Honeywell MS4120F User Manual

PRODUCT DATA
Put Bar Code Here
63-2584-10
MS4120F; MS4620F; MS8120F;
S2024-F; S20230-F Fast-Acting,
Two-Position Actuators
APPLICATION
The MS4120F, MS4620F, MS8120F, S2024-F, and S20230-F
Fast-Acting, Two-Position Actuators are spring return direct
coupled actuators (DCA) for on/off damper control. The
actuator accepts an on/off signal from a single-pole, single-
throw (spst) controller. Reversible mounting allows actuator to
be used for either clockwise (cw) or counterclockwise (ccw)
spring rotation.
Designed to operate reliably in smoke control systems
requiring Underwriter’s Laboratories Inc. UL555S ratings up to
350°F.
APPLICABLE LITERATURE
— Specification Data Sheet 63-2592
— Motor/Actuator Selection Guide
for Damper Applications 63-8419
— Engineering Manual of Automatic Control
(also called The Gray Manual) 77-1100
— Direct Coupled Actuator
Quick Selection Guide 63-8553
— Damper Torque Calculator 63-8437
FEATURES
• 175 lb-in. (20 Nm) minimum driving torque at 350°F
(176°C).
• Reversible mounting facilitates use in either clockwise
(cw) or counterclockwise (ccw) spring rotation.
• Integral spring return ensures level of return torque.
• Stainless steel internal spring.
• Fifteen-second spring return timing.
• No special cycling required during long-term holding.
(See Operation section.)
• No audible noise during holding.
• Patent pending design eliminates need for limit
switches to reduce power consumption.
• Models available for 24, 120, and 230 Vac applications.
• Ninety-five degree angle of rotation.
• Actuator holds rated torque at reduced power level.
• Die-cast aluminum housing.
• Housing design allows flush mounting to damper.
• Self-centering shaft adapter (SCSA), patent pending.
• Designed to operate reliably in smoke control systems
requiring Underwriter’s Laboratories Inc. UL555S
ratings up to 350°F.
MS4120F, MS4620F, MS8120F
• High temperature Teflon
®
lead wires.
• Models available with integral high temperature (350°F)
SPST position-indicating switches (7°, 85° stroke).
S2024-F, S20230-F
• Double-insulation rating.
• High-temperature, halogen-free, silicone-free
leadwires.
• Models available with integral high temperature (350°F)
SPDT position-indicating switches (7°, 85° stroke).

Honeywell MS4120F Specifications

General

Brand	Honeywell
Model	MS4120F
Category	Controller
Language	English

Summary

Product Features

High Torque and Spring Return

175 lb-in. driving torque at 350°F and integral spring return for reliable operation.

Mounting Flexibility

Reversible mounting and self-centering shaft adapter for easy installation.

Smoke Control Compliance

Designed for reliable operation in smoke control systems with UL555S ratings up to 350°F.

Model Specific Features

Details specific features for MS4120F/MS4620F/MS8120F and S2024-F/S20230-F models.

Application Overview

Two-Position Actuator Function

Spring return direct coupled actuators for on/off damper control via SPST signals.

Smoke Control System Operation

Designed for reliable operation in smoke control systems requiring UL555S ratings up to 350°F.

Applicable Literature

Specification Data Sheet

Provides detailed specifications for the actuators.

Motor/Actuator Selection Guide

Assists in selecting the appropriate motor or actuator for damper applications.

Engineering Manual of Automatic Control

Comprehensive guide for automatic control systems.

Quick Selection Guide

Quick guide for selecting direct coupled actuators.

Damper Torque Calculator

Tool for calculating damper torque requirements.

Specifications

Model Identification

Details model numbers, voltage, and auxiliary switch configurations.

Physical Characteristics

Information on device weight and stroke length.

Electrical Ratings and Consumption

Covers power input, consumption for driving and holding, and voltage requirements.

Wiring and Connections

Details lead wire types and conduit connection specifications.

Timing and Switch Operation

Specifies drive and spring return timing, and auxiliary switch settings.

Torque and Performance Ratings

Defines torque ratings for holding, spring return, and stall conditions.

Design Life and Durability

Information on design life cycles and operational requirements.

Mounting and Installation Considerations

Details on mounting, shaft adapter, and linkage recommendations.

Environmental and Noise Ratings

Covers noise levels, vibration tolerance, temperature, and humidity ratings.

Controller Type Compatibility

Specifies compatible controller types for different actuator models.

Actuator Selection

MS Series Selection

Guide to selecting MS Series actuators based on motor, fail-safe function, and control type.

S20 Series Selection

Guide to selecting S20 Series actuators based on fail-safe function, voltage, and control type.

Product Approvals

Details agency approvals such as UL/cUL, CE, and C-TICK for specific models.

Installation Guide

Pre-Installation Checks

Instructions for careful reading, rating checks, and technician qualifications.

Location and Mounting Orientation

Guidance on actuator location and determining appropriate mounting orientation.

Shaft Measurement and Coupling

Instructions for measuring damper shaft length and adjusting shaft coupling.

Mounting Procedures

Step-by-step instructions for mounting the actuator to the damper housing.

Torque Tightening

Ensuring proper shaft coupling tightening to prevent malfunction or damage.

Manual Positioning and Wiring

Manual Actuator Operation

How to operate the actuator manually using a hex wrench when power is off.

Wiring Diagrams

Provides typical wiring diagrams for 24 Vac, 120 Vac, and 230 Vac models.

Operation and Checkout

Actuator Operation in Smoke Control

How actuators operate in smoke control systems and their spring return function.

Cycling Requirements

No special cycling is required for long-term holding of the actuator.

Auxiliary Switch Functionality

Explanation of SPST and SPDT auxiliary switch operation and contacts.

Model Checkout Procedures

Step-by-step checkout for 120 Vac, 230 Vac, and 24 Vac models.

Assembly and Disassembly

Assembly Steps

Illustrated steps for assembling the actuator to the damper.

Disassembly Steps

Illustrated steps for safely disassembling the actuator.