Daikin Skyline OAH003GDAC Installation And Maintenance Manual page 32

Table 8: Wheel-to-Inlet Funnel Relationship—Forward
Curved Type Fan Wheels
Diameter – in .
Unit Sizes 003 to 035
9 × 4
9 × 7
9 × 9
10
12
15
18
20 (Class 1 & 2)
22.5 (Class 1 & 2)
24.5 (Class 1 & 2)
Unit Sizes 040 to 090
20 (Class 1 & 2)
22.38 (Class 1 & 2)
25 (Class 1 & 2)
27.62 (Class 1 & 2)
30 (Class 1 & 2)
33 (Class 1 & 2)
36 (Class 1 & 2)
Note:
1. To obtain rated air performance, dimensional relationship must beheld.
2. Adjust dimension C by loosening wheel hub setscrews, shifting wheel(s) axially as
needed, and retightening setscrews
Figure 59: Wheel-to-Inlet Funnel Relationship—13 to 36
Belt-Drive Plenum Fan
Cross Section Reference
B
FROM FUNNEL END TO
FANWHEEL OPENING END
A
C
Table 9: Wheel-to-Inlet Funnel Relationship—13 to 36 Belt-
Drive Plenum Fan
Wheel-Funnel Parameters
Size – in . A
13 0.25 (6.35)
15 0.25 (6.35)
16 0.25 (6.35)
18 0.38 (88.9)
20 0.42 (10.67)
22 0.45 (11.43)
24 0.51 (12.95)
27 0.55 (13.97)
30 0.62 (15.75)
33 0.55 (13.97)
36 0.63 (16.0)
IM 777-18 • SKYLINE OUTDOOR AIR HANDLER
C
in . (mm)
0.25 (6.35)
0.13 (3.30)
0.25 (6.35)
0.22 (5.59)
0.35 (8.89)
0.44 (11.18)
0.25 (6.35)
0.73 (8.54)
0.59 (14.99)
0.56 (14.22)
0.24 (6.10)
0.41 (10.41)
0.47 (11.94)
0.47 (11.94)
0.47 (11.94)
0.50 (12.70)
0.75 (19.05)
EQUALLY SPACED
AROUND DIAMETER
in . (mm)
B C
0.91 (23.11) 3.50 (88.9)
0.91 (23.11) 3.50 (88.9)
0.91 (23.11) 3.50 (88.9)
0.86 (21.84) 3.88 (98.55)
1.11 (28.19) 3.88 (98.55)
1.11 (28.19) 3.88 (98.55)
1.11 (28.19) 3.88 (98.55)
1.36 (34.54) 4.50 (114.3)
1.36 (34.54) 4.50 (114.3)
1.50 (38.1) 5.00 (127.0)
1.50 (38.1) 5.00 (127.0)
Figure 60: Wheel-to-Inlet Funnel Relationship—40 to 60
Belt-Drive Plenum Fan
Cross Section Reference
FUNNEL END TO FAN
C
Table 10: Wheel-to-Inlet Funnel Relationship—40 to 60
Belt-Drive Plenum Fan
Wheel-Funnel Parameters
Size – in . A
40 0.82 (20.83)
44 0.91 (23.11)
49 1.00 (25.4)
54 1.10 (27.94)
60 1.23 (31.242)
32
o G
peraTIon uIdelInes
A
WHEEL OPENING
EQUALLY
SPACED AROUND
B
DIAMETER
in . (mm)
B
2.00 (50.8) 4.88 (121.92)
2.25 (57.15) 5.50 (139.7)
2.50 (63.5) 5.50 (139.7)
2.50 (63.5) 5.50 (139.7)
3.00 (76.2) 5.50 (139.7)
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C