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PROPORTIONAL DAMPER ACTUATOR
 
 
 
 
 
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GDA-20A is motor operated ON / OFF damper actuator to open and close Damper which can be used for HVAC air handling units.

 

Used for operating Damper for ventilation and Air handling facilities.
Nominal torque is 20Nm and can be covered damper surface area for 4㎡.
Used for ON / OFF damper control.
Used for air damper, ventilating gas damper, etc.

 
 Select operating direction ( CW or CCW ) by changing the connection of wiring
 Actuator will move within 0°”or“90° in case of normal input supply power 
 When the power is OFF at AC24V or AC220V, Actuator will stop moving at the current position
 
Supply Voltage    AC 24V ±10%, or (AC220V)
  Frequency   50 / 60 ㎐
 Power Consumption   5.5VA ( On Operation )
 Control Signal   ON / OFF Switch
 Torque   200 Kg-㎝(20 Nm)
 Rotation Range   0 ~ 90°
  Mechanical Rotation Range  95°±2° ( mechanical limit at 95°)
  Direction of Rotation    Forward/Reverse direction ( changing wire connection)
 Operating Tie   Apprx. 110 sec.
 Ambient temperature   -30 ~ +50℃, below 95%RH
 Connecting Cable   0.5sq.mm ~ 1.5mm
 Noise Degree   45 dB
 Protection Housing Class   IP 42
 Weight   1.67 Kg
 Applicable Damper Shaft   Φ10~Φ20 ( round ), □10~□16 ( square )
 

 Mounting Bracket : To mount actuator on damper axis directly, it must be used bracket, and fixing pin of mounting bracket should be correctly fixed into the groove of Actuator.
 Mounting Location : Select easy location for setting dial of front side of Actuator and cable connection.
 Manual Control : According to mounting procedures, and press manual control button first and adjust shaft adaptor and location indicator. ( in case of manual control, power should not be connected )

GDA-30P is motor actuated proportional damper actuator controlled by the signal DC 0~10V or 4 ~ 20mA, and designed for damper control in HVAC system and can provide 0 ~10V position feed back signal.

 

Used for operating Damper for ventilation and Air handling facilities.
Nominal torque is 20Nm and can be covered damper surface area for 6㎡.
Proportional operation will be activated by DC 0 ~10V or 4 ~ 20mA and possible to be DC 0 ~ 10V position feedback signal output.

 

Damper rotation can be selectable direction ( CW or CCW ) by jumper PIN.
Damper moves by control signal that it maintains same position unless changing control signal.
When operating power is at normal and at no control signal, Actuator moves to the direction of " 0°" or " 90°" ( operating direction can be changd by jumper PIN ).
When power is OFF, Actuator will be stopped at current position.

 
Supply Voltage    AC 24V ±10%
  Frequency   50 / 60 ㎐
 Power Consumption   7.5VA( 3W )
 Control Signal   DC 0~10V / 4~20mA ( Multiple use )
 Positioning Accuracy   ±5%
 Nominal Torque   300 Kg-㎝(30Nm)
  Nominal Rotating Range   0 ~ 90°
  Mechanical Rotating Range    95°±2° ( mechanical control limit at 95°)
 Rotating Direction   Direct / Reverse Action
 Operating Time   140 sec. (30Nm)
 Operating Condition  -30 ~ +50℃, below 95%RH
 Connecting Cable  0.5sq.mm ~ 1.5mm
 Noise Degree   45 dB
 Protection Class   IP 42
 Weight   1.72 Kg
 Applicable damper shaft  Φ10~Φ20 ( round pipe ), □10~□16 ( square pipe )

 

 
Mounting Bracket : To mount Actuator on damper axis directly, it must be used with mounting bracket and fixing pin of mounting bracket should be correctly fixed on the groove of Actuator.
Mounting Location : Select easy location for setting dial of front side of Actuator and cable connection.
Manual Control : To adjust correct open/close function of switching location of damper, first to press manual button according to mounting procedures and adjust shaft adaptor and location indicator .
Mechanical limitation for rotating degree movement : can be limited rotating degree movement by 5°between 0°to 90°.