

)- ) %8- %- %) $)

)- * $)3 %- %* $3

)$3 #3 $3 %$3 )3 8

< +

K' K DΩ- 63 H

) 6) H

6$ ))3

8 6- %*

) 6 %

# 3 $-

#8 8%)

#* - 8#

-# $ -%#

-$ ) -*

83 3 #)*

8- #8#

8% - #

$ $ *

$- ) $$

$) 3 -#

%

%8 - 3#

%* $ )8

) ) %3

)$ #3 8$

*3 # -

*# #- #

*% #$ 3

33 #)

3- -3 3#

3) - *8

-- ))

8 -$ )

) -) %$

83 %3

$ 8 $%

* 8- $3

## 8$ 88

#$ 8) 8

-3 $3 -%*

-- $ --$

-% $- -8

8 $$ #)%

8- $) #$

8) %3 ##%

$ % #8

$8 %- *-

$* %$ %8

% %) 8

%$ )3 -

)3 ) $

)# )-

)% )$ **

*3 )) )%

*- *3 %$

*) * $8

3 *- 88

38 *$ -$

3) *) #)

190 Appendix

8@ & '8& @

(

8@ &

;@

)8+

K' K DΩ K' K DΩ K' K DΩ#3 3 $-3-- 3 83 %# 3 33 ##8

##) $3*# #) 8 $*$- #) 3 *8

#8$ 8%**$ 8$ 8 $%3$ 8$ 3 8%

#%- # 8833 %- 8# $-$3 %- 3# 3

#* - 88$# * 8- $- * 3- )-

-3 8 833$$ #3 88 8**% 3 38 -*

-) $ -%%3 #) 8$ 8%)3 ) 3$ 8

--$ % -8-$3 #-$ 8% 88% -$ 3% 3)#

-$- ) -###% #$- 8) 8#% $- 3) 38

-) * -#- #) 8* 8*) ) 3* 3

833 3 #*-$ -33 $3 -**$ #33 3 **

8) #%$38 -) $ -)* #) *$-

8#$ #8))) -#$ $ -$-* ##$ *#$

88- # #-8) -8- $# --)$ #8- # *3

8% - #%3 -% $- -##3 #% - ))-

8*3 8 #- -*3 $8 -%* #*3 8 )8*

$3) $ *)-8 83) $$ -3#8 -3) $ )#8

$$ % )8) 8$ $% #)*$ -$ % )

$-- ) %8) 8-- $) #%$# --- ) %)*

$$ * $3$3 8$ $* #$#- -$ * %$)

$)3 3 -*33 8)3 %3 #8 -)3 3 %-%

$*) #)#$ 8*) % ##* -*) %$

%$ )38 $$ % #%) 8$ %3$

%#- # )- $#- %# #$* 8#- # $)%

%8 - 3)*3 $8 %- #3$# 88 - $$*

%%3 8 3333 $%3 %8 *$ 8%3 8 $8

%)) $ *8# $)) %$ )$- 8)) $ $##

)3$ % )#-$ %3$ %% %$* $3$ % $$

)- ) %8%% %- %) $%* $- ) $33

)- * $)-- %- %* 8* $- * 8)-

)$3 #3 $-8 %$3 )3 83% $$3 #3 8$*

)$3 # 8-%* %%) ) -$ $%) # 88-

)%) # -)-# %*$ ) #-) $*$ # 8#*

)*$ ## -#% )- )# %# %- ## 88

*- #- #$8* )# )- 3 %# #- 8

*# #8 #3$ )83 )8 # %83 #8 -*)

*83 #$ 8%* )$) )$ 3$# %$) #$ -)$

*$) #% 3%$ ))$ )% **) %)$ #% -%#

*)$ #) 8*8 *3- )) *#$ )3- #) -$

33- #* #8 * )* )%8 ) #* --*

3 -3 3$*$ *-3 *3 )% )-3 -3 -#)

3-3 - 3%$ *8) * %$ )8) - -%

38) - *)%8 *%$ * %3% )%$ - -$

3%$ -# *-* **- *# $8- )*- -# -3$

3*- -- *8 3 *- $3- * -- #*$

-8 )%%- 3#3 *8 888 *#3 -8 #)$

#3 -$ )-#) 3-) *$ 83) *-) -$ #%$

-) -% )$ 3$$ *% -$ *$$ -% #$%

$$ -) %)3* 3)- *) -) *)- -) #8)

)- -* %8- 3 ** #%$ #33 -* #-*

3 83 %# 3 33 ##8 #33 83 #-

Appendix 191

High Pressure (PH)

Low Pressure (PL)

PH : Detected Pressure [High Side]PL : Detected Pressure [Low Side]VH : Output Voltage [High Side] VDC

VL : Output Voltage [Low Side] VDC

PH = 1.38V-0.69PL = 0.57V-0.28PH : High pressureVL : Low pressureV : Voltage (V)

Output Voltage (VH, VL)

Detected Pressure

(V3053)

192 Appendix

( 7+ ,=+-3> *#

Part 9Precautions for NewPrecautions for NewPrecautions for NewPrecautions for NewRefrigerant (R410A)Refrigerant (R410A)Refrigerant (R410A)Refrigerant (R410A)

( 7+ ,=+-3!> *- *-

*$

", ) 0+

", ) 0+

(% 0- 0

< 7 ,E+-3!

(

!<"++-3%

(

?D ," "" - <++-3%

# + ,"

'7" " E 0 6:" ,

6:" ,C 7 ,< ,

,"

0 6:" ,C 7 ,< ,

,"

# < ," <"(<

<"

=+> ( 3*%$D,

( -8"

;' = ,7 ,> ;'

+ , +-3% +-3! +

" ,

6:" ;'#E;'8;'#-=[>

0 6:" ;'#I'8=[>

,6" ,

5 ,"

#(=,,">

W#$D,

W-$-"

-3( =,, ">W-3)D,

W8)3"

%8( =,,">W)3D,

W#**"

+ , < =<> = >

: =5(>

3 3 338

Pressure-Enthalpy curves of HFC-32/125 (50/50wt%)

*- ( 7+ ,=+-3!>

", ) 0+

< < +-3!

Temperature( )

Steam pressure (kPa)

Liquid Vapor

Density (kg/m3

)Liquid Vapor

Specific heat at constant pressure (kJ/kgK)Liquid Vapor

Specific enthalpy (kJ/kg)

Liquid Vapor

Specific entropy(kJ/KgK)

Liquid Vapor

( 7+ ,=+-3!> *8

", ) 0+

*8%+-3! < ,<7D ,"E"" ,=+E+-3%>

'<E< , ,< <<, < E

, E, < ,<"<E

,, <,<<7 <" ,=+E+-3%>

"<7 ,

2

"

!<<,<" "D ,E'3 <" :

<,<

"" < D

[ C=!>

;C;=57>

"

+<,;' ;'

+-3! +-3% +

F, <,<

25<++-3!

2<" +-3!+-3%

<, , 2? ,< , ;'

F 2<;'

4""=""7 <7" >

2 ,"";'E"""

? ,< ,

<,<"

2 7+;'

2<" 7+-3!<

' ,=<"> 2'+-3!E,,

97< 296"8)

( "

( " "

( "

( " , 25 , ,<

<,= >

+ ,

<D

+ ," " , <<72φ* <,;

7< <" PP

Pipe size

φ6.4φ9.5

φ12.7φ15.9φ19.1φ22.2φ25.4φ28.6φ31.8φ38.1φ44.5

Material

OOOOO

1/2H1/2H1/2H1/2H1/2H1/2H

Material

OOOO

1/2H1/2H1/2H1/2H1/2H1/2H1/2H

Thickness[mm]0.80.80.81.01.01.01.01.01.21.41.6

Thickness [mm]

0.80.80.81.01.01.01.01.01.11.41.6

R407C R410A

*$ ( 7+ ,=+-3!>

", ) 0+

9% %

"

2 5 !

5

2 <, !

,7<<7D" <,

=<,7D">

( E" " , 3387" ,'+-3!

E"" " ,7 <" " , 38

='<">

7 <" " , G

Flare gauge

Nominal size

1/4

3/8

1/2

5/8

3/4

Tube O.D.

Do

6.35

9.52

12.70

15.88

19.05

Class-2 (R410A)

9.1

13.2

16.6

19.7

24.0

Class-1 (Conventional)

9.0

13.0

16.2

19.4

23.3

+0-0.4

Unit:mm

A

Dimension A

For class-1: R407CFor class-2: R410A

( 7+ ,=+-3!> *%

", ) 0+

8 B, @

"

2 5 2 C

<, ,< ,9

<, " "< :

5

2 <, 2

PE8)P

5&&,@@H*%*

"

2 5 <," ,

83 =83;:> Q-8" =8Q%88;,>

$3 =$3;:>

2 "'%$63=-'>

'63=8$'>7 <"

5

2 9 ""7 < " 7

2 ( "" ,"

: 6 6 (

- $ -

8) % * %

Dimension B

For class-1: R407CFor class-2: R410A

Vacuum pump adapterReverse flow preventive vacuum adapter

*) ( 7+ ,=+-3!>

", ) 0+

!H

"

2 ;, ,"E

2 !"" ,

+-3!E+-3%E+-3-!E+83%!E+#-E

5

2 ( < ;' < E7

<,

%

"

2 < E< " " ,7D ,

2 < ,< ,"

5

2 +-3!+

4 M&% 0

"

2 ; ,<",,

8%%3" =6%$;,8#D,>

2 &7",,

8883" =6%$;,#)D,>

( 7+ ,=+-3!> **

", ) 0+

2 -P→ 8$P= →8 >

2 ",,

→ '"

2 " < < "7"" ,

5

2 <, "

2 <, "

A @ @ 0

"

2 ?D ,"%#%" =8)D,>

2 +""#$)8" =8*D,>

2 ! 7 <7 <<6"<" ,7

5

2 ("<

2 <, "

2 ;'

7 @ %

"

2 7 ,< ,<, 7<, ,

5

2 < , , <, ,

<, ,

?<+-3! <, 9 ,<, , E ,"<

, <, ,

(Hose with ball valve)

Can not be used

33 ( 7+ ,=+-3!>

", ) 0+

@ @

"

2 ; ,<

!3!=36D, >WT,

!32=36D, >WT8,

2 9 ""7 <"6 ,<,<D 9 ,<, ,

2 ! 7 <"";'" , 9 ""

5

2 7 ,<"<, , ,<, ,

@ &@

"

2 '+-3!E-P→8$P= →8 >

2 <,+;62+

5

2 <,<" < ='<+-3!>

2 <, <;'

( 7+ ,=+-3!> 3

", ) 0+

3 ( 7+ ,=+-3!>

IndexIndexIndexIndex

A

!

!!

"

# #$

%

&

!

C'

'"

' "

'

(

)* $

)* $

) ""#$"

) $

)!)!+ "

'&

)

,

$

-!

D

"#$

+.(/)

0)1

+.(/)

0)1

22

E3 $

3

3

3"

3

3 "

$

22,

2

F%

04%1)#2

2!

+22

"

(2 "

+

H5 $

"

I

# ""

( "#$

2

2 $

2

2

J&

&"

&

&

&

&' "

L6

6"

6$ $

6

6'

22 $

7 " %)

7"" ,<,

" -8

7"" -

M $#E%$

) $-E%%

! $8E%)

(2 33

"

<," "< =+#> *

=&> 3-

< ,<" ##

,

" #$

,

" -#

7" #8

," "

8

," "

=3> 3*

#

,< <,," "

< =+8> #

7 ,"=!> 3%

E ,

$3

< =+> )

< =+> 8

< =+>

< <, #

< =+> " " #3

< =+#>," " -

< =+->

< <, #

< <, $

<

%

7

8%E$E%-

7

< 8#

7

-*

7

" -

7

8

7"

: $-E%%

7

8

$%E)3

N" *

O " #-

" " D $)

" )

" 7<"7 8%

P(- -#

( 3#E)E$#E%$

(= >8)

" " , , )-

(I --

"7""

-$

" 7 ,=+-3!> *-

"9 : " " -3

" *

" -

""67 " #%

R , -

,)-

#)

S *$

, "7 <%3

,"<7 <%3

,Q4+4 $

"

%

$

" ##

"" ," #*

7 ," 8

8*

T"

" 8-

<

"< *3

< -*

U3 -8

-$

# -)

- -*

8 8

) 8

* 8#

! 88

8$

8%E$E%-

' 8*

; $3

V , )-

W7 , , )$

Drawings & Flow ChartsDrawings & Flow ChartsDrawings & Flow ChartsDrawings & Flow Charts

A

!

" !#

B$%&' !

$%' !

$%(' !

C)

$%*' !!

+ !

%&,

'

-. #

-. #

-

- + &#

- - ' &

-

!

/

D &/

'0) 1-

2 -3 /

'0) 1-

2-3

' !

0,1

' &

' &!

&

&!

E +

F 243 -" !

' &&

!

)

' !

G %&,

H &

I

"

) ! #

!

/

/#

&&

&

L-

&#

+ &

&

M '' !

'

2%/*3

'2563 &

//

/!

&/

/

+

+ 2(3

/

,< <,," "

< =+8> #

7 ,"=!> 3%

E ,

$3

< =+> )

< =+> 8

< =+>

< <, #

< =+> " " #3

< =+#>," " -

< =+->

< <, #

< <, $

<

%

7

8%$%-

7

< 8#

7

-*

7

" -

7

8

7"

: $-%%

7

8

O" " D $)

" )

" <@ "

" *-

P(3#)$#%$

(= > 8)

" " , ,

)8

)-

"7"" -$

" *

R , -

, **

S6 , 7 *

<"<

%$

<"<

<7 < , %%

, 7 G, $8

,"

," <!)

," <!2 )

," <2)

,7 "

," <!%*

," <!2 %*

," <2%*

" $

8*

T< " *3

<

,-*

< , 83

97< *)

"78-

U *$

W7 ,< ,<, 3

7 8*

7 6 $3

7 , ,

)%

)$

57 ,Z'7<

Printed in Japan 08/2005 AK

1645 Wallace Drive, Suite 110Carrollton, TX75006

[email protected]

Documents

VRVS HeatPump ServiceManual