Daikin FBQ125D_RZQG125L9V [7/52] Combining units and options
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Daikin FBQ125D_RZQG125L9V [7/52] Combining units and options

Daikin FBQ100D_RZQG100L9V [7/52] Combining units and options
5Preparation
Installerreferenceguide
7
RZQG71~140L_V1+Y1+RZQSG100~140L_V1+Y1
Splitsystemairconditioners
4P3855221–2014.08
4.3 Combiningunitsandoptions
4.3.1 Possibleoptionsfortheoutdoorunit
Refrigerantbranchkit
Whenconnectingmultipleindoorunitstotheoutdoorunit,youneed
oneormorerefrigerantbranchkits.Theoutdoorindoorcombination
determineswhichandhowmanyrefrigerantbranchkitstouse.
Layout RZQ(S)G_Y1+
FCQG35~71/FCQHG71
Other
outdoorindoor
combinations
Twin KHRQ58T KHRQ22M20TA
Triple KHRQ58H KHRQ127H
Doubletwin KHRQ58T(3×) KHRQ22M20TA(3×)
For more selection details, see the catalogues. For installation
instructions,seetheinstallationmanualoftherefrigerantbranchkit.
Bottomplateheater(EKBPH140L7)(onlyforRZQG)
▪ Preventsfreezeupofthebottomplate.
▪ Recommended in areas with low ambient temperature and high
humidity.
▪ If you install EKBPH140L7 in combination with RZQG_V1, you
alsohavetoinstallthedemandadaptorkit.
▪ For installation instructions, see the installation manual of the
bottomplateheater.
Demandadaptorkit
Canbeusedforthefollowing:
▪ Lownoise:Tolowertheoperationsoundoftheoutdoorunit.
▪ Idemand function: To limit the power consumption from the
system(example:budgetcontrol,limitpowerconsumptionduring
peakmoments…).
▪ Incombinationwithabottomplateheater(seeabove).
Model Demandadaptorkit
RZQ(S)G_Y1 KRP58M51
RZQ(S)G_V1 KRP58M51MK
For installation instructions, see the installation manual of the
demandadaptorkit.
5 Preparation
5.1 Overview:Preparation
Thischapterdescribeswhatyouhavetodoandknowbeforegoing
onsite.
Itcontainsinformationabout:
▪ Preparingtheinstallationsite
▪ Preparingtherefrigerantpiping
▪ Preparingtheelectricalwiring
5.2 Preparinginstallationsite
DoNOTinstalltheunitinplacesoftenusedasworkplace.Incase
of construction works (e.g. grinding works) where a lot of dust is
created,theunitmustbecovered.
Choosetheinstallationlocationwithsufficientplaceforcarryingthe
unitinandoutofthesite.
5.2.1 Installationsiterequirementsofthe
outdoorunit
INFORMATION
Alsoreadthefollowingrequirements:
▪ Generalinstallationsiterequirements.Seethe"General
safetyprecautions"chapter.
▪ Service space requirements. See the "Technical data"
chapter.
▪ Refrigerant piping requirements (length, height
difference).Seefurtherinthis"Preparation"chapter.
Mindthefollowing:
▪ Selectaplacewhereraincanbeavoidedasmuchaspossible.
▪ Take care that in the event of a water leak, water cannot cause
anydamagetotheinstallationspaceandsurroundings.
▪ Choosealocationwherethehot/coldairdischargedfromtheunit
ortheoperationnoise,willNOTdisturbanyone.
▪ Heatexchanger finsaresharp andinjury ispossible. Choosean
installationlocationwhere thereisno riskforinjury (especiallyin
areaswherechildrenplay).
DoNOTinstalltheunitinthefollowingplaces:
▪ Soundsensitiveareas(e.g.nearabedroomandthelike),sothat
theoperationnoisewillcausenotrouble.
Note: If the sound is measured under actual installation
conditions, the measured value might be higher than the sound
pressurelevelmentionedinSoundspectruminthedatabookdue
toenvironmentalnoiseandsoundreflections.
INFORMATION
Thesoundpressurelevelislessthan70dB(A).
▪ In places where a mineral oil mist, spray or vapour may be
presentin the atmosphere. Plasticparts may deteriorateand fall
offorcausewaterleakage.
It is NOT recommended to install the unit in the following places
becauseitmayshortenthelifeoftheunit:
▪ incoastalareasorotherplaceswheretheaircontainshighlevels
ofsalt.Corrosionmayoccur,
▪ wherethevoltagefluctuatesalot,
▪ invehiclesorvessels,
▪ whereacidicoralkalinevapourispresent.
When the outdoor unit is subject to windy and/or low ambient
temperatures,mindthefollowingguidelines:
Strongwinds(≥18km/h)blowingagainsttheoutdoorunit’sairoutlet
causesshortcircuit(suctionofdischargeair).Thismayresultin:
▪ deteriorationoftheoperationalcapacity;
▪ frequentfrostaccelerationinheatingoperation;
▪ disruption of operation due to decrease of low pressure or
increaseofhighpressure;
▪ a broken fan (if a strong wind blows continuously on the fan, it
maystartrotatingveryfast,untilitbreaks).
It is recommended to install a baffle plate when the air outlet is
exposedtowind.
Itisrecommendedtoinstalltheoutdoorunitwiththeairinletfacing
thewallandNOTdirectlyexposedtothewind.

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