Low Headroom and High Security Join Forces Against HurricanesThe Spiral® Low Headroom Hurricane Zone Door brings high speed and high security to applications with unique space limitations in high velocity hurricane zones. Whether headroom is severely limited because of low ceilings, joists or other overhead obstructions, the LH-HZ is engineered for all types of low lintel challenges.
Clean lines and a refined structural design give the Spiral LH-HZ door a stylish and high-tech look. With 192 powder coat options, the door can be customized to compliment any color palette. Even without the custom colors, the anodized aluminum slats will not corrode, so you can count on that look to last for many years even under the worst weather conditions, including hurricanes.
Miami-Dade NOACertified independent testing and Notice of
Acceptance (NOA) from Miami-Dade County Building Code Compliance Office- approved for use in High Velocity Hurricane Zones (HVHZ).
Low HeadroomThe low lintel design requires only 11 inches of clearance.
High SecurityRigid, aluminum slat construction and optional integrated locking system provide unparalleled security.
Fast and SmoothOpens effortlessly at up to 60 inches per second for improved traffic flow and greater access control. Counterbalance incorporates custom engineered springs without bungee cords.
Lower Energy CostsThe fast opening and closing speeds minimize the air exchanged between climate controlled environments. A durable rubber
membrane covers the reinforced hinges providing a tight seal.
Quiet OperationThe high performance technology and low headroom angled track offer a quiet and unobtrusive operation.
System 4™ ControllerThe System 4 provides complete digital control of all door functions. It provides soft starts and stops, speed control, timing adjustments and self-diagnostic capabilities.
System 4™ Door Controller (Standard)Incorporating state-of-the-art motion control technology, the System 4 controller combines the flexibility and performance of AC Drive technology with the ease and precision of digital control.
ACTIVATORSThe System 4 door controller is designed to operate with many different types of activators, depending on the application and operating environment.
Floor Induction Loop (Optional)Activation loops embedded into the concrete on both sides of the doorway substantially reduce operator error in opening and closing doors. With no moving or exposed parts, floor induction loops are extremely reliable.
Motion Detectors (Optional)Motion detectors operate on microwave technology. They detect pedestrian and vehicle motion in a prescribed area. The detector sends a signal to the controller to open the door.
Presence Sensors (Optional)Presence sensors detect pedestrians and vehicles in the area of the detector. Motion is not necessary. The sensor signals the controller to open the door.
Radio Controls (Optional)A radio control consists of a transmitter and a receiver. The vehicle operator activates the transmitter which sends a signal to the receiver. The receiver then signals the controller to open the door.
Push Button (Optional)The push button is generally used with pedestrian traffic and is typically mounted on the wall near the door. Pedestrians push the button as they approach the door, which signals the door to open.
Pull Cords (Optional)The pull cords are switches mounted on the ceiling. Pedestrians and vehicle operators pull the cord as they approach the door, signaling the controller to open the door. Vehicle operators generally have to slow down to pull the cord.
Multiple Activators (Optional)The System 4 door controller permits many activators to be used in multiple combinations. For example, a door can be opened by forklifts through induction floor loops and by pedestrians through a push button, each with independent closing times to allow for pedestrians passing through the door.
Side Frame OptionsOptional stainless steel package available.
Electrical Control OptionsSystem 4™ controller has programmable inputs and outputs to accommodate special control applications without additional electrical components.
AirlocksIn airlock applications, one controller with various activators permits doors to be interconnected so only one door is open at a time.
Powder CoatingOptional powder coating to RAL standard colors.
Related Documents:Spiral LH-HZ Product Information Sheet
Rytec Spiral LH-HZ Owner's Manual
Specifications:Subject to change
Model:Rytec® Spiral® LH-HZ Door
Notice of Acceptance:Miami-Dade, Florida
NOA 12-0917.05 12/6/2012
Expiration Date: November 8, 2017
Standard Size:Up to 16 feet wide by 16 feet 4 inches high.
Door Panel:Double-walled aluminum
slats are 6 inches high by 1-3/16 inches
thick. Integrated rubber weatherseals
between each panel.
Side Frames:Galvanized steel side
frames with full height weatherseal on
both sides to seal against door panel.
Dual electric photo eyes are standard.
Optional stainless steel package available.
CounterbalanceUp to six extension
springs in each side column, depending
on the size of the door. The springs
assist the motor in opening the door.
Mechanical egress lever on side column
allows door to be opened in the event
of a power failure.
Bottom Bar:Extruded aluminum
bottom bar with control-reliable,
electric reversing edge.
Drive System:Three-phase, variable
speed AC Drive provides soft acceleration
and deceleration. Independent opening
and closing speeds provide flexibility to
accommodate any application.
Travel Speed:Opens at up to 60 inches
Electrical Controls:System 4 controller
housed in a NEMA 4 rated enclosure
with factory set parameters. Selfdiagnostic
features and a two-line,
32-character LCD display in English,
Spanish or French provide quick and
straightforward installation and control