Twin City External Inlet Vanes - ES-594 - Manual

©1996 Twin City Fan & Blower
BLADE POSITION FOR CCW
(COUNTERCLOCKWISE) FAN
BLADE POSITION FOR
CW (CLOCKWISE) FAN
AIRFLOW
11
23
22
7
12
11
10
10
21
5
9
16
13
13
8
15
14
4
1
20
20
2
17
18
19
22
12
6
Figure 1
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
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.
ES-594
May 1996
External Inlet Vanes
INSTALLATION, OPERATION & MAINTENANCE MANUAL