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Fatpa direct drive series instructions – Greenheck MSxx04 & MSxx09 Series External (477252) User Manual

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Figure 2: MS Series wiring illustration.

FATPA DIRECT DRIVE SERIES

INSTRUCTIONS

These installation instructions assume the damper is
already mounted in a duct or sleeve with the damper
shaft extending beyond the duct or sleeve 6 inches
(152mm).
1. Install the stand-off bracket

Dampers with a jackshaft

1a. Remove the 1/2 in. (13mm) ball bearing from the

standoff bracket. Mount the stand-off bracket (item
#7) with [4] 1/4-20 x 1/2 in. (M6 x 12mm) spinlock
bolts and nuts (item #4 and 5). Orient the stand-off
bracket (item #7) so the hole is centered on the
jackshaft (see Figure 1, With Jackshaft).

Dampers without a jackshaft (Shaft Extension)
1b. Mount the stand-off bracket (item #7) spanning

across the damper frame flanges. Fasten to the
damper frame with [4] 1/4-20 x 1/2 in. (M6 x 12mm)
spinlock bolts and nuts (item #4 and 5). Be sure not
to run the screws into the damper linkage, which is
between the flanges.

2. Mount actuator bracket
Fasten the actuator bracket (item #1) (See Figure

1) to the standoff bracket (item #7) using [4] 1/4-20 x
1/2 in. (M6 X 20mm) spinlock bolts and nuts (item #4
and 5). Use outer four holes of the actuator bracket
(item #2).

3. Fail Position
If fail position is closed, make sure damper

blades are fully close and ensure blade seals are
compressed prior to tightening the actuator clamp
to the damper extension pin or jackshaft.

4. Install the actuator

Install the actuator (item #6) over the damper drive

shaft and tight against the actuator bracket (item
#1). Install [1] #10-24 x .375 shoulder bolts (item #2)
through lugs on actuator and through the holes in
back of the actuator bracket (item #1). Secure with
[2] #10-24 nuts (Item #5) (See Figure 1).

5. Secure actuator (Item #6) to drive shaft by

tightening the set screws on actuator collar.

6. The wiring illustration identifies actuator electrical

requirements and connections (See Figure 2).
Wiring must comply with all applicable electrical
codes.

7. Apply power to the actuator. The damper blades

should fully open or close and return to the fail
position when power is disconnected.

M34624

24 VAC

BLACK
RED

GREEN

L1 ( )

L2 ( )

YELLOW
YELLOW

BLUE

7° AUXILIARY

SWITCH

85° AUXILIARY

SWITCH

BLUE

24 VAC wiring diagram

120 VAC wiring diagram

230 VAC wiring diagram

WHITE

BLACK

GREEN

L1 ( )

L2 ( )

YELLOW
YELLOW

BLUE
BLUE

7° AUXILIARY

SWITCH

85° AUXILIARY

SWITCH

120 VAC

M34625

M34626

BLUE

BROWN

GREEN

230 VAC

L1 ( )

L2 ( )

YELLOW
YELLOW

BLUE
BLUE

7° AUXILIARY

SWITCH

85° AUXILIARY

SWITCH

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