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ML6131 DIRECT COUPLED ACTUATOR

3

63-2498—2

Fig. 1. Approximate dimensions of ML6131 

Direct Coupled Actuator in in. (mm).

INSTALLATION

When Installing this Product...

1.

Read these instructions carefully. Failure to follow them 
could damage the product or cause a hazardous 
condition.

2.

Check the ratings given in the instructions and on the 
product to make sure the product is suitable for your 
application.

3.

Installer must be a trained, experienced service 
technician.

4.

After installation is complete, check out product 
operation as provided in these instructions.

IMPORTANT

All wiring must agree with applicable codes, 
ordinances and regulations.

WARNING

Explosion Hazard.
A spark from the actuator or attached accessories 
can result in serious injury or death.
Install the actuator in areas free of escaping gas and 
other explosive vapors.

CAUTION

Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment 
circuitry.
Disconnect all power supplies before installation. 
Actuators with auxiliary switches can have more than 
one disconnect.

CAUTION

Actuator Damage Hazard.
Deteriorating vapors and acid fumes can damage 
the actuator metal parts.
Install actuator in areas free of acid fumes and 
deteriorating vapors.

Location

Choose a location for the actuator that allows enough 
clearance for mounting accessories and for servicing.

Mounting

These actuators are designed to open a damper or valve by 
driving the shaft in either the clockwise (cw) 

or 

counterclockwise (ccw) 

direction. The actuator has a 

mounting tab on the bottom that secures it to a damper box or 
valve linkage. When mounted correctly, this tab allows the 
actuator to float without rotating relative to the shaft. The tab is 
sized for 1/4 in. self-tapping sheet metal screws (not 
included).

CAUTION

Equipment Damage Hazard.
Tightly securing mounting tab to damper housing 
can damage actuator.
Once mounted, the actuator must be allowed to float; 
do not fully tighten the screw.

These actuators are shipped in the fully clockwise 90° position 
as viewed from the end of the damper shaft.

CAUTION

Equipment Damage Hazard.
Mounting actuator unevenly with damper housing 
can damage actuator.
Mount actuator flush with damper housing or add 
spacer between mounting tab and damper box 
housing (see Fig. 2).

Fig. 2. Mounting actuator to VAV box when 

actuator is not flush with box.

1 (25)

M18016

CW

COM

CCW

OPTIONAL
AUXILIARY
SWITCH

11/16

(18)

3-3/8 (86)

4-1/4
(108)

4-7/8
(123)

2-7/8  (73)

1-11/16

(42)

1/8

(3)

1-5/16

(33)

7/8

(22)

2-1/2  (64)

ADD SPACER BETWEEN
DAMPER BOX AND TAB

DAMPER
SHAFT

ML6131

VAV BOX HOUSING

M4449

Содержание ML6131

Страница 1: ...erclockwise ccw directions 15 second timing model suitable for use with pressure independent VAV systems Magnetic coupling typically provides a maximum of 18 lb in stall torque eliminating the need for mechanical stops or limit switch adjustments Two field addable auxiliary switches Field addable auxiliary feedback potentiometer Models available with 0 to 30 minimum position adjustment in cw or cc...

Страница 2: ...ity 5 to 95 RH noncondensing Torque Ratings See Table 1 Minimum Life Cycle Rating 400 000 Repositions 1 5 million Actuator Timings At 50 Hz Nominal 90 18 sec 60 12 sec 45 9 sec Actuator Timings At 60 Hz Nominal 90 15 sec 60 10 sec 45 7 5 sec Damper Shaft Mounting Suitable for mounting onto 3 8 to 1 2 in square or round damper shafts secured by two 1 4 in 28 NF Allen screws Minimum damper shaft len...

Страница 3: ...n areas free of acid fumes and deteriorating vapors Location Choose a location for the actuator that allows enough clearance for mounting accessories and for servicing Mounting These actuators are designed to open a damper or valve by driving the shaft in either the clockwise cw or counterclockwise ccw direction The actuator has a mounting tab on the bottom that secures it to a damper box or valve...

Страница 4: ...ons shipped with the linkage For damper mounting proceed as follows 1 Place the actuator onto the damper shaft CAUTION Equipment Damage Hazard Improper range stop selection can damage light duty dampers Be sure to select the proper range stop 2 If the angle of the damper opening is either 45 or 60 close the actuator using the manual declutch a Disengage the hub using the declutch lever see Manual ...

Страница 5: ...The caps ensure that dust and other impurities do not enter the gear train through unused holes 5 Thread the locknut fully onto the 1 4 in setscrew 6 Insert the setscrew into the desired hole turning clockwise until resistance is encountered or the locknut contacts the housing 7 If resistance is met before the setscrew is fully inserted stop and review the initial setup procedures as detailed in s...

Страница 6: ...h the characteristics of both the power supply and the actuator Screw terminals are provided for easy hookup See Fig 9 for typical wiring Auxiliary Switches The 201052A B or C Auxiliary Switch is used in conjunction with the actuator It allows for control of equipment external to the actuator for example electric reheat coils and fan at an adjustable point in the stroke 0 to 90 of the actuator The...

Страница 7: ...an result in improper resistance values at desired stroke To Calibrate the 200976A C IMPORTANT Remove the range stop pins and minimum position setscrews prior to calibration 1 Drive the actuator fully closed 0 to fully open 90 and back again to the fully closed position This must be done to receive the correct resistance readings at the appropriate degree of stroke 2 Check the resistance values of...

Страница 8: ... the faster 15 second ML6131 models Parallel Actuators IMPORTANT Over time parallel driving actuators can become out of sync with each other Normally driving all actuators to the fully open or fully closed position puts them back in sync Using Fig 9 parallel the CW COM and CCW terminals Make certain the total connected load does not exceed the current capacity of the controller or thermostat CHECK...

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