FTXS Installation Manual
Table Of Contents
6 ■English
Preparation before Installation
•Attachment methods of metal plate electrical wiring cover
Attachthemetalplateelectricalwiringcoverasshownbelow.
1)Leanthemetalplateelectricalwiringcoverasshowninthegureandattachtab(1)onthelowersidetotheelectrical
wiringbox.
2)Attachtab(2)onthelowersideofthemetalplateelectricalwiringcover.
Tab (1)
Tab (2)
Tab (1)
3)Pushintheupperpartofthemetalplateelectricalwiringcoverandattachthe3tabs.
Ta b
CAUTION
• Make sure that the shaded part ( ) will
not go inside the electrical wiring box.
Refrigerant Piping Work
With a multi indoor unit
, install as described in the installation manual supplied with the Multi outdoor unit.
1. Flaring the pipe end
1)Cutthepipeendwithapipecutter.
2)Removeburrswiththecutsurfacefacingdownward
sothatthechipsdonotenterthepipe.
3)Putthearenutonthepipe.
4)Flarethepipe.
5)Checkthatthearingisproperlymade.
Set exactly at the position shown below.
A
Flaring
Die
A
0-0.020 inch (0-0.5mm)
Clutch-type
Flare tool for R410A
0.039-0.059 inch (1.0-1.5mm)
Clutch-type (Rigid-type)
0.059-0.079 inch (1.5-2.0mm)
Wing-nut type (Imperial-type)
Conventional flare tool
(Cut exactly at
right angles.)
Remove burrs.
Check
Flare’s inner surface
must be flaw-free.
The pipe end must
be evenly flared in a
perfect circle.
Make sure that the
flare nut is fitted.
WARNING
•Donotusemineraloilonaredpart.
•Preventmineraloilfromgettingintothesystemasthiswouldreducethelifetimeoftheunits.
•Neverusepipingwhichhasbeenusedforpreviousinstallations.Onlyusepartswhicharedeliveredwiththeunit.
•NeverinstalladriertothisR410Aunitinordertoguaranteeitslifetime.
•Thedryingmaterialmaydissolveanddamagethesystem.
•Incompletearingmaycauserefrigerantgasleakage.
01_EN_3P297301-1.indd 6 10/20/2011 2:38:27 PM