Honeywell ML6185 User's Manual
Contents
1. WHITE YELLOW BLACK RED 82 BLACK BLUE p BLACK YELLOW M7227A AUX SWITCHES 3A 120 VAC Connecting ML6185 Actuators in Parallel ML6185 Actuators can be stacked on one damper shaft to increase the output torque required to drive dampers larger than 16 square feet To make sure proper phasing occurs connect all four Fig 10 Common transformer with two controller outputs and two actuators ML6185 ML6185 A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M2254 ML6185 INSTALLATION OPERATION leadwires red black yellow and blue in parallel The number of actuators that may be wired in parallel is depen dent on the transformer VA rating Make certain that the connected load does not exceed the current capacity of the controller thermostat See Fig 10 and 11 Fig 11 Common transformer with one controller output and two actuators ML6185 CONTROLLER ML6185 A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED wine Operation The ML6185 Direct Coupled Actuator is designed to be used in ventilating and air conditioning installations to operate dampers ventilation flaps and louvers requiring up to 50 Ib in torque If the power fails the actuator will spring return to the starting position The actuator is de signed for reversible mounting Arrows are molded into the covers to show the spring return direction The larger cover2. check for the presence of 24 Vac in the input 5 Make sure the actuator spring is fully wound by applying power for at least 100 seconds 6 If24 Vac is present and the actuator does not operate reverse the controller leadwires to determine if the device was miswired 7 Ifthe wiring is correct and 24 Vac is present on the input terminals but the actuator does not run replace the actuator 63 2483 2 Honeywell Home and Building Control Honeywell Inc 1985 Douglas Drive North Golden Valley MN 55422 Printed in U S A Home and Building Control Honeywell Limited Honeywell Limit e 740 Ellesmere Road Scarborough Ontario MIP 2V9 Helping You Control Your World QUALITY IS KEY
3. 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 connection The ML6185 has an aluminum die cast housing with two integral cast bosses on the end of the device tapped for 1 2 in conduit fittings Some models are shipped with a water seal in the conduit opening When conduit is needed remove the seal before routing the cable ML6185 models with Factory mounted Auxiliary Switches See Fig 9 ML6185C F models have two nonadjustable line volt age rated spdt auxiliary switches with switches factory set to make common to normally open at 12 and 82 rotation from the counterclockwise stop See Fig 9 IMPORTANT Actuators driving in parallel may not be synchronized with each other In normal operation if all actuators are driven to the fully open or fully closed position the actuators will again be synchronized Fig 8 ML6185 typical wiring diagram ML6185 OPTIONAL TIME OUT POWER SUPPLY SPRING CONTROL L2 BLACK A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED AA TMe OUT FUNCTION AVAILABLE WITH ML6185D F MODELS M7224 Fig 9 ML6185C F wiring for auxiliary switches WHITE RED 12 WHITE BLUE
4. shows acounterclockwise ccw spring rotation the smaller cover shows a clockwise cw spring rotation The ML6185 Direct Coupled Actuator is operated by an spdt floating controller When using an spdt floating con troller the actuator will be driven toward its fully open position when the controller makes R to B and toward the fully closed position when the controller makes R to W It stops when neither contact is made IMPORTANT The ML6165 is designed to respond to instantaneous contact closures from a DDC Con troller Be careful not to short cycle the actuator Unstable damper control may cause premature actua tor failure The actuator has a position indicator to depict shaft position As the indicator moves with the shaft it gives an angular representation of the damper position There are four distinct positions where the indicator can be placed The indicator can be removed by first removing the output hub to provide proper damper orientation The indicator can be indexed to show cw or ccw open or closed using the detents that are 90 apart See Fig 12 If the spring return position is the open position rotate the indicator until it points to 90 on the scale If the spring return position is the closed position rotate the indicator until it points to zero on the scale A detent can be felt at both stops the detents maintain the indicator position The ML6185D and ML6185F models provide a time out function that removes p
5. these instructions AN CAUTION 1 Disconnect power before installation to prevent electrical shock or equipment damage 2 Never turn motor output hub by hand or with a wrench 3 Do not install actuator in areas with acid fumes or other deteriorating vapors that might attack the metal parts of the actuator 4 Do not install actuator in areas with escaping gas or other explosive vapors that could be ignited by a spark from the actuator or attached accessories LOCATION Install the actuator in any location free from acid fumes or other deteriorating vapors that might attack the metal parts of the actuator Make sure the location is not subject to escaping gas or other explosive vapors that could accidentally be ignited by a spark from the actuator or its attached parts Install the actuator in a location that allows enough clear ance for mounting accessories and for servicing MOUNTING The ML6185 Direct Coupled Actuator is designed to operate a damper by driving the damper shaft either cw Y Or ccw depending on damper design All actuators are shipped in the fully closed position The ML6185 Direct Coupled Actuator is designed for single point mounting when using an adapter bracket Single point mounting is typically used when the actuator is mounted on the damper frame 63 2483 2 A mounting bracket see Fig 1 is provided with some models to aid in installing the actuator The bracket can be bent to any shape
6. to support the actuator at the correct height The ML6185 Direct Coupled Actuator can also be three point mounted using the two front gear housing slots and the adapter bracket Secure two screws through the two front gear housing slots and position the adapter bracket to secure the rear of the actuator Three point mounting is used for foot mounting the actuator or internally mounting the actuator in the duct when direct shaft coupling is not possible N CAUTION Do not use the actuator as a shaft bearing The actuator must be used only to supply rotational torque To prevent damage to the actuator avoid any side loads to the actuator output coupling bearings PREPARATION Before installing the ML6185 on the damper shaft determine the opening direction of the damper shaft to determine the correct spring return rotation and correctly connect the wiring The ML6185 can be mounted to pro vide clockwise or counterclockwise spring return Reverse the actuator if necessary to provide the desired spring action INSTALLATION Installing the Actuator and Mounting Bracket Single Point Mounting When the direction of the damper shaft rotation is deter mined either cw Or CCW O proceed as follows 1 Place the ML6185 Direct Coupled Actuator over the damper shaft 2 Position the actuator for best access to the actuator damper shaft locking screw 3 Install the mounting bracket see Fig 2 and adjust it to support the a
7. 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 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 or specify 1 Model number 2 Application 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 Home and Building Control Sales Office check white pages of your phone directory 2 Home and Building Control Customer Logistics Honeywell Inc 1885 Douglas Drive North Minneapolis Minnesota 55422 4386 612 951 1000 In Canada Honeywell Limited Limit e 740 Ellesmere Road Scarborough Ontario MIP 2V9 International Sales and Service offices in all principal cities of the world 63 2483 2 ML6185 SPECIFICATIONS Fig 1 Approximate dimensions of ML6185 Spring Return Direct Coupled Actuator and mounting bracket in in mm gt 1 5 32 29 6 25 32 173 1 17 32 39 3 1 16 79 8 9 32 210 23 32 18 3 15 16 100 l CLEARANCE 1 2 13
8. Honeywell 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 hs M AEN D 1 lll Mounts directly on horizontal 3 8 in 1 2 in and 5 8 in round and square damper shafts by using the appropriate insert Most models are shipped with 1 2 in insert lll Provides 50 Ib in running and spring return torque lll Magnetic coupling eliminates the need for mechani cal stops or limit switch adjustments by limiting stall torque to 130 Ib in maximum lll 95 stroke provides necessary compression of rub ber neoprene gaskets commonly used on 90 low leakage dampers lll 88 second synchronous timing can eliminate need for feedback position indication in closed loop tem perature control applications lll Removable splined output hub permits premounting of the hub on the damper shaft providing installation flexibility E Reversible mounting allows actuator to be used for either clockwise cw or counterclockwise ccw spring rotation E Designed for both single point and three point mount ing providing installation flexibility G R Rev 4 95 e OHoneywell Inc 1995 Bi Available with or without a time out feature Models without the ti
9. RATINGS Power Input 24 Vac 20 50 60 Hz Power Consumption ML6185A C 12 VA maximum at 24 Vac ML6185D F 12 VA maximum at 24 Vac Auxiliary Switch Ratings 120 240 Vac 3 AFL 18 ALR 1A pilot duty Control Standard models include nonplenum UL CSA rated 30V 60 C 20 gauge cable Auxiliary Switch UL CSA rated 300V 90 C 18 gauge TORQUE RATINGS at Rated Voltages Lift and Hold 50 10 10 6 Nem Breakaway Minimum 50 Ib in 6 Nem Stall Minimum 50 Ib in 6 Nem spring return Specifications Stall Driving Maximum 130 Ib in 15 Nem ACTUATOR STROKE 95 Nominal 2 mechanically limited ACTUATOR TIMING at 90 Stroke 88 2 seconds synchronous at 60 Hz from 0 F to 140 F 106 2 seconds at 50 Hz 100 seconds at 30 F Spring Wind Timing Upon Power Restoration Only 100 seconds nominal at 60 Hz 120 seconds at 50 Hz Spring Return Timing 10 seconds minimum per 90 at 72 F no load 30 seconds maximum per 90 at 72 F at rated load 5 minutes maximum at 30 F at rated load 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 16 mm round or square damper shaft Minimum shaft length required 3 5 in 76 mm when the shaft attachment is made on the side of the actuator opposite the duct 0 65 in 16 mm
10. ctuator at the correct height Mark the screw holes for installing the mounting bracket on the damper housing 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 Ib in Fig 2 Installing mounting bracket on ML6185 Direct Coupled Actuator Installing the Actuator for Three Point Mounting The ML6185 Direct Coupled Actuator is designed with removable hub sleeves to accommodate specific damper shaft sizes Proper sleeve selection is necessary when three point mounting is used to avoid excessive strain on the output gear Most ML6185 Actuators are shipped with a 1 2 in hub sleeve For field use several hub sleeve sizes are available See the Accessories listing in the Specifications section Shaft sizes are stamped on the sleeves The ML6185 Direct Coupled Actuator can be mounted directly on the motor shaft with the actuator in any position when the actuator housing is parallel with the damper housing or frame See Fig 7 The ML6185 Direct Coupled Actuator has a reversible output hub The hub is factory mounted on the top of the actuator gear housing When attach
11. eturn remaining at power interrupt i e 10 of spring return remaining takes 10 seconds If the actuator is not in the closed position it will run to the closed position as the spring is winding Once the spring is locked in its fully wound position the actuator responds to inputs to the red to blue or red to yellow leadwires DIRECT CHECKOUT 1 Mount the actuator for the required application either or ccw rotation to open the damper 2 Check the damper position and make sure that 24 Vac is present on the red and black leadwires 3 Make sure the actuator spring is fully wound and locked by applying power for at least 100 seconds CW 11 ML6185 CHECKOUT Checkout 4 Connect 24 Vac to the appropriate leadwires red to blue or red to yellow to move the damper to the opposite position The ML6185 should drive the damper 5 If the actuator does not run verify that the actuator is properly installed for either cw Or ccw rotation 6 If the actuator operates in the opposite direction than desired reverse the blue and yellow leadwires 7 If the actuator is correctly installed and still does not run replace the actuator CONTROLLER CHECKOUT 1 Adjust the setpoint of the controller to call for cooling Observe the actuator 2 If the damper is closed it should begin to open 3 Ifthe damper remains closed move the setpoint of the controller farther below the room temperature 4 If the damper still does not move
12. ing to damper shafts less than 3 5 in 76 mm long or for ease of mounting the output hub can be mounted to the inside ofthe actuator gear housing See Fig 3 Be careful when removing the retain ing ring that secures the output hub to the actuator housing Use a flatheaded screwdriver to pry the ring loose Fig 3 Mounting hub to inside of actuator INDICATOR DETENTS 5 63 2483 2 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 amp p Q Y 2 INDICATOR DETENTS AM y S N counter CLOCKWISE SPRING ROTATION ARROW M7230A 63 2483 2 6 ML6185 INSTALLATION Fig 5 Standard direct coupled mounting of ML6185 to a damper with counterclockwise spring rotation y 2 e O Q y Q 7 63 2483 2 ML6185 INSTALLATION Fig 6 ML6185 Actuator standard electrical connection TO JUNCTION BOX UP TO 3 FT AWAY MOUNTING BRACKET M7231 Fig 7 ML6185 Actuator can be mounted in any position NOTE NEMA rating applies only with damper shaft in the horizontal position 63 2483 2 WIRING N CAUTION Disconnect power supply before wiring to prevent electrical shock or
13. l REQUIRED FOR SPLINED 3 29 32 99 HUB MOUNTING ted a ek tee eee 13 32 3 4 19 10 413 32 112 1 5 8 41 E M 264 MOUNTING BRACKET M8257 3 63 2483 2 ML6185 SPECIFICATIONS INSTALLATION DEVICE WEIGHT 4 0 Ib 1 82 kg NOISE RATING Driving only 45 dBA maximum at 0 9m SPRING ROTATION Clockwise cw counterclockwise ccw by reverse mounting POSITION INDICATOR Mounted on actuator hub ACTUATOR DESIGN LIFE Full Stroke Cycles 60 000 Repositions 1 500 000 Spring Return Cycles 7 500 APPROVALS UL94 5V Enclosure Plenum rating UL873 Line voltage auxiliary switches CSA FILE NUMBER E4436 Guide Number XAPX ENVIRONMENTAL PROTECTION RATINGS NEMA1 standard with damper shaft in horizontal position MOUNTING TAB Foruse with Universal mounting bracket ACCESSORIES 205820A 3 Point Mounting Kit 205830A Crank Arm Accessory 205753 Hub Sleeve 3 8 in 205758 Hub Sleeve 5 8 in Installation WHEN INSTALLING THIS PRODUCT Read these instructions carefully Failure to follow them could damage the product or cause a hazardous condition 2 Check the ratings and description given in this specifi cation to make sure the productis suitable for your application 3 Installer must be a trained experienced service technician 4 After installation is complete check out product op eration as provided in
14. me out feature are designed to be used with intelligent building management system and or controller ll Standard models have two 8 mm x 12 mm long set screws for securing the damper shaft Actuator models are available for various shaft sizes that will allow the damper shaft to operate centered inside the output hub Bl Standard one meter cable with color coded lead wires allows external wire connections with 1 2 in conduit connectors lll Can mount two or more actuators on one damper shaft to increase output torque for use on dampers larger than 16 square feet CONTENTS Specifications eese ene 2 Ordering Information eese 2 Installation icones 4 Op r lti n 9 CHECKOUT uestes cisetarsadeaeladelessieceenle 11 63 248 483 2 ML6185 SPECIFICATIONS ORDERING INFORMATION MODELS ML6185 Spring Return Direct Coupled Rotary Actuators ML6185A Medium Torque 50 Ib in Direct Coupled Rotary Actuator without auxiliary switches and without time out function ML6185C Medium Torque 50 b in Direct Coupled Rotary Actuator with two line voltage rated aux iliary switches without time out function ML6185D Medium Torque 50 Ib in Direct Coupled Rotary Actuator without auxiliary switches and with time out function ML6185F Medium Torque 50 Ib in Direct Coupled Rotary Actuator with two line voltage auxiliary switches and time out function ELECTRICAL
15. ower from the actuator sub motor if the actuator remains in one position closed open or any intermediate position for longer than a nominal 100 seconds This time out function helps to extend actuator life IMPORTANT The ML6185 was designed to provide 7500 spring returns therefore the actuator can be unpowered daily for night shutdown control However rapidly cycling the actuator by removing control voltage will lead to premature spring failure 63 2483 2 ML6185 OPERATION Fig 12 ML6185 indicator start positions FULLY COUNTERCLOCKWISE SPRING RETURN INDICATOR START POSITIONS POINTER AT 90 POINTER AT 0 DETENT IN INSERT DRIVE CLOCKWISE TO CLOSE REVERSE ACTING DETENT IN INSERT DRIVE CLOCKWISE TO OPEN DIRECT ACTING FULLY CLOCKWISE SPRING RETURN INDICATOR START POSITIONS POINTER AT 90 POINTER AT 0 DETENT IN INSERT DETENT IN INSERT DRIVE COUNTERCLOCKWISE DRIVE COUNTERCLOCKWISE M7235B TO CLOSE REVERSE ACTING TO OPEN DIRECT ACTING 63 2483 2 10 The ML6185 Direct Coupled Actuator can be checked out either directly or by using a controller IMPORTANT When power is interrupted the actuator returns to the normal starting position using the spring mechanism When power is restored the controller input will not operate the actuator until the spring is fully wound and locked The spring winding process takes approximately 100 seconds depending on the number of degrees of spring r
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