Toshiba RAS-10J2AVG-EE - Draining The Water; Refrigerant Piping Connection

EN
Draining the Water
•Holesareprovidedonthebaseplateoftheoutdoorunittoensurethatthe
defrostwaterproducedduringheatingoperationsisdrainedo󰀨e󰀩ciently.
Ifacentralizeddrainisrequiredwheninstallingtheunitonabalconyor
wall,followthestepsbelowtodraino󰀨thewater.
1.Proceedwithwater-proofingbyinstallingthewater-proofrubbercapsin
the2elongatedholesonthebaseplateoftheoutdoorunit.[Howtoinstall
thewater-proofrubbercaps]
1)Placefourfingersintoeachcap,andinsertthecapsintothewater
drainholesbypushingthemintoplacefromtheundersideofthebase
plate.
2)Pressdownontheoutercircumferencesofthecapstoensurethat
theyhavebeeninsertedtightly.
(Waterleaksmayresultifthecapshavenotbeeninsertedproperly,if
theiroutercircumferencesliftuporthecapscatchonorwedgeagainst
something.)
Base plate
Drain nipple
Water-proof rubber caps
(supplied with the outdoor unit)
2. Installthedrainnippleandacommerciallyavailabledrainhose(with
16mminsidediameter),anddraino󰀨thewater.
(Forthepositionwherethedrainnippleisinstalled,refertotheinstallation
diagramoftheindoorandoutdoorunits.)
•Checkthattheoutdoorunitishorizontal,androutethedrainhoseata
downwardslopedanglewhileensuringthatitisconnectedtautly.
Commercially available drain hose
Base plate
Drain nipple
Donotuseordinarygardenhose,butonecanflattenandprevenwater
fromdraining.
Refrigerant Piping Connection
Flaring
1.Cutthepipewithapipecutter.
90°
Obliquity
Roughness Warp
2.Insertaflarenutintothepipeandflarethepipe.
• Projection margin in flaring : A (Unit : mm)
RIDGID(clutchtype)
Outer dia.of copper pipe R32 tool used
Conventional tool
used
Ø6.35 0to0.5 1.0to1.5
Ø9.52 0to0.5 1.0to1.5
Ø12.70 0to0.5 1.0to1.5
Pipesthickness 0.8mmormore
Die
A
Pipe
IMPERIAL(wingnuttype)
Outer dia.of copper pipe R32
Ø6.35 1.5to2.0
Ø9.52 1.5to2.0
Ø12.70 2.0to2.5
Pipesthickness 0.8mmormore
CAUTION
•Donotscratchtheinnersurfaceoftheflaredpartwhenremovingburrs.
•Flareprocessingundertheconditionofscratchesontheinnersurface
offlareprocessingpartwillcauserefrigerantgasleak.
Tightening connection
Alignthecentersoftheconnectingpipesandtightentheflarenutasfaras
possiblewithyourfingers.Thentightenthenutwithaspannerandtorque
wrenchasshowninthefigure.
Half union Flare nut
Externally
threaded side
Internally
threaded side
Use a wrench to secure. Use a torque wrench to tighten.
CAUTION
Donotapplyexcesstorque.Otherwise,thenutmaycrackdependingon
theconditions.
(Unit:N·m)
Outer dia.of copper pipe Tightening torque
Ø6.35mm 16to18(1.6to1.8kgf·m)
Ø9.52mm 30to42(3.0to4.2kgf·m)
Ø12.70mm 50to62(5.0to6.2kgf·m)
• Tightening torque of flare pipe connections
Flare at
indoor unit side
Flare at
outdoor unit side
TheoperatingpressureofR32is
higherthanthatofR22
(approx.1.6times).Itistherefore
necessarytofirmlytightentheflarepipe
connectingsections(whichconnectthe
indoorandoutdoorunits)uptothe
specifiedtighteningtorque.Incorrect
connectionsmaycausenotonlya
gasleakage,butalsodamagetothe
refrigerationcycle.
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1122950109_S04_182x257_52p_S_p70_181217_EN+TR+RU.indd 11 12/25/2018 10:46:55 AM