Honeywell ML7174 is used to control dampers in HVAC application and for mounting on ball valves. Use with modulating (2-10 Vdc) thermostats or building automation controls
ML7174A2001/U
2-10 Vdc, 4-20 mA Actuator with 70 lb-in., non-spring return, 24 Vac ±20%
Overview
Honeywell ML7174 is used to control dampers in HVAC application and for mounting on ball valves. Use with modulating (2-10 Vdc) thermostats or building automation controls
Features
- Control for air damper applications with up to 20 sq. ft. assuming 35 in-lb per sq. ft. of damper area, velocity independent
- Control for air damper applications
- Magnetic coupling eliminates limit switches or mechanical stops by limiting stall torque to 130 lb-in. maximum
- Includes manual declutch lever and bag assembly with two minimum position setscrews
- Selectible 45-, 60- and 90-degree stroke in either clockwise or counterclockwise direction
- Ninety-second timing models for use with pressure independent VAV systems
Product Specifications
- Application
- HVAC
- Dimensions (in.)
- 5.55 in high x 3.39 in wide x 3.0 in deep
- Dimensions (mm)
- 141 mm high x 86 mm wide x 76 mm deep
- Includes
- 4074ENY Bag Assembly
- Weight (lb)
- 2.4 lb
- Weight (kg)
- 1.1 kg
- Materials
- Steel plate and Plenum rated plastic
- Mounting
- Direct Coupled
- Frequency
- 50 Hz; 60 Hz
- Approvals, Underwriters Laboratories Inc.
- UL873, Plenum Rated
- Electrical Connections
- Screw terminals
- Operating Humidity Range (% RH)
- 5 to 95% RH, non-condensing
- Supply Voltage
- 24 Vac ±20%
- Power Consumption
- Driving-- 5.4 VA
- Shipping and Storage Temperature Range (F)
- 20 F to 130 F
- Shipping and Storage Temperature Range (C)
- -18 C to +54 C
- Approvals, Canadian Underwriters Laboratories Inc.
- cUL C22.2 No. 24-93
- Ambient Temperature Range (F)
- 20 F to 125 F
- Ambient Temperature Range (C)
- -18 C to +50 C
- Environmental, Electrical or Ingress Protection Rating
- NEMA 1
- Internal Auxiliary Switch
- 0
- Maximum Noise Rating
- Driving (dB(A) @ 1m)-- 45
- Stroke
- 90 degrees
- Shaft Dimensions (in.)
- 3/8 to 1/2 in. square or round
- Actuator Type
- Damper
- Control Signal
- 2-10 Vdc; 4-20 mA
- Fail Safe Mode
- Non-Spring Return
- Torque Rating (lb-in.)
- 70 lb-in.
- Torque Rating (Nm)
- 8 Nm
- Additional Torque Ratings (lb-in.)
- Maximum Stall-- 130 lb-in.
- Additional Torque Ratings (Nm)
- Maximum Stall-- 15 Nm
- External Auxiliary Switches Available
- Yes, 201052B
- Rotation to Open
- By switch
- Rotational Stroke Adjustment
- Mechanically limited at 45 or 60 degrees in CW or CCW directions
- Timing, Nominal
- Driving @ 60 Hz-- 90 sec
- Shaft Adapter Type
- Aluminum Hub, two set screws
- Manual operation
- Declutch mechanism
- Shaft Dimensions (mm)
- 10 to 13 mm square/round
- Spring Return Direction
- Stem down on power failure
- Input Impedance
- 45K ohm (2-10 Vdc signal), 536 ohm (4-20 mA signal)
