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SPLIT-TYPE AIR CONDITIONERS
INSTALLATION MANUAL
1. BEFORE INSTALLATION
MEANINGS OF SYMBOLS DISPLAYED ON INDOOR UNIT AND/OR OUTDOOR UNIT
WARNING
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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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■ Perform the installation securely referring to 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 which can bear
the weight of the unit.
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experienced electrician, according to the installation
manual. Be sure to use an exclusive circuit. Do not
connect other electrical appliances to the circuit.
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■ Earth the unit correctly.
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■ Do not damage the wires by applying excessive
pressure with parts or screws.
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■ Be sure to cut off the main power in case of setting
up the indoor P.C. board or wiring works.
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the terminal block connecting sections so the stress
of the wires is not applied to the sections. Do not
extend the wires, or use intermediate connection.
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gas may leak.
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■ Do not use intermediate connection of the power
cord or the extension cord and do not connect many
devices to one AC outlet.
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for the installation work.
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REFRIGERANT
Model names are indicated in 1-3.
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■ When plugging the power supply plug into the
outlet, make sure that there is no dust, clogging,
or loose parts in both the outlet and the plug. Make
sure that the power supply plug is pushed com-
pletely 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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■ When installing, relocating, or servicing the unit,
make sure that no substance other than the speci-
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■ Do not discharge the refrigerant into the atmos-
phere. If refrigerant leaks during installation, ven-
tilate the room. Check that the refrigerant does not
leak after installation has been completed.
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■ Use appropriate tools and piping materials for instal-
lation.
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■ When pumping down the refrigerant, stop the com-
pressor before disconnecting the refrigerant pipes.
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■ When installing the unit, securely connect the re-
frigerant pipes before starting the compressor.
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WARNING
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■ The unit shall be installed in accordance with na-
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■ Do not use means to accelerate the defrosting pro-
■ The appliance shall be stored in a room without
■ Do not pierce or burn.
■ Be aware that refrigerants may not contain an odour.
■ Pipe-work shall be protected from physical damage.
■ The installation of pipe-work shall be kept to a
■ Compliance with national gas regulations shall be
■ Keep any required ventilation openings clear of
■ Do not install the indoor unit equipped with the Wi-Fi
■ Do not use the indoor unit equipped with the Wi-Fi
■ This indoor unit equipped with the Wi-Fi interface
Required Tools for Installation
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in this manual.
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tional wiring regulations.
equipment, completely remove all of the refrigerant
from the air conditioner and ensure that the area is
well-ventilated.
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cess or to clean, other than those recommended by
the manufacturer.
continuously operating ignition sources (for exam-
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operating electric heater).
minimum.
observed.
obstruction.
interface nearby the automatic control devices such
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interface nearby the medical electrical equipment
or people who have a medical device such as a
cardiac pacemaker or an implantable cardioverter-
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should be installed and operated with a minimum
distance of 20 cm between the device and the user
or bystanders.
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Table of Contents
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Summary of Contents for Mitsubishi Electric MSZ-LN18VG
- Page 1 Required Tools for Installation -* %+ REFRIGERANT 3KLOOLSV VFUHZGULYHU PP KH[DJRQDO ZUHQFK /HYHO )ODUH WRRO IRU 5 5$ 6FDOH *DXJH PDQLIROG IRU 5 5$ Model names are indicated in 1-3. 8WLOLW\ NQLIH RU VFLVVRUV 9DFXXP SXPS IRU 5 5$ :KHQ LQVWDOOLQJ PXOWL XQLWV UHIHU WR WKH PP KROH VDZ &KDUJH KRVH IRU 5 5$ SPLIT-TYPE AIR CONDITIONERS...
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Page 2: Selecting The Installation Location
CAUTION &RXOG OHDG WR VHULRXV LQMXU\ LQ SDUWLFXODU HQYLURQPHQWV ZKHQ RSHUDWHG LQFRUUHFWO\ ■ Install an earth leakage breaker depending on the ■ Do not install the outdoor unit where small ani- ■ To prevent damage from static electricity, touch installation place. mals may live. - Page 3 1-4. INSTALLATION DIAGRAM ACCESSORIES PARTS TO BE PROVIDED AT YOUR SITE &KHFN WKH IROORZLQJ SDUWV EHIRUH LQVWDOODWLRQ ,QGRRU XQLW! ,QVWDOODWLRQ SODWH $ ,QGRRURXWGRRU XQLW FRQQHFWLQJ ZLUH Note: 3ODFH LQGRRURXWGRRU XQLW FRQQHFWLQJ ZLUH $ DQG ,QVWDOODWLRQ SODWH ¿[LQJ VFUHZ % ([WHQVLRQ SLSH î...
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Page 4: Indoor Unit Installation
2. INDOOR UNIT INSTALLATION 2-1. FIXING OF INSTALLATION PLATE 2-4. PIPE FORMING AND DRAIN PIPING )HOW WDSH ‡ )LQG D VWUXFWXUDO PDWHULDO VXFK DV D VWXG LQ WKH ZDOO DQG ¿[ LQVWDOODWLRQ SODWH KRUL]RQ Pipe Forming 3LSLQJ WDSH * WDOO\ E\ WLJKWHQLQJ WKH ¿[LQJ VFUHZV ¿UPO\ ‡... - Page 5 2-5. ASSEMBLING OF CORNER BOX ‡ 7KH FRUQHU ER[HV DUH VWRZHG LQ WKH FXVKLRQLQJ PDWHULDOV RQ WKH ULJKW DQG OHIW VLGHV ‡ &KHFN WKH PDUNLQJV 5,*+7/()7 RQ WKH SDUWV DQG XVH WKH DSSURSULDWH SDUWV (DFK ULJKW DQG OHIW FRUQHU ER[ LV DVVHPEOHG IURP SDUWV $UUDQJH WKH WZR SDUWV VR WKDW WKH PDUNV DOLJQ 0RYH SDUW DERXW GHJUHHV DURXQG WKH KLQJH SRLQW \RX KDYH MXVW FUHDWHG WR SXW WKH SDUWV WRJHWKHU...
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Page 6: Outdoor Unit Installation
3. OUTDOOR UNIT INSTALLATION $ PP 7LJKWHQLQJ WRUTXH 3-1. CONNECTING WIRES FOR OUTDOOR UNIT &OXWFK 2SHQ WKH VHUYLFH SDQHO 3LSH GLDPHWHU &OXWFK W\SH :LQJ QXW W\SH WRRO /RRVHQ WHUPLQDO VFUHZ DQG FRQQHFW LQGRRURXWGRRU XQLW FRQQHFWLQJ ZLUH $ IURP WKH PP PP WRRO IRU... -
Page 7: Purging Procedures, Leak Test, And Test Run
4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN 4-1. PURGING PROCEDURES AND LEAK TEST 4-2. TEST RUN 5HPRYH VHUYLFH SRUW FDS RI VWRS YDOYH RQ WKH VLGH RI WKH RXWGRRU XQLW JDV SLSH 7KH VWRS ,QVHUW SRZHU VXSSO\ SOXJ LQWR WKH SRZHU RXWOHW DQGRU WXUQ RQ WKH YDOYHV DUH IXOO\ FORVHG DQG FRYHUHG LQ FDSV LQ LQLWLDO VWDWH EUHDNHU &RQQHFW JDXJH PDQLIROG YDOYH DQG YDFXXP SXPS WR VHUYLFH SRUW RI VWRS YDOYH RQ WKH JDV... -
Page 8: Relocation And Maintenance
5. CONNECTION SETUP OF THE Wi-Fi INTERFACE 7KLV SURGXFW LV HTXLSSHG ZLWK WKH :L)L ,QWHUIDFH DV VWDQGDUG 5HIHU WR WKH 6(783 48,&. 5()(5(1&( *8,'( DQG 23(5$7,1* ,16758&7,216 SURYLGHG ZLWK WKH LQGRRU XQLW IRU FRQQHFWLRQ ZLWK WKH URXWHU 6. RELOCATION AND MAINTENANCE 6-1.