Trane MITSUBISHI ELECTRIC NTXWMT09A111A Series User manual

1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
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■Do not install the unit by yourself (user).
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■Follow the instructions detailed in the installation manual.
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■When installing the unit, use appropriate protective equipment and tools for
safety.
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■Install the unit securely in a place that can bear the weight of the unit.
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■ Perform electrical work according to the installation manual and be sure to use
an exclusive circuit. Do not connect other electrical appliances to the circuit.
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■Ground the unit correctly.
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■ Do not damage the wires.
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■ Be sure to shut off the main power when setting up the indoor P.C. board or
wiring.
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■Use the speci¿ed wires to securely connect the indoor and outdoor units. At-
tach the wires ¿rmly to avoid applying stress to the terminal block.
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■ Do not install the unit in a place where Àammable gas may leak.
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■Do not use intermediate connection of the power cord or the extension cord.
Do not connect many devices to one AC outlet.
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■ Use the parts provided or speci¿ed parts for the installation work.
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■ When plugging the power supply plug into the outlet, make sure that there is
no dust, blockage, or loose parts both in the outlet and on the plug. Verify that
the power supply plug is completely in the outlet.
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■ Securely attach the electrical cover to the indoor unit and the service panel to
the outdoor unit.
If the electrical cover of the indoor unit and/or the service panel of the outdoor unit are
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DQHOHFWULFVKRFN
■ When installing, relocating, or servicing the unit, make sure that no substance
other than the speci¿ed refrigerant (R410A) enters the refrigerant circuit.
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SURGXFWVDIHW\
■ Do not discharge the refrigerant into the atmosphere. Check that the refriger-
ant gas does not leak after installation has been completed. If refrigerant leaks
during installation, ventilate the room.
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■ Use appropriate tools and piping materials for installation.
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■ When pumping down the refrigerant, stop the compressor before disconnecting
the refrigerant pipes.
If the refrigerant pipes are disconnected while the compressor is running and the
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■ When installing the unit, securely connect the refrigerant pipes before starting
the compressor.
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VWRSYDOYHLVRSHQDLUFRXOGEHGUDZQLQDQGWKHSUHVVXUHLQWKHUHIULJHUDWLRQF\FOH
FRXOGEHFRPHDEQRUPDOO\KLJKFDXVLQJWKHSLSHVWREXUVW
■ Fasten a Àare nut with a torque wrench as speci¿ed in this manual.
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■ Install the unit according to national wiring regulations.
■Depending on the installation area, install a Ground Fault Interrupt (GFI) circuit
breaker.
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could occur.
■Perform the drainage/piping work securely according to the installation manual.
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damage household items.
■Do not touch the air inlet or the aluminum ¿ns of the outdoor unit.
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■Do not install the outdoor unit where small animals may live.
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CAUTION &RXOGOHDGWRVHULRXVLQMXU\ZKHQRSHUDWHGLQFRUUHFWO\
WARNING &RXOGOHDGWRGHDWKRUVHULRXVLQMXU\
1. BEFORE INSTALLATION
-*<+
ENGLISH
63/,77<3($,5&21',7,21(56
INSTALLATION MANUAL
:KHQLQVWDOOLQJPXOWLXQLWVUHIHUWRWKHLQVWDOODWLRQ
manual of the multi unit for outdoor unit installation.
NTXWMT09A111A✱
NTXWMT12A111A✱
Required Tools for Installation
Phillips screwdriver
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6FDOH
8WLOLW\NQLIHRUVFLVVRUV
3 in. (75 mm) hole saw
7RUTXHZUHQFK
Wrench (or spanner)
5/32 in. (4 mm) hexagonal wrench
)ODUHWRROIRU5$
*DXJHPDQLIROGIRU5$
9DFXXPSXPSIRU5$
&KDUJHKRVHIRU5$
Pipe cutter with reamer

Electrical speci¿cations
02'(/ NTXWMT09A111A✱NTXWMT12A111A✱
,1'22581,7
3RZHUVXSSO\93+$6(+] 
0LQ&LUFXLW$PSDFLW\ $ 1.4
)DQPRWRU)/$ $ 
287'22581,7
3RZHUVXSSO\93+$6(+] 
0D[)XVHVL]HWLPHGHOD\$ 15 
0LQ&LUFXLW$PSDFLW\ $ 12 14
)DQPRWRU)/$ $  
Compressor 5/$ $ 8.8 
/5$ $  
Control voltage ,QGRRUXQLW5HPRWHFRQWUROOHU:LUHOHVV
,QGRRUXQLW2XWGRRUXQLW'&93RODU
Pipe 2XWVLGHGLDPHWHU 0LQLPXPZDOO
WKLFNQHVV
Insulation
WKLFNQHVV Insulation material
inch (mm)
)RUOLTXLG 1/4 (6.35)  5/16 (8) Heat resistant
IRDPSODVWLF
6SHFL¿FJUDYLW\
For gas   5/16 (8)
1/2 (12.7)  5/16 (8)
/LPLWV
Pipe length IWPPD[
Height difference IWPPD[
1RRIEHQGV PD[
Pipe length
Up to 25 ft. (7.5 m) 1RDGGLWLRQDOFKDUJHLVUHTXLUHG
Exceeding 25 ft. (7.5 m) $GGLWLRQDOFKDUJHLVUHTXLUHG
5HIHUWRWKHWDEOHEHORZ
5HIULJHUDQWWREH
added R]HDFKIWJP
1-3. SPECIFICATIONS
1-3-1. POWER SUPPLY AND INDOOR/OUTDOOR
WIRE CONNECTION
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 6HFXUHO\WLJKWHQVFUHZV
Connecting wires and the ground wire
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0LQ$:*
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 8VHFRSSHUFRQGXFWRUVRQO\
* Follow local electrical codes.
Power supply cable and ground wire
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 8VHFRSSHUFRQGXFWRUVRQO\
* Follow local electrical codes.
Note:
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LQJRQORFDOFRGHDGLVFRQQHFWVZLWFKQHHGVWREHLQVWDOOHGWRD
SRZHUVXSSO\FLUFXLW
 5HIULJHUDQWDGMXVWPHQW,ISLSHOHQJWKH[FHHGVIWP
DGGLWLRQDOUHIULJHUDQW5$FKDUJHLVUHTXLUHG
7KHRXWGRRUXQLWLVFKDUJHGZLWKUHIULJHUDQWIRUSLSHOHQJWKXS
WRIW>P@
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sides.
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the pipe.
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units.
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1-3-2. REFRIGERANT PIPES
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CAUTION
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ULJKW([FHVVLYHLQVXODWLRQPD\FDXVHLQFRUUHFWLQVWDOODWLRQRI
WKHLQGRRUXQLWDQGWRROLWWOHLQVXODWLRQPD\FDXVHFRQGHQVDWH
to form.
1-2. SELECTING THE INSTALLATION LOCATION
INDOOR UNIT
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 2QDULJLGZDOOWRUHGXFHWKHSRVVLELOLW\RIYLEUDWLRQ
 :KHUHLWLVQRWH[SRVHGWRGLUHFWVXQOLJKW'RQRWH[SRVH
WRGLUHFWVXQOLJKWDOVRGXULQJWKHSHULRGIROORZLQJXQSDFN-
LQJWREHIRUHXVH
 :KHUHLWFDQEHHDVLO\GUDLQHG
 $WDGLVWDQFHIWPRUPRUHDZD\IURPD79DQG
UDGLR2SHUDWLRQRIWKHDLUFRQGLWLRQHUPD\LQWHUIHUHZLWK
UDGLRRU79UHFHSWLRQ$QDPSOL¿HUPD\EHUHTXLUHGIRU
the affected device.
 ,QDSODFHDVIDUDZD\DVSRVVLEOHIURPÀXRUHVFHQWDQG
LQFDQGHVFHQWOLJKWV,QRUGHUWRPDNHWKHLQIUDUHGUHPRWH
FRQWURO RSHUDWH WKH DLU FRQGLWLRQHU QRUPDOO\ 7KH KHDW
IURPWKHOLJKWVPD\FDXVHGHIRUPDWLRQRUWKHXOWUDYLROHW
PD\FDXVHGHWHULRUDWLRQ

:KHUHWKHDLU¿OWHUFDQEHUHPRYHGDQGUHSODFHGHDVLO\
 :KHUHLWLVDZD\IURPWKHRWKHUKHDWRUVWHDPVRXUFH
Note:
Install the indoor unit high on the wall where air can
GLVWULEXWHRYHUWKHHQWLUHURRP
REMOTE CONTROLLER
 :KHUHLWLVFRQYHQLHQWWRRSHUDWHDQGHDVLO\YLVLEOH
 :KHUHFKLOGUHQFDQQRWHDVLO\WRXFKLW
 6HOHFWDSRVLWLRQDERXWIWPDERYHWKHÀRRU
&KHFNWKDWVLJQDOVIURPWKHUHPRWHFRQWUROOHUIURP
WKDWSRVLWLRQDUHUHFHLYHGE\WKHLQGRRUXQLWµEHHS¶
RUµEHHSEHHS¶UHFHLYLQJWRQHVRXQGV7KHQDWWDFK
remote controller holder to a pillar or wall and install
wireless remote controller.
Note:
,QURRPVZKHUHLQYHUWHUW\SHÀXRUHVFHQWODPSVDUHXVHG
WKHVLJQDOIURPWKHZLUHOHVVUHPRWHFRQWUROOHUPD\QRWEH
received.
OUTDOOR UNIT
 :KHUHLW LV QRW RYHUO\ H[SRVHG WRVWURQJ ZLQGV ,I WKH
RXWGRRUXQLWLVH[SRVHGWRDZLQGGXULQJGHIURVWLQJWKH
GHIURVWLQJWLPHZLOOEHORQJHU
 :KHUHDLUÀRZLVJRRGDQGGXVWOHVV
 :KHUHQHLJKERXUVDUHQRWDQQR\HGE\RSHUDWLRQVRXQG
or hot (or cool) air.
 :KHUHULJLGZDOO RUVXSSRUWLVDYDLODEOH WRSUHYHQWWKH
LQFUHDVHRIRSHUDWLRQVRXQGRUYLEUDWLRQ
 :KHUHWKHUHLVQRULVNRIFRPEXVWLEOHJDVOHDNDJH
 ,ILQVWDOOLQJWKHXQLWLQDORFDWLRQKLJKDERYHWKHJURXQG
EHVXUHWRVHFXUHWKHXQLWOHJV
 :KHUHLWLVDWOHDVWIWPDZD\IURPWKHDQWHQQD
RI79VHWRUUDGLR2SHUDWLRQRIWKHDLUFRQGLWLRQHUPD\
LQWHUIHUHZLWKUDGLRRU79UHFHSWLRQLQDUHDVZKHUHUHFHS-
WLRQLVZHDN$QDPSOL¿HUPD\EHUHTXLUHGIRUWKHDIIHFWHG
device.
 ,QVWDOOWKHXQLWKRUL]RQWDOO\
 3OHDVHLQVWDOOLWLQDQDUHDQRWDIIHFWHGE\ VQRZIDOO RU
EORZLQJVQRZ,QDUHDVZLWKKHDY\VQRZSOHDVHLQVWDOO
DFDQRS\DSHGHVWDODQGRUEDIÀHERDUGV
Note:
 ,WLVDGYLVDEOHWRPDNHDSLSLQJORRSQHDURXWGRRUXQLW
VRDVWRUHGXFHYLEUDWLRQ
 )RU LQFUHDVHG HI¿FLHQF\ LQVWDOO WKH RXWGRRU XQLW LQ D
location where continuous direct sunlight or excessive
ZDWHUFDQEHDYRLGHGDVPXFKDVSRVVLEOH
Note:
When operating the air conditioner in low outside tem-
SHUDWXUHEHVXUHWRIROORZWKHLQVWUXFWLRQVGHVFULEHG
EHORZ
 1HYHULQVWDOOWKHRXWGRRUXQLWLQDSODFHZKHUHLWVDLU
LQOHWRXWOHWVLGHPD\EHH[SRVHGGLUHFWO\WRZLQG
 7RSUHYHQWH[SRVXUHWRZLQGLQVWDOOWKHRXWGRRUXQLW
with its air inlet side facing the wall and
DEDIÀHERDUG
on the air outlet side.
Avoid the following places for installation where air
FRQGLWLRQHUWURXEOHLVOLDEOHWRRFFXU
 :KHUHÀDPPDEOHJDVFRXOGOHDN
 :KHUHWKHUHLVDQH[FHVVLYHDPRXQWRIPDFKLQHRLO
in the air.
 :KHUHRLOLVVSODVKHGRUZKHUHWKHDUHDLV¿OOHGZLWK
RLO\VPRNHVXFKDVFRRNLQJDUHDVDQGIDFWRULHVLQ
ZKLFKWKHSURSHUWLHVRISODVWLFFRXOGEHFKDQJHGDQG
damaged).
 6DOW\SODFHVVXFKDVWKHVHDVLGH
 :KHUHVXO¿GHJDVLVJHQHUDWHGVXFKDVKRWVSULQJ
VHZDJHZDVWHZDWHU

:KHUHWKHUHLVKLJKIUHTXHQF\RUZLUHOHVVHTXLSPHQW
  :KHUHWKHUHLVHPLVVLRQRIKLJKOHYHOVRI92&VLQFOXG-
LQJSKWKDODWH FRPSRXQGV IRUPDOGHK\GH HWF ZKLFK
PD\FDXVHFKHPLFDOFUDFNLQJ

Indoor unit
Wall hole
sleeve (C)
Pipe attachment
strap (E)
Use the wall hole sleeve
(C) to prevent indoor/
outdoor connecting wire
(A) from contacting metal
parts in the wall and to
protect the wiring from
rodents.
Wall hole cover (D)
Attachment screw (F)
Cut off the
extra length.
1-4. INSTALLATION DIAGRAM
ACCESSORIES
&KHFNWKHIROORZLQJSDUWVEHIRUHLQVWDOODWLRQ
<Indoor unit>
(1) Installation plate 1
(2)
Attachment screws for the installa-
tion plate
4 × 25 mm
5
(3) Wireless remote controller 1
(4) Felt tape (For left or left-rear piping) 1
(5) %DWWHU\$$$IRU 2
(6) 5HPRWHFRQWUROOHUKROGHU 1
(7)
6FUHZVIRUWKHUHPRWHFRQWUROOHU
holder
îPP%ODFN
2
FIELD-SUPPLIED PARTS
(A) Indoor/outdoor unit connecting wire *1 1
% Extension pipe 1
(C) Wall hole sleeve 1
(D) Wall hole cover 1
(E) Pipe attachment strap 2 to 5
(F) 6FUHZIRU(îPP 2 to 5
* Piping tape 1
(H) 3XWW\ 1
(I)
Drain hose
RUVRIW39&KRVHLQ>
mm] inner diameter or hard PVC
pipe VP16)
2 to 5
(J) 5HIULJHUDQWRLO 1
(K) 3RZHUVXSSO\FRUG
*1 1
8QLWVVKRXOGEHLQVWDOOHGE\OLFHQVHGFRQWUDFWRU
DFFRUGLQJWRORFDOFRGHUHTXLUHPHQWV
$IWHUWKHOHDNWHVWDSSO\LQVXODWLQJPDWH-
ULDOWLJKWO\VRWKDWWKHUHLVQRJDS
:KHQWKHSLSLQJLVWREHDWWDFKHGWRDZDOO
FRPSULVHGRIWLQSODWHRUPHWDOQHWWLQJXVH
FKHPLFDOO\WUHDWHGZRRGHQSLHFHLQ
PPRUWKLFNHUEHWZHHQWKHZDOODQG
WKHSLSLQJRUZUDSLQVXODWLRQYLQ\OWDSH
to 8 turns around the piping.
7RXVHH[LVWLQJSLSLQJSHUIRUP&22/
RSHUDWLRQIRUPLQXWHVDQGSXPSGRZQ
EHIRUHUHPRYLQJWKHROGDLUFRQGLWLRQHU
5HPDNHÀDUHDFFRUGLQJWRWKHGLPHQVLRQ
for new refrigerant.
Note:
*1 Place indoor/outdoor unit connecting wire (A)
DQGSRZHUVXSSO\FRUG.DWOHDVWIWP
DZD\IURPWKH79DQWHQQDZLUH
(6)
(7)
(3)
(5)
4-3/8 in.
PP
or more
3-7/8 in.
PP
or more
2-1/8 in. (54
mm) or more/
LQPP
or more for left and
OHIWEDFNSLSLQJ
(using spacer)
LQPP
or more
Drain piping for outdoor unit
,QVWDOOWKHXQLWKRUL]RQWDOO\
'RQRWXVHGUDLQVRFNHWLQFROGUHJLRQV'UDLQPD\IUHH]HDQGPDNHWKHIDQVWRS
7KHRXWGRRUXQLWSURGXFHVFRQGHQVDWHGXULQJWKHKHDWLQJRSHUDWLRQ6HOHFWWKHLQVWDOODWLRQSODFHWRHQVXUHWRSUHYHQWWKHRXWGRRUXQLWDQGRUWKHJURXQGVIURPEHLQJZHWE\GUDLQ
ZDWHURUGDPDJHGE\IUR]HQGUDLQZDWHU
LQPP
or more
LQPP
or more
LQPP
or more
LQPP
or more
clear *2
*2  LQ PPRUPRUH
when front and sides of
unit are clear
*3 :KHQDQ\VLGHVRIOHIWULJKWDQG
rear of unit are clear
8QLWPP


Air inlet
Air outlet

× 21 slot
344.5
285


a
Air inlet
8QLWLQFK
31-1/2

Air inlet
Air outlet

11-1/4
2-3/8 × 13/16 slot
a

5-15/16
Air inlet
Attach the pipe to
wall with pipe at-
tachment strap (E).
6HDOWKHZDOOKROH
JDSZLWKSXWW\+

 &RQQHFWZLUHVWRWKHDSSURSULDWHWHUPLQDOV
 )RUIXWXUHVHUYLFLQJOHDYHVRPHVODFNLQWKHFRQQHFWLQJZLUHV
 0DNHJURXQGZLUHDOLWWOHORQJHUWKDQRWK-
HUV0RUHWKDQLQ>PP@
2-1. ATTACHING THE INSTALLATION PLATE
 )LQGDVWXGLQWKHZDOOWRDWWDFKLQVWDOODWLRQSODWHKRUL]RQWDOO\RQWKHZDOOZLWKVFUHZV
 7RSUHYHQWLQVWDOODWLRQSODWHIURPYLEUDWLQJEHVXUHWRLQVWDOOWKHDWWDFKPHQWVFUHZVLQ
WKHKROHVLQGLFDWHGLQWKHLOOXVWUDWLRQ)RUDGGHGVXSSRUWDGGLWLRQDOVFUHZVPD\DOVREH
installed in other holes.
 :KHQWKHLQGRRUXQLWLV WREHDWWDFKHGWRDFRQFUHWH ZDOO XVLQJUHFHVVHGEROWVVHFXUH
LQVWDOODWLRQSODWHXVLQJLQ[LQÂLQ[LQPPîPPÂPPî
PPRYDOKROHLQ>PP@SLWFK
 ,IWKHUHFHVVHGEROWLVWRRORQJFKDQJHLWIRUDVKRUWHURQH¿HOGVXSSOLHG
Wall
2XWGRRUVLGH
2-2. DRILLING
'HWHUPLQHZKHUHWKHKROHVZLOOEHORFDWHGRQWKHZDOO
'ULOOD¡LQPPKROH7KHRXWGRRUVLGHVKRXOGEHWRLQWRPPORZHU
than the indoor side.
3) Insert wall hole sleeve (C).
2-3. CONNECTING WIRES FOR INDOOR UNIT
Note:
:KHQWKHLQGRRUXQLWLVSRZHUHGIURPWKHRXWGRRUXQLWGHSHQGLQJRQORFDOFRGHDGLVFRQ-
QHFWVZLWFKQHHGVWREHLQVWDOOHGWRDSRZHUVXSSO\FLUFXLW
5HPRYHWKHSDQHODVVHPEO\5HIHUWR
2) Place the upper part of the indoor unit on the installation plate.
5HPRYHFRUQHUER[DQGHOHFWULFDOFRYHU
5HPRYHGLVSOD\SDQHOFRQGXLWFRYHUDQGFRQGXLWSODWH
$WWDFKFRQGXLW SLSHIRUUHDUSLSLQJHOERZMRLQWIRUULJKW OHIWRUGRZQZDUGSLSLQJWR
FRQGXLWSODWHZLWKORFNQXW7KHWKUHDGRIWKHLQVWDOOHGFRQGXLWSLSHHOERZMRLQWDSSHDULQJ
LQVLGHVKRXOGEHOHVVWKDQLQPP)LJ(OERZMRLQWVKRXOGDSSHDUOHVVWKDQ
LQPPRXWVLGH)LJ
6) Process the end of ground wire (Fig. 3). Connect it to the ground terminal of electrical parts
ER[
7) Process the end of indoor/outdoor unit connecting wire (A) (Fig. 3). Attach it to the terminal
EORFN%HFDUHIXOQRWWRPDNHPLVZLULQJ$WWDFKWKHZLUHWRWKHWHUPLQDOEORFNVHFXUHO\VR
WKDWLWVFRUHFDQQRWEHVHHQDQGQRH[WHUQDOIRUFHDIIHFWVWKHFRQQHFWLQJVHFWLRQRIWKH
WHUPLQDOEORFN
)LUPO\WLJKWHQWKHWHUPLQDOVFUHZV$IWHUWLJKWHQLQJYHULI\WKDWWKHZLUHVDUHWLJKWO\IDVWHQHG
5HLQVWDOOFRQGXLWSODWHFRQGXLWFRYHUDQGGLVSOD\SDQHO
$FFRUGLQJWRWKHSLSLQJGLUHFWLRQUHPRYHWKHVKDGHGSDUWRIWKHOHIWVLGHRIER[)LJ
RUFRUQHUER[)LJ5HLQVWDOOHOHFWULFDOFRYHUFRUQHUER[DQGIURQWSDQHO
/HVVWKDQLQ
PP
Conduit plate
Conduit pipe or
HOERZMRLQW
/RFNQXW
LQ
(5-7 mm)
Ø 3 in.
(75 mm)
Indoor terminal
EORFN
Fixing
screw
Conduit cover
/RFNQXW
Conduit plate
(OERZMRLQW
IRUULJKWOHIWRUGRZQZDUGSLSLQJ
(OERZMRLQW
IRUULJKWOHIWRUGRZQZDUGSLSLQJ
/HVVWKDQLQ
PP
Fig. 1 Fig. 2
Fig. 3 Fig. 4 Fig. 5
%R[
5HPRYHSDQHOIRU
piping on left side
of unit
5HPRYHSDQHOIRU
SLSLQJRQERWWRPOHIW
side of unit
/HYHO
Installation plate (1)
3OXPE
$OLJQWKHSOXPE
line with the
PDUN .
Center of
ø 3 in.
(75 mm) hole
4-3/8 in.
PP
or more
3-7/8 in.
PP
or more
2-1/8 in. (54 mm) or more
LQPPRUPRUHIRUOHIW
DQGOHIWEDFNSLSLQJXVLQJVSDFHU
Ceiling
Wall
Attachment screw (2) Insert
the
scale.
Align the
scale with
the line.
LQPP
N
INDOOR UNIT
7HUPLQDOEORFN
115 V AC
1phase, 60 Hz
*URXQGLQJ
terminal**
Disconnect
switch*
OUTDOOR UNIT
*URXQGLQJWHUPLQDO
*URXQG
3RZHUVXSSO\
9$&
1phase 2wires.
+]
7HUPLQDO EORFN
Remark:
* A disconnect switch
VKRXOGEHUHTXLUHG
&KHFNWKHORFDOFRGH
** Use a ring tongue termi-
nal in order to connect a
ground wire to terminal.
Electrical cover (OHFWULFDOER[
'LVSOD\SDQHO
Conduit pipe
(for rear piping)
Conduit plate
or
Wall
*URXQGLQJ
terminal
/HDG
wire
LQ
(15 mm)
2. INDOOR UNIT INSTALLATION
&RUQHUER[
5HPRYHFRUQHUER[IRU
piping on right side of unit
5HPRYHFRUQHUER[
IRUSLSLQJRQERWWRP
right side of unit
%LQGWKHOLQHWRWKHFHQWHUKROH

2-4-2. DRAIN PIPING
 ,IWKHH[WHQVLRQGUDLQKRVHKDVWRSDVVWKURXJKDURRPEHVXUHWRZUDSLWZLWKLQVXODWLRQ
¿HOGVXSSOLHG
 7KHGUDLQKRVHVKRXOGSRLQWGRZQZDUGIRUHDV\GUDLQ)LJ
 ,IWKHGUDLQKRVHSURYLGHGZLWKWKHLQGRRUXQLWLVWRRVKRUWFRQQHFWLWZLWKD¿HOGVXSSOLHG
drain hose (I). (Fig. 2)
 :KHQFRQQHFWLQJWKHGUDLQKRVHWRDKDUGYLQ\OFKORULGHSLSHEHVXUHWRLQVHUWLWVHFXUHO\
into the pipe. (Fig. 3)
'RQRWPDNHGUDLQSLSLQJDVVKRZQEHORZ
Do not raise Accumulated
drain water
Air
Waving
Water
OHDNDJH
Water
OHDNDJH
Water
OHDNDJH
7LSRIGUDLQ
hose dipped
in water
Ditch
At least
1-31/32 in.
PP
gap
Downward
slope
Drain
hose
6RIWKRVH
,'LQ
(15 mm)
Drain hose
+DUGYLQ\OFKORULGHSLSH
I.D. 1-3/16 in.
PP
Insert
VHFXUHO\
Different
diameter
MRLQW
LQ
FP
or more
Fig. 1 Fig. 2 Fig. 3
/LTXLGSLSH
*DVSLSH
Felt tape (4)
Indoor/outdoor unit
connecting wire (A)
3LSLQJWDSH*
2-4. PIPE FORMING AND DRAIN PIPING
2-4-1. PIPE FORMING
 3ODFHWKHGUDLQKRVHEHORZWKHUHIULJHUDQWSLSLQJ
 0DNHVXUHWKDWWKHGUDLQKRVHLVQRWFURZGHGRUEHQW
 'RQRWSXOOWKHKRVHZKHQDSSO\LQJWKHWDSH
 :KHQWKHGUDLQKRVHSDVVHVWKHURRPEHVXUHWRZUDSLWZLWKLQVXODWLRQPDWHULDO¿HOG
supplied).
Note:
0DNHVXUHQRWWRGDPDJHWKHFRYHURIUHIULJHUDQWSLSHZKHQDWWDFKLQJLWEDFNRQZLWK
screws.
Left or left-rear piping
Note:
%HVXUHWRUHDWWDFKWKHGUDLQKRVHDQGWKHGUDLQFDSLIWKHSLSLQJLVEHLQJLQVWDOOHGRQ
OHIWRUERWWRPOHIWRIXQLWRWKHUZLVHZDWHUFRXOGGULSGRZQIURPWKHGUDLQKRVH
3ODFHWKHUHIULJHUDQWSLSLQJDQGWKHGUDLQKRVHWRJHWKHUWKHQ¿UPO\DSSO\IHOWWDSH
from the end.
 )HOWWDSHRYHUODSZLGWKVKRXOGEHWKHWDSHZLGWK8VHDEDQGDJHVWRSSHUDWWKH
end of felt tape (4).
3XOORXWWKHGUDLQFDSDWWKHEDFNULJKWRIWKHLQGRRUXQLW)LJ
 +ROGWKHFRQYH[VHFWLRQDWWKHHQGDQGSXOOWKHGUDLQFDS
3XOORXWWKHGUDLQKRVHDWWKHEDFNOHIWRIWKHLQGRRUXQLW)LJ
 +ROGWKHFODZPDUNHGE\WKHDUURZVDQGSXOORXWWKHGUDLQKRVHIRUZDUG
3XWWKHGUDLQFDSLQWRWKHVHFWLRQWRZKLFKWKHGUDLQKRVHLVWREHDWWDFKHGDWWKHUHDU
of the indoor unit. (Fig. 3)
 ,QVHUWDVFUHZGULYHULQWRWKHKROHRQWKHFDSDQGLQVHUWWKHFDSIXOO\LQWRWKHGUDLQ
pan.
,QVHUWWKHGUDLQKRVHIXOO\LQWRWKHGUDLQSDQDWWKHEDFNULJKWRIWKHLQGRRUXQLW)LJ
 &KHFNLIWKHKRVHLVKRRNHGVHFXUHO\WRWKHSURMHFWLRQRILWVLQVHUWLQJSDUWDWWKH
drain pan.
,QVHUWWKHGUDLQKRVHLQWRZDOOKROHVOHHYH&DQGDWWDFKWKHXSSHUSDUWRILQGRRUXQLW
RQWRWKHLQVWDOODWLRQSODWH7KHQVKLIWWKHLQGRRUXQLWFRPSOHWHO\WRWKHOHIWWRPDNH
SODFLQJWKHSLSLQJLQWKHEDFNRIWKHXQLWHDVLHU
&XWRXWDSLHFHRIFDUGERDUGIURPWKHVKLSSLQJER[UROOLWXSKRRNLWRQWRWKHEDFNULE
and use it as a spacer to lift the indoor unit. (Fig. 5)
&RQQHFWWKHUHIULJHUDQWSLSLQJZLWKWKHH[WHQVLRQSLSH%
$WWDFKWKHORZHUSDUWRIWKHLQGRRUXQLWLQWRWKHLQVWDOODWLRQSODWH
5HPRYHSDQHOIRUSLSLQJ
on left side of unit.
Drain cap
Drain hose
Drain cap
Drain hose
Fig. 1 Fig. 2
Fig. 3 Fig. 4
Fig. 5
3LSLQJWDSH*
Felt tape (4)
Rear or bottom piping
3ODFHWKHUHIULJHUDQWSLSLQJDQGWKHGUDLQKRVHWRJHWKHUWKHQ¿UPO\DSSO\SLSLQJWDSH
*IURPWKHHQG
,QVHUWWKHSLSLQJDQGWKHGUDLQKRVHLQWRWKHZDOOKROHVOHHYH&DQGDWWDFKWKHXSSHU
part of the indoor unit on the installation plate (1).
&KHFNLIWKHLQGRRUXQLWLVDWWDFKHGVHFXUHO\RQWKHLQVWDOODWLRQSODWHE\PRYLQJWKH
unit to left and right.
4) Attach the lower part of the indoor unit into the installation plate (1).
Right piping
Note:
%HIRUHSHUIRUPLQJWKHIROORZLQJPDNHVXUHWKDWZLULQJLVFRPSOHWHGDQGWKHFRQGXLW
FRYHULVLQVWDOOHG5HIHUWR
3ODFHWKHUHIULJHUDQWSLSLQJDQGWKHGUDLQKRVHWRJHWKHUVKLIWWKHPWROHIWVLGHRIWKH
XQLWDQGWKHQ¿UPO\DSSO\SLSLQJWDSH*IURPWKHHQG
,QVHUWWKHSLSLQJDQGWKHGUDLQKRVHLQWRWKHZDOOKROHVOHHYH&DQGDWWDFKWKHXSSHU
part of the indoor unit on the installation plate (1).
&KHFNLIWKHLQGRRUXQLWLVDWWDFKHGVHFXUHO\RQWKHLQVWDOODWLRQSODWHE\PRYLQJWKH
unit to left and right.
4) Attach the lower part of the indoor unit into the installation plate (1).
7RWKHOHIW
5HPRYHSDQHO
for piping on
right side of
unit
5HPRYHSDQHOIRUSLSLQJRQ
ERWWRPVLGHRIXQLW

3-1. CONNECTING WIRES FOR OUTDOOR UNIT
5HPRYHWKHVHUYLFHSDQHO
5HPRYHWKHFRQGXLWFRYHU
$WWDFKWKHFRQGXLWFRQQHFWRUWRFRQGXLWSODWHZLWKORFNQXWWKHQVHFXUHLWDJDLQVWXQLWZLWKVFUHZV
&RQQHFWJURXQGZLUHVRILQGRRURXWGRRUXQLWFRQQHFWLQJZLUH$DQGSRZHUVXSSO\FRUG.WR
WKH7%VXSSRUW
/RRVHQWKHWHUPLQDOVFUHZDQGDWWDFKLQGRRURXWGRRUXQLWFRQQHFWLQJZLUH$IURPWKHLQGRRU
XQLWFRUUHFWO\RQWKHWHUPLQDOEORFN$WWDFKWKHZLUHWRWKHWHUPLQDOEORFNVHFXUHO\VRWKDWLWVFRUH
FDQQRWEHVHHQDQGQRH[WHUQDOIRUFHDIIHFWVWKHFRQQHFWLQJVHFWLRQRIWKHWHUPLQDOEORFN
)LUPO\WLJKWHQWKHWHUPLQDOVFUHZV$IWHUWLJKWHQLQJYHULI\WKDWWKHZLUHVDUHWLJKWO\IDVWHQHG
&RQQHFWSRZHUVXSSO\FRUG.
8) Install the conduit cover.
,QVWDOOWKHVHUYLFHSDQHOVHFXUHO\
3-2. FLARE CONNECTION
&XWWKHFRSSHUSLSHDVVWUDLJKWDVSRVVLEOHZLWKDSLSHFXWWHU)LJ
5HPRYHDOOEXUUVIURPWKHFXWVHFWLRQRIWKHSLSHHQVXULQJWKDWSUHFDXWLRQVDUHWDNHQWRDYRLG
getting metal shavings into the piping. (Fig. 3)
5HPRYHÀDUHQXWVDWWDFKHGWRLQGRRUDQGRXWGRRUXQLWVWKHQSXWWKHPRQSLSH
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LQFKPPIURPWKHWDEOHDFFRUGLQJWRWKHWRRO\RXXVH
&KHFN
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 0DNHJURXQGZLUHDOLWWOHORQJHUWKDQRWK-
HUV0RUHWKDQLQ>PP@
 )RUIXWXUHVHUYLFLQJOHDYHVRPHVODFNLQ
the connecting wires.
 %HVXUHWRDWWDFKHDFKVFUHZWRLWVFRUUH-
spondent terminal when securing the cord
DQGRUWKHZLUHWRWKHWHUPLQDOEORFN
Power supply cord (K)
L1 N
Copper
pipe
*RRG
90°
7LOWHG
1RJRRG
Fig. 1 Fig. 2
%XUU Copper pipe
6SDUHUHDPHU
Pipe cutter
Fig. 4
Fig. 3
6PRRWKDOODURXQG
Even length
all around
Inside is shin-
LQJZLWKRXWDQ\
scratches.
Fig. 5
Fig. 6
&OXWFKW\SH
Flaring tool
:LQJQXWW\SH
Uneven %XUUHG
Pipe diam-
eter inch
(mm)
%
inch
(mm)
A inch (mm) 7LJKWHQLQJWRUTXH
Clutch
W\SHWRRO
IRU5$
Clutch
W\SHWRRO
IRU5
Wing nut
W\SHWRRO
IRU5
IWOE
NJIFP 1P
ø 1/4 (6.35) 21/32
(17)
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WR
WR

WR
1.5)
WR

(1.5 to

WR
WR 13.7 to 17.7
¡ 7/8
(22)
WR
WR 34.3 to 41.2
ø 1/2 (12.7) 1-1/32
(26) WR

WR
2.5)
36 to 42
WR WR
ø 5/8 (15.88)
1-5/32

54 to 58
WR 73.5 to 78.4
B
Flare nut
Die Copper pipe
7HUPLQDOEORFN
Power supply cord (K)
Indoor/outdoor unit
connecting wire (A)
6HUYLFHSDQHO
/RFNQXW
Conduit cover
Conduit plate
Conduit pipe
*URXQGLQJ
terminal
7%VXSSRUW to conduit cover
3. OUTDOOR UNIT INSTALLATION
/HDG
wire
LQ
(15 mm)

3-3. PIPE CONNECTION
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LQEXUQVRUIURVWELWH
Indoor unit connection
&RQQHFWERWKOLTXLGDQGJDVSLSLQJVWRLQGRRUXQLW
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RLORQVFUHZWKUHDGV([FHVVLYHWLJKWHQLQJWRUTXHZLOOUHVXOWLQGDPDJHRQWKHVFUHZ
 7RFRQQHFW¿UVWDOLJQWKHFHQWHUWKHQWLJKWHQWKH¿UVWWRWXUQVRIÀDUHQXW
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XVLQJWZRZUHQFKHV([FHVVLYHWLJKWHQLQJGDPDJHVWKHÀDUHVHFWLRQ
Outdoor unit connection
&RQQHFWSLSHVWRVWRSYDOYHSLSHMRLQWRIWKHRXWGRRUXQLWIROORZLQJWKHVDPHSURFHGXUH
detailed in Indoor unit connection.
 )RUWLJKWHQLQJXVHDWRUTXHZUHQFKRUVSDQQHU
4-1. PURGING PROCEDURES AND LEAK TEST
5HPRYHVHUYLFHSRUWFDSVIURPVWRSYDOYHVRQERWKVLGHVRIUHIULJHUDQWOLQHV7KHVWRS
YDOYHVDUHIXOO\FORVHGZKHQVKLSSHG/HDYHFORVHG
2) Connect gauge manifold to ports of stop valves.
4-4. EXPLANATION TO THE USER
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(YDFXDWHWKHV\VWHPWRPLFURQVIURPERWKVHUYLFHYDOYHV6\VWHPPDQLIROGJDXJHV
PXVWQRWEHXVHGWRPHDVXUHYDFXXP$PLFURQJDXJHPXVWEHXVHGDWDOOWLPHV%UHDN
WKHYDFXXPZLWK1LWURJHQ1LQWRWKHGLVFKDUJHVHUYLFHYDOYHWR36,*
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GLVFKDUJHVHUYLFHYDOYHWR36,*
(YDFXDWHWKHV\VWHPWRPLFURQV
&ORVHJDXJHPDQLIROGYDOYHVVWRSWKHSXPSDQGFRQGXFWDPLQXWHULVHWHVW
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IXOO\RSHQLQJORZHUVWKHSHUIRUPDQFHDQGWKLVFDXVHVWURXEOH
5HIHUWRDQGFKDUJHWKHSUHVFULEHGDPRXQWRIDGGLWLRQDOUHIULJHUDQWLIQHHGHG%H
VXUHWRFKDUJHVORZO\ZLWKOLTXLGUHIULJHUDQW2WKHUZLVHFRPSRVLWLRQRIWKHUHIULJHUDQWLQ
WKHV\VWHPPD\EHFKDQJHGDQGDIIHFWSHUIRUPDQFHRIWKHDLUFRQGLWLRQHU
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/HDNWHVW
4-2. TEST RUN
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WKHEUHDNHU
3UHVVWKH(26:RQFHIRU&22/DQGWZLFHIRU+($7RSHUD-
WLRQ7HVWUXQZLOOEHSHUIRUPHGIRUPLQXWHV,IWKHXSSHU
ODPS RI WKH RSHUDWLRQ LQGLFDWRU EOLQNV HYHU\  VHFRQGV
inspect the indoor/outdoor unit connecting wire (A) for mis-
ZLULQJ$IWHUWKHWHVWUXQHPHUJHQF\PRGHVHWWHPSHUDWXUH
)>&@ZLOOVWDUW
7RVWRSRSHUDWLRQSUHVVWKH(26:VHYHUDOWLPHVXQWLODOO
/('ODPSVWXUQRII5HIHUWRRSHUDWLQJLQVWUXFWLRQVIRUGHWDLOV
Checking the remote (infrared) signal reception
3UHVVWKH2))21EXWWRQRQWKHUHPRWHFRQWUROOHUDQGOLVWHQIRUDQDXGLEOHLQGLFDWRU
IURPWKHLQGRRUXQLW3UHVVWKH2))21EXWWRQDJDLQWRWXUQWKHDLUFRQGLWLRQHURII
 2QFHWKHFRPSUHVVRUVWRSVWKHUHVWDUWSUHYHQWLYHGHYLFHRSHUDWHVVRWKHFRPSUHVVRUZLOO
not operate for 3 minutes to protect the air conditioner.
4-3. AUTO RESTART FUNCTION
7KLVSURGXFWLVHTXLSSHGZLWKDQDXWRUHVWDUWIXQFWLRQ:KHQWKHSRZHUVXSSO\LVFXWRII
GXULQJRSHUDWLRQVXFKDVGXULQJEODFNRXWVWKHIXQFWLRQDXWRPDWLFDOO\VWDUWVRSHUDWLRQLQ
WKHSUHYLRXVVHWWLQJRQFHWKHSRZHUVXSSO\LVUHVXPHG5HIHUWRWKHRSHUDWLQJLQVWUXFWLRQV
for details.)
(PHUJHQF\RS-
eration switch
(26:
Caution:
 $IWHUWHVWUXQRUUHPRWHVLJQDOUHFHSWLRQFKHFNWXUQRIIWKHXQLWZLWKWKH(26:RUWKH
UHPRWHFRQWUROOHUEHIRUHWXUQLQJRIIWKHSRZHUVXSSO\,IWKLVSURFHGXUHLVQRWSHUIRUPHG
WKHXQLWZLOODXWRPDWLFDOO\EHJLQRSHUDWLRQZKHQSRZHUVXSSO\LVUHVXPHG
To the user
 $IWHULQVWDOOLQJWKHXQLWH[SODLQWRWKHXVHUDERXWDXWRUHVWDUWIXQFWLRQ
 ,IDXWRUHVWDUWIXQFWLRQLVXQQHFHVVDU\LWFDQEHGHDFWLYDWHG&RQVXOWWKHVHUYLFHUHS-
UHVHQWDWLYHWRGHDFWLYDWHWKHIXQFWLRQ5HIHUWRWKHVHUYLFHPDQXDOIRUGHWDLOV
3-4. INSULATION AND TAPING
&RYHUSLSLQJMRLQWVZLWKSLSHFRYHU
)RURXWGRRUXQLWVLGHLQVXODWHWKHSLSLQJLQFOXGLQJYDOYHV
$SSO\SLSLQJWDSH*VWDUWLQJIURPWKHFRQQHFWLRQRQWKHRXWGRRUXQLW
 :KHQSLSLQJKDVWREHLQVWDOOHGWKURXJKDFHLOLQJFORVHWRUZKHUHWKHWHPSHUDWXUHDQG
KXPLGLW\DUHKLJKXVHDGGLWLRQDO¿HOGVXSSOLHGLQVXODWLRQWRSUHYHQWFRQGHQVDWLRQ
WARNING
When installing the unit, securely connect the refrigerant pipes before starting
the compressor.
6WRSYDOYHIRU
*$6
6WRSYDOYHFDS
7RUTXHWR
IWOEWR
1P
WRNJIƒFP
Vacuum pump (or the vacuum
pump with the function to
SUHYHQWWKHEDFNÀRZ
*DXJHPDQLIROGYDOYH
IRU5$
Compound pressure gauge
IRU5$
±SVL>*DXJH@
±0SD
Handle
/RZ Handle High
Adapter for
preventing the
EDFNÀRZ
Charge hose
IRU5$
*Close
2SHQ
Hexagonal wrench
Precautions when using the control valve When attaching the control valve
WRWKHVHUYLFHSRUWYDOYHFRUHPD\
deform or loosen if excess pressure
LVDSSOLHG7KLVPD\FDXVHJDVOHDN
6HUYLFHSRUW
Charge hose
%RG\
Close
2SHQ
Control valve
A
When attaching the control valve to
WKHVHUYLFHSRUWPDNHVXUHWKDWWKH
YDOYHFRUHLVLQFORVHGSRVLWLRQDQG
then tighten part A. Do not tighten
SDUW$RUWXUQWKHERG\ZKHQYDOYH
core is in open position.
6HUYLFHSRUWFDS
7RUTXHWRIW
,EWR1P
WRNJIcm)
*4 to 5 turns
6WRSYDOYHIRU
/,48,'
Pressure gauge
IRU5$
4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN

5-3. PUMPING DOWN
:KHQUHORFDWLQJRUGLVSRVLQJRIWKHDLUFRQGLWLRQHUSXPSGRZQWKHV\VWHPIROORZLQJ
WKHSURFHGXUHEHORZVRWKDWUHIULJHUDQWLVQRWUHOHDVHGLQWRWKHDWPRVSKHUH
1) Connect the gauge manifold valve to the service port of the stop valve on the gas
pipe side of the outdoor unit.
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5-1. REMOVING AND INSTALLING THE PANEL
ASSEMBLY
Removal procedure
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Installation procedure
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When pumping down the refrigerant, stop the compressor before disconnecting
the refrigerant pipes. The compressor may burst if air etc. get into it.
WARNING
5. RELOCATION AND MAINTENANCE
5-2. REMOVING THE INDOOR UNIT
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MITSUBISHI ELECTRIC TRANE HVAC US LLC
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Publication No. DL-SVN023A-EN Published Dec. 2018