Twin City ES-694 User Manual

TSL Nestled Inlet Vanes

INSTALLATION, OPERATION & MAINTENANCE MANUAL

ES-694

May 1996

Removing Old Cone or Vane

1. Shut off fan and lock out electrical power.

2. Remove inlet screens if applicable.

3. For Old Inlet Cone Removal — Loosen fasteners at
periphery of inlet cone and remove old cone.

3. For Old Inlet Vane Removal — Loosen hex nut (item
10 and 13 in Figure 2) and remove vane handle, and
control linkage and oilite bearings.

4. Loosen fasteners which hold old inlet vane to fan
housing, and remove the vane and control linkage.

Assembling Nested Inlet Vane

For New Installation

1. Using Figure 2 as a guide, assemble items 5 through
16 to the new inlet vane, measuring threaded linkage
rod length to fit. For fan sizes 182 through 245, the
control linkage bar (item 5) has a 15-degree right­hand twist to allow the inlet vane to fully open and
close.

2. Center the inlet vane in location of old inlet funnel
and rotate the inlet vane to position the control ring
clip as shown in Figure 1.

3. Using dimensions in Figure 1, cut a hole in the fan
housing for attaching control rod.

4. Install all remaining parts to the inlet vane according
to Figure 2, using the setscrews to hold the control
rod to vane handle and control linkage bar.

5. Adjust position of connecting links as required to

allow vane to open and close smoothly. The length
of threaded linkage rod (item 6) may have to be
adjusted as necessary.

6. Tack weld the control rod to vane handle and control
linkage bar. Using dimensions in Figure 1 weld the
quadrant (item 2) and control rod housing (item 4) to
the fan housing.

7. Reinstall inlet screening if applicable.

For Replacement

1. Using Figure 2 as a guide, assemble items 5 through
16 to the new inlet vane, measuring threaded linkage
rod length to fit. For fan sizes 182 through 245, the
control linkage bar (item 5) has a 15-degree right­hand twist to allow the inlet vane to fully open and
close.

2. Center the inlet vane in location of the old inlet vane,
and rotate until the hole on the control linkage bar
is lined up with the hole on the fan housing.

3. Install all remaining parts to the inlet vane according
to Figure 2, using setscrews to hold control rod to
the vane handle and control linkage bar.

4. Adjust position of connecting links as required to
allow vane to open and close smoothly. The length
of the threaded linkage rod (item 6) may have to be
adjusted as necessary.

5. Tack weld control to the vane handle and linkage
bar.

6. Reinstall inlet screening if applicable.

Figure 1. Control Ring and Quadrant Position

LEAD ROD (LINE UP

WITH BOLT HOLE)

RING CLIP

DETAIL "A"

CONTROL
RING

QUADRANT

ACCESS DOOR

CONTROL ROD

(TOP POSITION FOR
FLOOR MTG. BOTTOM
POSITION FOR HORIZ.

CEILING HUNG)

SIZE 182 — 245

SIZE 182 200 222 245 270 300 330 365 402 445 490 542 600 660 730 807 890

A 10.25 11.25 12.50 13.75 15.25 16.75 18.50 20.50 22.50 25.00 27.50 30.25 33.50 37.00 40.75 45.00 49.75

B 4.25 4.25 4.75 5.25 5.25 5.75 6.37 6.50 8.00 7.75 8.62 9.50 10.25 11.12 12.00 12.87 13.75

B

45°

A

LEAD ROD (LINE UP

WITH BOLT HOLE)

CONTROL
ROD HSG.

FAN HSG.

CENTER

3.0

DETAIL "A"

H

G

F

1/8

A

B

TOP POSITION FOR
FLOOR MOUNTING

C

D

E

BOTTOM POSITION FOR
HORIZ. CEILING HUNG

DETAIL "B"

RING
CLIP

CONTROL
RING

(TOP POSITION FOR
FLOOR MTG. BOTTOM
POSITION FOR HORIZ.

MOTOR LOCATION VS. CONTROL ROD HOUSING LOCATION

FOR ALL SIZES (VIEW FROM INLET)

QUADRANT

ACCESS

DOOR

CONTROL ROD

CEILING HUNG)

B

A

SIZE 270 — 890

45°

FAN HSG.

CENTER

CONTROL

ROD HSG. C

PARALLEL

TO HORIZ. C

3.0

L

L

DETAIL "B"

1/8

©1996 Twin City Fan & Blower Co.

Figure 2. Nested Inlet Vane Control System For TSL Fan

22

1

2

17

4

18

19

8A

9

14

13

8

15

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

FAN HOUSING

20

17

3

16

10

12

11

6

7

11

5

13

21

12

5A

10

NOTES:

1. Items 8, 14, 15 and 16 are used for fan sizes 245 through 890.

2. Items 7 and 12 are used on fan size 600 and larger.

3. Item 8A is used for fan sizes 182 through 222.

4. Measure threaded linkage rod length to fit; maximum 10" and minimum 4".

5. Quadrant and control rod housing is to be welded to the fan housing.

6. Twisted control linkage bar (item 5A) is used for fan sizes 182 through 245.

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