Honeywell MS4103 Manual Do Utilizador

92

N20 Series (MN6120; MN7220)

These direct-coupled damper 
actuators provide adjustable 
modulating control for: air 
dampers, VAV units, air handling 
units, ventilation flaps, louvers, and 
reliable control for air damper 
applications with up to 4.6 m2/50 
sq ft (seal-less dampers; air 
friction-dependent).

SPECIFICATIONS
Actuator Type ....................................... Damper; Valve

Rotational Stroke  .................................. 95 ±3 degrees

Fail Safe Mode  ..................................... Non-Spring Return

Rated Torque ........................................ 175 lb-in. (20 Nm) 

External Auxiliary Switches Available  .. Yes, SW2-US

Electrical Connections  ......................... Enclosed screw terminal strip 

(22 to 14 AWG)

Environmental Rating  ........................... NEMA2; IP54

Frequency  ............................................ 50 Hz, 60 Hz

Manual operation  ................................. Declutch mechanism

Mounting  .............................................. Direct Coupled

Maximum Noise Rating, 

Driving (dBA @ 1m) .............................. 40

Timing, Nominal Driving at 60 Hz  ........ 95 sec.

Power Consumption, Driving  ............... 6 VA/6 W

Rotation to Open  .................................. By switch

Rotational Stroke Adjustment ............... Dual Integral Adj. Stops 

(3 degree increments)

Compatible Damper Shafts .................. 3/8 to 1.06 round or 3/8 to 

11/16 square

(10 to 27 round or 10 to 18 

square) 

Shaft Adapter Type  .............................. Self-centering clamping

Supply Voltage  ..................................... 24 Vac ±15%

Materials ............................................... Plenum rated plastic housing

Operating Humidity Range (% RH) ...... 5 to 95% RH, non-condensing

Ambient Temperature Range  ............... -5 F to 140 F (-20 C to 60 C) 

Storage Temperature Range ................ -40 F to 175 F (-40 C to 80 C) 

Weight  .................................................. 3.2 lb (1.45 kg) 

Includes  ............................................... Mounting bracket, self-

centering shaft adapter

Comments ............................................ Integral 1/2 in. NPSM conduit 

connection.

APPROVALS
CE  ........................................................ 89/336/ECC, 73/23/EEC

C-Tick ................................................... N314

Underwriters Laboratories, Inc.  ........... UL873, Plenum Rated

Canadian Underwriters 

Laboratories, Inc.  ................................. cUL C22.2 No. 24-93

• Control for air damper applications with up to 50 sq ft 

assuming 3.5 lb-in. per sq ft of damper area, velocity 
independent. 

• Patented 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. 
• CE approved. UL approved.

M18923

3-15/16

(100)

SHAFT

ADAPTER

SHAFT

ADAPTER

(REVERSED)

1-3/16

(20.6)

MIN 2-3/8 (60)

ANTI-ROTATION

BRACKET

9-1/16[+/-1/64] (230 [+/-.5])

25/32 (20)

9/32 (7)

25/128 [+0.002-0.004] 

(5) [+0.05-0.10]

1/2 (13)

5/64 (2)

95°

1-7/8 (48)

8-25/32

(223)

5-3/16 (132)

3-5/8 (92)

Non-Spring Return Direct Coupled Actuator

N20 Series (mN6120; mN7220)