Von Duprin 7847 QEL Series

The 7847 concealed vertical rod device for use on single or double metal doors, UL listed for panic exit hardware. These are certified to ANSI/BHMA A156.3 2014, grade 1. Quiet electric latch retraction (QEL) provides electronic control of an exit device for environments where limited operational noise is desired. These devices always provide mechanical egress. The electrified latch retraction can also be activated by an access system or building automation system to unlatch the exit device momentarily. Often the QEL is used with a credential reader and access control system to unlock the door momentarily for authorized users. The QEL can also be configured to electronically retract the latch for an extended period of time to allow free entry. This is a convenient alternative to mechanical dogging. If manual dogging required on a panic rated QEL device, the hex dogging option is available, to order specify HD-QEL. The QEL option is available on panic devices and fire rated devices. UL approved for class II circuit applications. The QEL option does not include the power transfer from door to frame, the power supply, or the control operator. Refer to EPT-2 power transfer and the PS902 or 914 power supply. The 900 series power supply with the 2RS, 4RL or 4R board is the minimum required. Other option boards available for other functions, see 900 Series power supply for additional information. The QEL has a low in rush current, so it can be used with standard Schlage power supplies. Calculate the peak current draw of all devices in the system to determine the required amperage of the supply. The -2RS option board is designed to control two electric latch retraction devices and provide time delay between the firing of outputs is required. The power transfer is also sold separately.

Features:

• ANSI/BHMA Grade 1 certified and backed by Allegion services and support
• Available in a wide range of device types, options, lever designs, and finishes
• Available in 3' and 4' lengths that are field sizeable for single and double door applications

Specifications:

• Device Functions: Device ships EO/DT/NL; field selectable
• Device lengths:
• 3': 2' 6" to 3' (762mm to 914mm) door size
• 4': 3' to 4' (914mm to 1219mm) door size
• Device centerline from finished floor:
• 39-13/16" (1011mm)
• 39-11/16" (1008mm) with mullion
• Center Case: 7-7/8" x 2-3/4" x 2-3/8" (200mm x 70mm x 60mm)
• Mechanism Case: 2-5/16" x 2-1/8" (59mm x 54mm)
• Projection:
• Pushbar neutral - 3-13/16" (97mm)
• Pushbar depressed - 3-1/16" (78mm)
• Latch bolt: Deadlocking, 5/8" (15.875mm) throw
• Pushbar length:
• 3': 18" (457mm)
• 4': 24" (610mm)
• Fasteners and sex bolts (SNB): Includes screw pack for 1-3/4" (4mm) and 2-1/4" (57mm) thick metal or wood doors (Optional 425 SNB available)
• Electrified Options:
• LX: Latch bolt monitor switch
• RX: Request to exit
• E: Electric locking and unlocking trim; no cylinder override
• ALK: Alarm exit kit
• CON: Allegion Connect
• QEL: Quiet electric latch retraction
• Bolt retraction via switch
• Converts exit door to push-pull operation
• Voltage: 24VDC
• Current: 1.0 A inrush (0.5 sec.) / 0.14 A holding
• Mechanical Options:
• GBK: Glass bead kit
• LBR: Less bottom rod
• SNB: Sex bolts
• SEC: Security screws
• Dogging Feature: Hex key dogging standard
• Dogging Options:
• CD: Cylinder dogging
• LD: Less dogging
• QEL: QEL options available
• Strikes:
• 338: Top—Unfinished
• 385A: Bottom—Unfinished

Trim Functions:

• EO: Exit only.
• No outside Trim
• DT: Dummy trim
• Pull when dogged (not recommended for fire device)
• NL: Night latch
• Key retracts latch bolt
• Rim cylinder
• NLOP: Night latch
• Key retracts latch bolt, optional pull required
• Rim cylinder
• L: Lever
• Key locks and unlocks
• 1-1/4" mortise cylinder
• Handed, reversible lever
• Electrified lever operation available
• LDT: Lever, dummy trim
• Pull when dogged (not recommended for fire device)
• LNL: Lever, night latch
• Key retracts latch bolt
• 1-1/4" mortise cylinder
• Handed, reversible lever
• LBE: Lever, blank escutcheon
• Always operable (no cylinder)
• TL: Turn lever
• Key locks and unlocks; or key unlocks, then relocks when key is removed (use with DT trim)
• 1-1/4" mortise cylinder
• TLBE: Turn lever - blank escutcheon
• Blank escutcheon always operable (no cylinder, use with DT trim)

Finishes:

• 605 - Bright brass
• 606 - Satin brass
• 612 - Satin bronze
• 619 - Satin nickel
• 625 - Bright chrome
• 626 - Satin chrome
• 628 - Anodized aluminum
• 630 - Satin stainless steel
• 643e - Aged bronze
• 710 - Duranodic dark bronze