Samsung AM KN4DCH Series User manual

Air conditioner
Installation manual
AM777KN4DCH
ŷThank you for purchasing this Samsung air conditioner.
ŷBefore operating this unit, please read this manual carefully and retain it for future
reference.

2English
Contents
Safety Information 3
Installation Procedure 5
Step 1 Checking and preparing accessories
Step 2 Choosing the installation location
Step 3 Optional: Insulating the body of the indoor unit
Step 4 Installing the indoor unit
Step 5 Purging inert gas from the indoor unit
Step 6 Cutting and flaring the pipes
Step 7 Connecting the assembly pipes to the refrigerant pipes
Step 8 Performing the gas leak test
Step 9 Insulating the refrigerant pipes
Step 10 Installing the drain hose and drain pipe
Step 11 Performing the drainage test
Step 12 Connecting the power and communication cables
Step 13 Optional: Extending the power cable
Step 14 Setting the indoor unit addresses and the installation options
Appendix 45
Troubleshooting

3English
Safety Information
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General information
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Installing the unit
WARNING
IMPORTANT: When installing the unit, always remember to
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Safety Information

4
Safety Information
English
Safety Information
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Power supply line, fuse or circuit
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CAUTION
Make sure that you earth the cables.
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Install the circuit breaker.
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Make sure that the condensed water dripping from the
drain hose runs out properly and safely.
Install the power cable and communication cable of
the indoor and outdoor unit at least 1m away from the
electric appliance.
Install the indoor unit away from lighting apparatus
using the ballast.
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Do not install the air conditioner in following places.
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5
Installation Procedure
English
Installation Procedure
Step 1 Checking and preparing
accessories
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XQLW7KHW\SHDQGTXDQWLW\PD\GLIIHUGHSHQGLQJRQWKH
VSHFLILFDWLRQV
Insulation pipe (3 ea) Cable-tie (6 ea)
Drain hose (1 ea) Installation manual (1 ea)
Clamp (1 ea) User manual (1 ea)
Installation template (1 ea) Bushing bracket (1 ea)
Dimension gauge (1 ea) Reducer (1 ea)
Step 2 Choosing the installation
location
Installation location requirements
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RXWOHW
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ZHLJKW
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EH\RQGSXEOLFDFFHVVDQGLVQRWWRXFKDEOHE\XVHUV

6
Installation Procedure
Installation Procedure
English
Indoor unit dimensions
8QLWPPLQFK
Category Square panel Circular panel
Front
1000 (39.40)
358 (14.11)
Ceiling opening dimension
960 (37.80)
[950 (37.40) - 960 (37.80)]
Ceiling opening dimension
960 (37.80)
[950 (37.40) - 960 (37.80)]
116
(4.57)
1050 (41.37)
883 (34.79)
Large
385
(15.17)
166 (6.54)
66 (2.60)
357
(14.07)
404
(15.92)
128 (5.04) 181 (7.13) 190 (7.49) 317 (12.49)
100 (3.94) 153 (6.03) 162 (6.38)
289 (11.39)
138 (5.44)
94 (3.70)
Small
385
(15.17)
166 (6.54)
66 (2.60)
357
(14.07)
404
(15.92)
128 (5.04) 181 (7.13) 190 (7.49) 233 (9.18)
100 (3.94) 153 (6.03) 162 (6.38) 205 (8.08)
138 (5.44)
94 (3.70)
Common
646 (25.45)
646 (25.45)
942 (37.11)
787 (31.01)
80 (3.15)
ø100 (3.94)
H1
+ĺ/DUJH6PDOO 
+ĺ/DUJH6PDOO 
H2
Square panel Circular panel

7
Installation Procedure
English
Model
$0.1'&+
$0.1'&+
$0.1'&+
$0.1'&+
$0.1'&+
$0.1'&+
$0.1'&+
Chassis 6PDOO /DUJH
Net dimension
(W × D × H) mm (in.) [[
[[
[[
[[
[[
[[
Net weight kg (lb)   
Liquid pipe connection mm (in.) º º º
Gas pipe connection mm (in.) º º º
Drain hose connection mm 2'
A
A : 1500 mm or more
A
A
A
'H2' mm
Indoor unit
2500 (98.5) or more
Obstruction
20 (0.79 )
1500 (59.10)
or more
10 (0.39)
8QLWPPLQFK
Model
$0.1'&+
$0.1'&+
$0.1'&+
$0.1'&+
$0.1'&+
$0.1'&+
$0.1'&+
H2   
Spacing requirements
8QLWPPLQFK
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IROORZLQJWDEOH7KHVL]HRIDQLQVSHFWLRQKROHPXVW
EHDWOHDVW[PP[LQ
ŷ $VXVSHQGHGFHLOLQJVWUXFWXUHFDQVXEVWLWXWHIRUWKH
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Category
Inspection hole
Recessed installation Exposed
installation
Integrated suspended
Square panel HD

Circular panel HD
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Refrigerant
pipe
Connection part of the
drain hose
Indoor unit
display
Inspection hole 1050 (41.37)
883 (34.79)
ø1010 to 1020
(ø39.76 to 40.16)
Ceiling opening diameter
ø1010 to 1020
(ø39.76 to 40.16)
Inspection hole
NOTE
7KHFOHDUDQFHEHWZHHQWKHSDQHODQGWKHLQVSHFWLRQKROH
LVWRPPWRLQRQDVLGH

8
Installation Procedure
Installation Procedure
English
CAUTION
ŷ 7KHLQGRRUXQLWPXVWEHLQVWDOOHGDFFRUGLQJWRWKH
VSHFLILHGGLVWDQFHVLQRUGHUWRSHUPLWDFFHVVLELOLW\
IURPHDFKVLGHWRJXDUDQWHHFRUUHFWRSHUDWLRQ
PDLQWHQDQFHDQGUHSDLURIWKHXQLW
7KHFRPSRQHQWVRIWKHLQGRRUXQLWPXVWEHUHDFKDEOH
DQGUHPRYDEOHXQGHUVDIHFRQGLWLRQVIRUSHRSOHDQG
WKHXQLW
ŷ 'RQRWKROGWKHGLVFKDUJHZKLOHFDUU\LQJWKHLQGRRU
XQLWWRDYRLGWKHSRVVLELOLW\RIEUHDNDJH
ŷ <RXPXVWKROGWKHKDQJHUSODWHRQWKHFRUQHUDQG
FDUU\WKHLQGRRUXQLW
Step 3 Optional: Insulating the body
of the indoor unit
,I\RXLQVWDOODFDVVHWWHW\SHLQGRRUXQLWRQWKHFHLOLQJ
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RYHU\RXPXVWDSSO\DQH[WUDPPLQWKLFN
SRO\HWK\OHQHLQVXODWLRQRUDVLPLODUW\SHRILQVXODWLRQWR
WKHERG\RIWKHLQGRRUXQLW
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LQVXODWLQJZRUN
A
,QVXODWHWKHHQGRIWKHSLSHDQGVRPHFXUYHGDUHDE\
XVLQJVHSDUDWHLQVXODWRU
NOTE
ŷ $5HIHUHQFHIRUWKHRXWHUFLUFXPIHUHQFHRIWKHXQLW
:KHQLQVXODWLQJWKHERG\RIWKHLQGRRUXQLWXVH$DV
WKHUHIHUHQFHIRULWVRXWHUFLUFXPIHUHQFH
Indoor unit type and models Dimensions
$OOZD\FDVVHWWH
W\SH6!
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[[
LQ
$0.1'&+
$0.1'&+
$0.1'&+
$0.1'&+
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$OOZD\FDVVHWWH
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[[
LQ
$0.1'&+
$0.1'&+
$0.1'&+
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[LQ
Step 4 Installing the indoor unit
:KHQGHFLGLQJRQWKHORFDWLRQRIWKHDLUFRQGLWLRQHUWKH
IROORZLQJUHVWULFWLRQVPXVWEHWDNHQLQWRDFFRXQW
1 'HWHUPLQHWKHSRVLWLRQVRIWKHSLSHDQGWKHGUDLQ
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NOTE
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)RUWKLVUHDVRQEHIRUHGULOOLQJWKHKROHVEHVXUH
WRPDLQWDLQWKHFRUUHFWGLPHQVLRQVEHWZHHQWKH
PDUNLQJV

9
Installation Procedure
English
2 3HUIRUPWKHIROORZLQJVWHSVWRLQVWDOOLQVSHFWLRQKROHV
LQDFFRUGDQFHZLWKWKHSDQHOW\SH
a )RUWKHUHFHVVHGLQVWDOODWLRQRIWKHVTXDUHSDQHO
ŷ ,QVWDOODQLQVSHFWLRQKROHWRWKHGLUHFWLRQRI
FRQQHFWLRQSDUWVRIWKHUHIULJHUDQWSLSHDQGWKH
GUDLQKRVHSRLQW
Indoor unit
display
Refrigerant pipe
Inspection hole
b )RUUHFHVVHGLQVWDOODWLRQRIWKHFLUFXODUSDQHO
ŷ ,QVWDOOLQVSHFWLRQKROHVWRERWKGLUHFWLRQVRIWKH
FRQQHFWLRQSDUWRIWKHUHIULJHUDQWSLSHDQGWKH
GUDLQKRVHDQGRIWKHLQGRRUXQLWGLVSOD\
SRLQWV
Refrigerant pipe
Indoor unit display
Inspection hole
Inspection hole
3 ,QVHUWEROWDQFKRUVXVHH[LVWLQJFHLOLQJVXSSRUWVRU
FRQVWUXFWDVXLWDEOHVXSSRUWDVVKRZQLQILJXUH
Concrete
Hole in anchor
Hole in plug
Suspension bolt [Ø9.52(3/8”) or M10]
Insert
4 ,QVWDOOWKHVXVSHQVLRQEROWVGHSHQGLQJRQWKHFHLOLQJ
W\SH
Ceiling support
CAUTION
ŷ 0DNHVXUHWKDWWKHFHLOLQJLVVWURQJHQRXJKWRVXSSRUW
WKHZHLJKWRIWKHLQGRRUXQLW%HIRUHKDQJLQJWKH
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EROW
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5 6FUHZHLJKWQXWVDQGZDVKHUVWRWKHVXVSHQVLRQEROWV
PDNLQJVSDFHIRUKDQJLQJWKHLQGRRUXQLW
CAUTION
ŷ <RXPXVWLQVWDOODOORIWKHVXVSHQVLRQURGV
ŷ ,WLVLPSRUWDQWWROHDYHVXIILFLHQWVSDFHLQWKHIDOVH
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6 +DQJWKHLQGRRUXQLWWRWKHVXVSHQVLRQEROWVEHWZHHQ
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SDGVWRSSHUDQGSODFHLWRQWKHEUDFNHWDWWKLVWLPH
1
2
2

10
Installation Procedure
Installation Procedure
English
7 $GMXVWWKHXQLWWRWKHDSSURSULDWHSRVLWLRQWDNLQJLQWR
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ŷ $GMXVWWKHVSDFHEHWZHHQWKHFHLOLQJDQGWKH
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OHYHORIWKHXQLWE\XVLQJDOHYHOOHU
ŷ 5HPRYHWKHSDWWHUQVKHHWDQGLQVWDOOWKHIURQW
SDQHO
Indoor unit
Ceiling
For the recessed installation
of the square panel: 11.5 mm (0.45 in.)
For the recessed installation
of the circular panel: 41.5 mm (1.63 in.)
Gauge of
dimensions
Step 5 Purging inert gas from the
indoor unit
7KHLQGRRUXQLWFRPHVZLWKQLWURJHQJDVLQHUWJDV
FKDUJHGDWWKHIDFWRU\7KHUHIRUHDOOLQHUWJDVPXVWEH
SXUJHGEHIRUHFRQQHFWLQJWKHDVVHPEO\SLSLQJ
Unscrew the pinch pipe at the end of each refrigerant
pipe.
Liquid side
Gas side
Insulator
NOTE
ŷ 7RSUHYHQWGLUWRUIRUHLJQREMHFWVIURPJHWWLQJLQWR
WKHSLSHVGXULQJLQVWDOODWLRQGRQRWUHPRYHWKHSLQFK
SLSHFRPSOHWHO\XQWLO\RXDUHUHDG\WRFRQQHFWWKH
SLSLQJ
Step 6 Cutting and flaring the pipes
1 0DNHVXUHWKDW\RXKDYHWKHUHTXLUHGWRROVDYDLODEOH
SLSHFXWWHUUHDPHUIODULQJWRRODQGSLSHKROGHU
2 ,I\RXZLVKWRVKRUWHQWKHSLSHVFXWWKHPZLWKDSLSH
FXWWHUHQVXULQJWKDWWKHFXWHGJHUHPDLQVDWDr
DQJOHWRWKHVLGHRIWKHSLSH5HIHUWRWKHLOOXVWUDWLRQV
EHORZIRUH[DPSOHVRIHGJHVFXWFRUUHFWO\DQG
LQFRUUHFWO\
Pipe cutter
Pipe Oblique Rough Burr
3 7RSUHYHQWDQ\JDVIURPOHDNLQJRXWUHPRYHDOOEXUUV
DWWKHFXWHGJHRIWKHSLSHXVLQJDUHDPHU
4 6OLGHDIODUHQXWRQWRWKHSLSHDQGPRGLI\WKHIODUH
Pipe Flare
D
A
Flare
R 0.4 to 0.8 mm
(0.016 to 0.032 in.)
D
L
90° ±2°
45° ±2°
Outer Diameter (D) Depth (A) Flare dimension (L)
mm inch mm inch mm inch
    WR WR
    WR WR
    WR WR
    WR WR
    WR WR

11
Installation Procedure
English
5 &KHFNWKDWWKHIODULQJLVFRUUHFWUHIHUULQJWRWKH
LOOXVWUDWLRQVEHORZIRUH[DPSOHVRILQFRUUHFWIODULQJ
Correct Inclined Damaged
Surface
Cracked Uneven
Thickness
Step 7 Connecting the assembly
pipes to the refrigerant pipes
There are two refrigerant pipes of different diameters :
ŷ $VPDOOHURQHIRUWKHOLTXLGUHIULJHUDQW
ŷ $ODUJHURQHIRUWKHJDVUHIULJHUDQW7KHLQVLGHRI
FRSSHUSLSHPXVWEHFOHDQDQGKDVQRGXVW
1 5HPRYHWKHSLQFKSLSHRQWKHSLSHVDQGFRQQHFWWKH
DVVHPEO\SLSHVWRHDFKSLSHWLJKWHQLQJWKHQXWVILUVW
PDQXDOO\DQGWKHQZLWKDWRUTXHZUHQFKDVSDQQHU
DSSO\LQJWKHIROORZLQJWRUTXH
2
3
3
1
Torque
wrench
Flare nut
Spanner
Union
Outer Diameter (D) Torque
mm in. N·m lbf·ft
  WR WR
  WR WR
  WR WR
  WR WR
  WR WR
1ŷP NJIŷFP
NOTE
ŷ ,IWKHSLSHVPXVWEHVKRUWHQHGVHHStep 6 Cutting
and flaring the pipesRQSDJH10
2 %HVXUHWRXVHDQLQVXODWRUWKLFNHQRXJKWRFRYHUWKH
UHIULJHUDQWWXEHWRSURWHFWWKHFRQGHQVDWHZDWHURQ
WKHRXWVLGHRIWKHSLSHIDOOLQJRQWRWKHIORRUDQGWR
LPSURYHWKHHIILFLHQF\RIWKHXQLW
3 &XWRIIDQ\H[FHVVIRDPLQVXODWLRQ
4 0DNHVXUHWKDWWKHUHDUHQRFUDFNVRUZDYHVRQWKH
EHQWDUHD
5 ,WZRXOGEHQHFHVVDU\WRGRXEOHWKHLQVXODWLRQ
WKLFNQHVVPPRUPRUHWRSUHYHQWFRQGHQVDWLRQ
HYHQRQWKHLQVXODWRUZKHQLIWKHLQVWDOOHGDUHDLV
ZDUPDQGKXPLG
6 'RQRWXVHMRLQWVRUH[WHQVLRQVIRUWKHSLSHV
FRQQHFWLQJWKHLQGRRUDQGRXWGRRUXQLWV7KHRQO\
SHUPLWWHGFRQQHFWLRQVDUHWKRVHIRUZKLFKWKHXQLWV
DUHGHVLJQHG

12
Installation Procedure
Installation Procedure
English
CAUTION
ŷ &RQQHFWWKHLQGRRUDQGRXWGRRUXQLWVXVLQJSLSHV
ZLWKIODUHGFRQQHFWLRQVQRWVXSSOLHG)RUWKHOLQHV
XVHLQVXODWHGXQZHOGHGGHJUHDVHGDQGGHR[LGL]HG
FRSSHUSLSH&X'+3W\SHWR,62RU81,(1
VXLWDEOHIRURSHUDWLQJSUHVVXUHVRIDWOHDVW
03DSVLDQGIRUDEXUVWSUHVVXUHRIDW
OHDVW03DSVL&RSSHUSLSHIRUK\GUR
VDQLWDU\DSSOLFDWLRQVLVFRPSOHWHO\XQVXLWDEOH
ŷ )RUVL]LQJDQGOLPLWVKHLJKWGLIIHUHQFHOLQHOHQJWK
PD[EHQGVUHIULJHUDQWFKDUJHHWFVHHWKHRXWGRRU
XQLWLQVWDOODWLRQPDQXDO
ŷ $OOUHIULJHUDQWFRQQHFWLRQPXVWEHDFFHVVLEOHLQRUGHU
WRSHUPLWHLWKHUXQLWPDLQWHQDQFHRUUHPRYLQJLW
FRPSOHWHO\
ŷ ,IWKHSLSHVUHTXLUHEUD]LQJPDNHVXUHWKDWR[\JHQ
IUHHQLWURJHQ2)1LVIORZLQJWKURXJKWKHV\VWHP
ŷ 1LWURJHQEORZLQJSUHVVXUHUDQJHLVWR03D
WRSVL
Step 8 Performing the gas leak test
7RLGHQWLI\SRWHQWLDOJDVOHDNVRQWKHLQGRRUXQLWLQVSHFW
WKHFRQQHFWLRQDUHDRIHDFKUHIULJHUDQWSLSHXVLQJDOHDN
GHWHFWRUIRU5$
%HIRUHUHFUHDWLQJWKHYDFXXPDQGUHFLUFXODWLQJWKH
UHIULJHUDQWJDVSUHVVXUL]HWKHZKROHV\VWHPZLWK
QLWURJHQXVLQJDF\OLQGHUZLWKDSUHVVXUHUHGXFHUDWD
SUHVVXUHDERYH03D>SVLJJDXJH@LQRUGHUWR
LPPHGLDWHO\GHWHFWOHDNVRQWKHUHIULJHUDQWILWWLQJV
0DGHYDFXXPIRUPLQXWHVDQGSUHVVXUL]LQJV\VWHP
ZLWKQLWURJHQ
Liquid side
Gas side
Insulator
Step 9 Insulating the refrigerant
pipes
2QFH\RXKDYHFKHFNHGWKDWWKHUHDUHQROHDNVLQWKH
V\VWHP\RXFDQLQVXODWHWKHSLSLQJDQGKRVH
1 7RDYRLGFRQGHQVDWLRQSUREOHPVSODFH$FU\ORQLWULOH
%XWDGLHQ5XEEHUVHSDUDWHO\DURXQGHDFKUHIULJHUDQW
SLSH
No gap
NBR
NOTE
ŷ $OZD\VPDNHWKHVHDPRISLSHVIDFHXSZDUGV
2 :LQGLQVXODWLQJWDSHDURXQGWKHSLSHVDQGGUDLQKRVH
DYRLGLQJFRPSUHVVLQJWKHLQVXODWLRQWRRPXFK
3 )LQLVKZUDSSLQJLQVXODWLQJWDSHDURXQGWKHUHVWRIWKH
SLSHVOHDGLQJWRWKHRXWGRRUXQLW
4 7KHSLSHVDQGHOHFWULFDOFDEOHVFRQQHFWLQJWKHLQGRRU
XQLWZLWKWKHRXWGRRUXQLWPXVWEHIL[HGWRWKHZDOO
ZLWKVXLWDEOHGXFWV
Indoor unit
Insulation cover pipe
Insulation pipe
Be sure to overlap
the insulation.

13
Installation Procedure
English
CAUTION
ŷ ,QVWDOOWKHLQVXODWLRQQRWWRJHWZLGHUDQGXVHWKH
DGKHVLYHVRQWKHFRQQHFWLRQSDUWRILWWRSUHYHQW
PRLVWXUHIURPHQWHULQJ
ŷ :LQGWKHUHIULJHUDQWSLSHZLWKLQVXODWLRQWDSHLILWLV
H[SRVHGWRRXWVLGHVXQOLJKW
ŷ ,QVWDOOWKHUHIULJHUDQWSLSHUHVSHFWLQJWKDWWKH
LQVXODWLRQGRHVQRWJHWWKLQQHURQWKHEHQWSDUWRU
KDQJHURISLSH
ŷ $GGWKHDGGLWLRQDOLQVXODWLRQLIWKHLQVXODWLRQSODWH
JHWVWKLQQHU
Refrigerant pipe insulation
Hanger
Additional
insulation
a
a x 3
ŷ 0XVWILWWLJKWO\DJDLQVWERG\ZLWKRXWDQ\JDS
ŷ $OOUHIULJHUDQWFRQQHFWLRQPXVWEHDFFHVVLEOHLQRUGHU
WRSHUPLWHLWKHUXQLWPDLQWHQDQFHRUUHPRYDO
5 6HOHFWWKHLQVXODWLRQRIWKHUHIULJHUDQWSLSH
ŷ ,QVXODWHWKHJDVVLGHDQGOLTXLGVLGHSLSHQRWLQJ
WKHLQVXODWLRQWKLFNQHVVWKDWPXVWGLIIHUDFFRUGLQJ
WRWKHSLSHVL]H
ŷ 6WDQGDUG/HVVWKDQDQLQGRRUWHPSHUDWXUHRI
r&r)ZLWKKXPLGLW\DW,ILQVWDOOLQJ
LQDKLJKKXPLGLW\HQYLURQPHQWXVHRQHJUDGH
WKLFNHULQVXODWRUE\UHIHUULQJWRWKHWDEOHEHORZ
,ILQVWDOOLQJLQDQXQIDYRXUDEOHHQYLURQPHQWXVH
WKLFNHURQH
ŷ 7KHKHDWUHVLVWDQFHWHPSHUDWXUHRIWKHLQVXODWRU
PXVWEHPRUHWKDQr&r)
Pipe
Pipe size
Insulation type (heating/cooling)
Remarks
General
[30°C(86°F), 85%]
High humidity
[30°C(86°F), 85%]
EPDM, NBR
mm inch mm inch mm inch
/LTXLG
SLSH
WR WR    
+HDWLQJ
UHVLVWLQJ
WHPSHUDWXUH
RYHUr&
r)
WR WR    
*DVSLSH
     
WR WR    
WR WR    
 2   

14
Installation Procedure
Installation Procedure
English
ŷ :KHQLQVWDOOLQJLQVXODWLRQLQWKHSODFHVDQG
FRQGLWLRQVEHORZXVHWKHVDPHLQVXODWLRQWKDWLV
XVHGIRUKLJKKXPLGLW\FRQGLWLRQV
<Geological condition>
+LJKKXPLGLW\ORFDWLRQVVXFKDVVKRUHOLQHVKRW
VSULQJVODNHRUULYHUVLGHVDQGULGJHVZKHQSDUWRI
WKHEXLOGLQJLVFRYHUHGE\HDUWKDQGVDQG
<Operation purpose condition>
5HVWDXUDQWFHLOLQJVDXQDVZLPPLQJSRROHWF
<Building construction condition>
&HLOLQJVIUHTXHQWO\H[SRVHGWRPRLVWXUHDQGFRROLQJ
DUHQRWFRYHUHG)RUH[DPSOHSLSHVLQVWDOOHGDWD
FRUULGRURIDGRUPLWRU\DQGVWXGLRRUQHDUDQH[LW
WKDWRSHQVDQGFORVHVIUHTXHQWO\
3ODFHVZKHUHWKHSLSHVDUHLQVWDOOHGWKDWDUHKLJKO\
KXPLGGXHWRDODFNRIYHQWLODWLRQ
Step 10 Installing the drain hose and
drain pipe
1 3XVKWKHVXSSOLHGGUDLQKRVHDVIDUDVSRVVLEOHRYHU
WKHGUDLQVRFNHW
2 7LJKWHQWKHPHWDOFODPSDVVKRZQLQWKHSLFWXUH
3 :UDSWKHVXSSOLHGODUJHVHDOLQJSDGRYHUWKHPHWDO
FODPSDQGGUDLQKRVHWRLQVXODWHDQGIL[LWZLWK
FODPSV
4 ,QVXODWHWKHFRPSOHWHGUDLQSLSLQJLQVLGHWKHEXLOGLQJ
ILHOGVXSSO\
,IWKHGUDLQKRVHFDQQRWEHVXIILFLHQWO\VHWRQDVORSH
ILWWKHKRVHZLWKGUDLQUDLVLQJSLSLQJILHOGVXSSO\
5 3XVKWKHGUDLQKRVHXSWRLQVXODWLRQZKHQFRQQHFWLQJ
WKHGUDLQKRVHWRGUDLQVRFNHW
A-A’
Steel ring of drain hose
Joint of drain hose
Drain hose
Drain hose
Fix with Cable-Tie
Wrap thermal sleeve hose
Indoor unit
Reducer
As shown in the gure,
tighten clamp of the
drain hose.
CAUTION
Check that the indoor unit is level with the ceiling by
using the leveller.
ŷ ,QVWDOODLUYHQWLODWLRQWRGUDLQFRQGHQVDWLRQVPRRWKO\
Air ventilation
Ceiling
ŷ ,ILWLVQHFHVVDU\WRLQFUHDVHWKHKHLJKWRIWKHGUDLQ
SLSHLQVWDOOWKHGUDLQSLSHVWUDLJKWZLWKLQPP
LQIURPWKHGUDLQKRVHSRUW,ILWLVUDLVHGKLJKHU
WKDQPPLQWKHUHPD\EHZDWHUOHDNV
Band joint
Drain hose
Ceiling
300 mm
(12 in.) or less 20 mm (3/4 in.)
or more
550 mm (22 in.)
or less

15
Installation Procedure
English
ŷ 'RQRWJLYHWKHKRVHDQXSZDUGJUDGLHQWEH\RQG
WKHFRQQHFWLRQSRUW7KLVZLOOFDXVHZDWHUWRIORZ
EDFNZDUGVZKHQWKHXQLWLVVWRSSHGUHVXOWLQJLQ
ZDWHUOHDNV
Under gradient
Ceiling
ŷ 'RQRWDSSO\IRUFHWRWKHSLSLQJRQWKHXQLWVLGH
ZKHQFRQQHFWLQJWKHGUDLQKRVH7KHKRVHVKRXOGQRW
EHDOORZHGWRKDQJORRVHIURPLWVFRQQHFWLRQWRWKH
XQLW)DVWHQWKHKRVHWRDZDOOIUDPHRURWKHUVXSSRUW
DVFORVHWRWKHXQLWDVSRVVLEOH
Support pieces
1/100 or more
Ceiling
1 to 1.5 m (3 ft 3 in.
to 4 ft 11 in.)
ŷ ,QVWDOOKRUL]RQWDOO\
Indoor unit
Be horizontal
Flexible hose
ŷ 0D[DOORZDEOHDL[VJDS
Indoor unit
Max. 20 mm (3/4 in.)
ŷ 0D[DOORZDEOHEHQGLQJDQJOH
Indoor unit
Max. 30˚
NOTE
ŷ ,IDFRQFHQWUDWHGGUDLQSLSHLVLQVWDOOHGUHIHUWRWKH
ILJXUHEHORZ
Centralized horizontal drainpipe
(more than 1/100 slope)
Main drainpipe
Full thread bolt hanger 1000 to 1500 mm (39.37 to 59.06 in.)
300 to 500 mm
(11.81 to 19.67 in.)
200 mm (7.87 in.)
or more
Individual air
vent
Main air vent (must
be installed)
ŷ ,IRUPRUHXQLWVDUHLQVWDOOHGLQVWDOOWKHPDLQDLU
YHQWDWWKHIURQWRIWKHIDUWKHVWLQGRRUXQLWIURPWKH
PDLQGUDLQSLSH
ŷ 7RSUHYHQWZDWHUIURPIORZLQJEDFNWRLQGRRUXQLWV
LQVWDOODQLQGLYLGXDODLUYHQWDWWKHWRSRIHDFKLQGRRU
XQLW
–7KHDLUYHQWVVKRXOGEH7RUVKDSHGWRSUHYHQW
GXVWRUIRUHLJQVXEVWDQFHVIURPHQWHULQJ
–<RXPD\QRWQHHGWRLQVWDOODLUYHQWLIWKH
KRUL]RQWDOGUDLQSLSHLVLQSURSHUVORSH

16
Installation Procedure
Installation Procedure
English
Step 11 Performing the drainage test
1 'RDOHDNWHVWDWWKHFRQQHFWLRQSDUWRIWKHIOH[LEOH
KRVHDQGWKHGUDLQSLSH
a &RQQHFWDJHQHUDOKRVHWRWKHFRQQHFWLRQSDUWRI
WKHIOH[LEOHKRVHRIWKHLQGRRUXQLWDQGSRXULQ
VRPHZDWHU
Hose
Flexible hose
Water leakage
check part
b $IWHUSRXULQJVRPHZDWHUUHDVVHPEOHWKHUXEEHU
FDSRQWKHFRQQHFWLRQSDUWRIDIOH[LEOHKRVHRI
WKHLQGRRUXQLWDQGILUPO\WLJKWHQLWZLWKDEDQG
WRSUHYHQWOHDNDJH
c &KHFNWKHOHDNWHVWDWWKHSDUWZKHUHWKHDGKHVLYH
IRUWKHIOH[LEOHKRVHDQGWKHGUDLQSLSHLVXVHG
CAUTION
ŷ 7KHOHDNWHVWPXVWEHSHUIRUPHGIRUDWOHDVWKRXUV
2 &KHFNWKHFRQGHQVHGZDWHUGUDLQDJH
a 3RXUDERXWOLWHUVJDORIZDWHULQWRWKH
LQGRRUXQLWGUDLQSDQDVVKRZQLQWKHSLFWXUH
b :KHQWKHHOHFWULFFDEOHFRQQHFWLRQLVFRPSOHWHG
ŷ 7XUQRQWKHLQGRRUXQLWDQGRXWGRRUXQLW
ŷ 2SHUDWHLQWKH&RROPRGH
CAUTION
ŷ 2QO\LQWKH&RROPRGH\RXFDQFKHFNWKHFRUUHFW
RSHUDWLRQRIWKHGUDLQSXPS
:KHQWKHHOHFWULFFDEOHFRQQHFWLRQKDVQRWEHHQ
FRPSOHWHG
ŷ 5HPRYHWKHFRQWUROER[FRYHURIWKHLQGRRUXQLW
ŷ &RQQHFWWKHSRZHUVXSSO\WR9+]WR
WKH/DQG1WHUPLQDOV
ŷ 5HDVVHPEOHWKHFRQWUROER[FRYHUDQGWXUQRQWKH
LQGRRUXQLW
CAUTION
ŷ :KHQWKHIORDWVZLWFKLVQRWGHWHFWHGGXHWR
LQVXIILFLHQWZDWHURQWKHGUDLQSDQWKHGUDLQ
SXPSZLOOQRWZRUN
ŷ ,IWKHSRZHUVXSSO\LVGLUHFWO\FRQQHFWHGWRWKH
/DQG1WHUPLQDOVFRPPXQLFDWLRQHUURUPHVVDJH
PLJKWDSSHDU
ŷ $IWHUFRPSOHWLQJWKHGUDLQDJHFKHFNWXUQWKH
XQLWRIIDQGGLVFRQQHFWWKHSRZHUVXSSO\
ŷ 5HDVVHPEOHWKHFRQWUROER[FRYHU
c &KHFNZKHWKHUWKHGUDLQSXPSZRUNVFRUUHFWO\
d &KHFNZKHWKHUWKHGUDLQDJHLVSHUIRUPLQJ
FRUUHFWO\DWWKHHQGRIWKHGUDLQSLSH
e &KHFNIRUOHDNDJHDWWKHGUDLQSLSHDQGGUDLQSLSH
FRQQHFWLRQSDUW
f :KHQOHDNDJHRFFXUVFKHFNZKHWKHUWKHLQGRRU
XQLWLVOHYHODQGFKHFNWKHGUDLQKRVHFRQQHFWLRQ
SDUWGUDLQSLSHFRQQHFWLRQSDUWDQGGUDLQSXPS
FRQQHFWLRQ
g :KHQWKHGUDLQDJHFKHFNLVFRPSOHWHGDQGWKH
FRQGHQVHGZDWHUUHPDLQVRQWKHGUDLQSDQ
UHPRYHWKHZDWHU

17
Installation Procedure
English
Bushing bracket installation
,)WKHFRQGXOWWXEHLVXVHGEUDFNHWPXVWEHLQVWDOOHGDVVKRZQLQWKHSLFWXUHWRIL[WKHFRQGXLWWXEH
Indoor unit
< 1 conduit tube > < 2 conduit tube >
Push
NOTE
ŷ 3OHDVHIROORZQDWLRQDODQGORFDOHOHFWULFDOFRGHV$GGLWLRQDOHOHFWULFDOFRQQHFWLRQFRPSRQHQWVPD\EHUHTXLUHG

18
Installation Procedure
Installation Procedure
English
Step 12 Connecting the power and
communication cables
Power and communication cable connection
F1 F2
L(L1) N(L2)
For connecting the power and
communication cables
Indoor unit
ŷ %HIRUHZLULQJZRUN\RXPXVWWXUQRIIDOOSRZHUVRXUFH
ŷ &RQQHFWWKHSRZHUDQGFRPPXQLFDWLRQFDEOHDPRQJ
WKHXQLWVZLWKLQPD[LPXPOHQJWKWRVHWWKHYROWDJH
GURSXQGHU
ŷ 7KHDX[LOLDU\FLUFXLWEUHDNHU(/&%0&&%(/%VKRXOG
EHFRQVLGHUHGPRUHFDSDFLW\LIPDQ\LQGRRUXQLWVDUH
FRQQHFWHGIURPRQHEUHDNHU
ŷ &RQQHFW))IRUFRPPXQLFDWLRQWRWKH
FRPPXQLFDWLRQFDEOHRIWKHZLUHGUHPRWHFRQWURO
ŷ 7LJKWHQWKHHOHFWULFZLUHVZLWKDSURSHUWRROZLWKLQWKH
WRUTXHOLPLWWRFRQQHFWDQGIL[WKHPILUPO\DQGWKHQ
RUJDQL]HWKHZLUHVWRSUHYHQWRXWVLGHSUHVVXUHEHLQJ
H[HUWHGRQWKHFRYHUVDQGRWKHUSDUWV)DLOXUHWRGRVR
PD\UHVXOWLQRYHUKHDWLQJHOHFWULFVKRFNDQGILUH
Tightening torque (lbf.ft)
0 WR
0 WR
ŷ 7RSURWHFWWKHSURGXFWIURPZDWHUDQGSRVVLEOHVKRFN
\RXVKRXOGNHHSWKHSRZHUDQGWKHFRPPXQLFDWLRQ
FDEOHVRIWKHLQGRRUDQGRXWGRRUXQLWVLQWKHLURQSLSH
ŷ &RQQHFWWKHSRZHUFDEOHWRWKHDX[LOLDU\FLUFXLW
EUHDNHU(/&%0&&%(/%
ŷ .HHSGLVWDQFHVRIPPRUPRUHEHWZHHQSRZHUFDEOH
DQGFRPPXQLFDWLRQFDEOHV
ŷ 3RZHUVXSSO\FRUGVRISDUWVRIDSSOLDQFHVIRURXWGRRUXVH
VKDOOQRWEHOLJKWHUWKDQSRO\FKORURSUHQHVKHDWKHGIOH[LEOH
FRUG&RGHGHVLJQDWLRQ,(&,(&&(1(/(&
+51)RU,(&,(&&(1(/(&+51)
ŷ 6FUHZVRQWHUPLQDOEORFNPXVWQRWEHXQVFUHZHGZLWKWKH
WRUTXHOHVVWKDQNJIŷFP
ŷ :KHQLQVWDOOLQJWKHLQGRRUXQLWLQDFRPSXWHUURRPXVH
WKHGRXEOHVKLHOGHGWDSHDOXPLQXPSRO\HVWHUEUDLG
FRSSHUFDEOHRI)52++5W\SH
F1 F2
1(L) 2(N)
F1 F2 F1 F2
F3 F4
1(L) 2(N) 1(L) 2(N)
MCCB
+ELB ELCB
or
Wired remote
control
Outdoor
unit
Indoor unit 1 Indoor unit 2 Indoor unit 3

19
Installation Procedure
English
Selecting the crimping terminal lug
1 6HOHFWWKHFULPSLQJWHUPLQDOOXJEDVHGRQWKHQRUPLQDOGLPHQVLRQRIWKHSRZHUFDEOH
2 &RYHUWKHFRQQHFWLRQSDUWRIWKHSRZHUFDEOHDQGFULPSLQJWHUPLQDOOXJWRLQVXODWHLW
Silver solder
FE
L
D
d1
B
d2
t
B
2
R
1RUPLQDOGLPHQVLRQVIRUFDEOH>PP
2
,QFK
2
@   
1RUPLQDOGLPHQVLRQVIRUVFUHZ>PP,QFK@     
B
6WDQGDUGGLPHQVLRQ>PP,QFK@ 






 
$OORZDQFH>PP,QFK@ ss ss ss
D
6WDQGDUGGLPHQGLRQ>PP,QFK@   
$OORZDQFH>PP,QFK@ 
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
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20
Installation Procedure
Installation Procedure
English
Specifications of the terminal blocks
8QLWPPLQFK
AΧͱиʪθࡠđߥϑʀθʪи AͱЇʀɇϩͱࡠđߤࢋߦϑʀθʪи
ߢߢ࣍ߨࢥߢߧ࣎
ߢߤ࣍ߢࢥߣ࣎
ߨࢋ ߦ  ࣍ ߦࢥ ߢ ߧ ࣎ ߪࢋߡ࣍ߤࢥߩ࣎
ߢߤࢋߩ࣍ߪࢥߢߧ࣎
ߢߩ࣍ߢߢࢥߢߧ࣎
Power supply
(single phase) MCCB ELB
WR9+]
0LQ9
0D[9
XA ;$P$
V
Power cable Earth cable Communication
cable
PPt
LQtRU
PRUH
PPt
LQt
WR
PPt
WRLQt
'HFLGHWKHSRZHUFDEOHVSHFLILFDWLRQDQGPD[LPXP
OHQJWKE\IRUPXOD2
1 'HFLGHWKHFDSDFLW\RI(/%DQG0&&%E\EHORZ
IRUPXOD
The capacity of ELB, MCCB X[A] = 1.25 X 1.1 X ȈAi
NOTE
ŷ ;7KHFDSDFLW\RI(/%0&&%
ŷ Ȉ$L6XPRIUDWLQJFXUUHQWVRIHDFKLQGRRUXQLW
Rated currents
Model Rating current(A)
$0.1'&+ 
$0.1'&+ 
$0.1'&+ 
$0.1'&+ 
$0.1'&+ 
$0.1'&+ 
$0.1'&+ 
2 'HFLGHWKHSRZHUFDEOHVSHFLILFDWLRQDQGPD[LPXP
OHQJWKZLWKLQYROWDJHGURSDPRQJLQGRRUXQLWV
n
Coef×35.6×Lk
× ik) < 10% of input voltage[V]
∑ (
1000×Ak
k=1
NOTE
ŷ &RHI
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FDEOHVSHFLILFDWLRQ>PP
2
@
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Example of Installation
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7RWDOLQGRRUXQLWVZHUHLQVWDOOHG
or
10 [A]
0[m] (0 ft)
ELCB
MCCB+ELB
10[m] (32ft 10 in.)
Indoor unit 1 Indoor unit 2 Indoor unit 10
20[m] (65ft 7 in.) 100[m] (328 ft)
9 [A] 1 [A]
ŷ $SSO\IROORZLQJHTXDWLRQ
n
Coef×35.6×L k ×i k
∑ ( ) < 10% of input voltage[V]
=1
1000×A k