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Commercial Door Operators

MT

Medium Duty Trolley Operator for Standard Lift Sectional Doors

Model MT is a Medium-Duty Logic trolley operator for standard lift sectional doors. It features a high-starting torque motor, a compact design, quick-gliding rail spacers and a quick-mount swivel header bracket.

MEDIUM-DUTY LOGIC TECHNOLOGY

Added Value
  • UL325-2010 compliant Medium-Duty Logic programmable integrated circuit board
  • Built-in 3-channel, 315MHz radio receiver accepts up to 20 Chamberlain® Security+® or unlimited DIP switch remotes. 3-button remotes can be programmed for OPEN/CLOSE/STOP operation
  • Programmable C2 or B2 wiring options (B2 requires CPS-U, CPS-UN4, or CPS-EI)
  • Integrated Timer-to-Close (TTC) allows programming from 5 to 60 seconds in 5-second increments. Allows for timed automatic door closure after the door reaches the full open position (Requires monitored safety devices, with CPS-U, CPS-UN4, or CPS-EI)
  • Integrated 90-second maximum run timer
  • UL325-2010 Monitored Entrapment Capability
  • Monitored protection against transient overvoltage conditions
  • 3-button control station included

CONTROL ACCESSORIES AND OPTIONS

Primary Monitored Entrapment Protection: The presence of primary entrapment protection is required for all modes and features beyond basic constant-pressure-to-close performance. Primary entrapment protection devices are monitored continuously to insure safe operation of the door and limit door operator functionality should an obstruction be detected or in the event of device failure. LiftMaster Monitored Entrapment Protection devices, CPS-U, CPS-UN4 and CPS-EI, are designed to work in conjunction with LiftMaster commercial door operators to provide enhanced door safety and a broad range of modes and features to end users. Either monitored photo-sensor or monitored 4-wire sensing edge (in conjunction with the CPS-EI Edge Interface) protection may be selected, but one must be detected by the LiftMaster Logic 4.0 or Medium-Duty Logic circuit board in order to unlock full functionality.

Ancillary Entrapment Protection: (optional) LiftMaster Retro-Reflective Commercial Protector System® photo sensors, 2-wire non-monitored sensing edges and pneumatic sensing edges are considered secondary entrapment protection and may be used to supplement primary entrapment protction or basic constant-pressure-to-close.

Solenoid Brake: Solenoid actuated brake prevents coasting. Order operator BMT. Standard on 3/4 HP and higher.

Radio Control: Universal transmitters and receivers are available to signal the operator to open and/or close.

Key Switch: Designed to restrict operation of door to authorized personnel only. Various types available.

STANDARD FEATURES

Motor: Powerful 1/2 HP, single-phase motor with instant reverse and internal automatic reset thermal overload. Removable without affecting limit switch settings.

Auxiliary Reversal System: Designed to protect the door and door operator from damage; if a closing door strikes an obstruction, the Auxiliary Reversal System will detect the slip of the clutch and reverse the door to the full open position. This system is not a substitute for a safety sensing device such as a photocell or a reversing edge.

Wiring Type: All operators are factory preset to C2 wiring providing momentary contact to open and stop, with constant contact to close. Momentary contact to close (B2 wiring) can be easily set but requires the presence of either CPS-U, CPS-UN4, or CPS-EI safety devices. The operator is pre-wired to accept a sensing device, photoelectric control, radio controls, and most types of access control equipment.

Rail Assembly: High strength dual L-rail track with exclusive nylon quiet gliding chain guides on rail spacers for quiet, smooth operation. Includes quick-mount header bracket which provides fast, swing-up installation.

Operator/Motor Control: Solid-state Medium-Duty circuit board.

Control Circuit: 24V NEC Class 2.

Drive Reduction: First-stage heavy-duty 4L V-belt; second and third stages #48 chain; output on trolley #48 chain.

Emergency Disconnect: Spring-loaded disconnect for emergency manual operation.

Push Button Station: 3-button station for OPEN/CLOSE/STOP functions is standard for all operators. Controls with 1, 2, and 3 buttons are available.

Construction: NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with baked-on powder coat finish, all reduction sprockets drilled and pinned to shafts.

Bearings: Heavy-duty, oil-filled bearings.

Radio Receiver: 315MHz radio receiver is integral to the Medium-Duty logic board. Accepts up to 20 Security+® remote controls and unlimited DIP switch remote controls.

Friction Clutch: Adjustable friction clutch helps protect against damage to the door and the operator should the door meet an obstruction. Works in conjunction with the Auxiliary Reversal System.

Warranty: 2-year warranty.

T

Industrial-Duty Trolley Operator for Standard Lift Sectional Doors

  • Dual Voltage Connections increase flexibility by enabling the installer to select the required voltage within phase, to meet job-site requirements.
  • Single-Phase: 115V and 230V, 3-Phase: 208V, 230V and 460V, 575V is a discrete model without field-selectable voltage.
  • Control Function Selector Dial enables easy selection and programming of (7) wiring types, from constant pressure to close, to specialized Timer-to-Close functionality to meet end-user needs.
  • Continuous-Duty High-Starting Torque Motor performs in demanding industrial overhead door applications.
  • Motor Removable without Affecting Limit Switch Settings saves time and money for maintenance.
  • Adjustable Friction Clutch helps to protect door and operator from damage should the door meet an obstruction.
  • Mid-Stop enables partial opening of door to a preprogrammed position for energy savings, time savings and convenience.
  • Maximum Run Timer reverses or stops door if closing time exceeds expected time-frame to limit damage to door and operator.
  • Delay-On-Reverse Circuit prevents abrupt reversal of door, reducing wear on the door and operator system.
  • 3-Button Control Station with Maintenance Alert System (MAS) provides open/close/stop functions and notification when routine maintenance is required.
  • Continuous-duty high-starting torque motor with instant reverse and overload protection. Available in 1/3, 1/2, 3/4 and 1 HP; single- or three-phase. Capacitor start on single-phase. Removable without affecting limit switch settings.
  • Operators are factory preset to C2 wiring, providing momentary contact to open and stop, with constant contact to close.
  • 5V DC NEC Class 2.
  • First-stage heavy-duty 5L V-belt; second #41 chain; #48 (for 1/3 and 1/2HP) and #41 (for 3/4 and 1HP) output chain on trolley.
  • Industrial ball bearings on output shaft, heavy-duty oil-filled bushings on reduction shafts.
  • Brake Standard on 3/4 and 1 HP operators, (optional on 1/2 HP, not available on 1/3 HP).
  • NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powder coat finish, all reduction sprockets drilled and pinned to shafts.
  • #48 on 1/3 and 1/2 HP. #41 on 3/4 and 1HP.
  • Two-year warranty.
    • UL 325 requires all commercial door operators to be either constant pressure to close or be equipped with a primary external monitored entrapment protection device.
    • Security+ 2.0™ safeguards your facility – with every click, a new code is sent to the commercial door operator so the door opens only for you.
    • Timer-To-Close conveniently and confidently closes the commercial door automatically after a predetermined amount of time has elapsed for added security and peace of mind.
    • Emergency Disconnect disconnects the operator from the door for manual lifting in an emergency.

MJ

Medium-Duty Jackshaft Operator

Model MJ is a Medium Duty Logic jackshaft operator. It features a compact design, an adjustable friction clutch, a standard solenoid brake and a high-starting torque motor.

MEDIUM-DUTY LOGIC TECHNOLOGY

Added Value
  • UL325-2010 compliant Medium-Duty Logic programmable integrated circuit board
  • Built-in 3-channel, 315MHz radio receiver accepts up to 20 Chamberlain® Security+® or unlimited DIP switch remotes. 3-button remotes can be programmed for OPEN/CLOSE/STOP operation
  • Model MJ is a Medium Duty Logic jackshaft operator. It features a compact design, an adjustable friction clutch, a standard solenoid brake and a high-starting torque motor.
  • Integrated 90-second maximum run timer
  • UL325-2010 Monitored Entrapment Capability
  • Monitored protection against transient overvoltage conditions
  • 3-button control station included

CONTROL ACCESSORIES AND OPTIONS

Primary Monitored Entrapment Protection: The presence of primary entrapment protection is required for all modes and features beyond basic constant-pressure-to-close performance. Primary entrapment protection devices are monitored continuously to insure safe operation of the door and limit door operator functionality should an obstruction be detected or in the event of device failure. LiftMaster Monitored Entrapment Protection devices, CPS-U, CPS-UN4 and CPS-EI, are designed to work in conjunction with LiftMaster commercial door operators to provide enhanced door safety and a broad range of modes and features to end users. Either monitored photo-sensor or monitored 4-wire sensing edge (in conjunction with the CPS-EI Edge Interface) protection may be selected, but one must be detected by the LiftMaster Logic 4.0 or Medium-Duty Logic circuit board in order to unlock full functionality.

Ancillary Entrapment Protection: (optional) LiftMaster Retro-Reflective Commercial Protector System® photo sensors, 2-wire non-monitored sensing edges and pneumatic sensing edges are considered secondary entrapment protection and may be used to supplement primary entrapment protction or basic constant-pressure-to-close.

Radio Control: Universal transmitters and receivers are available to signal the operator to open and/or close.

STANDARD FEATURES

Motor: Powerful 1/2 HP, 115V single phase motor with instant reverse and internal automatic reset thermal overload. Removable without affecting limit switch settings.

Operator/Motor Control: Solid-state Medium-Duty circuit board.

Control Circuit: 24V NEC Class 2.

Floor Level Disconnect: Floor level disconnect provides emergency manual operation.

Brake: Heavy-duty solenoid actuated brake standard.

Wiring Type: All operators are factory preset to C2 wiring providing momentary contact to open and stop with constant contact to close. Momentary contact to close (B2 wiring) can be easily set, but requires the presence of either CPS-U, CPS-UN4, or CPS-EI safety devices. The operator is pre-wired to accept a sensing device, photoelectric control, radio controls and most types of access control equipment.

Drive Reduction: First stage heavy-duty 4L V-belt; second stage and third stages #48 chain.

Push Button Station: 3-button station for OPEN/CLOSE/STOP functions is standard for all operators. Controls with 1, 2 and 3 buttons are available.

Construction: NEMA 1 Type electrical box, heavy-duty 11-gauge steel frame with durable baked-on powder coat finish, all reduction sprockets drilled and pinned to shafts.

Friction Clutch: Adjustable friction clutch helps protect against major damage to door and operator should the door meet an obstruction.

Radio Receiver: 315MHz radio receiver is integral to the Medium-Duty logic board. Accepts up to 20 Security+® remote controls and unlimited DIP switch remote controls.

Warranty: 2-year warranty.

J

Industrial Duty Jackshaft Operator

  • Dual Voltage Connections increase flexibility by enabling the installer to select the required voltage within phase, to meet job-site requirements.
  • Single-Phase: 115V and 230V, 3-Phase: 208V, 230V and 460V, 575V is a discrete model without field-selectable voltage.
  • Control Function Selector Dial enables easy selection and programming of (7) wiring types, from constant pressure to close, to specialized Timer-to-Close functionality to meet end-user needs.
  • Continuous-Duty High-Starting Torque Motor performs in demanding industrial overhead door applications.
  • Motor Removable without Affecting Limit Switch Settings saves time and money for maintenance.
  • Adjustable Friction Clutch helps to protect door and operator from damage should the door meet an obstruction.
  • Mid-Stop enables partial opening of door to a preprogrammed position for energy savings, time savings and convenience.
  • Maximum Run Timer reverses or stops door if closing time exceeds expected time-frame to limit damage to door and operator.
  • Delay-On-Reverse Circuit prevents abrupt reversal of door, reducing wear on the door and operator system.
  • 3-Button Control Station with Maintenance Alert System (MAS) provides open/close/stop functions and notification when routine maintenance is required.
  • Continuous-duty high-starting torque motor with instant reverse and overload protection. Available in 1/3, 1/2, 3/4 and 1 HP; single- or three-phase. Capacitor start on single-phase. Removable without affecting limit switch settings.
  • Operators are factory preset to C2 wiring, providing momentary contact to open and stop, with constant contact to close.
  • 5V DC NEC Class 2.
  • First-stage heavy-duty 5L V-belt; second #41 chain; #48 (for 1/3 and 1/2HP) and #41 (for 3/4 and 1HP) output chain on trolley.
  • Industrial ball bearings on output shaft, heavy-duty oil-filled bushings on reduction shafts.
  • Brake Standard on 3/4 and 1 HP operators, (optional on 1/2 HP, not available on 1/3 HP).
  • NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powder coat finish, all reduction sprockets drilled and pinned to shafts.
  • #48 on 1/3 and 1/2 HP. #41 on 3/4 and 1HP.
  • Two-year warranty.
    • UL 325 requires all commercial door operators to be either constant pressure to close or be equipped with a primary external monitored entrapment protection device.
    • Security+ 2.0™ safeguards your facility – with every click, a new code is sent to the commercial door operator so the door opens only for you.
    • Timer-To-Close conveniently and confidently closes the commercial door automatically after a predetermined amount of time has elapsed for added security and peace of mind.
    • Emergency Disconnect disconnects the operator from the door for manual lifting in an emergency.

J

Industrial Duty Jackshaft Opener w/Chainhoist

  • Dual Voltage Connections increase flexibility by enabling the installer to select the required voltage within phase, to meet job-site requirements.
  • Single-Phase: 115V and 230V, 3-Phase: 208V, 230V and 460V, 575V is a discrete model without field-selectable voltage.
  • Control Function Selector Dial enables easy selection and programming of (7) wiring types, from constant pressure to close, to specialized Timer-to-Close functionality to meet end-user needs.
  • Continuous-Duty High-Starting Torque Motor performs in demanding industrial overhead door applications.
  • Motor Removable without Affecting Limit Switch Settings saves time and money for maintenance.
  • Adjustable Friction Clutch helps to protect door and operator from damage should the door meet an obstruction.
  • Mid-Stop enables partial opening of door to a preprogrammed position for energy savings, time savings and convenience.
  • Maximum Run Timer reverses or stops door if closing time exceeds expected time-frame to limit damage to door and operator.
  • Delay-On-Reverse Circuit prevents abrupt reversal of door, reducing wear on the door and operator system.
  • 3-Button Control Station with Maintenance Alert System (MAS) provides open/close/stop functions and notification when routine maintenance is required.
  • Continuous-duty high-starting torque motor with instant reverse and overload protection. Available in 1/3, 1/2, 3/4 and 1 HP; single- or three-phase. Capacitor start on single-phase. Removable without affecting limit switch settings.
  • Operators are factory preset to C2 wiring, providing momentary contact to open and stop, with constant contact to close.
  • 5V DC NEC Class 2.
  • First-stage heavy-duty 5L V-belt; second #41 chain; #48 (for 1/3 and 1/2HP) and #41 (for 3/4 and 1HP) output chain on trolley.
  • Industrial ball bearings on output shaft, heavy-duty oil-filled bushings on reduction shafts.
  • Brake Standard on 3/4 and 1 HP operators, (optional on 1/2 HP, not available on 1/3 HP).
  • NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powder coat finish, all reduction sprockets drilled and pinned to shafts.
  • #48 on 1/3 and 1/2 HP. #41 on 3/4 and 1HP.
  • Two-year warranty.
    • UL 325 requires all commercial door operators to be either constant pressure to close or be equipped with a primary external monitored entrapment protection device.
    • Security+ 2.0™ safeguards your facility – with every click, a new code is sent to the commercial door operator so the door opens only for you.
    • Timer-To-Close conveniently and confidently closes the commercial door automatically after a predetermined amount of time has elapsed for added security and peace of mind.
    • Emergency Disconnect disconnects the operator from the door for manual lifting in an emergency.