Mitsubishi Electric MSZ-SF20VA [2/12] Beforeinstallation

Mitsubishi Electric MSZ-SF15VA [2/12] Beforeinstallation

En-1

1. BEFORE INSTALLATION

1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY

• Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY” before installing the air conditioner.

• Besuretoobservethewarningsandcautionsspeciedhereastheyincludeimportantitemsrelatedtosafety.

• Afterreadingthismanual,besuretokeepittogetherwiththeOPERATINGINSTRUCTIONSforfuturereference.

1-2. SELECTING THE INSTALLATION LOCATION

CAUTION

(Couldleadtoseriousinjuryinparticularenvironmentswhenoperatedincorrectly.)

Required Tools for Installation

Phillipsscrewdriver

Level

Scale

Utility

knifeorscissors

65mmholesaw

Torque wrench

Wrench(orspanner)

4mmhexagonalwrench

Flare tool for R410A

GaugemanifoldforR410A

VacuumpumpforR410A

ChargehoseforR410A

Pipecutterwithreamer

Do not install the unit by yourself (user).

 Incomplete installation could cause fire, electric

shock, injury due to the unitfalling, or leakage

ofwater.Consultthedealerfromwhomyoupur-

chased

theunitoraqualiedinstaller.

Perform the installation securely referring to

the installation manual.

 Incomplete installation could cause fire, electric

shock,injuryduetotheunitfalling,orleakageof

water.

When installing the unit, use appropriate pro-

tective

equipment and tools for safety.

 Failuretodosocouldcauseinjury.

Install the unit securely in a place which can

bear the weight of the unit.

If the installation location cannot bear the weight

oftheunit,theunitcouldfallcausinginjury.

n

lectrical work should be performed by a

qualied, experienced electrician, according

to the installation manual. Be sure to use an ex-

lusive circuit. Do not connect other electrical

appliances to the circuit.

 Ifthecapacityofthepowercircuitisinsufcientor

thereisincompleteelectricalwork,itcouldresult

inareoranelectricshock.

Earth the unit correctly.

 Donot connect the earth to a gas pipe, water

pipe, lightning rod ortelephone earth. Defective

earthingcouldcauseelectricshock.

n

Do not damage the wires by applying exces-

sive

pressure with parts or screws.

 Damagedwirescouldcausereorelectricshock.

n

sure to cut off the main power in case of

setting up the indoor P.C. board or wiring

works.



Failuretodosocouldcauseelectricshock.

se the specied wires to connect the indoor

and outdoor units securely and attach the

wires rmly to the terminal block connecting

ections so the stress of the wires is not ap-

plied to the sections. Do not extend the wires,

r use intermediate connection.

 Incompleteconnectingandsecuringcouldcause

re.

n

Do not install the unit in a place where inam-

mable

gas may leak.

 Ifgasleaksandaccumulatesintheareaaround

theunit,itcouldcauseanexplosion.

Do not use intermediate connection of the

power cord or the extension cord and do not

connect

many devices to one AC outlet.

 It could cause a re or an electric shock dueto

defectivecontact,defectiveinsulation,exceeding

thepermissiblecurrent,etc.

n

Be sure to use the parts provided or specied

parts

for the installation work.

 Theuseofdefectivepartscouldcauseaninjuryor

leakageofwaterduetoare,anelectricshock,the

unitfalling,etc.

n

hen 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

completely into the outlet.

 Ifthereisdust,clogging,orloosepartsonthepower

supplyplugortheoutlet,itcouldcauseelectric

shockorre.Ifloosepartsarefoundonthepower

supplyplug,replaceit.

n

Attach

the electrical cover to the indoor unit

and the service panel to the outdoor unit

securely.

If the electrical cover of the indoor unit and/or the

service panel of the outdoor unit are not attached

securely,itcouldresultinareoranelectricshock

duetodust,water,etc.

n

When

installing, relocating, or servicing the

unit, make sure that no substance other than

the specied refrigerant (R410A) enters the

refrigerant

circuit.

 Any presence of foreign substance such as air

cancauseabnormalpressureriseandmayresult

inexplosion or injury. Theuse of anyrefrigerant

otherthanthatspeciedforthesystemwillcause

mechanical failure,systemmalfunction, or unit

breakdown.Intheworstcase,thiscouldleadtoa

seriousimpedimenttosecuringproductsafety.

n

o not discharge the refrigerant into the atmos-

here. If refrigerant leaks during installation,

ventilate the room.

 Ifrefrigerantcomesincontactwithare,harmful

gascouldbegenerated.Refrigerantleakagemay

cause suffocation. Provide ventilation in accord

ance

with EN378-1.

n

Check

that the refrigerant gas does not leak

after installation has been completed.

 If refrigerantgas leaks indoors, and comes into

contactwith theflame of a fanheater,space

heater, stove, etc., harmful substances will be

generated.

n

Use

appropriate tools and piping materials for

installation.



The pressure of R410A is 1.6 times more than

R22.Notusingappropriatetoolsormaterialsand

incomplete installation could cause the pipes to

burstorinjury.

n

When

pumping down the refrigerant, stop the

compressor before disconnecting the refriger-

ant

pipes.

If the refrigerant pipes are disconnected while the

compressorisrunningandthestopvalveisopen,

air could be drawn in and the pressure in the re

rigerationcycle could become abnormally high.

Thiscouldcausethepipestoburstorinjury.

n

When

installing the unit, securely connect the

refrigerant pipes before starting the compres-

sor.



Ifthecompressorisstartedbeforetherefrigerant

pipes are connected and when the stop valve is

open, air could be drawn in and the pressurein

the refrigerationcycle could become abnormally

high.Thiscouldcausethepipestoburstorinjury.

n

Fasten a are nut with a torque wrench as

specied in this manual.

 Iffastenedtootight,aarenutmaybreakaftera

longperiodandcauserefrigerantleakage.

n

The

unit shall be installed in accordance with

national wiring regulations.

Install

an earth leakage breaker depending on

the installation place.

 If an earth leakagebreaker isnot installed,it

couldcauseelectricshock.

Perform the drainage/piping work securely ac-

cording

to the installation manual.

 Ifthereisdefectinthedrainage/pipingwork,wa-

ter

coulddropfromtheunit,soakinganddamag-

ing

household goods.

Do not touch the air inlet or the aluminum ns

the outdoor unit.

 Thiscouldcauseinjury.

Do not install the outdoor unit where small

animals may live.

 Ifsmallanimalsenterandtouchtheelectricparts

inside the unit, it could cause a malfunction,

smokeemission,orre.Also,adviseusertokeep

the area around the unit clean.

INDOOR UNIT

• Whereairowisnotblocked.

•

Wherecoolairspreadsovertheentireroom.

• Rigid wall without vibration.

• Whereitisnotexposedtodirectsunshine.Donot

expose to direct sunshine also during the period

followingunpackingtobeforeuse.

• Whereeasilydrained.

• Atadistance1mormoreawayfromyourTVand

radio.Operationoftheairconditionermayinterfere

with radio or TV reception. An amplifier may be

required for the affected device.

• Inaplaceasfarawayaspossiblefromuorescent

and incandescentlights(so the infrared remote

controlcanoperatetheairconditionernormally).

• Wheretheair ltercanbe removedandreplaced

easily.

REMOTE CONTROLLER

• Whereitiseasytooperateandeasilyvisible.

•

Where children cannot touch it.

• Selectapositionabout1.2mabovetheoorand

check that signals fromthe remote controller are

surely received by theindoor unit from thatposi

tion

(‘beep’or‘beepbeep’receivingtonesounds).

Afterthat,attachremotecontrollerholdertoapillar

orwallandinstallwirelessremotecontroller.

Note:

Inroomswhereinvertertypeuorescentlampsare

used,thesignalfromthewirelessremotecontroller

maynotbereceived.

Note:

Avoid the following places for installation where air

conditioner trouble is liable to occur.

• Whereammablegascouldleak.

• Wherethereismuchmachineoil.

• Whereoilissplashedorwheretheareaislled

withoilysmoke(suchascookingareasandfac

tories,

inwhichthepropertiesofplasticcouldbe

changedanddamaged).

• Saltyplacessuchastheseaside.

• Where sulde gas is generated such as a hot

spring.

•

Wherethereishigh-frequencyorwirelessequip-

ment.

•

WherethereisemissionofhighlevelsofVOCs,

including phthalate compounds, formaldehyde,

etc.,whichmaycausechemicalcracking.

WARNING

(Couldleadtodeath,seriousinjury,etc.)

ENGLISH

Thisinstallationmanualde-

scribesonlyfortheindoorunit.

RefertotheMXZtypemanualfor

outdoor unit set up.

CONTENTS

1. BEFORE INSTALLATION ..................................1

2. INDOOR UNIT INSTALLATION .........................3

3.

PURGINGPROCEDURES,LEAKTEST,AND

TEST RUN .........................................................5

4.

RELOCATIONANDMAINTENANCE ................5

English is

original.

JG79A682H01_en.indd 1 2013/01/28 (月) 午後 4:40:52

Mitsubishi Electric MSZ-SF20VA [2/12] Beforeinstallation

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