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LiftMaster APT electric garage door opener

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.

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