The facility where the Norton low power operator was installed has an exterior double door entry into the dining room. The entry is contained within a curtain style wall built with extruded aluminum members. The wall is infilled with glass and gives natural light the ability to penetrate into the building.
Important: Because this wall is not structural, a ¼” thick aluminum plate was constructed to mount on the aluminum framework, providing structural support and a solid mounting surface for the door operator. The bottom portion of the plate was secured to the edge of the header, and the top portion of the plate had a 90-degree bend creating a ½” “L” that reinforces the plate. The plate spans between the vertical members on each edge of the double doors.
The double aluminum glass narrow stile doors are mounted into the jamb with an overhead, concealed door closer and a center hung bottom pivot. For this installation, the door closer was removed and disabled by draining the fluid and removing the springs. It was reinstalled to function as the top pivot.
The aluminum plate was temporarily mounted onto the aluminum framework and measurements were made to locate the door operator. Holes were drilled and threaded where applicable. The plate was located onto the wall again and holes were located for mounting the plate onto the aluminum framework. Holes were drilled into the header and vertical members to accommodate rivet nuts.
The motor and closer subassembly was removed from the door operator. The operator has keyhole mounting holes in the base plate. The mounting screws must be loosely installed so the base can be slid over these four screws Once in position, all of the mounting screws were tightened.
For this push side of door installation, the 6060 heavy duty double lever arm was installed. The door opening ranges from 85 to 110 degrees in five increments. The arm shoe assembly has a spring buffeted stop. When the arm is mounted to the pinion, the pinion flat is opposite the arm marking. The arm shoe assembly should be perpendicular to the door face with the main arm at a slight tilt.
RF Door Switches
At this point, the Norton 6000 Series Low Power Door Operator is basically installed. The next series of steps is to install the two surface-mounted RF door switches. These activating door switches are powered by a 9 volt battery. The inside door switch was installed against the right vertical member at approximately 42” above the finished floor. The outside door switch was installed against the left vertical member.
Code requires the activating door switches to be mounted within one to five feet from the door. The door switch must be mounted where the user has full sight of the door but safely outside of the path of the door.
The next series of steps is to adjust the door closer power, backcheck position, backcheck, sweep and latch. The Norton 7500 door closer power is adjustable from size one to six. The backcheck position is adjustable from 90 to 75 degrees. To increase the backcheck, rotate the 1/8” hex wrench clockwise. To increase the sweep and latch force, adjust the valve counterclockwise. Without power, the door operator acts like a door closer.
There is no hard stop. Based on the location of the door and the age of the people using the door for access and egress, the operator can provide the backcheck.
For this installation, power was run prior to our arrival. The 6000 Series has connectors with terminal push buttons that are depressed to provide clearance for inserting the black and white wires. Be sure to attach the green ground wire.
An On/Off Power Switch is in the end cap closest to the hinges and a 3-position function switch is in the end cap closest to the latch. The three-position switch offers On, Off or Hold Open. Flip the three position switch to the Off position. Make sure the On/Off switch is in the Off position. Power the circuit. Flip the On/Off switch to the On position.
We programmed the closed and open positions. At this point the door is functionally operable. Any further adjustments are fine tuning.
For this installation, the opening speed was slowed to 80; the closing speed increased to 65 and the slow speed was unchanged. Door opening was adjusted to remain in the hold-open position for 10 seconds, sufficient time to accommodate a person using a walker. Because of the age of the residents, the screen display Push was left off, not activating Push and Go.