Daikin Vision - Page 26

IM 915-13 • VISION - EXTENDED SIZES 26 www.DaikinApplied.com
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Figure 41: Wheel-to-Inlet Funnel Relationship—18 to 36
Belt-Drive Plenum Fans
Table 7: Wheel-to-Inlet Funnel Relationship—18 to 36
Belt-Drive Plenum Fan
Wheel-Funnel Parameters
Size A B 
18 0.38 0.86 3.88
20 0.42 1.11 3.88
22 0.45 1.11 3.88
24 0.51 1.11 3.88
27 0.55 1.36 4.5
30 0.62 1.36 4.5
33 0.55 1.5 5.0
36 0.63 1.5 5.0
Figure 42: Wheel-to-Inlet Funnel Relationship—40 to 60
Belt-Drive Plenum Fans
Table 8: Wheel-to-Inlet Funnel Relationship—40 to 60
Belt-Drive Plenum Fan
Wheel-Funnel Parameters
Size A B 
40 0.82 2.00 4.88
44 0.91 2.25 5.50
49 1.00 2.50 5.50
54 1.10 2.50 5.50
60 1.23 3.00 5.50
Cross Section Reference
C
AROUND DIAMETER
EQUALLY SPACED
B
A
FROM FUNNEL END TO
FANWHEEL OPENING END
Cross Section Reference
B
C
A
FUNNEL END TO FAN
WHEEL OPENING
EQUALLY
SPACED AROUND
DIAMETER