PDQ Manufacturing specializes in commercial-grade door hardware, offering a wide range of mechanical and electronic locks, exit devices, and access control solutions.
PDQ 製造, commonly referred to as PDQ Locks, is a U.S.-based manufacturer of architectural door hardware located in Lancaster, Pennsylvania. Since its founding, the company has focused on delivering high-quality, commercial-grade security products that meet ANSI/BHMA Grade 1 standards and international building codes. The PDQ product line is extensive, covering everything from standard cylindrical and mortise locks to advanced standalone electronic access control systems and delayed egress exit devices.
Designed for durability and ease of installation, PDQ products are widely used in educational, healthcare, and commercial facilities. The brand emphasizes a blend of performance, aesthetic appeal, and affordability, providing secure solutions that comply with life safety and accessibility requirements.
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To determine the hand of the door, stand on the outside (secure side). If the hinges are on the left, it is a Left Hand (LH) door. If the hinges are on the right, it is a Right Hand (RH) door. Reverse bevels apply if the door swings towards you.
Most PDQ electronic locks, such as the GTS and MRS series, are designed to use standard non-rechargeable alkaline batteries for optimal performance.
A UL 294-rated power supply providing a minimum of 1 Amp at 24VDC (+/-10%) is required. It must also be connected to the fire alarm system to cut power in an emergency.
Handing adjustments often involve rotating the chassis or rose plate. For specific models like the GTS Cylindrical Lock, you may need to remove the rose plate, unplug the motor connector, rotate the chassis 180 degrees, and reconnect the motor before reassembling.