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ML6284 NON-SPRING RETURN DIRECT COUPLED DAMPER ACTUATOR

63-2505

2

ORDERING INFORMATION

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the 

TRADELINE® Catalog or price sheets for complete ordering number.

If you have additional questions, need further information, or would like to comment on our products or services, please write or 

phone:

1.

Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).

2.

Honeywell Customer Care

1885 Douglas Drive North

Minneapolis, Minnesota 55422-4386

In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.

International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, 

Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

SPECIFICATIONS

Models:

ML6284: Non-Spring Return Direct Coupled Damper Actua-

tors.

ML6284A: High Torque (150 lb-in.) Direct Coupled Damper 

Actuator without auxiliary switches or time-out function.

ML6284C: High Torque (150 lb-in.) Direct Coupled Damper 

Actuator with two low voltage rated auxiliary switches and 

without time-out function.

ML6284D: High Torque (150 lb-in.) Direct Coupled Damper 

Actuator without auxiliary switches and with time-out 

function.

ML6284F: High Torque (150 lb-in.) Direct Coupled Damper 

Actuator with two low voltage auxiliary switches and with 

time-out function.

Electrical Ratings:

Power Input: 24 Vac ± 20%, 50/60 Hz.

Power Consumption:

ML6284A-C: 5 VA maximum at 24 Vac.

ML6284D,F: 6 VA maximum at 24 Vac.

Auxiliary Switch Ratings: 24 Vac, 3 AFL, 18 ALR, 1A Pilot 

Duty.

Feedback Resistor: 

500 ohm linear potentiometer.

Cable Ratings:

Control: Standard models include nonplenum UL/CSA rated, 

30V, 60°C, 20 gauge cable.

Auxiliary Switch: UL/CSA rated 300V 90°C, 18 gauge.

Controller Type: Floating, spdt.

Torque Ratings at Rated Voltages: 

Lift and Hold Minimum: 150 lb-in. (17 N•m).

Breakaway Minimum: 150 lb-in. (17 N•m).

Stall Minimum: 150 lb-in. (17 N•m).

Stall Maximum: 250 lb-in. (28.3 N•m).

Torque Deratings at 24 Vac ±20%:

150 lb-in. from -20°F to +95°F (-29°C to +35°C).

133 lb-in. from 95°F to 140°F (35°C to 60°C).

150 lb-in. from -40°F to -20°F (-40°C to -29°C) (at 24 Vac 

+20% only).

Actuator Stroke: 

95° Nominal ± 3°, mechanically limited.

Actuator Timing at 90° Stroke:

92 ± 2 seconds synchronous at 60 Hz from -4°F to 140°F 

(-20°C to +60°C).

110 ± 2 seconds synchronous at 50 Hz from -4°F to 140°F 

(-20°C to +60°C).

Non synchronous below -4°F (-16°C).

Ambient Temperature Range: 

-30°F to +140°F (-35°C to 

+60°C).

Storage Temperature:  

-30°F to 150°F (-35°C to 65°C).

Humidity:  

5 to 95 percent relative humidity, noncondensing.

Mounting:

Mounts directly on horizontal 3/8 in. to 5/8 in. (12 to 17 mm) 

round or square or 3/4 in. (19 mm) round damper shaft. 

Minimum shaft length required: 

• 2.5 in. (64 mm) when the shaft attachment is made on the 

side of the actuator opposite the duct; 

• 0.65 in. (16 mm) when the hub is mounted on the shaft 

before the actuator is installed. 

Most actuators are shipped with specifically sized hubs. Some 

models contain an assembly with assorted hub inserts. 

Mounting bracket is included with most models.

Dimensions: 

See Fig. 1.

Device Weight:  

3.0 lb (1.36 kg).

Noise Rating:  

Driving Only: 45 dBA maximum at 1.0m.

Position Indicator: 

Mounted on actuator hub.

Actuator Design Life:  

Full Stroke Cycles:100,000.

Repositions: 

2,000,000 minimum.

Approvals:

UL94-5V Enclosure: Plenum rating.

UL873: Low voltage auxiliary switches.

UL Listed: File number E4436, Guide number XAPX.

CSA Listed: File number LR95329-17.

Содержание ML6284

Страница 1: ...it switch adjustments by limiting stall torque to 250 lb in 28 3 N m maximum 95 stroke provides necessary compression of rubber neoprene gaskets commonly used on 90 low leakage dampers Manual clutch allows for manual adjustment 92 second synchronous timing can eliminate need for feedback position indication in closed loop temperature control applications Removable splined output hub permits premou...

Страница 2: ...t Duty Feedback Resistor 500 ohm linear potentiometer Cable Ratings Control Standard models include nonplenum UL CSA rated 30V 60 C 20 gauge cable Auxiliary Switch UL CSA rated 300V 90 C 18 gauge Controller Type Floating spdt Torque Ratings at Rated Voltages Lift and Hold Minimum 150 lb in 17 N m Breakaway Minimum 150 lb in 17 N m Stall Minimum 150 lb in 17 N m Stall Maximum 250 lb in 28 3 N m Tor...

Страница 3: ...or and mounting bracket in in mm 9 32 7 3 PLACES 1 17 32 39 3 3 32 79 4 102 7 16 11 1 1 4 32 7 11 16 196 8 7 16 215 36 914 1 2 12 5 8 17 13 32 10 1 2 13 3 4 19 7 8 22 1 25 3 5 32 80 1 2 13 1 2 13 1 11 16 43 2 1 2 63 3 5 16 84 4 1 2 114 5 127 6 152 1 4 6 1 1 REMOVABLE RETAINING RING FOR REMOVAL OF HUB SLEEVE M7618B 1 4 6 1 8 3 2 51 15 16 24 1 29 32 48 ...

Страница 4: ...ing accessories and for servicing Mounting The ML6284 Non Spring Return Direct Coupled Damper Actuator is designed to operate a damper by driving the damper shaft either cw or ccw depending on damper design All actuators are shipped in the fully closed position The ML6284 Non Spring Return Direct Coupled Damper Actuator is designed with removable hub inserts to accommodate specific damper shaft si...

Страница 5: ...e bracket tab is midway in the actuator slot Mark the screw holes for installing the mounting bracket on the damper housing 4 Remove the mounting bracket and actuator 5 Drill or center punch the starting holes for the mounting bracket screws or use no 10 self tapping sheet metal screws not supplied 6 Place the actuator and mounting bracket back into position over the damper shaft and install the m...

Страница 6: ...act It stops when neither contact is made IMPORTANT The ML6284 can operate with DDC controller that emulates an spdt break before make switch Do not short cycle the actuator Short cycling of the actuator can cause premature failure The actuator has a position indicator to show shaft position As the indicator moves with the shaft it gives an angular representation of the damper position There are f...

Страница 7: ...NS AND OVERLOAD PROTECTION AS REQUIRED 500 OHM POTENTIOMETER ORANGE OPEN TAN GREEN CLOSED L1 HOT L2 1 1 2 2 3 3 MOTOR TIME OUT 24 VAC B BLUE W YELLOW T2 RED T1 BLACK ML6284 M4884A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED TIME OUT FUNCTION AVAILABLE WITH ML6284D F MODELS 500 OHM POTENTIOMETER ORANGE OPEN TAN GREEN CLOSED 12 82 M7877A COMMON COMMON NO NO NC NC WHITE ...

Страница 8: ...s low check power supply and controller 3 If the actuator does not drive in the correct direction when a control signal is applied reverse the yellow and blue wires 4 Remove power and fully depress and hold disengage button down while turning damper shaft clockwise and counterclockwise If the damper shaft turns freely through the entire 90 stroke and the actuator is installed correctly replace the...

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