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Mitsubishi Electric MUZ-FH50VE User Manual

Mitsubishi Electric MUZ-FH50VE
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1. BEFORE INSTALLATION
1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
 %HVXUHWRUHDG³7+()2//2:,1*6+28/'$/:$<6%(2%6(59(')256$)(7<´EHIRUHLQVWDOOLQJWKHDLUFRQGLWLRQHU
 %HVXUHWRREVHUYHWKHZDUQLQJVDQGFDXWLRQVVSHFL¿HGKHUHDVWKH\LQFOXGHLPSRUWDQWLWHPVUHODWHGWRVDIHW\
 $IWHUUHDGLQJWKLVPDQXDOEHVXUHWRNHHSLWWRJHWKHUZLWKWKH23(5$7,1*,16758&7,216IRUIXWXUHUHIHUHQFH
1-2. SELECTING THE INSTALLATION LOCATION
1-3. SPECIFICATIONS
CAUTION
&RXOGOHDGWRVHULRXVLQMXU\LQSDUWLFXODUHQYLURQPHQWVZKHQRSHUDWHGLQFRUUHFWO\
INDOOR UNIT
 :KHUHDLUÀRZLVQRWEORFNHG
 :KHUHFRRODLUVSUHDGVRYHUWKHHQWLUHURRP
 5LJLGZDOOZLWKRXWYLEUDWLRQ
 :KHUHLWLVQRWH[SRVHGWRGLUHFWVXQVKLQH'RQRWH[SRVHWR
GLUHFWVXQVKLQHDOVRGXULQJWKHSHULRGIROORZLQJXQSDFNLQJ
WREHIRUHXVH
 :KHUHHDVLO\GUDLQHG

$W D GLVWDQFH  P RU PRUH DZD\ IURP \RXU 79 DQG UDGLR
2SHUDWLRQRIWKHDLUFRQGLWLRQHUPD\LQWHUIHUHZLWKUDGLRRU79
UHFHSWLRQ$QDPSOL¿HUPD\EHUHTXLUHGIRUWKHDIIHFWHGGHYLFH

,QDSODFHDVIDUDZD\DVSRVVLEOHIURPÀXRUHVFHQWDQGLQFDQGHV-
FHQW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
REMOTE CONTROLLER
 :KHUHLWLVHDV\WRRSHUDWHDQGHDVLO\YLVLEOH

:KHUHFKLOGUHQFDQQRWWRXFKLW
 6HOHFWDSRVLWLRQDERXWPDERYHWKHÀRRUDQGFKHFNWKDW
VLJQDOVIURPWKHUHPRWHFRQWUROOHUDUHVXUHO\UHFHLYHGE\WKH
LQGRRUXQLWIURPWKDWSRVLWLRQµEHHS¶RUµEHHSEHHS¶UHFHLYLQJ
WRQHVRXQGV$IWHUWKDWDWWDFKUHPRWHFRQWUROOHUKROGHUWR
a pillar or wall and install wireless remote controller.
Note:
,Q URRPV ZKHUH LQYHUWHU W\SH ÀXRUHVFHQW ODPSV DUH XVHG
WKH VLJQDO IURP WKH ZLUHOHVV UHPRWH FRQWUROOHU PD\ QRW EH
received.
OUTDOOR UNIT
 :KHUHLWLVQRWH[SRVHGWRVWURQJZLQG

:KHUHDLUÀRZLVJRRGDQGGXVWOHVV
 :KHUHUDLQRUGLUHFWVXQOLJKWFDQEHDYRLGHGDVPXFKDV
SRVVLEOH
 :KHUHQHLJKERXUVDUHQRWDQQR\HGE\RSHUDWLRQVRXQGRU
hot air.
 :KHUHULJLGZDOORUVXSSRUWLVDYDLODEOHWRSUHYHQWWKH
LQFUHDVHRIRSHUDWLRQVRXQGRUYLEUDWLRQ
 :KHUHWKHUHLVQRULVNRIFRPEXVWLEOHJDVOHDNDJH
 :KHQLQVWDOOLQJWKHXQLWDWDKLJKOHYHOEHVXUHWRVHFXUH
the unit legs.
 :KHUHLWLVDWOHDVWPDZD\IURPWKHDQWHQQDRI79VHW
RUUDGLR2SHUDWLRQRIWKHDLUFRQGLWLRQHUPD\LQWHUIHUHZLWK
UDGLRRU79UHFHSWLRQLQDUHDVZKHUHUHFHSWLRQLVZHDN$Q
DPSOL¿HUPD\EHUHTXLUHGIRUWKHDIIHFWHGGHYLFH
 ,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VRPHEDIÀHERDUGV
Note:
,WLVDGYLVDEOHWRPDNHDSLSLQJORRSQHDURXWGRRUXQLWVRDV
WRUHGXFHYLEUDWLRQWUDQVPLWWHGIURPWKHUH
&RQQHFWWRWKHSRZHUVZLWFKZKLFKKDVDJDSRIPPRUPRUH
ZKHQRSHQWRLQWHUUXSWWKHVRXUFHSRZHUSKDVH:KHQWKH
power switch is shut off, it must interrupt all phases.)
8VHZLUHVLQFRQIRUPLW\ZLWKGHVLJQ,(&
1HYHUXVHSLSHVZLWKWKLFNQHVVOHVVWKDQVSHFL¿HG7KHSUHV-
VXUHUHVLVWDQFHZLOOEHLQVXI¿FLHQW
8VHDFRSSHUSLSHRUDFRSSHUDOOR\VHDPOHVVSLSH
%H FDUHIXO QRWWR FUXVK RUEHQG WKH SLSHGXULQJ SLSH EHQG-
ing.
5HIULJHUDQWSLSHEHQGLQJUDGLXVPXVWEHPPRUPRUH
,I SLSH OHQJWK H[FHHGV  P DGGLWLRQDO UHIULJHUDQW 5$
FKDUJHLVUHTXLUHG1RDGGLWLRQDOFKDUJHLVUHTXLUHGIRUSLSH
OHQJWKOHVVWKDQP
$GGLWLRQDOUHIULJHUDQW $îSLSHOHQJWKP±
,QVXODWLRQ PDWHULDO  +HDW UHVLVWLQJ IRDP SODVWLF 
VSHFL¿FJUDYLW\
%HVXUHWRXVHWKHLQVXODWLRQRIVSHFL¿HGWKLFNQHVV([FHVVLYH
WKLFNQHVVPD\FDXVHLQFRUUHFWLQVWDOODWLRQRIWKHLQGRRUXQLW
DQGLQVXI¿FLHQWWKLFNQHVVPD\FDXVHGHZGULSSDJH
Note:
:KHQRSHUDWLQJWKHDLUFRQGLWLRQHULQORZRXWVLGHWHPSHUD-
WXUH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ZLWK
its air inlet side facing the wall.

7RSUHYHQWH[SRVXUHWRZLQGLWLVUHFRPPHQGHGWRLQVWDOO
DEDIÀHERDUGRQWKHDLURXWOHWVLGHRIWKHRXWGRRUXQLW
$YRLGWKHIROORZLQJSODFHVIRULQVWDOODWLRQZKHUHDLUFRQGL-
WLRQHUWURXEOHLVOLDEOHWRRFFXU
 :KHUHÀDPPDEOHJDVFRXOGOHDN
 :KHUHWKHUHLVPXFKPDFKLQHRLO
 :KHUHRLOLVVSODVKHGRUZKHUHWKHDUHDLV¿OOHGZLWKRLO\
VPRNHVXFKDVFRRNLQJDUHDVDQGIDFWRULHVLQZKLFKWKH
SURSHUWLHVRISODVWLFFRXOGEHFKDQJHGDQGGDPDJHG
 6DOW\SODFHVVXFKDVWKHVHDVLGH
 :KHUHVXO¿GH JDV LVJHQHUDWHG VXFK DVD KRW VSULQJ
sewage, waste water.
 :KHUHWKHUHLVKLJKIUHTXHQF\RUZLUHOHVVHTXLSPHQW
 :KHUHWKHUHLVHPLVVLRQRIKLJKOHYHOVRI92&VLQFOXGLQJ
SKWKDODWH FRPSRXQGV IRUPDOGHK\GH HWF ZKLFK PD\
FDXVHFKHPLFDOFUDFNLQJ
WARNING
&RXOGOHDGWRGHDWKVHULRXVLQMXU\HWF
0RGHO 3RZHUVXSSO\ :LUHVSHFL¿FDWLRQV
Pipe size
WKLFNQHVV
,QGRRUXQLW Outdoor unit 5DWHG9ROWDJH )UHTXHQF\
%UHDNHU
FDSDFLW\
3RZHUVXSSO\
FRUH
,QGRRURXWGRRU
connecting wire
*DV/LTXLG
06=)+9(
06=)+9(
08=)+9(+=
08=)+9(
9 +]
$ 1.0 mm
2
4-core
1.0 mm
2
¡PP
PP
06=)+9( 08=)+9(+= $ 1.5 mm
2
06=)+9( 08=)+9(+= $ 2.0 mm
2
¡PP
PP
)+)+
Pipe length and height difference
0D[SLSHOHQJWK P
0D[KHLJKWGLIIHUHQFH P
0D[QXPEHURIEHQGV 10
5HIULJHUDQWDGMXVWPHQW$ JP
,QVXODWLRQWKLFNQHVV
8 mm
Do not install the unit by yourself (user).
,QFRPSOHWHLQVWDOODWLRQFRXOGFDXVH¿UHHOHFWULFVKRFNLQMXU\
GXHWRWKHXQLWIDOOLQJRUOHDNDJHRIZDWHU&RQVXOWWKHGHDOHU
IURPZKRP\RXSXUFKDVHGWKHXQLWRUDTXDOL¿HGLQVWDOOHU
Perform the installation securely referring to the installa-
tion manual.
,QFRPSOHWHLQVWDOODWLRQFRXOGFDXVH¿UHHOHFWULFVKRFNLQMXU\
GXHWRWKHXQLWIDOOLQJRUOHDNDJHRIZDWHU
When installing the unit, use appropriate protective equip-
ment and tools for safety.
)DLOXUHWRGRVRFRXOGFDXVHLQMXU\
Install the unit securely in a place which can bear the
weight of the unit.
,IWKHLQVWDOODWLRQORFDWLRQFDQQRWEHDUWKHZHLJKWRIWKHXQLW
WKHXQLWFRXOGIDOOFDXVLQJLQMXU\
(OHFWULFDOZRUNVKRXOGEHSHUIRUPHGE\DTXDOL¿HGH[SH-
rienced electrician, according to the installation manual.
%HVXUHWRXVHDQH[FOXVLYHFLUFXLW'RQRWFRQQHFWRWKHU
electrical appliances to the circuit.
,IWKHFDSDFLW\RIWKHSRZHU FLUFXLW LV LQVXI¿FLHQW RU WKHUH LV
LQFRPSOHWHHOHFWULFDOZRUNLWFRXOGUHVXOWLQD¿UHRUDQHOHFWULF
VKRFN
Earth the unit correctly.
Do not connect the earth to a gas pipe, water pipe, lightning rod, or
WHOHSKRQHHDUWK'HIHFWLYHHDUWKLQJFRXOGFDXVHHOHFWULFVKRFN
'RQRWGDPDJHWKHZLUHVE\DSSO\LQJH[FHVVLYHSUHVVXUH
with parts or screws.
'DPDJHGZLUHVFRXOGFDXVH¿UHRUHOHFWULFVKRFN
Be sure to cut off the main power in case of setting up the
indoor P.C. board or wiring works.
)DLOXUHWRGRVRFRXOGFDXVHHOHFWULFVKRFN
8VHWKHVSHFL¿HGZLUHVWRFRQQHFWWKHLQGRRUDQGRXWGRRU
XQLWVVHFXUHO\DQGDWWDFKWKHZLUHV¿UPO\WRWKHWHUPLQDO
block connecting sections so the stress of the wires is
QRWDSSOLHGWRWKHVHFWLRQV'RQRWH[WHQGWKHZLUHVRU
use intermediate connection.
,QFRPSOHWHFRQQHFWLQJDQGVHFXULQJFRXOGFDXVH¿UH
'RQRWLQVWDOOWKHXQLWLQDSODFHZKHUHLQÀDPPDEOHJDV
may leak.
,IJDVOHDNVDQGDFFXPXODWHVLQWKHDUHDDURXQGWKHXQLWLW
FRXOGFDXVHDQH[SORVLRQ
Do not use intermediate connection of the power cord or
WKHH[WHQVLRQFRUGDQGGRQRWFRQQHFWPDQ\GHYLFHVWR
one AC outlet.
,WFRXOGFDXVHD¿UHRUDQHOHFWULFVKRFNGXHWRGHIHFWLYHFRQ-
WDFWGHIHFWLYHLQVXODWLRQH[FHHGLQJWKHSHUPLVVLEOHFXUUHQW
etc.
%HVXUHWRXVHWKHSDUWVSURYLGHGRUVSHFL¿HGSDUWVIRU
the installation work.
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supply plug is pushed completely into the outlet.
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Attach the electrical cover to the indoor unit and the
service panel to the outdoor unit securely.
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(R410A) enters the refrigerant circuit.
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Do not discharge the refrigerant into the atmosphere. If
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Use appropriate tools and piping materials for installation.
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appropriate tools or materials and incomplete installation could
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When installing the unit, securely connect the refrigerant
pipes before starting the compressor.
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this manual.
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The unit shall be installed in accordance with national
wiring regulations.
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lation place.
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Perform the drainage/piping work securely according to
the installation manual.
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outdoor unit.
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Do not install the outdoor unit where small animals may
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Required Tools for Installation
Phillips screwdriver
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Scale
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65 mm hole saw
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Pipe cutter with reamer
Model names are indicated in 1-3.
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installation manual of the multi unit for
outdoor unit installation.
ENGLISH
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INSTALLATION MANUAL
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Mitsubishi Electric MUZ-FH50VE Specifications

General IconGeneral
Cooling Capacity5.0 kW
Heating Capacity6.0 kW
Seasonal Coefficient of Performance (SCOP)4.7
Power Supply220-240 V, 50 Hz
RefrigerantR32
Weight (Outdoor Unit)55 kg
Outdoor Unit Sound Pressure Level52 dB(A)
Indoor Unit Sound Pressure Level (Cooling)21 dB(A)

Summary

Before Installation

Safety Precautions

Essential safety guidelines to follow before and during air conditioner installation to prevent accidents.

Installation Location Selection

Guidelines for choosing optimal indoor, outdoor, and remote controller locations for proper operation and maintenance.

Specifications

Technical specifications including voltage, frequency, breaker capacity, and wire/pipe sizes for installation.

Installation Diagram

Indoor Unit Installation

Detailed steps for installing the indoor unit, including fixing the plate, drilling holes, and connecting wires.

Pipe Forming and Drain Piping

Instructions for shaping refrigerant pipes and setting up drain piping for both rear/downward and left/left-rear configurations.

Outdoor Unit Installation

Connecting Wires for Outdoor Unit

Procedure for securely connecting the indoor/outdoor unit connecting wire and power supply cord to the outdoor unit.

Flaring Work

Steps for correctly cutting copper pipes and performing flaring for secure refrigerant pipe connections.

Pipe Connection

Guidance on connecting refrigerant pipes to indoor and outdoor units using specified torque and insulation.

Insulation and Taping

Instructions for insulating and taping refrigerant piping to prevent condensation and protect against burns/frostbite.

Purging, Leak Test, and Test Run

Purging Procedures and Leak Test

Steps for vacuumizing the system and performing a leak test to ensure refrigerant circuit integrity.

Test Run

Procedure for operating the unit to confirm correct functionality after installation.

Auto Restart Function

Explanation of the auto restart feature and how it operates during power interruptions.

Setting the Installation Position

How to set the indoor unit's installation position for optimal remote controller reception.

Explanation to the User

Guidance on explaining the air conditioner's operation and features to the end-user.

Relocation and Maintenance

Removing and Installing the Panel Assembly

Procedure for safely removing and reinstalling the unit's panel assembly for maintenance access.

Removing the Indoor Unit

Steps for detaching the indoor unit from its mounting plate for relocation or servicing.

Pumping Down

Procedure for safely pumping down refrigerant before relocating or disposing of the unit.

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