Hitachi RPC-5.0FSR - Piping Connection

16
A10762300A-rev.1
Donotapply
therefrigerant
oiltothe
outsideofthe
aringpart.
(3) Usespecicarenut.
(4) Checkthattherearenoscratch,chip,
deformation,gaporatthearingpart.
(5) Applytherefrigerantoilinathinlayertothe
insideofthearingpartofthepipebefore
tighteningthearenut.Andthearenut
mustbetightenedusingtwospanners
accordingtothetighteningtorqueasshown
inthegurebelow.Thetighteningworkwill
beeasieriftighteningthearepipeinorder
oftheliquidpipe,thegaspipe.
Checktheleakageoftherefrigerantafterthe
tighteningwork.
* Iftherefrigerantoilattachestotheservice
cover,itmaycauseacrack.Payattention
nottoattach.
NOTE:
Refrigerantoiliseld-supplied.
[EtherealOilFVC50K,FVC68D,FW68H
 (IdemitsuKousanCo.Ltd.)]
Fig.5.1TighteningWorkofFlareNut
RequiredTighteningTorque (JISB8607)
PipeSize TighteningTorque
f
6.35mm (1/4) 14-18 (N-m)
f
9.52mm (3/8) 34 - 42 (N-m)
f
12.7mm (1/2) 49-61 (N-m)
f
15.88mm (5/8) 68-82 (N-m)
Tighten the are nuts according to the
specied torque. If not, it may cause the
refrigerant leakage.
mm(in.)
Diameter
(d)
A
+0
-0.4
6.35 (1/4) 9.1
9.52 (3/8) 13.2
12.7 (1/2) 16.6
15.88 (5/8) 19.7
(2) Performthearingworkasshownbelow.5.2.2 PipingConnection
(1) Opentheairinletgrilleandperformthe
connectingworkfromlowerside.
(a) Pressandslidethecoveroftheairinlet
grilleinthedirectionofthearrowwith
ngersintheholesonthecover.
(b) Removethesupportingstringfromthe
sideplate.
(c) Whiletheairinletgrilleisbeingopened,
depresstheknobsofhinge(
1
),pushthe
airinletgrilletowardarrowdirection(
2
)
andremovetheairinletgrille.
Apply Refrigerant Oil.
0.4 ~ 0.8R
fA
fd
90
o
+
2
o
45
o
+
2
o
Holes
(2 or 3 Portions
)
Air Inlet Grille
Side Plate
Supporting
String
Hinge
Depress the knob of
hinge and push the ai
r
inlet grille forward.
Depress
Push
1
2