Honeywell ML6161 Series User Manual

PRODUCT DATA
® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
All Rights Reserved
Þ
63-2209-8
35 and 70 lb-in.
Non-Spring Return
Direct Coupled Actuators
ML6161, ML7161, ML6174, ML7174
APPLICATION
The 35 and 70 lb-in. Non-Spring Return Direct Coupled
Actuators (DCA) are control actuators that provide floating or
proportioning control for valves and dampers. The
proportioning actuators accept a current or voltage signal from
a controller to position the damper or valve at any chosen
point between fully open and fully closed. Floating actuators
are suitable for use with single pole double throw (spdt)
floating thermostats or two-position control systems.
Two-position control requires installation of the 201052B
Auxiliary Switch.
FEATURES
• Selectable 45°, 60°, or 90° stroke in both clockwise
(cw) or counterclockwise (ccw) directions.
• 0° to 30° minimum position adjustment (cw or ccw
direction) on all models.
• Magnetic coupling eliminates the need for mechanical
stops.
• Two field-addable auxiliary switches.
• Auxiliary feedback potentiometer field-addable on
select models.
• Manual declutch on all models.
• ML7161 and ML7174 models include standard reverse/
direct acting rotation switch on outside cover.
• W7620 Terminal Unit Controller compatibility.
• Commercial zone damper in W7600 Commercial Zone
System compatibility.
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Specifications ................................................................... 2
Ordering Information ........................................................ 2
Installation ........................................................................ 5
Operation .......................................................................... 10
Checkout .......................................................................... 12

Honeywell ML6161 Series Specifications

General

Brand	Honeywell
Model	ML6161 Series
Category	Controller
Language	English

Summary

Product Overview

Application Details

Describes the product's use for controlling valves and dampers in HVAC systems.

Key Features

Highlights selectable stroke, minimum position adjustment, magnetic coupling, and auxiliary switches.

Specifications

Actuator Specifications

Details electrical ratings, torque, stroke, timing, temperature, environmental protection, and design life.

Mounting, Approvals, and Accessories

Covers mounting, shaft requirements, certifications, noise output, and optional accessories.

Ordering Information

Installation

Preparation and Mounting

Steps before mounting, shaft determination, and attachment to the damper housing or valve linkage.

Mounting Precautions

Warnings regarding uneven mounting, shaft adapter usage, and potential actuator damage.

Operation and Control

VAV System Operation

Explanation of VAV systems and how actuators are used for temperature control and airflow modulation.

Thermostat Control Methods

Describes using T641 and T6984 thermostats for controlling actuator operation in systems.

Rotation Reversal Switch

Instructions on how to reverse actuator rotation direction using the built-in slide switch.

Parallel Actuator Wiring

Guidelines for wiring multiple actuators in parallel for coordinated control and load management.

Checkout and Verification

ML6161/ML6174 Verification

Steps to check the operational status of ML6161 and ML6174 actuators after installation.

ML7161/ML7174 Verification

Steps to check ML7161/ML7174, including impedance, input signals, and drive relationships.