Honeywell ML6420 Automobile Parts User Manual
Contents
1. pushbutton and LED which is factory set so that the actuator drives the valve stem down on increasing signal and draws the valve stem up on decreasing signal With the valve stem up the output signal from the feedback F function is either O or 2 Vdc The output of the signal does not change when W3 is used to reverse the actuator action See Fig 12 The actuator can be checked out either directly or by using a controller Direct Checkout 1 Mount the actuator for the required application see Installation section 2 Check the valve position and make sure that 24 Vac is correctly applied to the actuator 3 Apply the power to the appropriate leadwires to move the valve 4 Ifthe actuator does not move make sure the actuator is properly installed wired 5 If the actuator installation and wiring are both correct and the actuator does nat run replace the actuator Automation and Control Solutions Honeywell International Inc 1985 Douglas Drive North Golden Valley MN 55422 customer honeywell com Controller Checkout 1 Adjust the setpoint of the controller to call for opening the valve Observe the actuator 2 Ifthe valve is closed it should begin to open 3 Ifthe valve remains closed move the setpoint further toward the open setting 4 Ifthe valve does not move check for 24 Vac in the actuator power input 5 If 24 Vac is present and the actuator does not operate check the voltage across the controller leadwi2. 2 in 3 4 in tin 1 1 4in 1 1 2in 2 in 2 1 2in 3 in Flange V5011A 28 16 V3350 3351 3450 3451 21 14 V5013B C V3360 3361 3460 3461 218 142 NPT V5011F G 450 450 450 4345 77 49 28 16 V5011H J 150 150 150 145 V5011N1xxx V5011N3xxx V5013N 230 230 163 104 67 37 V5011N2xxx 100 100 100 100 V5013F 150 150 150 126 77 49 Represents maximum pressure difference between the outlet and either of the two inlets Do not exceed 100 psi with V5011G valves used in steam applications ALLLLLLLLLLLLL e 5 5 15 6 5 16 gt 4 135 161 12 11 16 322 MINIMUM 2 11 16 67 CLEARANCE YOKE DIAMETER M17419 Fig 1 Approximate dimensions of ML6420 ML7420 Electric Linear Valve Actuator in in mm 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 description given in the specifications 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 CAUTION Electrical Shock or Equipment Damage Hazard Can shock individuals or short equipment circuitry Disconnect power supply before installation Location In
3. 3 ML6420 ML7420 NON SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS SPECIFICATIONS Models Run Time in Stroke in Model sec at 60 Hz in mm ML6420A 130 or 602 3 4 20 ML7420A Description Electric Linear Valve Actuator 2 Dependant on actuator model Dimensions See Fig 1 Weight 2 9 Ib 1 3 kg Electrical Ratings Power Input 24 Vac 15 60 Hz Power Consumption ML6420 6 VA maximum at 24 Vac ML7420 7 VA maximum at 24 Vac Signal Source Output Resistance 1K ohm maximum Signal Load 1 mA maximum Ambient Ratings Temperature Ambient 14 F to 122 F 10 C to 50 C Storage 40 F to 158 F 40 C to 70 C Maximum Valve Medium 300 F 150 C Humidity 5 to 95 percent relative humidity noncondensing Stem Force 135 Ibf 600N Signal Inputs Supply Voltage Between Terminals ML6420 ORDERING INFORMATION B and 24 Vac Drives valve stem down W and 24 Vac Draws valve stem up ML7420 0 to 10 Vdc or 2 to 10 Vdc Actuator Material Cover ABS FR plastic Base PBTP FR plastic Yoke Diecast aluminum Actuator Stroke 3 4 in 20 mm Close off Pressure Ratings See Table 1 Protection Standard IP54 Approvals Canadian Standards Association Listed Underwriter s Laboratories Inc UL94 5V Flame Retardant Meets CE requirements Cable entry Conduit connector and one knockout on case Accessories 43196000 001 High Temperature Kit 1 2 to
4. 3 in valves Increases temperature range high end to 428 F 220 C For ML6420 ML6425 43191679 111 Single Auxiliary 10K ohm Potentiometer 43191679 112 Single Auxiliary 220 ohm Potentiometer 43191680 105 Dual Auxiliary Switch for 24 Vac use only For ML7420 ML7425 43191680 205 Dual Auxiliary Switch for 24 Vac use only 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 3 http customer honeywell com or http customer honeywell ca In Canada Honeywell Limited Honeywell Limit e 35 Dynamic Drive Toronto Ontario M1V 479 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 2533 03 ML6420 ML7420 NON SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS Table 1 Close off ratings for ML6420 ML7420 Electric Linear Valve Actuators and Honeywell Valves psi Type Valve 1
5. METER ACCESSORY KITS MOTOR OPEN SIGNAL DRAWS VALVE STEM UPWARDS MOTOR CLOSE SIGNAL DRIVES VALVE STEM DOWNWARDS M32766 Fig 6 ML6420 wiring ML6420 ML7420 NON SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS ML7420 INPUT FEEDBACK gt OUTPUT POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 2 10 Vdc FEEDBACK SIGNAL SEE OUTPUT SIGNAL FEEDBACK SECTION 0 10 Vdc OR 2 10 Vdc CONTROL SIGNAL SEE SIGNAL INPUT SECTION M17422 Fig 7 ML7420 wiring using feedback output from a controller with a common transformer ML7420 Nrowen SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED Fig 8 ML7420 wiring using a 2 to 10 Vdc control signal and separate transformers M17423 SINGLE TRANSFORMER 40 VA 24 VAC WITH 2 10 VDC OUTPUT A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M17424 Fig 9 ML7420 wiring using a 2 to 10 Vdc control signal and a common transformer ML7420 TRANSFORMERS 500 OHM RESISTOR T775 WITH 4 20 MA OUTPUT A power SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M17425 Fig 10 ML7420 wiring using a 4 to 20 mA control signal and separate transformers SENSOR SINGLE TRANSFORMER 40 VA 24 VAC 500 OHM RESISTOR T775 WITH 4 20 MA OUTPUT A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQ
6. ML6420 ML7420 Honeywell Non Spring Return Electric Linear Valve Actuators APPLICATION The ML6420 Non Spring Return Electric Linear Valve Actuators are floating control actuators used with controllers that provide a switched or floating single pole double throw spdt output These actuators operate standard Honeywell valves in heating ventilating and air conditioning HVAC applications The ML7420 Non Spring Return Electric Linear Valve Actuators are modulating control actuators used with controllers that provide an analog output of 0 to 10 Vdc or 2 to 10 Vdc These actuators operate standard Honeywell valves in HVAC applications An internal selector plug can be used to reverse the direction of action PRODUCT DATA FEATURES e Quick and easy installation No separate linkage required e Conduit connector is standard No adjustments required Low power consumption High close off ratings e Force limiting end switches Manual operator e Synchronous motor e Corrosion resistant design e Maintenance free e Direct reverse acting with ML7420 e Position feedback signal included with ML7420 e Selectable 0 to 10 Vdc or 2 to 10 Vdc signal input with ML7420 Contents Applicati0N ee 1 Installation isso si iaire rrei 3 Ordering Information onncccnnnnccnonocannnancnnnannnn nan cnnnn o nnnnns 2 Operation E a AE 7 Check t sisi cndss sotde cones noirin eeii eee riae a aaa 8 63 2533 0
7. The ML6420 and ML7420 are equipped with a manual operator knob see Fig 14 to open or close the valve in the event of power failure 1 Turn off or disconnect the power supply before manually operating the actuator 2 Push down on the manual operator knob and turn the knob a Counterclockwise to drive the stem downward b Clockwise to draw the stem upward IMPORTANT Manual operation allows very high closing force that can jam the actuator spindle exceed the force switch ratings and stop the motor After a manual valve close off operation release the spindle one turn by turning the manual operator knob This will ensure automatic disengagement of the manual operator upon power resumption NOTE Ifthe manual operator knob is not pushed in while turned it will rotate only a short distance before disengaging without power resumption Fig 14 Manual operator knob ML7420 Signal Input The analog input signal range is set at the factory to 0 to 10 Vdc Changing the position of the W2 selector plug sets the range to 2 through 10 Vdc Selector plugs W1 W2 and W3 are positioned on the back side of the printed circuit board See Fig 12 for location of the selector plugs Signal Input Failure Using the potentiometer the actuator can be set to run to any position in event of a signal failure ML7420 25 only ML6420 does not have any input signal failure jumpers or potentiometers Output Signal Feedback F An a
8. UIRED Fig 11 ML7420 wiring using a 4 to 20 mA control signal and a common transformer M17426 EA 0 50 100 O CPOPO OPO M32767 Fig 12 Location of W1 W2 and W3 selector plugs 63 2533 03 ML6420 ML7420 NON SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS M17428 Fig 13 Replacing actuator cover 63 2533 03 6 ML6420 ML7420 NON SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS Auxiliary Potentiometers The 43191679 Auxiliary Potentiometers can be used as feedback potentiometers and to provide remote indication of valve position See the Installation Instructions packed with the potentiometers Auxiliary Switches The 43191680 Dual Auxiliary Switch can be used on both the ML6420 and ML7420 Electric Linear Valve Actuators Switching points are adjustable over the full length of the actuator stroke for example the switch can be used to switch pumps or to provide remote indication of any stroke position See the Installation Instructions packed with the auxiliary switch AN CAUTION Equipment Damage Hazard Improper voltage damages the auxiliary switch beyond repair Use the 43191680 Dual Auxiliary Switch only with 24 Vac applications OPERATION General In the actuator the drive of a synchronous motor is converted into the linear motion of the actuator stem by using a spur gear transmission A button retainer clip connects the actuator stem to the valve stem Manual Operation
9. nalog output signal 2 to 10 Vdc that represents the actual actuator stem position is available at terminal F It can be used for remote indication of the stem position When the actuator stem is fully downward the output signal is 10 Vdc When the valve stem is up the output signal is O or 2 Vdc The output of the signal does not change when the action of the actuator is reversed using W3 See Direction of Action Actuator Override To override the control signal for freeze protection or similar applications connect the 24 Vac common T2 to either terminal O1 or 02 Connecting to terminal O1 fully extends the actuator stem Connecting to O2 fully retracts the actuator stem The control signal is ignored when the override signal is applied to terminal O1 or O2 This override can be achieved with a switch or a relay See Fig 15 63 2533 03 ML6420 ML7420 NON SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS ML7420 INPUT FEEDBACK gt OUTPUT POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 2 10 Vdc FEEDBACK SIGNAL SEE OUTPUT SIGNAL FEEDBACK SECTION 0 10Vdc OR 2 10 Vdc CONTROL SIGNAL SEE SIGNAL INPUT SECTION SEE OVERRIDE SECTION FOR DETAILS ON OVERRIDE OPERATION M17429 Fig 15 Connections for overriding control signal to drive ML7420 to a specific position CHECKOUT Direction of Action ML7420 25 only The direction of the actuator action can be changed using the
10. res to determine if the device is miswired 6 Ifthe wiring is correct 24 Vac is present on the power input terminals and the actuator does not run replace the actuator Honeywell U S Registered Trademark 2011 Honeywell International Inc 63 2533 03 M S Rev 07 11 Printed in U S A
11. stall the actuator in a location that allows enough clearance for mounting accessories and for servicing AN CAUTION Equipment Damage Hazard Can damage actuator due to condensation or a valve gland leak Install the actuator in a position above horizontal Mounting 1 Place the actuator on the valve with the U bolt around the valve collar See Fig 2 2 Place the U bolt against the valve collar and secure the actuator to the valve by turning each U bolt nut clock wise NOTE To assure even pressure on the collar first tighten the nuts finger tight and then alternate turning each U bolt nut until both are snug 3 Push aside the stem button retaining clip and hold See Fig 3 4 Lift valve stem until the head of the valve stem button is inside the large slot of the stem button retaining clip on the actuator 5 Release the stem button retaining clip to secure the stem button Check to make certain the stem button is secured by the retaining clip 6 Remove the cover from the actuator using a Phillips or crosspoint screwdriver See Fig 4 63 2533 03 ML6420 ML7420 NON SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS O E Fig 2 Attaching actuator to valve collar M17420 Fig 4 Removing actuator cover Wiring AN CAUTION Electrical Shock or Equipment Damage Hazard Can shock individuals or short equipment circuitry Disconnect power supply before installation 63 2533 03 All wiring mus
12. t comply with local electrical codes ordinances and regulations Voltage and frequency of the transformer used with the actuator must correspond with the power supply and actuator characteristics See Fig 6 through 11 for typical wiring hookups 1 Feed power and control wires through the conduit connector located on the bottom of the actuator case See Fig 5 AN CAUTION Equipment Damage Hazard Conduit connection or removal can break an unsupported connector When removing or attaching conduit use a wrench to support the motor connector 2 Using the wiring diagram in Fig 6 connect power and control wires Make sure that all wiring is correct 3 For ML7420 only Check the selector plugs for proper settings See Signal Input Failure section for details 4 Whenwiring is complete replace the actuator cover See Fig 7 5 Apply power and control signals to the actuator Fig 5 Connecting power and control wiring ML6420A B T6984 FLOATING CONTROLLER POWER SUPPLY PROVIDE DISCONNET MEANS AND OVERLOAD PROTECTION AS REQUIRED A ALL WIRING BLOCKS HAVE THE SAME NUMBER OF TERMINALS 8 BUT THE ONLY TERMINALS THAT ARE ACTIVE ON THIS BLOCK ARE T1 T2 W AND B A THE T Y G TERMINALS ARE A THREE TERMINAL WIRING BLOCK SEPARATE FROM THE MAIN BLOCK THEY DO NOT APPEAR ON ALL MODELS BECAUSE THEY ARE FOR A SINGLE FEEDBACK POTENTIOMETER 10K OR 220 OHMS THE 1 REQUIRED WIRING BLOCKS ARE PART OF HOT THE POTENTIO
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