RH or LH arm for Pneumatic door closer

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A  LHR (left hand reverse) door uses a RH (right hand) door closer. A RHR (right hand reverse) door uses a LH (left hand) door closer.
A door can be handed in several ways. The easiest way is to stand on the Push side of the door. Push the door away from you as if you are going to walk thru the opening. If the hinges are on yo...
To determine the hand of a door, view the door from the outside, security side or key side of door.  Once there identify which side are the hinges located on the, right or left side of t...
Go to the push side of the door opening.  See above illustration. If door swings out to the left, it needs a left hand door closer. If door swings out to the right, i...
 Pneumatic Automatic Operators are used in areas where electrically operated devices are not convenient or permitted.  Consists of a modified, heavy-duty door closer for manual oper...
The 5100 strike details are listed below: Only operates with 12VDC or 24VDC power supply. Will not operate with AC transformer. 12 or 24VAC can be converted to 12/24VDC using Von Duprin SO12 o...
The maximum 925 tubing run length from the Control Box to the Door Closer is:  7980 Series Control Boxes --- 50 "Linear" feet from Control Box to Door Closer.  7900/7940 Series Control Boxes --...
Make sure that the hold open nut is not on upside down.  The orientation of the hold open nut depends on the mounting. On a Top Jamb "Push Side" mount, the hold open nut would poi...
First you need to determine if the closer is handed.  A handed door closer will only have a single shaft on one side of the closer for the arm to attach to. If the closer is handed...
When placing an order for a 4041/4040XP Rw/PA with hold open, it would be ordered as a 4041 /4040XP Hw/PA. For an existing Rw/PA requiring the addition of a hold open function, a hold open arm woul...
If the closer arm is touching the door, it is because the arm or the closer body is not templated correctly. Confirm dimensions are taken from the proper location and make corrections if needed. 
ST-1630 is required when mounting a 4041 or 4040XP door closer regular (pull/hinge) side with a concealed GJ100 or GJ410 series over head stop.