Daikin FTXS-L Series - Page 82

EDUS091128 Installation Manual
Split Type Air Conditioners FTXS-L / FDXS-L Series 81
Refrigerant Piping Work
5GGVJGKPUVCNNCVKQPOCPWCNUWRRNKGFYKVJVJGQWVFQQTWPKV
1.
Flaring the pipe end
%WVVJGRKRGGPFYKVJCRKRGEWVVGT
4GOQXGDWTTUYKVJVJGEWVUWTHCEGHCEKPIFQYP-
YCTFUQVJCVVJGEJKRUFQPQVGPVGTVJGRKRG
2WVVJGƃCTGPWVQPVJGRKRG
(NCTGVJGRKRG
%JGEMVJCVVJGƃCTKPIKURTQRGTN[OCFG
A
A
(Cut exactly at right angles.) Remove burrs
Flare’s inner surface
OWUVDGƃCYHTGG
The pipe end must
DGGXGPN[ƃCTGFKPC
perfect circle.
Make sure that the
ƃCTGPWVKUƂVVGF
Check
KPOO KPOOKPOO
5GVGZCEVN[CVVJGRQUKVKQPUJQYPDGNQY
%NWVEJV[RG
(NCTGVQQNHQT4#
%NWVEJV[RG4KIKFV[RG 9KPIPWVV[RG+ORGTKCNV[RG
%QPXGPVKQPCNƃCTGVQQN
Flaring
Die
WARNING
r&QPQVWUGOKPGTCNQKNQPƃCTGFRCTV
r2TGXGPVOKPGTCNQKNHTQOIGVVKPIKPVQVJGU[UVGOCUVJKUYQWNFTGFWEGVJGNKHGVKOGQHVJGWPKVU
r0GXGTWUGRKRKPIYJKEJJCUDGGPWUGFHQTRTGXKQWUKPUVCNNCVKQPU1PN[WUGRCTVUYJKEJCTGFGNKXGTGFYKVJVJGWPKV
r0GXGTKPUVCNNCFTKGTVQVJKU4#WPKVKPQTFGTVQIWCTCPVGGKVUNKHGVKOG
r6JGFT[KPIOCVGTKCNOC[FKUUQNXGCPFFCOCIGVJGU[UVGO
+PEQORNGVGƃCTKPIOC[ECWUGTGHTKIGTCPVICUNGCMCIG
2.
Refrigerant piping
6QRTGXGPVICUNGCMCIGCRRN[TGHTKIGTCVKQPOCEJKPGQKNQPDQVJKPPGT
CPFQWVGTUWTHCEGUQHVJGƃCTG7UGTGHTKIGTCVKQPQKNHQT4#
#NKIPVJGEGPVGTUQHDQVJƃCTGUCPFVKIJVGPVJGƃCTGPWVUQTVWTPU
D[JCPF6JGPVKIJVGPVJGOHWNN[YKVJVJGVQTSWGYTGPEJGU
r7UGVQTSWGYTGPEJGUYJGPVKIJVGPKPIVJGƃCTGPWVUVQRTGXGPV
FCOCIGVQVJGƃCTGPWVUCPFGUECRKPIICU
(NCTGPWVVKIJVGPKPIVQTSWG
)CUUKFG.KSWKFUKFG
KPEJOOKPEJOO
HVrND
0rO
HVrND
0rO
CAUTION
r1XGTVKIJVGPKPIOC[FCOCIGVJGƃCTGCPFECWUGNGCMU
3) #HVGTVJGYQTMKUƂPKUJGFOCMGUWTGVQ
check that there is no gas leak.
Torque wrench
Piping union
Flare nut
Spanner
Do not apply refrigeration
oil to the outer surface.
Flare nut
Apply refrigeration
oil to the inner
UWTHCEGQHVJGƃCTG
Do not apply refrigeration oil to
VJGƃCTGPWVVQCXQKFVKIJVGPKPI
YKVJGZEGUUKXGVQTSWG
4) After checking for gas leaks, be sure to insulate the pipe connections.
r+PUWNCVGWUKPIVJGKPUWNCVKQPHQTƂVVKPIKPENWFGFYKVJVJGNKSWKFCPFICURKRGU$GUKFGUOCMGUWTGVJGKPUWNCVKQPHQTƂVVKPI
QPVJGNKSWKFCPFICURKRKPIJCUKVUUGCOUHCEKPIWR
6KIJVGPDQVJGFIGUYKVJENCOR
r(QTVJGICURKRKPIYTCRVJGOGFKWOUGCNKPIRCFQXGTVJGKPUWNCVKQPHQTƂVVKPIƃCTGPWVRCTV
Gas pipe
Liquid pipe
Piping insulation
material (main unit)
Attach to base
Flare nut connection
Turn seams up
+PUWNCVKQPHQTƂVVKPI
(accessory)
Clamp
Piping insulation material
(Field supplied)
Gas Piping Insulation Procedure
(accessory)
Main unit
Clamp (accessory)
Flare nut connection
Turn seams up
Piping insulation material
(Field supplied)
Piping insulation
material (main unit)
Attach to base
Main unit
+PUWNCVKQPHQTƂVVKPI
(accessory)
Liquid Piping Insulation Procedure
Small sealing pad
Measure the length of the gas
pipe as you will have to cover
it with the sealing tape.
(accessory)
Wrap the sealing
tape around the
gas pipe.
Main unit