Honeywell MN7220 User's Manual

Honeywell Automobile Electronics User's Manual - MN7220.
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PRODUCT DATA

63-2587-1

N20, N34 Series MN7220, MN7234

NON-SPRING RETURN DAMPER ACTUATOR

20/34 Nm (175/300 lb-in) FOR MODULATING CONTROL

GENERAL

These direct-coupled damper actuators provide modulating 

control for:

• rotary valves,

• air handling units,

• ventilation flaps,

• louvers, and

• reliable control for air damper applications with up to 50 

sq.ft. (20 Nm / 175 lb-in) or 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 (MN7220 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
MN7220

6 VA / 6 W

MN7234

8 VA / 6 W

Ambient limits
Ambient operating limits

-5...+140 °F (-20...+60 

°C)

Ambient storage limits

-40...+175 °F (-40...+80 

°C)

Relative humidity

5...95%, non-condensing

Safety
Protection standard

IP54 (non-USA models)
NEMA2 (USA models)

Protection class

II as per EN 60730-1

Overvoltage category

II

Lifetime
Full strokes

60000

Repositions

1.5 million

Mounting
Round damper shaft

3/8...1-1/16” (10...27 mm)

Square damper shaft

3/8...11/16” (10...18 mm);
45° steps

Shaft length

min. 7/8” (22 mm)

Control signal

0(2)...10 Vdc
0(4)...20 mA

Input impedance

100 k

Ω [0...10 V]

500 

Ωm [0...20 mA]

Feedback signal
Limits

± 1 mA at 0...10 V

Auxiliary switch (when included)
Rating

5 A (resistive) / 3 A (inductive)

Triggering points

5

° / 85°

Torque rating
MN7220

175 lb-in (20 Nm)

MN7234

300 lb-in (34 Nm)

Runtime

95 sec (60 Hz) / 110 sec (50 Hz)

Rotation stroke

95

° ± 3°

Dimensions

see “Dimensions” on page 8

Weight

3 lbs. (1.35 kg)

Noise rating

40 dB(A) max. at 1 m

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