Chamberlain HD420EV User Manual

The Chamberlain Group, Inc.845 Larch AvenueElmhurst, Illinois 60126-1196www.chamberlain.comCONTENTSPreparation ... 1-4Assem

9AssemblySTEP 5 Tighten the chain1. Spin the inner nut and lock washer down the trolley threaded shaft,awayfrom the trolley.2. To tighten the chain, t

10InstallationIMPORTANT INSTALLATION INSTRUCTIONSTo reduce the risk of SEVERE INJURY or DEATH:1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUC

11InstallationSTEP 1 Determine the header bracket locationTo preventpossible SERIOUS INJURY or DEATH:• Header bracketMUSTbe RIGIDLY fastened to struct

12InstallationSTEP 2 Install the header bracketYou can attach the header bracket either to the wall above the garage door, or to the ceiling. Follow t

13InstallationSTEP3 Attach the rail to the header bracket1. Align the rail with the header bracket. Insertthe clevispin through the holes in the head

14InstallationSTEP 5 Hang the garage door openerTo avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY tostructural su

15InstallationSTEP 6 Install the light bulbsTo preventpossible OVERHEATING of the end panel or light socket:• Use ONLY A19 incandescent (100W maximum)

16InstallationSTEP 8 Install the door bracketFiberglass, aluminum or lightweightsteel garage doors WILLREQUIRE reinforcement BEFOREinstallation of do

17InstallationSTEP 8 Install the door bracket (continued)OPTION B ONE-PIECEDOORS1. Center the door bracket on the top of the door, in line with the h

18InstallationSTEP 9 Connect the door arm to the trolleyInstallation will vary according to the garage door type. Followthe instructions which apply t

1Safety Symbol and Signal Word ReviewThis garage door opener has been designed and tested to offer safe service provided it is installed,operated, mai

19InstallationSTEP 9 Connect the door arm to the trolley (continued)OPTION B ONE-PIECE DOORSIMPORTANT: The groove on the straight door arm MUSTface aw

20InstallationSTEP10 Install the door controlTo preventpossible SERIOUS INJURY or DEATHfrom electrocution:• Be sure power isNOT connected BEFORE inst

21InstallationSTEP 11 Wire the door control to the garage door openerHARDWAREInsulated Staple(Not Shown)1. Run the white and red/white wire from the d

22InstallationSTEP 13 Install the Protector System®Be sure power isNOT connected to the garage door opener BEFORE installing the safetyreversingsensor

23InstallationSTEP 13 Install the Protector System®(continued)OPTION B WALLINSTALLATIONIf additional clearance is needed an extension bracket (notpro

24InstallationSTEP 14 Wire the Safety Reversing SensorsIf your garage already has wires installed for the safetyreversing sensors,proceed to page 25.H

25InstallationSTEP 14 Wire the Safety Reversing Sensors (continued)OPTION B PRE-WIREDINSTALLATION1. Cutthe end of the safetyreversing sensor wire, ma

26InstallationSTEP 15 Connect powerTo preventpossible SERIOUS INJURY or DEATHfrom electrocution or fire:• Be sure power isNOT connected to the opener,

27InstallationSTEP 16 Ensure the safety reversing sensors are alignedThe door will not close if the sensors have not been installed and aligned correc

28AdjustmentsIntroductionWithout a properly installed safetyreversal system, persons (particularlysmall children) could beSERIOUSLY INJURED or KILLED

2Additional Items You May Need:Surveyyour garage area to see if you will need any of the following items:n(2) 2X4 PIECES OF WOODMaybe used to fasten t

29AdjustmentsSTEP1 Program the TravelWithout a properly installed safetyreversal system, persons (particularlysmall children) could beSERIOUSLY INJUR

30AdjustmentsSTEP 2 Test the Safety Reversal SystemWithout a properly installed safetyreversal system, persons (particularlysmall children) could beSE

31IMPORTANT SAFETYINSTRUCTIONSTo reduce the risk of SEVERE INJURY or DEATH:1. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS.2. ALWAYS keep remote con

32OperationFeaturesYour garage door opener is equipped with features to provide you with greater control over your garagedoor operation.TIMER-TO-CLOSE

33OperationUsing your Garage Door OpenerThe garage door opener can be activated through a wall-mounted door control, remote control, wirelesskeyless e

34OperationMotion Detecting Control Panel (continued)LOCKThe LOCK feature is designed to prevent activation ofthe garage door opener from remote contr

35OperationRemote Control (continued)PROGRAM A REMOTE CONTROL USING THE LEARN BUTTON1. Locate the Learn Button.2. Press and immediately release the Le

36OperationTo Open the Door ManuallyTo preventpossible SERIOUS INJURY or DEATHfrom a falling garage door:• If possible, use emergencyrelease handle to

37MaintenanceMaintenance ScheduleEVERY MONTH• Manuallyoperate door. If it is unbalanced or binding,call a trained door systemstechnician.• Check to be

38Diagnostic ChartYour garage door opener is programmed with self-diagnostic capabilities. The UP and DOWN arrowson the garage door opener flash the d

3Carton InventoryYour garage door opener is packaged in one carton which contains the motor unit and all partsillustrated below.Accessories vary depen

39DIAGNOSTIC CODESYMPTOM SOLUTIONUp ArrowFlash(es)Down ArrowFlash(es)4 1-4 Door is moving stops or reverses. Manuallyopen and close the door. Checkfor

40AccessoriesAGDMEVBIK01CLLP1953EVCLSS1940EV956EVGarage Door and Gate Monitor:Monitor open/closed status for up to 4 MyQ® compatible garage door opene

41CHAMBERLAIN® TWO YEAR LIMITED WARRANTY10 YEAR MOTOR LIMITED WARRANTY MODEL HD420EVThe Chamberlain Group, Inc.® (“Seller”) warrants to the fi rst reta

42NOTICE1342567891011Repair PartsRail Assembly PartsAccessoriesInstallation Parts13524612Description Part Number1Chain and Cable 41A58072Pulley 144C56

43141110137692128443551Repair PartsGarage Door Opener PartsDescription Part Number1 Chain Spreader 41A56152 Gear and Sprocket 41C4220A3 End Panel wit

4Hardware InventoryBolt 1/4"-20x1-3/4" Lock Nut 1/4"-20BoltNut 3/8" Lock Washer 3/8"Master Link Clevis Pin 5/16"x1-1/2&q

5AssemblySTEP 1 Assemble the rail and trolleyTo preventINJURY from pinching, keep hands and fingersawayfrom the joints while assembling therail.To avo

6AssemblySTEP 2 Fasten the rail to the motor unitTo avoid SERIOUS damage to garage door opener,use ONLY those bolts/fasteners mounted in thetop of the

7AssemblySTEP 3 Install the idler pulley1. Lay the chain/cable beside the rail,as shown.Grasp the end with the cable loop and passapproximately 12&quo

8AssemblySTEP 4 Install the chainTo avoid possible SERIOUS INJURY to fingersfrom moving garage door opener:• ALWAYS keep hand clear of sprocket while