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Service Manual 32 – Contour 3 Series, Profiler & Advance – Approved Issue 5 Printed 2/13/2014 11:50:17 AM
92
Dealing with Problem Installations
(cont.)
Calculate the volume of the individual areas the Cooler's outlets are serving.
The locality factor is used to multiply by the room volume, to determine the correct
minimum duct and register sizes.
Check that the duct and outlet sizes selected, are capable of delivering the total
output of the Cooler selected, as per the minimum recommended size tables.
Duct
Capacity
Outlet
Capacity
Duct Size
Cooling
Airflow
Size (mm)
Airflow
Capacity
250 mm
150 L/s
250 X 250
Up to 100 L/s
300 mm
275 L/s
300 X 300
Up to 250 L/s
350 mm
425 L/s
350 X 350
Up to 375 L/s
400 mm
600 L/s
400 X 400
Up to 500 L/s
450 mm
990 L/s
450 X 450
Up to 600 L/s
500 mm
1080 L/s
550 mm
1230 L/s
600 mm
1420 L/s
If the room and/or the area
air requirement calculation is less than 85% of the
Cooler's maximum output
(midway between the minimum and maximum Output
Selection figure), then the duct and outlet sizes should be increased to meet this
level.