Honeywell N20010, N34010 PRODUCT DATA

NON-SPRING RETURN DAMPER ACTUATOR

20/34 Nm (177/300 lb-in) FOR MODULATING CONTROL

GENERAL

These direct-coupled damper actuators provide modulating
control for:

• air dampers,

• VAV units,

• air handling units,

• ventilation flaps,

• louvers, and

• reliable control for air damper applications with up to

FEATURES

• New self-centering shaft adapter

• Access cover to facilitate connectivity

• Declutch for manual adjustment

• Mechanical end limits

• Field-installable auxiliary switches

• Rotation direction selectable by switch

• Mountable in any orientation (no IP54 if upside down)

• Mechanical position indicator

2

4.6 m

/ 50 sq.ft. (20 Nm / 177 lb-in) or 7.8 m2 / 85 sq. ft.
(34 Nm / 300 lb-in) (seal-less dampers; air friction­dependent).

N20010, N34010

PRODUCT DATA

SPECIFICATIONS

Supply voltage 24 Vac ±20%, 50/60 Hz;
24 Vdc -10...+20%

Nominal voltage 24 Vac, 50/60 Hz; 24 Vdc

All values stated hereinafter apply to operation under
nominal voltage conditions.

Power consumption

N20010 6 VA / 6 W
N34010 8 VA / 6 W

Ambient limits

Ambient operating limits -20...+60 °C (-5...+140 °F)
Ambient storage limits -40...+80 °C (-40...+175 °F)
Relative humidity 5...95%, non-condensing

Safety

Protection standard IP54 as per EN 60529
Protection class II as per EN 60730-1
Overvoltage category II

Lifetime

Full strokes 60000
Repositions 1.5 million

Mounting

Round damper shaft 10...27 mm (3/8...1-1/16")
Square damper shaft 10...18 mm (3/8...11/16");
45° steps
Shaft length min. 22 mm (7/8")
Control signal 0(2)...10 Vdc
0(4)...20 mA

Input impedance 100 kΩ [0...10 V]
500 Ω [0...20 mA]

Feedback signal

Limits ± 1 mA at 0...10 V

End switches (when included)

Rating 5 A (resistive) / 3 A (inductive)
Triggering points 5° / 85°

Torque rating
N20010 20 Nm (177 lb-in)
N34010 34 Nm (300 lb-in)

Runtime 95 sec (60 Hz) / 110 sec (50 Hz)
Rotation stroke 95° ± 3°
Dimensions see "Dimensions" on page 8
Weight (without cables) 1.35 kg (3 lbs.)
Noise rating 45 dB(A) max. at 1 m
Software Class A as per EN 60730-1

® U.S. Registered Trademark EN0B-0341GE51 R0409
Copyright © 2009 Honeywell Inc. • All rights reserved

SmartAct N20010, N34010

MODELS

order number supply voltage end switches control signal feedback torque

N20010 24 Vac -- 0...10 Vdc / 0...20 mA 0...10 Vdc 20 Nm (177 lb-in)

N20010-SW2 24 Vac 2 0...10 Vdc / 0...20 mA 0...10 Vdc 20 Nm (177 lb-in)

N34010 24 Vac -- 0...10 Vdc / 0...20 mA 0...10 Vdc 34 Nm (300 lb-in)

Product Identification System

N = non-spring return
S = spring return

20 = 20 Nm (177 lb-in)
34 = 34 Nm (300 lb-in)

010 = modulating

24 = 24 V floating+ON/OFF

230 = 230 V floating+ON/OFF

SmartAct

OPERATION / FUNCTIONS

1

60

90

90

60

30

0

2

3

4

5

6

7

Fig. 2. Setting units and control elements

30

0

N

0

2

Fig. 1. Product Identification System

X

320

Legend for Fig. 2:

1 Self-centering shaft adapter
2 Retainer clip
3 Rotational angle scales (0...90° / 90...0°)
4 Mechanical end limits (20 Nm [177 lb-in] models, only)
5 Declutch button
6 Anti-rotation bracket
7 Rotation direction switch
8 Access cover

Contents of Package

The delivery package includes the actuator itself, parts 1
through 8 (see Fig. 2), the anti-rotation bracket screws, and
the SM mounting plate and screws.

Modulating Control

The actuator is capable of being operated by several
controllers providing Vdc or mA output.

Rotary Movement

8

The control signal and the corresponding rotation direction
(clockwise or counterclockwise) can be selected using the
rotation direction switch (see part 7 in Fig. 2), thus eliminating
the need to re-wire. To ensure tight closing of the dampers,
the actuator has a total rotation stroke of 95°.

As soon as operating power is applied, the actuator may start
to run. When power is removed, the actuator remains in
position. For actuator-controller wiring instructions, see
section "Wiring" on page 5.

EN0B-0341GE51 R0409 2

SmartAct N20010, N34010

Rotation Direction Switch

Fig. 3. Rotation Direction Switch

Table 1. Feedback/control signal values

rotation direction

switch position

feedback/control signal when

actuator is

totally totally

Y=2 /2...10V U = 2 V U = 10 V
Y=0 /0...10V* U = 0 V U = 10 V
Y=0 /10...0V U = 10 V U = 0 V
Y=2 /10...2V U = 10 V U = 2 V
* Default shipping position.

Feedback Signal and Manual Adjustment

If, while the actuator is not rotating, the user declutches it and
manually repositions the shaft adapter, the feedback signal
will then follow the new position at which the shaft adapter
has been left.

Power OFF/ON Behavior

In case the power to the actuator fails, after re-applying
power, the actuator aknowledges its present position and
follows the signal from the controller. This makes it
unnecessary for the actuator to employ autoadaption in order
to re-map the control signal settings.

Dip Switches

The actuators are equipped with two dip switches accessible
after removing the access cover (see Fig. 4).

autoadapt dip switch for

normal operation ( )

ON

voltage/current control signal

dip switch ( )

OFF

Autoadapt Dip Switch for Normal Operation

In its default shipping position, the autoadapt dip switch for
normal operation is set to ON as shown in Fig. 4. If it is set to
OFF, no autoadapting is performed, and the control signal
map remains constant.

The autoadapt functionality does not have to be triggered.
Rather, the SmartAct actuator does this automatically when
the min. and max. control signals are provided (see Fig. 5);
the feedback signal is likewise autoadapted.

Fig. 5. Actuator positioning curve

Adjusting the Actuator for Autoadapt

In order to make use of the autoadapt functionality, proceed
as follows:

1. Set the autoadapt dip switch to the ON position.

2. If necessary, limit the stroke to the desired range using
the mechanical end limits.

3. Drive the actuator to the left end limit (totally counter­clockwise) by setting the control signal as specified in
Table 1.

4. Drive the actuator to the right end limit (totally clockwise)
by setting the control signal as specified in Table 1. The
stroke has now been limited to 0...100% of the control
signal range.

Voltage/Current Control Signal Selection Dip Switch

In its default shipping position, the voltage/current control
signal dip switch (see Fig. 4) is set to OFF (= voltage control).
as shown in Fig. 4. Setting it to ON results in current control.

Position Indication

The hub adapter indicates the rotation angle position by
means of the rotational angle scales (0...90° / 90...0°).

90 90

60

30

60

30

00

Fig. 4. Dip switches (view with PCB at bottom)

3 EN0B-0341GE51 R0409

Fig. 6. Position indication