Twin City ES-594 User Manual

Figure 1

External Inlet Vanes

INSTALLATION, OPERATION & MAINTENANCE MANUAL

23

22

ES-594

May 1996

20

2

22

17

18

19

ITEM DESCRIPTION
01 EXTERNAL INLET VANE HOUSING
02 QUADRANT
03 VANE HANDLE
04 CONTROL ROD
05 CONTROL LINKAGE BAR
06 THREADED LINKAGE ROD
07 THREADED LINKAGE ROD HOUSING
08 CONTROL RING CLIP
09 CONTROL RING
10 BALL JOINT
11 HEX NUT
12 HEX NUT
13 NEX NUT
14 UNISTRUT
15 UNIISTRUT CLAMPING NUT
16 HEX HEAD SCREW
17 FLAT WASHER
18 SPRING LOCK WASHER
19 HEX HEAD SCREW
20 SQUARE HEAD SETSCREW
21 SQUARE HEAD SETSCREW
22 OILITE BEARING
23 OILITE BEARING BAR

11

12

6

7

10

21

5

13

4

20

1

NOTES:

1. Items 7 and 12 are used for fan size 445 and larger.

2. Measure threaded linkage rod length to fit.

3. Quadrant is to be welded to inlet vane housing.

4. Oilite bearing bar (item 23) is to be welded to inlet vane housing.

5. When attaching the external inlet vane to the fan housing, be sure
that when the vane is partially closed the entering air will be spun
in the direction of wheel rotation.

9

13

BLADE POSITION FOR CCW
(COUNTERCLOCKWISE) FAN

16

8

15

14

BLADE POSITION FOR
CW (CLOCKWISE) FAN

AIRFLOW

12

11

10

©1996 Twin City Fan & Blower

Figure 2. External Inlet Vanes Handle Location For BC/BAF, BCS Fans

HANDLE LOCATION VIEWED FROM INLET
SIZES
122–542

SIZES
600–730

CCW – THD, TAD, DBD, TAU
CW – UBD, BAU, BHD

SIZES
122–542

SIZES
600–730

CCW – UBD, BAU, BHD
CW – THD, TAD, DBD, TAU

45°

9.75

PIVOT

A

B

J

C

(I.D.)

D

(O.D.)

45°

AIRFLOW

H

(E) NO. OF "F" DIA. HOLES

BLADE POSITION FOR
CW (CLOCKWISE) FAN

SIZE A B C D E F G H J
122 7.94 22.50 13.25 16.25 8 .44 15.00 5.75 1.88

135 8.56 22.50 14.50 17.56 8 .44 16.31 6.25 2.13
150 9.38 22.50 16.13 19.19 8 .44 17.94 6.88 2.25
165 10.19 22.50 17.75 20.75 8 .55 19.50 7.50 2.50

182 11.06 22.50 19.50 22.50 8 .44 21.25 8.19 2.75
200 12.00 22.50 21.38 24.38 8 .44 23.13 8.88 3.00
222 13.19 22.50 23.75 27.75 12 .56 26.00 9.81 3.25
245 14.31 22.50 26.00 30.06 12 .56 28.31 10.63 3.50

270 15.53 22.50 28.44 32.50 12 .56 30.75 11.56 3.88
300 17.31 22.50 31.63 35.63 12 .56 33.88 12.81 4.25
330 18.88 22.50 34.75 38.75 12 .56 37.00 14.00 4.63
365 20.78 15.00 38.56 42.50 12 .56 40.75 10.75 3.63

402 22.69 15.00 42.38 46.44 12 .56 44.69 11.75 3.88
445 24.94 15.00 46.88 51.88 16 .69 49.63 12.81 4.25
490 27.84 15.00 51.69 56.63 16 .69 54.38 14.13 4.75
542 30.56 15.00 57.13 62.13 16 .69 59.88 15.56 5.25

600 33.56 11.25 63.13 68.13 16 .69 65.88 13.13 4.38
660 36.63 11.25 69.25 74.38 16 .69 72.13 14.31 4.75
730 40.38 11.25 76.75 81.75 16 .69 79.50 15.75 5.25

EQUALLY SPACED ON A "G"

BOLT CIRCLE

Twin ciTy fan & blower | www.Tcf.com

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