1. Since the back to the wind box, nice 2. A long connecting pipe, high drop 3. Freedom of choice back to the wind mode,

Model		G-51DW/GS3		GR-51DW/DGS3		G-72DW/GS3		GR-72DW/DGS3		G-72DW/GS3-S		GR-72DW/DGS3-S
Cooling Capacity(KW)		5.1		5.1		7.2		7.2		7.2		7.2
heating Capacity(KW)		/		5.6(+1.6)		/		7.9(+2.2)		/		7.9(+2.2)
Cooling rated power(KW)		1.9		1.9		2.72		2.72		2.75		2.75
heating rated power(KW)		/		1.75(+1.6)		/		2.5(+2.2)		/		2.48(+2.2)
		220V ∼/50Hz								380V 3N∼/50Hz
Standard Air Volume(m3/h)		950		950		1200		1200		1200		1200
Machine external static pressurePa		50/80		50/80		50/80		50/80		50/80		50/80
Noise	indoor dB(A)	47		47		49		49		49		49
	outdoor dB(A)	55		55		60		60		60		60
size	inddor (mm)	890×724×290				890×724×290				890×724×290
	outdoor (mm)	800×300×590				800×300×690				800×300×690
Weight	indoor (kg)	30		31		32		33		32		32
	outdoor (kg)	44		45		55		56		56		56
Refrigerant piping	Gas Side(mm)	φ6.35	φ7.94	φ6.35	φ7.94	φ9.52	φ9.52	φ9.52	φ9.52	φ9.52	φ9.52	φ9.52	φ9.52
	Liquid side(mm)	φ12.7	φ15.88	φ12.7	φ15.88	φ15.88	φ19.05	φ15.88	φ19.05	φ15.88	φ19.05	φ15.88	φ19.05
	Piping up(m)	15	25	15	25	20	30	20	30	20	30	20	30
	Inside and outside the machine drop(m)	10				15				15

ceiling conceal ducted air conditioner for commercial