Advantage Air
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Air conditioning guides and technical data

Flexible Duct Sizing Guide

MAX RECOMMENDED AIR QUANTITY (l/s)	FLEXIBLE DUCT DIA (mm)
44 l/S	Ø 150
92 l/S	Ø 200
170 l/S	Ø 250
275 l/S	Ø 300
385 l/S	Ø 350
503 l/S	Ø 400
636 l/S	Ø 450
785 l/S	Ø 500
950 l/S	Ø 550

Streemline Diffuser Sizing

MODEL NO.	NOMINAL SIZE (mm)	MAX RECOMMENDED AIR QUANTITY (l/s)	FLEXIBLE DUCT DIA (mm)
SL2WS15	280x140	44 l/S	Ø 150
SL2WS20	280x140	92 l/S	Ø 200
SL2WL20	360x180	92 l/S	Ø 200
SL2WL25	360x180	170 l/S	Ø 250
SL2WL30	360x180	275 l/S	Ø 300
SL3020	280x280	92 l/S	Ø 200
SL3025	280x280	170 l/S	Ø 250
SL3030	280x280	275 l/S	Ø 300
SL4030	360x360	275 l/S	Ø 300
SL4035	360x360	385 l/S	Ø 350
SL4040	360x360	503 l/S	Ø 400
SL5440	540x360	503 l/S	Ø 400
SL5445	540x360	636 l/S	Ø 450
SL5450	540x360	785 l/S	Ø 500
SL5455	540x360	950 l/S	Ø 550

Silhouette Diffuser Sizing

MODEL NO.	NOMINAL SIZE (mm)	MAX RECOMMENDED AIR QUANTITY (l/s)	FLEXIBLE DUCT DIA (mm)
ST30	280x280	92 l/S	Ø 200
ST30	280x280	170 l/S	Ø 250
ST30	280x280	275 l/S	Ø 300
ST60	Half T Bar	92 l/S	Ø 200
ST60	Half T Bar	170 l/S	Ø 250
ST60	Half T Bar	275 l/S	Ø 300
ST60	Half T Bar	385 l/S	Ø 350
ST60	Half T Bar	503 l/S	Ø 400

Sunline Diffuser Sizing (Discontinued)

MODEL NO.	NOMINAL SIZE (mm)	MAX RECOMMENDED AIR QUANTITY (l/s)	FLEXIBLE DUCT DIA (mm)
SUN20	Ø 200	92 l/S	Ø 200
SUN25	Ø 250	170 l/S	Ø 250
SUN30	Ø 300	275 l/S	Ø 300

Sunline Diffuser Sizing

MODEL NO.	NOMINAL SIZE (mm)	MAX RECOMMENDED AIR QUANTITY (l/s)	FLEXIBLE DUCT DIA (mm)
SJ15	Ø 150	44 l/S	Ø 150
SJ20	Ø 200	92 l/S	Ø 200

Floorline Grille Sizing

MODEL NO.	NOMINAL SIZE (mm)	MAX RECOMMENDED AIR QUANTITY (l/s)	FLEXIBLE DUCT DIA (mm)
FL15	310x100	44 l/S	Ø 150
FL20	310x100	92 l/S	Ø 200

Linear Elite Diffuser Sizing

MODEL NO.	NOMINAL SIZE (mm)	MAX RECOMMENDED AIR QUANTITY (l/s)	FLEXIBLE DUCT DIA (mm)
LIN20	1200x100	92 l/S	Ø 200
LIN25	1200x100	170 l/S	Ø 250

Baby Linear Grille Diffuser Sizing

MODEL NO.	NOMINAL SIZE (mm)	MAX RECOMMENDED AIR QUANTITY (l/s)	FLEXIBLE DUCT DIA (mm)
BLIN20	560x83	92 l/S	Ø 200
BLIN25	560x83	150 l/S	Ø 250

Purtech Return Air Grille

MODEL NO.	NOMINAL SIZE (mm)	MAX RECOMMENDED AIR QUANTITY (l/s)	FLEXIBLE DUCT DIA (mm)
PUR9040	900x400	184 l/S	2 x Ø 200
PUR9040	900x400	340 l/S	2 x Ø 250
PUR9040	900x400	550 l/S	2 x Ø 300
PUR7555	750x550	636 l/S	2 x Ø 450
PUR1260	1200x600	770 l/S	2 x Ø 350
PUR1260	1200x600	1006 l/S	2 x Ø 400

Slimline Return Air Grille

MODEL NO.	NOMINAL SIZE (mm)	MAX RECOMMENDED AIR QUANTITY (l/s)	FLEXIBLE DUCT DIA (mm)
HRAG	550x400	92 l/S	Ø 200
HRAG	550x400	170 l/S	Ø 250
HRAG	550x400	275 l/S	Ø 300
HRAG	550x400	385 l/S	Ø 350

Door grille Sizing

SIZE (mm)	MAX RECOMMENDED AIR QUANTITY (l/s)
600x150	120 l/s
600x200	155 l/s
600x250	190 l/s
600x300	235 l/s
600x350	275 l/s
600x400	315 l/s
600x450	350 l/s
600x600	465 l/s

Grille Sizing

APPLICATION	MAX RECOMMENDED VELOCITY (m/s)
Return air grille at high level	1.75
Return air grille at low level	1.50
Return air grille for low noise level	1.25
Wall registers	2.50
Fresh air grilles	1.50
Discharge louvres	1.50

Conversions

CONVERT	TO	MULTIPLE
Litres per second(l/s)	Cubic feet per minute(cfm)	l/s X 2.119
Cubic feet per minute(cfm)	Litres per second (l/s)	cfm X 0.4719
Hp (refrigeration)	Watts (refrigeration)	Hp X 2.595(nominal)
Ton (refrigeration)	kW (refrigeration)	Tons X 3.5168
BTU/hr	Watts (refrigeration)	BTU/hr X 0.293
Inches (in)	Millimetres (mm)	in X 25.4
Square inches(sq in)	Square millimetres (mm2)	sq in X 645.16
Square feet (sq ft)	Square metres (m2)	sq ft X 0.0929
Inches water (in H2O)	Pascals (Pa)	in water X 249
Pounds (lb)	Kilograms (kg)	lb X 0.45359