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BM000S/020S/060S/080S 
BM800S/820S/860S/880S 

Specification & Installation instruction

 

 

 

Mechanical installation

 

CLUTCH

MOUNTING
BRACKET

 

1. 

Manually close the damper blades and positioned the 
actuator at 0º or 90º.

 

2. 

Slide the actuator onto the shaft. 

 

3. 

Tighten the nuts on the “U” bolt to the shaft with a 8mm 
wrench to a torque of 60 in.lb. [6,7 Nm].

 

4. 

Slide the mounting bracket under the actuator. Ensure free 
movement of the slot at the base of the actuator. The 
bracket pin must be placed in the mid distance of the slot.

 

5. 

Fix the bracket to the ductwork with #8 self-tapping screws.

 

 

Wiring Diagrams 

Analog 2 to 10 Vdc 

1

2

3

COMMON (-)

SUPPLY (+)

2 to 10 VDC

TB1

JP1

Jumper at left

 

Analog 4 to 20 mA 

1

2

3

COMMON (-)

SUPPLY (+)

4 to 20 mA

TB1

JP1

Jumper at right

 

 

PC Board 

Dip switch settings 

 

Rotation direction (SW1)

 

 

CW

(0 to 90º)

CCW
(90 to 0º)

 

1   2    3

Terminal

TB1

SW

2

Rotation direction

Fail safe direction

(only on model 60S & 80S)

SW1

Potentiometer

JP1

Control signal
selection

BM060VAV

 

 

Fail safe direction (SW2) 
(only on model 60S & 80S) 

 

Fail safe

return at 0º

Fail safe
return at 90º

 

 

Stroke adjustment 

To adjust the stroke, move the adjustment screws at the desired position.

 

 

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