Electrifying Existing Hardware With the SARGENT 56-Electric Latch Retraction

SARGENT’s Next Generation 56 - Electric Latch Retraction 80 Series Exit Device and ELR retrofit kit is designed for use with the 80 Series exit devices.

SARGENT has introduced the Next Generation 56 - Electric Latch Retraction (ELR) 80 Series Exit Device and ELR retrofit kit designed for use with the 80 Series exit devices. As part of a complete exit device, the SARGENT 56 meets ANSI A156.3, Grade 1 and is UL Listed 10C. In addition, the 56- ELR is available for fire-rated devices that can be integrated into the building’s fire detection system.

The 56- Electric Latch Retraction incorporates a powerful motor rather than a solenoid to unlatch the exit device. The motor provides two advantages. First, it reduces the necessary size of the 24 volt filtered/regulated power supply as the current draw for the motor to retract the latch is only 0.9A@24VDC. Once energized, the current draw required for maintaining the push rail in the dogged position is 0.15A@24VDC. The second advantage of a motor over a solenoid powered latch retraction mechanism is the quiet operation. In fact, it is the quietest latch retraction on the market.

Hospitals, campuses, auditoriums and theaters are ideal applications. Next Generation 56- Electric Latch Retraction can be used with rim, concealed vertical rod, surface vertical rod, and mortise style 80 Series Exit Devices. This can be a plus in various institutional settings.

NOTE: The minimal current draw required to power a SARGENT 80 Series Exit Device using a 56- Electric Latch Retraction push rail enables the exit device to be wired using an electrified hinge instead of an Electrical Power Transfer (EPT).

When powered, the SARGENT 80 Series Exit Device equipped with the 56- Electric Latch Retraction push rail retracts, retracting the latching mechanism. This way, the retracted push rail provides visual confirmation of the unlatched door.

The 56- Electric Latch Retraction Accessory kit is of modular construction. The 80 Series Exit Devices (manufactured after 1995 only) can be upgraded in the field to have electrical latch retraction. The 56- equipped devices are also field-serviceable. Part of the field serviceability is the retraction position is adjustable to ensure proper opening.

The 56- Electric Latch Retraction is equipped with an internal unlock timer that retracts the push rail for up to ten seconds. When energized, the push rail and the latching mechanism are retracted, permitting the door to be opened for the programmed period of time.

Using a second method, the 56- can be wired directly using a momentary switch or maintained type of switch. When power is supplied to the rail, the push rail and the latching mechanism(s) are retracted and remain in this position until de-energized (power interrupted) and the push rail becomes undogged and the latchbolt(s) will extend.

To retrofit an existing 80 Series Stainless Steel Rim Exit Device, a part number (ED56J) Electric Latch Retraction Accessory Kit was installed. A McKinney QC12 power transfer hinge was installed prior to this installation to accommodate the electrification.

Converting an 80 Series Rim Exit Device to electric latch retraction requires the 56- Accessory Kit; part # ED56. You must specify the door width E (32”), F (36”), G (48”), or J (42”) when ordering the 56- Accessory Kit. An added plus is that there is no up charge for ANY size rail length. This kit contains a push rail assembly with mounted motor and wire harness, a motor controller assembly with shorting jumper installed, mounting screws and installation instructions. Only a Phillips Head screwdriver is necessary for this installation, which takes approximately 10 minutes.

The installation begins with the disassembly of the existing rail by removing it from the center chassis. Once removed, the insert and the push assembly are slid off of the rail. Four screws must first be removed from the bottom of the rail securing the push assembly to the rail.

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