Daikin FBQ100D_RZQSG100L9V [13/52] Connecting the refrigerant piping
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Daikin FBQ100D_RZQSG100L9V [13/52] Connecting the refrigerant piping

Daikin FCQHG71F_RZQG71L9V [13/52] Connecting the refrigerant piping
6Installation
Installerreferenceguide
13
RZQG71~140L_V1+Y1+RZQSG100~140L_V1+Y1
Splitsystemairconditioners
4P3855221–2014.08
Drainholes(dimensionsinmm)
A
B
B
C
D
E
160 160620
36
61
262
416
595
285
279
260
161
(345~355)
A Dischargeside
B Distancebetweenanchorpoints
C Bottomframe
D Drainholes
E Knockoutholeforsnow
Snow
Inregionswithsnowfall,snowmightbuildupandfreezebetweenthe
heat exchanger and the external plate. This might decrease the
operatingefficiency.Topreventthis:
1 Drill(a,4×)andremovetheknockouthole(b).
b

a b
4× Ø6 mm
2 Removethe burrs, and paint the edges and areas around the
edgesusingrepairpainttopreventrusting.
6.3.6 Topreventtheoutdoorunitfromfalling
over
Incasetheunitisinstalledinplaceswherestrongwind can tilt the
unit,takefollowingmeasure:
Connectcables(fieldsupply)asshown:
4×
6.4 Connectingtherefrigerantpiping
6.4.1 Aboutconnectingtherefrigerantpiping
Beforeconnectingtherefrigerantpiping
Makesuretheoutdoorandindoorunitaremounted.
Typicalworkflow
Connectingtherefrigerantpipinginvolves:
▪ Connectingtherefrigerantpipingtotheoutdoorunit
▪ Connectingtherefrigerantpipingtotheindoorunit
▪ Installingoiltraps
▪ Insulatingtherefrigerantpiping
▪ Keepinginmindtheguidelinesfor:
▪ Pipebending
▪ Flaringpipeends
▪ Brazing
▪ Usingthestopvalves
6.4.2 Precautionswhenconnectingthe
refrigerantpiping
INFORMATION
Also read the precautions and requirements in the
followingchapters:
▪ Generalsafetyprecautions
▪ Preparation
DANGER:RISKOFBURNING
CAUTION
▪ DoNOTusemineraloilonflaredpart.
▪ NEVER install a drierto this R410A unit to guarantee
its lifetime. The drying material may dissolve and
damagethesystem.
NOTICE
Take the following precautions on refrigerant piping into
account:
▪ Avoid anything but the designated refrigerant to get
mixedintotherefrigerantcycle(e.g.air).
▪ OnlyuseR410Awhenaddingrefrigerant.
▪ Onlyuseinstallationtools(e.g.manifoldgaugeset)that
are exclusively used for R410A installations to
withstandthepressureandtopreventforeignmaterials
(e.g. mineral oils and moisture) from mixing into the
system.
▪ Installthe piping sothat the flareisNOT subjected to
mechanicalstress
▪ Protectthepipingasdescribedinthefollowingtableto
preventdirt,liquidordustfromenteringthepiping.
▪ Usecautionwhenpassingcoppertubesthroughwalls
(seefigurebelow).
Unit Installationperiod Protectionmethod
Outdoorunit >1month Pinchthepipe
<1month Pinchortapethepipe
Indoorunit Regardlessofthe
period
INFORMATION
Do NOT open the refrigerant stop valve before checking
therefrigerantpiping.Whenyouneedtochargeadditional
refrigerantit is recommendedto open therefrigerant stop
valveaftercharging.

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