HONEYWELL NON-SPRING RETURN DAMPER ACTUATOR 20/34 Nm (177/300 lb-in) FOR MODULATING CONTROL: Lựa chọn hàng đầu tại Subang Jaya, Selangor, Kuala Lumpur (KL), Malaysia. Culmi Air-Cond & Refrigeration Parts Supply Sdn Bhd

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HONEYWELL NON-SPRING RETURN DAMPER ACTUATOR 20/34 Nm (177/300 lb-in) FOR MODULATING CONTROL

Model

CN7220A2007 20Nm,24Vac/Vdc, Modulating control, Non-Spring return, Voltage Feedback Signal and without aux. Switch

CN7234A2008 34Nm,24Vac/Vdc, Modulating control, Non-Spring return, Voltage Feedback Signal and without aux. Switch

GENERAL

These direct-coupled damper actuators provide modulating

control for:

• Air dampers

• VAV units

• Air handlers

• Ventilation flaps

• Louvers, and

• Reliable control for air damper applications with up to 4.6m2 / 50 sq.ft. (20 Nm / 177 lb-in) or 7.8m2 / 85 sq.ft. (34 Nm / 300 lb-in)(seal- less damper blades; air friction-dependent)

FEATURES

• New self-centering shaft adapter

• Access cover to facilitate connectivity

• Declutch for manual adjustment

• Mechanical end limits (CN7220 only)

• Field-installable auxiliary switches

• Rotation direction selectable by switch

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

• Mechanical position indicator

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

CN7220 6 VA / 6 W

CN7234 8 VA / 6 W

Ambient limits

Ambient operating limits -20...+60 ℃ (-5...+140 °F)

Ambient storage limits -40...+80 ℃ (-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 Ωm [0...20 mA]

Feedback signal

Limits ± 1 mA at 0...10 V

Torque rating

CN7220 20 Nm (177 lb-in)

CN7234 34 Nm (300 lb-in)

Runtime 95 sec (60 Hz) / 110 sec (50 Hz)

Rotation stroke 95°± 3°

Dimensions see “Dimensions” on page 6

Weight 1.35 kg (3 lbs.)

Noise rating 40 dB(A) max. at 1 m

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