Service Manual 32 – Contour 3 Series, Profiler & Advance – Approved Issue 5 Printed 2/13/2014 11:50:17 AM
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 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.
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