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ML6185
Spring Return
Direct Coupled Actuator
The ML6185 Spring Return Direct Coupled
Rotary Actuator is a floating control motor that can
be used with controls that provide switched or
floating single pole double throw (spdt) control
output to operate dampers in heating, ventilation,
and air conditioning (HVAC) applications.
n Mounts directly on horizontal 3/8 in., 1/2 in., and n Available with or without a time-out feature. Models
5/8 in. round and square damper shafts by using the without the
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ML6185 SPECIFICATIONS • ORDERING INFORMATION Specifications MODELS: ML6185 Spring Return Direct Coupled Rotary Stall Driving Maximum: 130 lb-in. (15 N•m). Actuators. ACTUATOR STROKE: 95° Nominal ± 2°, mechanically ML6185A: Medium Torque (50 lb-in.) Direct Coupled limited. Rotary Actuator without auxiliary switches and ACTUATOR TIMING at 90° Stroke: without time-out function. 88 +/- 2 seconds synchronous at 60 Hz from 0°F to ML6185C: Medium Torque (50 lb-in.) Direct Coupled 140°F; Rotary Actuator
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ML6185 SPECIFICATIONS Fig. 1—Approximate dimensions of ML6185 Spring Return Direct Coupled Actuator and mounting bracket in in. (mm). 1-5/32 (29) 6-25/32 (173) 1-17/32 (39) 3-1/16 (79) 8-9/32 (210) 3-29/32 (99) 23/32 3-15/16 (100) (18) 1-21/32 (42) 3-1/2 (89) 1-5/8 1-9/32 (41) (32) CLEARANCE 1/2 (13) REQUIRED 3-29/32 FOR SPLINED (99) HUB MOUNTING 1-13/32 1-3/32 (36) (28) o 135 o ± 15 13/32 13/64 (5) (10) 3/4 (19) 5/16 (8) 3/8 1-13/32 (36) (10) 4-13/32 (112) 1-5/8 (41) 10-13/32 (264
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ML6185 SPECIFICATIONS • INSTALLATION DEVICE WEIGHT: 4.0 lb (1.82 kg). UL873: (Line voltage auxiliary switches). NOISE RATING: (Driving only) 45 dBA maximum at CSA: FILE NUMBER E4436, Guide Number XAPX. 0.9m. ENVIRONMENTAL PROTECTION RATINGS: NEMA1 SPRING ROTATION: Clockwise (cw); counterclockwise standard with damper shaft in horizontal position. (ccw) by reverse mounting. MOUNTING TAB: For use with Universal mounting bracket. POSITION INDICATOR: Mounted on actuator hub. ACCESSORIES: ACTUATOR
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.500 ML6185 INSTALLATION 4. Remove the mounting bracket and actuator. 6. Place the actuator and mounting bracket back into 5. Drill or center punch the starting holes for the mount- position over the damper shaft and install the mounting ing bracket screws (or use no. 10 self-tapping sheet metal bracket screws. screws). 7. Tighten the two 8 mm x 12 mm long set screws firmly against the damper shaft (maximum tightening torque is 100 lb-in.). Fig. 2—Installing mounting bracket on ML6185 Direct Cou
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ML6185 INSTALLATION Other possible mounting configurations and standard connections are shown in Fig. 4 through 7. Fig. 4—ML6185 Actuator mounted for counterclockwise spring rotation with the output hub inside the actuator. (NOTE: NEMA rating applies only with damper shaft in the horizontal position.) 1 INDICATOR DETENTS 1 COUNTER CLOCKWISE SPRING ROTATION ARROW M7230A 63-2483—2 6 90 60 60 30 30 0
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.500 ML6185 INSTALLATION Fig. 5—Standard direct coupled mounting of ML6185 to a damper with counterclockwise spring rotation. M7229 7 63-2483—2 .500 90 60 60 30 30
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.500 500 ML6185 INSTALLATION WIRING Fig. 6—ML6185 Actuator standard electrical connection. CAUTION Disconnect power supply before wiring to prevent electrical shock or equipment damage. All wiring must comply with local electrical codes, ordinances and regulations. The ML6185 is designed for use with a Class 2 power supply. Voltage and frequency of the transformer used must correspond with the characteris- tics of the motor and those of the power supply. See Fig. 8 for a typical wiring connectio
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ML6185 INSTALLATION • OPERATION Connecting ML6185 Actuators in Parallel leadwires (red, black, yellow and blue) in parallel. The ML6185 Actuators can be stacked on one damper shaft number of actuators that may be wired in parallel is depen- to increase the output torque required to drive dampers dent on the transformer VA rating. Make certain that the larger than 16 square feet. connected load does not exceed the current capacity of the To make sure proper phasing occurs, connect all four cont
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ML6185 OPERATION Fig. 12—ML6185 indicator start positions. FULLY COUNTERCLOCKWISE SPRING RETURN INDICATOR START POSITIONS POINTER AT 90° POINTER AT 0° 90 90 60 60 60 60 30 30 30 30 0 0 0 0 DETENT IN INSERT DETENT IN INSERT DRIVE CLOCKWISE TO CLOSE DRIVE CLOCKWISE TO OPEN (REVERSE ACTING) (DIRECT ACTING) FULLY CLOCKWISE SPRING RETURN INDICATOR START POSITIONS POINTER AT 90° POINTER AT 0° 90 90 60 60 60 60 30 30 30 30 M7235 0 0 0 0 DETENT IN INSERT DETENT IN INSERT DRIVE COUNTERCLOCKWISE DRIVE CO
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ML6185 CHECKOUT Checkout The ML6185 Direct Coupled Actuator can be checked 4. Connect 24 Vac to the appropriate leadwires (red to out either directly or by using a controller. blue or red to yellow) to move the damper to the opposite position. The ML6185 should drive the damper. IMPORTANT: When power is interrupted, the actuator 5. If the actuator does not run, verify that the actuator is returns to the normal starting position using the spring properly installed for either cw or ccw
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Home and Building Control Home and Building Control Helping You Control Your World Honeywell Inc. Honeywell Limited—Honeywell Limitée 1985 Douglas Drive North 740 Ellesmere Road Golden Valley, MN 55422 Scarborough, Ontario M1P 2V9 QUALITY IS KEY 63-2483—2 Printed in U.S.A. 12
