What is a 320G door closer?

What is a 320G door closer?

Resolution: The “320G” is the # on a UL sticker attached to the arm of most LCN door closers, and is not a door closer model number. The “320G” means that the arm is not a mechanical hold open device and OK to use on fire doors.

What is the arm that closes a door called?

The “arm” (tail) rests against the door, and a spring that is twisted by the user opening the door closes the door by returning to its pre-twisted shape. This type of door closer is referred to as a “tail” spring and is one of the more simple mechanisms, having no damping control.

How do you slow down a door closer?

Make 1.5-2 turns counterclockwise to adjust the closing speed of the door. Turning the valve clockwise will slow down the closing speed.

How do I adjust my door closer arms?

How to Adjust a Standard Door Closer in 6 Steps

  1. Step 1: Remove the cover. If you can’t see the adjustment valves, then the closer has a cover that needs to be removed.
  2. Step 2: Close all of the valves.
  3. Step 3: Adjust the backcheck.
  4. Step 4: Adjust the sweep/main speed.
  5. Step 5: Adjust the latching speed.
  6. Step 6: Test the door.

How does a hold open arm work on a door closer?

friction hold open arms allow the door to be automatically placed in the hold open position until the user puts force on the door to disengage the friction hold and cause the door to close. a friction hold open arm can be used with the standard template of the door closer; it’s a simple replacement.

What is BC on door closer?

Door closer BC (or Back Check) means how the door responds when fully opened – the amount of resistance when opening the door past a certain point.

What is the backcheck on a door closer?

Backcheck: An optional feature in hydraulic door closers that prevents the door from opening too fast and slamming against the wall or other objects. The opening swing is slowed at a certain degree and controls the speed of the door during the balance of its opening cycle.

How do you adjust a door closer arm?

Remember, when it comes to turning door closer adjustment screws, a little goes a long way. Start with no more than 1/8 of a turn. Turn the adjustment screw clockwise to slow the door closer down, counter-clockwise to speed it up, then get down off the ladder and observe the effect. Open the door and watch it close.

How do you fix a door closer that won’t close?

Can door closers be repaired?

There are many parts to the inner workings of a closer, but they usually can’t be adjusted, repaired or rebuilt. Replacing malfunctioning ones is often the easiest solution.

What is backcheck on door closer?