SDC LR100 QuietDuo Retrofit Electric Latch Retraction Kit for Exit Devices, 24 V DC

SDC lists the LR100ARK for Adams Rite 8800 and 3700 rim devices, 8100, 8200 and 3100 surface vertical rod (SVR) devices and 8500, 8600 and 3600 concealed vertical rod (CVR) devices, on 36 to 48 in openings. It retracts the latch only, not the push pad, and SDC says it needs the 631RF power supply. A 30 in opening takes the LR100ARK-EM, which SDC also lists for the 8700 rim device.

SDC lists the LR100AWK for the Arrow S1250 rim device and S1150 SVR device on 36 to 48 in openings. The Arrow ED910 takes a different kit, the LR100AWK-ED910, which we quote on request.

SDC lists the LR100CAK-EM for Cal-Royal 2200, F2200, 9800 and F9800 rim devices and 2260, F2260, 9860 and F9860 SVR devices on a 36 in opening. It is a two-piece kit: SDC's wiring drawing puts its controller board in the box of an SDC 600 series power supply, wired to the kit in the door through a power transfer hinge.

SDC lists the LR100CAK-9800 for the Cal-Royal GLS9800 rim device and its CVR version on a 36 in opening. SDC's documents write that CVR model three ways (GLSCVR9800, GLSVR9800 and GLSCVR9860), so send a photo of the label and we confirm the kit in writing.

SDC lists the LR100DXK for Detex 10 and 40 rim devices, 20 and 50 SVR devices and 80, 81, 62 and 63 CVR devices on a 36 in opening. A Detex Value Series device needs a modified cover: order Detex part 100518-11, or modify the existing cover as SDC's installation sheet shows.

SDC lists the LR100JAK for the Jackson 2095 rim device and 2085 CVR device on a 36 in opening. The kit replaces the push bar end cap with its own End Cap 7194 and comes with a new cover, and on a vertical rod device the top strike is replaced with the ST8P strike in the kit.

SDC lists the LR100PDK for PHI (Precision) 2100, 2400 and 5100 rim devices, 2200LBR and 5200LBR SVR devices and 2800LBR and 2600 CVR devices on 36 to 48 in openings. Its installation sheet names the 2101, 2201, 2400, 2600, 2801, 5100 and 5200. This is the Precision 2100, a different device from the Accentra™ 2100.

SDC lists the LR100YDK for Yale 7100, 7100-2 and 7200 rim devices, 7110 and 7210 SVR devices and 7120 and 7220 CVR devices on 36 to 48 in openings, and the LR100YDK-EM for 30 in openings. SDC lists no LR100 kit for the Accentra 2100 exit device, formerly the Yale 2100, so we do not offer one for it.

SDC warns that a 42 or 48 in device modified to fit a 36 in or smaller opening may not have room for the kit. Measure from the end of the touchpad to the end rail and send us the figure with a photo, and we check it with SDC's sheet before anything ships.

The rods have to be adjusted after the kit goes in: SDC has the installer energize the kit so the latch is dogged down, then reconnect the rods and set them.

Every kit runs on 24 V DC. SDC recommends its 602RF for a single door, and the 602RFUR1 or a 634 series supply for a simultaneous pair. The LR100ARK needs the 631RF, or the 631RFUR1 or a 634 series supply for a pair. With another maker's supply, SDC recommends a linear, regulated and filtered supply rated at least 2 A per kit.

SDC describes the kits as being for panic and fire rated exit devices and lists UL 305, UL 10C and ULC-S104 among their certifications. Whether and how a kit may be used on your fire-rated door is for your Authority Having Jurisdiction (AHJ).

SDC makes LR100 kits for other exit devices. Send the make, model and opening width, or a photo of the device and its label, and we quote the kit SDC lists for it.

Each kit has its own SDC installation sheet, listed under Documents. SDC's sheets for every kit here except the LR100JAK warn that a 42 or 48 in device cut down for a 36 in or smaller opening may lack room, so measure from the end of the touchpad to the end rail first.

SDC's sheets have any existing mechanical dogging removed from the device before the kit goes in.

24 V DC, plus or minus 10 percent: red to positive, black to negative. On the LR100CAK-EM the controller board goes in the SDC 600 series power supply box, and 8-conductor, 18 to 22 AWG jacketed cable, 100 ft at most, runs from it through a power transfer hinge to the kit's supplied pigtail, colors matched at each end.

Energize the kit so the latch is dogged down, then reconnect the rods and adjust them, as each sheet describes. The Jackson kit also replaces the top strike with its ST8P.

Replace the push bar end cap with the kit's End Cap 7194, fit the roller clevis over it and lock it with the two supplied set screws, then fit the new cover and end caps.

The cover has to be modified: order Detex part 100518-11, or remove the metal inserts, snip off the ribs and cut out the front wall of the existing cover, as SDC's sheet shows.

Assemble the kit's brackets for the device length, fit the bracket assembly over the push bar support brackets and attach it to the device's linkage, then power the kit to draw the sliding latch bracket open and lock it with the set screws. Rim and vertical rod devices have separate SDC sheets.

Both kits work through a linkage. On the Yale device it hooks to the push bar's bottom cross bar and is pinned to the kit with a grooved clevis pin and retaining clip. On the Precision device the kit fixes to the device with two supplied screws.