TCF IM-995 - Page 25

Installation, Operation & Maintenance Manual
IM-995
25
HRS Impeller Overlap
Fan
Size
Impeller
Size
B
150
50
0.63
250 0.56
350 0.54
155
55
0.69
255 0.61
355 0.59
160
60
0.75
260 0.67
360 0.65
165
65
0.81
265 0.72
365 0.70
170
70
0.88
270 0.78
370 0.75
Model HRS
Impeller Placement
Models FCV, NFC-SW
FCV, FC-DW, NFC-SW, NFC-DW Impeller Gap
Size B C Size B C
10.5 0.47 0.69 30 0.75 4.38
12 0.25 1.88 33 0.81 5.00
15 0.44 2.19 36 0.75 5.00
18 0.50 2.25 39 1.06 6.38
21 0.69 2.88 42 1.69 7.50
24 0.81 3.00 48 1.50 7.13
27 0.69 3.13 54 1.00 10.50
Models FC-DW, NFC-DW
HRS Impeller Overlap
Fan
Size
Impeller
Size
B
125
25
0.31
225 0.28
325 0.27
130
30
0.38
230 0.33
330 0.32
135
35
0.44
235 0.39
335 0.37
140
40
0.50
240 0.44
340 0.43
145
45
0.56
245 0.50
345 0.48
Model HRO
HRO Impeller Gap
Fan
Size
Impeller
Size
B
125
25
0.82
325 0.80
130
30
0.99
330 0.99
135
35
1.14
335 1.12
140
40
1.32
340 1.29
145
45
1.46
345 1.42
HRO Impeller Gap
Fan
Size
Impeller
Size
B
150
50
0.99
350 1.59
155
55
0.99
355 1.59
160
60
0.99
360 0.99
165
65
0.99
365 2.09
170
70
2.31
370 2.26