Honeywell ML6294 Automobile Parts User Manual
Contents
1. The ML6194 ML6294 Non Spring Return DCA is designed for single point mounting when using a mounting bracket Single point mounting is typically used when actuator is mounted on a shaft The ML6194 ML6294 Non Spring Return DCA can also be three point mounted using three point mounting kit see Accessories section Three point mounting is used for foot mounting actuator or internally mounting actuator in the duct when direct shaft coupling is not possible The ML6194 ML6294 Non Spring Return DCA can be mounted directly on the shaft with the actuator in any position CAUTION Actuator and Damper Damage Hazard Mounting bracket binding or clamping actuator to duct can damage actuator Use mounting bracket only to prevent actuator housing from rotating NOTE Install mounting bracket so that mounting bracket tab is centered in actuator slot Changing Hub Inserts Change hub insert sizes by removing retaining ring and lifting hub insert from actuator Put new insert in place and replace retaining ring See Fig 4 Be careful when removing the retaining ring that secures the output hub to actuator housing Use a flathead screwdriver to pry ring loose ML6194 ML6294 NON SPRING RETURN DIRECT COUPLED ACTUATORS a RETAINING RING HUB INSERTS DECLUTCH BUTTON ACTUATOR A INSTALL MOUNTING BRACKET SO THAT MOUNTING BRACKET TAB IS CENTERED IN ACTUATOR SLOT M11271A DECLUTCH M11272A BUTTON Fig 3 Installing mounting br2. 18 gauge cable Conduit Fittings Plastic housing has two tapped holes for 1 2 in 13 mm conduit fittings Controller Type Floating spat Torque Ratings at Rated Voltages Lift hold and breakaway ratings are temperature dependent from 250 Ib in to 350 Ib in 28 Nem to 40 Nem See Fig 1 Stall Maximum Temperature dependent 365 Ib in to 495 Ib in 41 Nem to 56 Nem See Fig 1 Torque Derating at 24 20 Vac See Fig 1 ORDERING INFORMATION 240 50 25 0 25 50 75 100 125 150 TEMPERATURE F M11266A Fig 1 Minimum and maximum torque versus temperature Voltage Requirements at Cold Temperatures At 40 F to 20 F 40 C to 29 C minimum voltage is 24 Vac 20 0 Actuator Stroke 95 nominal 3 mechanically limited Actuator Timing at 90 Stroke 165 3 seconds synchronous at 60 Hz from 4 F to 140 F 20 C to 60 C 200 3 seconds synchronous at 50 Hz from 4 F to 140 F 20 C to 60 C Non synchronous below 4 F 20 C Ambient Temperature Range 40 F to 140 F 40 C to 60 C Storage Temperature Range 30 F to 150 F 35 C to 65 C Humidity 5 to 95 percent relative humidity noncondensing Mounting Mounts directly on 1 2 in to 3 4 in 13 mm to 19 mm round or square and 1 in 26 mm round shaft using appropriate hub insert When purchasing replacement and modernization products from your TRADELINE wholesaler or distributor re
3. Ca OS Q OY TO JUNCTION Boxe M11273A Fig 5 ML6194 ML6294 Actuator standard mechanical connection WIRING A WARNING Electrical Shock Hazard Can cause severe injury death or property damage Disconnect power supply before installation Actuators with auxiliary switches can have more than one disconnect All wiring must comply with local electrical codes ordinances and regulations The ML6194 ML6294 are designed for use with a Class 2 power supply Voltage and frequency of 63 2511 1 6 transformer used must correspond with characteristics of motor and those of power supply See Fig 5 for standard mechanical connection See Fig 6 through 9 for typical wiring diagrams ML6194A C CONTROLLER L2 BLACK A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M11283A Fig 6 ML6194A C typical wiring diagram ML6194D F CONTROLLER A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED time out FUNCTION AVAILABLE WITH ML6194D F MODELS M11282A Fig 7 ML6194D F typical wiring diagram ML6294A C TAN GREEN CLOSED ORANGE OPEN A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A 500 OHM POTENTIOMETER mee Fig 8 ML6294A C typical wiring diagram ML6194 ML6294 NON SPRING RETURN DIRECT COUPLED ACTUATORS CONTROLLER ML6294 GREEN CLOSED ORANGE OPEN A POWER SUPPLY PROVIDE DISC
4. F models provide a time out feature that removes power from actuator submotor if the actuator receives the same signal or no call from controller for longer than a nominal five minutes This time out feature helps to extend actuator life CHECKOUT Use following procedure to check out ML6194 and ML6294 Non Spring Return DCA 1 Check that actuator position indicator and shaft position agree 2 If actuator has a time out feature apply 24 Vac to black T1 and red T2 leads see Fig 7 or 9 3 Apply 24 Vac control signal to blue B lead with respect to black T1 lead The actuator should drive shaft open clockwise 7N 4 Apply 24 Vac control signal to yellow W lead with respect to black T1 lead The actuator should drive shaft closed counterclockwise y 5 If 24 Vac control signal is removed actuator should stop TROUBLESHOOTING If actuator does not drive travel full stroke or operate properly during checkout perform following troubleshooting procedure before replacing actuator 1 Check actuator label to make sure proper power and control signal requirements are met 2 When actuator should be driving check for 24 Vac at actuator wires a Black T1 and yellow W or blue B b Black T1 and red T2 3 If voltage is not present or is low check power supply and controller 4 lf actuator does not drive in correct direction when a control signal is applied reverse yellow and blue wires 5
5. Remove power and fully depress and hold down disengage button while trying to turn shaft clockwise N and counterclockwise If shaft turns freely through 90 stroke and actuator is installed correctly replace actuator 6 If shaft does not turn freely for full 90 stroke check for any binding and verify that actuator is loose on its mounting bracket to prevent binding If necessary adjust mounting bracket to prevent binding 7 Ifno binding is present remove actuator and turn shaft clockwise and counterclockwise s N If shaft does not turn freely repair or replace damper 8 If shaft turns freely fully depress and hold down disengage button and turn actuator hub clockwise and counterclockwise y N If actuator hub does not turn replace actuator 9 If actuator and shaft turn freely remount actuator following instructions in Installation section Make sure actuator does not bind Also make sure that shaft and actuator are at the same clockwise 7 or counterclockwise y end stop when assembled Hook up wires and repeat checkout If necessary troubleshoot again Honeywell Automation and Control Solutions Honeywell International Inc Honeywell Limited Honeywell Limit e 1985 Douglas Drive North 35 Dynamic Drive Golden Valley MN 55422 Scarborough Ontario M1V 429 Printed in U S A on recycled 63 2511 1 GR Rev 06 04 amp Oe ee www honeywell com post consumer paper fibers
6. these instructions A WARNING Explosion or Fire Hazard Can cause severe injury death or property damage A spark from the actuator or attached accessories could ignite escaping gas or vapors Install actuator in areas free of escaping gas and other explosive vapors A WARNING Electrical Shock or Equipment Damage Hazard Can cause severe injury death or property damage Disconnect power supply before installation Actuators with auxiliary switches can have more than one disconnect 63 2511 1 4 CAUTION Equipment Damage Hazard Wrong location or improper operation will damage the actuator 1 Deteriorating vapors and acid fumes can damage actuator metal parts 2 Install actuator in areas free of acid fumes and other deteriorating vapors 3 Turning motor output hub by hand or wrench can damage internal gears 4 Ensure declutch button is depressed while manually turning hub Mounting The ML6194 ML6294 Non Spring Return DCA is designed with removable hub inserts to accommodate specific shaft sizes Proper insert selection is necessary to avoid excessive strain on output gear All ML6194 ML6294 Actuators are shipped with a one inch hub insert For field use two hub insert sizes are available see Accessories section A mounting bracket see Fig 2 and 3 is provided with all models to aid in installing actuator The bracket can be bent to any shape to allow the bracket tab to be centered in actuator slot
7. w 6 152 Fig 2 Approximate dimensions of ML6194 ML6294 Non Spring Return DCA and mounting bracket in in mm 3 63 2511 1 ML6194 ML6294 NON SPRING RETURN DIRECT COUPLED ACTUATORS Device Weight 3 0 Ib 1 36 kg Noise Rating 45 dBA maximum at 1 meter Position Indicator Mounted on actuator hub Actuator Design Life Full Stroke Cycles 50 000 Repositions 1 500 000 minimum Approvals Underwriter s Laboratories Inc Component Recognized UL873 File No E4436 Guide No XAPX CSA Listed File Number LR95329 17 Meets UL94 5V plenum requirements Environment Protection Rating IP54 standard with shaft in horizontal position Accessories 205843B Hub Insert 1 in round with retaining ring 205856B Hub Insert 3 4 in round or square with retaining ring 205849A Hub Insert 5 8 in round or square with set screws 205820A Three point Mounting Kit 205846 Crank Arm Accessory 205860 Remote Minimum Position Potentiometer 205860A Remote Minimum Position Potentiometer NEMA IV rated INSTALLATION When Installing this Product 1 Read instructions carefully Failure to follow them could damage the product or cause a hazardous condition 2 Check ratings and descriptions given in specifications to make sure 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
8. AD PROTECTION AS REQUIRED Mit2784 Fig 12 Common transformer with two controller outputs and two ML6194D F or ML6294D F Actuators OPERATION The ML6194 and ML6294 Non Spring Return DCA are designed to be used in ventilating and air conditioning installations to operate dampers ventilation flaps and louvers requiring up to 300 Ib in torque The ML6194 and ML6294 Non Spring Return DCA are operated by an spdt floating controller When using an spat floating controller actuator is driven toward fully open clockwise position when controller makes B contact and toward fully closed counterclockwise position when controller makes W contact It stops when neither contact is made 63 2511 1 ML6194 ML6294 NON SPRING RETURN DIRECT COUPLED ACTUATORS ML6194A C ML6294A C CONTROLLER ML6194A C ML6294A C A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M11279A Fig 13 Common transformer with one controller output and two ML6194A C or ML6294A C Actuators IMPORTANT ML6194 ML6294 Actuators can operate with a DDC Controller that emulates an spdt break before make switch Do not short cycle actuator Short cycling 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 shaft position The indicator can be rotated to show open or closed position ML6194D F and ML6294D
9. Honeywell ML6194 ML6294 Non Spring Return Direct Coupled Actuators ee LOS LUE m4 APPLICATION The ML6194 and ML6294 Non Spring Return Direct Coupled Actuators DCA provide floating single pole double throw spdt control of dampers or valves in heating ventilating and air conditioning HVAC applications The ML6294 has an internal electrically isolated feedback potentiometer that can be used to provide indication of motor output hub position or slave a Series 90 actuator U S Registered Trademark 2004 Honeywell International Inc All Rights Reserved PRODUCT DATA FEATURES e Mount directly on 1 2 in to 3 4 in 13 to 19 mm round or square shaft Mount on 1 in 26 mm round shafts with appropriate insert All models shipped with 1 in insert e 300 Ib in 34 Nem torque e Magnetic coupling eliminates need for mechanical stops or limit switch adjustments by limiting stall torque which is dependent on temperature Nominal stall torque at room temperature of 68 F 20 C is 410 Ib in e 95 stroke provides necessary compression of rubber neoprene gaskets commonly used on 90 low leakage dampers e Declutch feature allows manual adjustment e 165 second synchronous timing can eliminate need for feedback position indication in closed loop temperature control applications e Both single point and three point mounting compatibility to allow installation flexibility e Models available with o
10. ONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A time out FUNCTION AVAILABLE WITH ML6294D F MODELS M11280A A 500 OHM POTENTIOMETER Fig 9 ML6294D F typical wiring diagram The ML6194 ML6294 has a plastic housing with two tapped holes for 1 2 in 13 mm conduit fittings ML6194 and ML6294 Models with Factory mounted Auxiliary Switches see Fig 10 ML6194C F and ML6294C F models have two nonadjustable low voltage rated spdt auxiliary switches that are factory set to make common to normally open at 12 and 82 rotation from closed counterclockwise See Fig 10 COMMON 45 WHITE RED AUXILIARY _ WHITE YELLOW COMMON SWITCH BLACK RED 3A 24 VAC 82 BLACK BLUE BLACK YELLOW SWITCHES SHOWN AT ACTUATOR CCW M7877A CLOSED POSITION Fig 10 ML6194C F and ML6294 Actuator wiring for auxiliary switches ML6194 and ML6294 Wiring for Common Transformer Fig 11 through 13 show typical wiring for ML6194 and ML6294 Non Spring Return DCA using a common transformer ML6194A C ML6294A C CONTROLLER m m m y ML6194A C ML6294A C CONTROLLER a my YELLOW A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M11277A Fig 11 Common transformer with two controller outputs and two ML6194A C or ML6294A C Actuators ML6194D F ML6294D F CONTROLLER A O YELLOW ML6194D F ML6294D F YELLOW A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLO
11. acket on ML6194 ML6294 Non Spring Return DCA A typical actuator mechanical connection is shown in Fig 5 see Fig 6 through 13 for wiring diagrams Fig 4 Changing hub inserts A CAUTION Installation Actuator Damage Hazard Installing Actuator and Mounting Bracket Using actuator as shaft bearing can damage actuator iea H Mounting Use actuator only to supply rotational torque Avoid Place ML6194 ML6294 Non Spring Return DCA over any side loads to actuator output coupling bearings shaft 2 Position actuator for best access to actuator shaft locking screw Preparation 3 Install mounting bracket see Fig 2 and adjust it to Before installing actuator on shaft determine opening center mounting bracket tab in actuator slot Mark screw direction of shaft to correctly connect wiring holes for installing mounting bracket on housing 4 Remove mounting bracket and actuator 5 Drill mounting holes for screws screws not provided 6 Place actuator and mounting bracket back into position over shaft and install mounting bracket screws 7 Move shaft either fully clockwise 7N or fully counterclockwise 8 Fully depress and hold declutch button while moving actuator hub either fully clockwise Nor fully counterclockwise to match shaft Release declutch button 9 Tighten the two set screws firmly 80 to 100 Ib in against shaft 5 63 2511 1 ML6194 ML6294 NON SPRING RETURN DIRECT COUPLED ACTUATORS
12. fer 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 Limit e 35 Dynamic Drive Scarborough Ontario M1V 429 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 63 2511 1 2 ML6194 ML6294 NON SPRING RETURN DIRECT COUPLED ACTUATORS Minimum shaft length required is 2 5 in 64 mm Dimensions See Fig 2 Mounting bracket included with all models All actuators shipped with 1 in 26 mm hub insert See Accessories section for additional hub sizes 4 102 a 3 3 32 79 7 16 11 9 32 7 3 PLACES 8 7 16 215 T A1M6 196 36 914 gt 13 32 10 5 8 17 1 4 6 gt lt 1 8 3 F I 3 4 1 25 We fes 718 22 13 1 2 13 gt j lt 1 2 13 2 1 2 63 3 5 16 84 e 4 1 2 114 A REMOVABLE RETAINING RING FOR HUB SLEEVE REMOVAL a 5a M11270A
13. r without time out feature Contents Application eee ere 1 E E 1 SPSCIICALIONS asierto seirer aeai akera Caa atat 2 Ordering Information sririssis aiostet aas 2 INStAN ATION seccsece cosets ods deecaae ce soceesestensnguiesdepesabverbessnteeesoets 4 WIIG PEE E ET 6 OPS lation sssscscdsscbesdacevsscceeeversiesees Gen sneence cis vesceeeed teesedeeendets 7 Checkout oraaa ite Reale Aden eee 8 TOUDIESM OO G encreire aniani 8 63 2511 1 ML6194 ML6294 NON SPRING RETURN DIRECT COUPLED ACTUATORS SPECIFICATIONS Models ML6194 ML6294 Non Spring Return DCA ML6194A ML6294A High Torque 300 Ib in DCA without auxiliary switches or time out feature ML6194C ML6294C High Torque 300 Ib in DCA with two low voltage rated auxiliary switches and without time out feature ML6194D ML6294D High Torque 300 Ib in DCA without auxiliary switches and with time out feature ML6194F ML6294F High Torque 300 Ib in DCA with two low voltage rated auxiliary switches and with time out feature Electrical Ratings Power Input 24 Vac 20 50 or 60 Hz Power Consumption ML6194A C ML6294A C 5 VA at 24 Vac ML6194D F ML6294D F 6 VA at 24 Vac Auxiliary Switch Ratings 24 Vac 3 AFL 18 ALR 1A Pilot Duty Feedback Resistor ML6294 only 500 ohm linear potentiometer Cable Ratings Control Standard models include nonplenum UL CSA rated 30V 140jF 60j C 20 gauge cable Auxiliary Switch UL CSA rated 300V 194 F 90 C
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