Pioneer PDM-4001 Technical Manual page 35

Mesh
Intake side
A
Rear view (the following area should be made of mesh)
A+50 150
Special installation (Putting in a box) Rear side mesh
Minimum area
900 cm 2 or more
Outside air temperature mea-
10mm
Mesh
suring point
Exhaust side
A
B
B
150 A+50
D
C
Mesh with aperture effi-
ciency of 50% or more
Area 900 cm 2 or more
A ≥ 50
B ≥ 50
C ≥ 10
D ≥ 50
10mm
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