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Model MHS is a Medium-Duty Logic slow-speed hoist operator for rolling sheet doors.
It features a high-starting torque motor with overload protection, adjustable friction clutch, a compact design, and an emergency chain hoist with an electric interlock.
Model MHS is a Medium-Duty Logic slow-speed hoist operator for rolling sheet doors. It features a high-starting torque motor with overload protection, adjustable friction clutch, a compact design, and an emergency chain hoist with an electric interlock.
MEDIUM-DUTY LOGIC TECHNOLOGY
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-RPEN4, 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-RPEN4, 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
Motor: Powerful 1/2 HP, 115V single-phase motor with instant reverse, capacitor start and overload protection. Removable without affecting limit switch settings.
Drive Reduction: First-stage heavy-duty 4L V-belt; second and third stages #48 chain.
Emergency Manual Operation: Easy emergency manual operation using a floor level disconnect or an electrically interlocked chain hoist mechanism.
Operator/Motor Control: Solid-state Medium-Duty Logic circuit board.
Control Circuit: 24V NEC Class 2.
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-RPEN4, 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.
Radio Receiver: 315 MHz radio receiver is integral to the Medium-Duty Logic board. Accepts up to 20 Security+® remote controls and unlimited DIP switch remote controls.
Bushings: Heavy-duty oil-filled bushings.
Friction Clutch: Adjustable, helps protect against major damage to door and operator should the door meet an obstruction.
Construction: NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powdercoat finish, all reduction sprockets drilled and pinned to shafts.
Push Button Station: 3-button station for OPEN/CLOSE functions is standard for all operators. Controls with 1, 2 and 3 buttons are available.
Warranty: 2-year warranty.