It’s a given that if you want to keep food inside a walk in cold, you must keep the cold air from escaping. That means, in part, making sure your door has an airtight seal. Fortunately, there are several components that help keep the door tightly closed and one of these is the door closer itself.

The door closer is a device that is located at the top of the door and consists of a roller mounted to the door that slides into a hook bracket mounted on the door frame.

One of the remarkable things about door closers is they require little attention. However, we do recommend that, at least once each month, operators examine the hook and roller for proper fit. For reference, see the images below of a closer properly engaged when the walk in door is closed and open.

 

Correct position of walk in door closer when door is closed.
Correct position of walk in door closer when door is closed.

 

Correct position of walk in door closer when door is opened.
Correct position of walk in door closer when door is opened.

 

Occasionally, the closer may become misaligned. The only adjustable part of the door closer assembly is the hook, so any necessary adjustment must be made there.

Remember, do not attempt to bend the hook as a means of adjustment. The hook is formed and tempered to resist deformation during normal use.

If the roller is too low, loosen all hook bracket screws and add flat washer(s) between the bracket and the header where the top two screws will keep them in place. Tighten the screws and check the hook position.

 

Walk in door closer with the roller too low.
Walk in door closer with the roller too low.

 

If the roller is too high, loosen all hook bracket screws and add washer(s) between the bracket and the header where the bottom two screws will keep them in place. As with the first adjustment, tighten the screws and check the hook position.

 

Walk in door closer with the roller too high.
Walk in door closer with the roller too high.

 

If the roller arm is accidentally bumped into a vertical position while the door is open, it must be manually moved to the horizontal position before the door is closed. Failure to do so may damage the door and/or the door closer.