The local authority having jurisdiction (LAHJ) permitted this installation as long as the EM lock was interfaced with the Fire Alarm Control Panel. Should a fire occur and the alarm activate, the Fire Alarm Control Panel will de-energize the EM lock.
The purpose of the Early Warning EM Lock is to not only separate the two portions of the building, but also to let the owner know if an unauthorized person has attempted entry into the rear portion of the building. The electrical room is in the back half of the building within approximately 40 feet of the door.
The magnet will be installed onto the forward side of the door adjacent to the door closer. This way should someone tamper with the door for more than four seconds, the very visible light panel will flash red and green until reset. To reset, access must be gained into the rear portion of the building.
For this installation, the equipment installed in addition to the Early Warning EM Lock is:
RCI Key Switch (part number R960NMA)
RCI Power Supply (part number 10-175UL)
RCI 12VDC 4AH Sealed Batteries (part number BB12-4)
22 AWG cable
The RCI Key Switch has a 1-5/8” x 4-3/4” extruded aluminum beveled edge plate that is ¼” thick. The switch is equipped with a SPDT maintained switch used to energized and de-energize the EM lock. Tamper-resistant screws are included.
An RCI 10-175UL power supply provides 1.75 Amps continuous filtered and regulated current output @ 12 or 24VDC. This UL Listed power supply is equipped with a latching fire alarm tie-in with manual reset.
In case of power loss, two sealed batteries were included to provide sufficient power for the building management to arrive.
The medical clinic has drop ceilings, making the wire runs easier. A finish wall separates the front portion of the building from the rear with drywall from floor to roof.
Wire runs required for this installation include:
110VAC to the power supply
A pair of wires from the power supply to power the Early Warning EM Lock
A pair of wires from the power supply to the key switch
A pair of wires from the power supply to the fire alarm panel.
The installation was straightforward. The building is relatively new, meaning the panels did not contain asbestos and could easily lift out of the way. We lifted about six panels to run the wires from the power supply to the door area. A hole was cut in the drywall for the key switch and to run the wires.
Power was available in the electrical/computer room for the power supply. The fire panel wiring was made available.
The included paper template for the armature plate and the EW8310 was used to roughly locate the EM lock. Three holes were drilled for the armature plate. Each hole was pilot drilled into the laminate faced wood door using a small diameter drill bit to prevent splitting. The sex bolt pilot hole was drilled slowly to prevent splitting as the bit pierced the back face laminate. The holes were drilled to their required sizes and depths.
The EM lock mounting bracket is handed and must be installed in the proper direction and position. The mounting bracket must be installed with the opening for the wiring on the same side as the cutout in the case. In addition, the mounting bracket must be positioned with the cutouts in the wider slot to hold the lock by the screws.
The mounting bracket has two narrow oval slots to pre-position the unit for installation. Once the two holes were drilled, and screws temporarily installed, the mounting bracket could be re-positioned by locating the EM lock against the armature plate.
Two wider oval slots in the mounting plate are used to locate the EM lock. These slots accommodate the two screws threaded into the lock case. Loosen the two screws and position them beneath the open end of the wider slots. Lift the lock until the screw heads are in the slots above the bottom of the mounting bracket. Slide the lock towards the door. The lock should be held onto the mounting bracket.
To ensure the EM lock was securely attached, 11 TEK™ screws attached the mounting bracket to the header. Although TEK screws were provided, each of the holes was first center punched and a 1/8” pilot hole was first drilled.
Important: Before installing electronic locks, it is important to check with the “Local Authority Having Jurisdiction” (LAHJ). An electromagnetic lock is designed to provide security for a...
RCI Introduces DE8310 Delayed Egress And EW8310 Early Warning Electromagnetic Locking systems