Commercial Openers

Commercial Garage Door Openers

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Package Includes

LiftMaster GT
  • 3‑button control station with LED
  • Radio receiver & external radio control terminal
  • Chain pack (according to door height)
  • Installation hardware
  • Rail according to door height

LiftMaster - 8550WLB

Features and benefits of LiftMaster 8550WLB

LiftMaster-GT

FEATURES

The GT model is a heavy industrial-duty trolley door opener, as manufactured by The Chamberlain Group and is for use on standard lift sectional doors. It is rated for 25 cycles per hour constant high loading. In excess of 90 cycles/day.

Radio Receiver
  • Trolley type door opener
  • Voltage/phase:
    • Single-Phase: 115 V and 230 V
    • 3-Phase: 208 V, 230 V and 460 V, 575 V
  • Horsepower: available in ½, ¾ and 1 HP
  • Additional headroom required: 4 in (102 mm)
  • Required depth: Door height + 48 in
  • Built‑in 3‑channel, 315 MHz radio receiver accepts up to 23 Security+® or unlimited DIP switch remotes. 3‑button remotes can be programmed for OPEN/CLOSE/STOP operation
  • Maintenance Alert SystemTM establishes a routine maintenance schedule based on the number of cycles or calendar date. Includes self‑diagnostic system that allows you to troubleshoot up to eight different error codes
  • Timer‑to‑close allows programming in 1‑sec or 15‑sec increments and permits timed automatic door closure after the door reaches the fully open position; requires monitored photosensors, either CPS‑U, CPS‑UN4, or a 4‑wire edge, using the CPS‑EI edge interface
  • Continuous‑duty high‑starting torque motor with instant reverse.
  • Thermal motor overload can be easily reset from the 3‑button floor level control station
  • Removable hinged electrical box cover.
  • Quiet‑gliding rail spacers.
  • Single‑or three‑phase, capacitor start on single‑phase.
  • Motor is removable without affecting limit switch settings.
  • All operators are factory preset to C2 wiring, providing momentary contact to open and stop, with constant contact to close. Monitored entrapment protection, using approved photo sensors CPS‑U are standard. All other wiring types, B2, T, TS and FSTS, can be selected with the selection of a switch. LiftMaster CPS‑UN4 and CPS‑RPEN4 photosensors or a monitored 4‑wire sensing edge (via a CPS‑EI Edge Interface Card) are optional. Logic 4.0 door openers can only accept UL‑approved LiftMaster CPS‑U, CPS‑UN4, CPS‑RPEN4 or CPS‑EI monitored entrapment protection devices.
  • 10:1 first stage using heavy‑duty gears running in oil bath; cast iron housing; #41 chain second stage; #41 chain on trolley.
  • Sealed roller bearing in gear reducer.
  • Heavy‑duty solenoid‑actuated brake.
  • Adjustable friction clutch helps protect against major damage to door and operator should the door meet an obstruction.
  • Spring‑loaded disconnect for emergency manual operation.
  • Motor overload protection.
  • High‑strength dual L‑rail track with exclusive nylon quiet‑gliding chain guides on rail spacers for quiet, smooth operation.
  • High‑strength dual L‑rail track with nylon quiet‑gliding chain guides on rail spacers for quiet, smooth operation.
  • 1.5 second delay‑on‑reverse circuit to prevent premature door and operator wear.
  • The Timer‑to‑Close automatically closes the door – programmable in 1‑second or 15‑second increments.
  • The mid‑stop stops the door at programmable mid‑stop during open travel.
  • The Maximum Run Timer signals the door to reverse or stop if closing time exceeds maximum by more than 10 seconds.
  • Maintenance alert system (5 000 to 10 000 cycles).
  • UL and CSA listed.
  • 2‑year warranty.
Security+2.0_Logo
Security+2.0_Logo

CPS® commercial protector system®

The presence of primary entrapment protection is standard CPS‑U for all modes. Primary entrapment protection devices are monitored continuously to ensure safe operation of the door and limit door opener functionality should an obstruction be detected or in the event of device failure. Optional LiftMaster Monitored Entrapment Protection devices, CPS‑UN4, CPS‑RPEN4 and CPS‑EI, are designed to work in conjunction with LiftMaster commercial door openers 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.

Warning

Garage doors and garage door openers can be dangerous if not installed and verified by a professional and not used properly. Children must be supervised by an adult when they are inside or in proximity of the garage.

LiftMaster MH

Features and benefits of LiftMaster MH

LiftMaster-MH

FEATURES

The MH model is a medium‑duty hoist operator, as manufactured by The Chamberlain Group. and is for use on vertical or high lift sectional doors or small rolling doors and grilles. It is rated for 12 cycles per hour during peak periods up to 50 cycles / day.

Radio Receiver
  • Drive system: chain hoist
  • Single phase: 115 V
  • Horsepower: ½ HP
  • Minimum side room required: 18 in (457 mm)
  • Solid‑state Medium‑duty logic circuit board.
  • High‑starting torque operator with instant reverse.
  • Capacitor start on single‑phase
  • 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.
  • Motor is removable without affecting limit switch settings.
  • Heavy‑duty solenoid brake
  • First‑stage heavy‑duty 4L V‑Belt; second and third stages #48 chain
  • Heavy‑duty oil‑filled bushings.
  • Adjustable friction clutch helps protect against damage to the door and opener should the door meet an obstruction
  • Provides emergency manual operation using an electrically interlocked floor level disconnect and chain hoist mechanism.
  • Motor overload protection.
  • 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
  • UL and CSA listed.
  • 2‑year warranty.

STANDARD SECURITY SYSTEMS

YOUR SECURITY, OUR PRIORITY!

CPS® commercial protector system®

The presence of primary entrapment protection is standard CPS‑U for all modes. Primary entrapment protection devices are monitored continuously to ensure safe operation of the door and limit door opener functionality should an obstruction be detected or in the event of device failure. Optional LiftMaster Monitored Entrapment Protection devices, CPS‑UN4, CPS‑RPEN4 and CPS‑EI, are designed to work in conjunction with LiftMaster commercial door openers 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.


Warning

Garage doors and garage door openers can be dangerous if not installed and verified by a professional and not used properly. Children must be supervised by an adult when they are inside or in proximity of the garage.

Package Includes

LiftMaster MH Operator
  • Chain tensioner
  • 3‑button control station
  • Receiver included (transmitter in option)
  • Hardware bag for installation (includes all necessary hardware for installation)

Package Includes

LiftMaster APT Operator
  • 3‑button control station with LED
  • Radio receiver external radio control terminal
  • Chain pack (according to door height)
  • Installation hardware
  • Rail according to door height

LiftMaster APT

Features and benefits of LiftMaster APT

LiftMaster-APT

FEATURES

The LiftMaster APT model is a low‑profile apartment house door opener, as manufactured by the Chamberlain group and is for use on standard lift sectional doors. It is rated for more than 100 cycles per day.

  • Trolley type door opener
  • Single Phase: 115 V and 230 V
  • Horsepower: ½ HP
  • Motor: Continuous‑duty high‑starting torque motor with instant reverse and overload protection. Available in ½ HP; single‑phase capacitor start motors. Removable without affecting limit switch settings.
  • Wiring type: All operators are factory preset to C2 wiring, providing momentary contact to open and stop, with constant contact to close. Monitored entrapment protection, using approved photo sensors CPS‑U are standard. All other wiring types, B2, T, TS and FSTS, can be selected with the selection of a switch. LiftMaster CPS‑UN4 and CPS‑RPEN4 photosensors or a monitored 4‑wire sensing edge (via a CPS‑EI Edge Interface Card) are optional. Logic 4.0 door openers can only accept UL‑approved LiftMaster CPS‑U, CPS‑UN4, CPS‑RPEN4 or CPS‑EI monitored entrapment protection devices.
  • Additional headroom required: 4 in (102 mm)
  • Control circuit: 5V DC NEC Class 2
  • Brake: Heavy‑duty solenoid‑actuated brake.
  • Drive reduction: First‑stage heavy‑duty 4L V‑belt; second and third stages #41 chain; output on trolley #48 chain.
  • Bearings: Industrial ball bearings on output shaft; heavy‑duty, oil‑filled on reduction shafts.
  • Friction clutch: Adjustable friction clutch helps protect against major damage to door and opener should the door meet an obstruction.
  • Rail assembly: High‑strength dual L‑rail track and quick‑mount header bracket which provides fast, swing‑up installation.
  • Construction: NEMA 1 type electrical box, heavy‑duty 11‑gauge steel frame with durable powder coat finish, all reduction sprockets drilled and pinned to shafts.
  • Delay‑on‑reverse circuit: 1.5-second delay‑on‑reverse circuit to prevent premature door and opener wear.
  • Auto‑reconnect trolley assembly: Automatic reconnect trolley assembly with nylon inserts in case of manual operation.
  • Quiet operation: Quality resilient‑mount motor, nylon inserts on trolley assembly and nylon quiet‑gliding chain guides on rail spacers provide quiet, smooth operation.
  • Low‑profile design: Low‑profile design can be ceiling‑mounted for low headroom applications.
  • Timer‑to‑close: Automatically closes the door – programmable in 1‑second or 15‑second increments
  • Mid‑Stop: Stops the door at programmable mid‑stop during open travel.
  • Maximum run timer: Signals the door to reverse or stop if closing time exceeds maximum by more than 10 seconds.
  • Maintenance alert system (5 000 to 10 000 cycles)
  • UL and CSA listed.
  • 2‑year warranty.

STANDARD SECURITY SYSTEMS

YOUR SECURITY, OUR PRIORITY!

CPS® commercial protector system®

The presence of primary entrapment protection is standard CPS‑U for all modes. Primary entrapment protection devices are monitored continuously to ensure safe operation of the door and limit door opener functionality should an obstruction be detected or in the event of device failure. Optional LiftMaster Monitored Entrapment Protection devices, CPS‑UN4, CPS‑RPEN4 and CPS‑EI, are designed to work in conjunction with LiftMaster commercial door openers 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.


Warning

Garage doors and garage door openers can be dangerous if not installed and verified by a professional and not used properly. Children must be supervised by an adult when they are inside or in proximity of the garage.

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