Honeywell MS4103 manual ML6174 ML7174

Non-Spring Return Direct Coupled Actuator

ML6174; ML7174

Used to control dampers in applications such as variable air volume (VAV) terminal units and for mounting on ball valves; suitable for use with SPDT or floating thermostats or building automation controls.

SPECIFICATIONS
Actuator Type	Damper

FEATURES

•Control for air damper applications with up to 20 sq.ft. assuming 3.5 lb-in. per sq.ft. of damper area, velocity independent.

•Magnetic coupling eliminates the need for mechanical stops or limit switch adjustments by limiting stall torque to 130 lb-in. maximum.

•Mount directly on 3/8 to 1/2 in. round and square damper shafts. All models include manual declutch lever for ease of mounting, and bag assembly with two minimum position setscrews. 90 second timing models are suitable for use with pressure independent VAV systems.

•Selectable 45, 60, and 90 degree stroke in either clockwise or counterclockwise direction.

DIMENSIONS DIAGRAMS

Rotational Stroke	90 degrees
Fail Safe Mode	Non-Spring Return
Rated Torque	70 lb-in. (8 Nm)
External Auxiliary Switches Available ..	Yes, 201052B
Electrical Connections	Screw terminals
Environmental Rating	NEMA1
Feedback	With accessory
Frequency	50 Hz, 60 Hz
Manual operation	Declutch mechanism
Mounting	Direct Coupled
Maximum Noise Rating,
Driving (dBA @ 1m)	45
Timing, Nominal Driving at 60 Hz	90 sec., 180 sec. or 420 sec.
Power Consumption, Driving	2.4 VA or 5.4 VA
Rotation to Open	By wiring
Rotational Stroke Adjustment	Mechanically limited at 45 or
	60 degrees in cw or ccw
	directions
Compatible Damper Shafts	3/8 to 1/2 in. square or round
	(10 to 13 square/round)
Shaft Adapter Type	Aluminum Hub, two set screws
Supply Voltage	24 Vac ±20%
Materials	Steel plate and Plenum rated
	plastic
Operating Humidity Range (% RH)	5 to 95% RH, non-condensing
Ambient Temperature Range	20 F to 125 F (-18 C to 50 C)
Storage Temperature Range	20 F to 130 F (-18 C to 54 C)
Weight	1.5 lb (0.68 kg)
Includes	4074ENY Bag Assembly
APPROVALS
Underwriters Laboratories, Inc	UL873, Plenum Rated
Canadian Underwriters
Laboratories, Inc	cUL C22.2 No. 24-93

		2-7/8	(73)
			1-11/16
			(42)
	1 (25)	OPTIONAL	1/8
			(3)
		AUXILIARY
		SWITCH
CW	4-7/8
	(123)
COM	4-1/4
CCW	(108)
	11/16
	(18)		7/8
			(22)

3-3/8 (86)		1-5/16
		(33)
		2-1/2 (64)
		M18016
			1
			(25)
			5-9/16
			(141)
		24 Vac	4-7/8
			(123)
		T1	4-1/4
		T2	(108)
		-
		+
		+
		2-10 Vdc
		4-20 mA
	15/32 (12)		11/16
			(18)
	1/8
	(3)	5/16 (8)
		1-11/16
		(43)
	3-3/8 (86)
	1-13/16 (46)		3-5/8 (92)
3 IN. (76 MM)
MINIMUM SPACING
REQUIRED
FOR REMOVING
CONDUIT COVER

7/8 (22)

3-3/4 (95)

2-7/8 (73) 1-11/16

(42)

OPTIONAL
AUXILIARY	1/8
SWITCH
	(3)

1/8

(3)

1-5/16

(33)

3 (76)

M22990

1

(25)

1-13/16

(46)

5-7/8

(149)

M18018

s

submittal Sheet

89