Page 1
MT50EVO Sectional Garage Door Opener Installation and Operating Instructions Owners Copy: SAVE THESE INSTRUCTIONS for future reference This manual contains IMPORTANT SAFETY information DO NOT PROCEED WITH THE INSTALLATION BEFORE READING THOROUGHLY...
400 N (40 kgf). Excessive force will interfere with before installing this opener. the proper operation of the Safety Reverse System or damage SPECIAL NOTE: Merlin strongly recommends that The the garage door. Do not wear rings, watches or loose clothing while Protector System be installed on all garage door openers.
BEFORE YOU BEGIN: 1. Look at the wall and ceiling above the garage door. (The opener and header bracket must be securely fastened to structural supports.) 2. Do you have a finished ceiling in your garage? If so, a support bracket and additional fastening hardware (not supplied) may be required.
(6) Header bracket (12) Rail centre bracket gomerlin.com.au gomerlin.co.nz MT50EVO Sectional Garage Door Opener Installation and Operating Instructions 132A2890 O w n e rsC o p y :S A V ET H E S EIN S T R U C T IO N Sfo rfu tu rere fe re n c e...
Common Common terminal for push button and IR Beams: IR Sensor Merlin IR Beam Input: (pulsing type only) 2. S Button: used to “SAVE” the REMOTE CONTROLS. 3. P Button: used to “PROGRAM” the DOOR LIMITS. 4. - Button: used to drive door DOWN.
ASSEMBLY SECTION ASSEMBLING THE 3 PIECE SEGMENTED RAIL The segmented rail is largely preassembled and consists of 3 parts. The carriage, push rod, release handle, the guide pulley and the lintel bracket with chain tensioner are in the front part (A). The seating for the drive shaft and the sprocket are in the rear part (B).
INSTALLATION SECTION Wear protective goggles when working overhead to protect your eyes from injury. Disengage all existing garage door locks to avoid damage to the garage door. To avoid serious personal injury from entanglement, remove all ropes connected to the garage door before installing the opener.
POSITION THE OPENER Disengage the trolley mechanism (see section “Operating the manual release”) and slide it back towards the powerhead. Secure the hanging push arm up into the rail assembly temporarily using tape or rope, to avoid a hazard. SECTIONAL DOOR You will need a 50 mm piece of timber or similar spacer to gauge the distance between door and rail.
Page 11
HANG THE OPENER The opener must be securely fastened to a sound structural support above the opener. 1.Postion the opener as in the previous step. Check the rail is centred over the door (fig. A). 2.The mounting bracket must be mounted so far back that the carriage is not obstructed.
Make sure the garage door is fully closed. Pull the manual release cord ATTACH DOOR ARM TO TROLLEY to disengage the trolley. Slide the trolley to around 300 mm from the Fig. 1 header bracket. 1.The straight door arm is already preassembled to the trolley. 2.Install the curved arm onto the door bracket using the Clevis pin (2) and R-Clip (3) supplied.
Connect Electric Power TO AVOID INSTALLATION DIFFICULTIES, DO NOT RUN THE GARAGE DOOR OPENER UNTIL INSTRUCTED TO DO SO. Connect to properly fused and earthed power outlet. - Ensure all ropes and installation tools have been removed from the door. - When the opener is switched ON, the operator light flashes a number of times and then remains ON.
Page 14
TEST THE SAFETY REVERSE SYSTEM The safety reverse system test is important. Garage door must reverse on contact with a 40 mm obstacle laid flat on the floor. Failure to properly adjust opener may result in serious personal injury from a closing garage door.
400 N (40 kgf). To prevent entrapment, install The Protector System™ no higher than 100 mm above the floor. SPECIAL NOTE: Merlin strongly recommends that The Protector System be installed on all garage door Disconnect power to the garage door opener openers.
INSTALLING YOUR E138M WIRELESS WALL BUTTON (OPTIONAL) NOTE: If adding a wireless wall control, program into the opener before mounting the unit as detailed in Wireless Programming. Disconnect power to the opener before installing this accessory to prevent accidental activation. Locate minimum 1.5 m above the floor.
WIRELESS PROGRAMMING (OPTIONAL ACCESSORIES) Activate the opener only when door is in full view, free of obstruction and properly adjusted. No one should enter or leave garage while door is in motion. Do not allow children to operate push button(s) or remote(s). Do not allow children to play near the door.
MAINTENANCE AND CARE OF YOUR OPENER Battery of the remote control: USING YOUR OPENER REPLACE BATTERIES IN REMOTES 1. Your opener can be activated by any of the following devices: • Opener control panel: UP and DOWN Buttons and Green O.S.C. The batteries in the remote have an extremely long life.
(10) Model E1702M Quick release lock E138M E952M E950M E940M E128M E1702M E943M E945M E840M NOTE: Only genuine Merlin accessories are approved for use with this opener. Generic compatible accessories are NOT approved for use with this opener. ACCESSORY WIRING DIAGRAM...
REPLACEMENT PARTS If the supply cord is damaged, it must be 026B0182 replaced by the manufacturer, its service Power Cord agent or similarly qualified persons in order to avoid hazard. 041A4004 Passpoint Assembly 041A4033 Motor Assembly 041A4001EV 041A4024 Logic Board Transformer 041A4023 Power...
TROUBLE SHOOTING 1. Opener doesn't operate from either door control or 7. Door opens but won't close: remote: • Check The Protector System™ (if you have installed • Does the opener have electric power? Plug lamp into this accessory). If the light on the Beams are flashing, outlet.
SPECIFICATIONS - EntryLift - MT50EVO Input Voltage...230-240 Vac, 50 Hz Max. Pull Force ..500 N Power .....80 Watt Standby Power ..0.8 Watt (door fully closed) Normal Torque ..4 Nm Max door weight..60 kgs Spring balanced Max door area..Sectional door 13.0 m Motor Type......DC gearmotor permanent lubrication...
Chamberlain warrants to the original purchaser of the Merlin EntryLift 6 water or moisture ingress that causes corrosion or electrical malfunction; MT50EVO Sectional Door Opener (Unit) that all parts of the Unit, other than 7 corrosion caused by sea air if located near a waterway, beach etc;...
Need help?
Do you have a question about the MT50EVO and is the answer not in the manual?
Questions and answers