Exit devices can be installed onto single doors, pairs of doors, double egress doors or pairs of doors with center mullion.
1. For a single door, the most common application uses a rim exit device. The non-handed, surface-mounted device is mounted onto the secured side of the door and the strike is mounted onto the jamb. Rim exit devices can be installed onto flush or wide stile metal, wood or composite doors. The device can be installed with entry trim or as exit only.
2. For pairs of doors, the most common light traffic openings application uses one rim and on vertical rod exit device. The active door will normally be the one with the rim exit device. The inactive door will have the vertical rod exit device. The reason is the vertical rods secure the door in place when locked. The rim device strike is mounted onto the inactive door. If the rim device is unlatched, the active door can be opened even if the vertical rod exit device is secured. If the vertical rod exit device is unlatched, both the inactive and the active doors will open.
3. For a double egress opening (each door swings in the opposite direction) pair of doors, two vertical rod exit devices, usually surface mounted, are the most common application. For this two-way traffic control application, each door can have two-point latching, enabling each door to operate independently of the other. If either door’s vertical rod exit device is unlatched, only that door can swing open.
4. The fourth application is a pair of doors with the doorway equipped with a center mullion. The center mullion is part of the doorjamb and can be removable or fixed. The recommended application is two rim exit devices. The non-handed, surface mounted devices are mounted onto the secured side of the doors and the strikes are mounted onto the mullion. Rim exit devices can be installed onto flush or wide stile metal, wood or composite doors. The devices can be installed with entry trim or as exit only.
INSTALLATION: YALE YM SERIES
I installed a Yale® YME2100F rim exit device and a 426F trim with keyed lock cylinder and auxiliary lever onto the side door of a pre-school. The Yale YM™ Series exit devices are certified ANSI/BHMA A156.3, Grade 1. The YME2100F exit devices are UL-cUL Listed for use on fire doors having a rating up to and including 3 hours for a 4’ BY 8’ single or 8’ BY 8’ pair of doors. The default model is designed for a 1-3/4” thick wide stile or flush doors. The Yale YME2100(F) rim exit device is equipped with deadlocking Pullman bolt.
The Yale YME2100 exit device lever trims feature the patented Free Wheeling lever mechanism, a clutch mechanism that allows the lever to float down 60 degrees when operated in the locked condition without retracting the Pullman bolt. The feature improves vandal resistance.
Yale 426F trim was chosen because it was slightly wider and taller than the original trim. This way, replacing the original trim with the 426F would cover any unpainted areas and door prep from the original trim.
The exit device trim is handed. To reverse the handing from Right Hand Reverse (RHR) to Left Hand Reverse (LHR) requires replacing the “blue” lever return spring with the “red” spring. To eliminate the need for reversing the handing, the 426F trim can be ordered LHR. The default (non-specified) handing is RHR.
Install the rim cylinder onto the 426F trim, cutting off the excess from the rear of the tailpiece. The rim cylinder does not directly operate the exit device. The rim cylinder operates a lever which disengages the operating mechanism when locked. When unlocked, the operating mechanism is engaged and turning the lever handle retracts the Pullman bolt.
When installing most functioning trim, the non-secured side of the door must be prepped to accommodate the operating mechanisms. Very little of the door prep is bored through the door. The only holes bored through the door are for mounting and to operate the trim and the exit device.
The door onto which the Yale exit device was installed was a metal clad door. A clad door is covered in the cladding material. For this door, metal covered the faces and the edges of wood material core door. Cutting the prep opening to accommodate the trim required cutting away the metal cladding.
Over the years, I have learned a somewhat easier way to prep a thinly cladded door. I take an old wood chisel, sharpen the edge and cut through the cladding using the corner of the chisel. Wide side of the chisel is always on the side of the opening being removed. This keeps the remaining edge of the clad pretty-much flat.
Yale provides a clear plastic template that is placed against the door face and jamb. Holes are used to locate the mounting holes and the location of the latch assembly hub.
After drawing the outline for the prep using the provided templates as a guide, I chiseled off the metal clad. To remove the wood material from this door, I use the diameter hole saw that best fits the opening I need.
Note: Once my guide hole has been drilled, I replace the bit with a drill blank. The drill blank cannot further enlarge the opening and permits me to closely line-up at the opening edge.
Once the door has been prepped, two of the trim mounting screws secure the latch assembly to the door. The remaining two holes secure the other side of the trim against the door. Do not tighten the latch assembly to the door before installing the bar assembly.
The bar assembly is slid against the latch assembly, leveled and secured. Then the four trim/latch assembly mounting screws are tightened. The bottom end cap is secured to the bar assembly. The top end cap protects the push bar. The Yale YME2100F bar assembly is secured to the latch assembly by the cover. Test the operation of the exit device and trim with the door open. Test the operation of the exit device and trim with the door closed.
The Yale YM Series exit devices are available in standard 36”, 42” and 48” lengths, in a variety of finishes and there are a number of trim functions available. The YME2100 Series Exit Devices and Trim have a one-year warranty.
For more information, contact your local locksmith distributor or Yale, Web Site: www.yalecommercial.com
I was invited to the retrofitting of the lock hardware on a pair of wide stile aluminum doors equipped with rim exit devices latching onto a mullion.