Dorma A89P - 8900 Series Flat Form Non Hold Open Arm, Tri Pack Mounting

The A89P is built for the Dorma 8900 Series surface closer and nothing else. It's a complete arm assembly, not a closer body, so you need an existing 8900 Series closer on the door to install it on.

The A89P covers a reveal of 0 to 4 inches. Measure from the face of the door to the face of the stop on the frame: anything inside that range works with the included bracket. Deeper than 4 inches and this arm won't reach.

Non-hold-open. The A89P returns the door to the closed position every time, which is what you want on a door that has to latch, like a stair or corridor opening. If the job calls for the door to stand open, this is the wrong arm.

No. The A89P is sold as a complete arm for the 8900 Series, so on a bent or seized arm you swap the arm and bracket and leave the closer body and its hydraulic adjustment on the door. That's the cheaper repair on a fleet of openings, and it keeps the existing closer's spring setting.

The A89P is the arm assembly only, a flat form non-hold-open arm supplied as a tri-pack with the P89 bracket, sized for a 0 inch to 4 inch reveal and intended for use with the 8900 Series closer body. It replaces or converts the arm on a closer that is already hung. If the body itself is worn out, a complete surface closer is the buy instead: the Norton Rixson 8501A is a Grade 1 tri-mount surface closer with an adjustable size 1-6 spring, and the Dexter DCH1000 Series is a Grade 1 surface closer that mounts regular, parallel or top jamb with a full cover.

The A89P is a non-hold-open arm, so it will not park the door in the open position. For an opening that has to stand open, choose a closer built around a hold-open arm: the Accentra 51 Series carries a tri-packed hold open arm in sizes 1-6, and the Orca Hardware BHDC1958HO/PA is a hold open closer with a parallel bracket for 1-3/4 inch doors.

The bracket ships with it. The A89P is a tri-pack complete arm that includes the P89 bracket, so you have the arm and the parallel-arm bracket in one order.

Flat form describes the A89P's arm profile: a low-profile forearm used in parallel arm applications where the arm runs along the face of the door under the frame soffit. It's the push-side setup, versus a regular arm that projects out on the pull side. Parallel is the usual choice on corridor and out-swinging doors where a projecting arm would be in the way or get abused.

Three cover options can be added to the order: the standard full plastic cover (FC), a full plastic slotted cover (FCSL), and a full metal cover (FMC). The slotted cover is the one to pick where the arm passes through, and metal is worth specifying on abuse-prone openings like schools and multi-family common areas.

The A89P is a tri-pack mounting, non-hold-open flat arm. Closers supplied the same way include the Accentra 1101BF with a tri-packed non-hold open arm and adjustable spring sizes 1-4, the Accentra 2701 of the 2700 Series with a tri-packed non-hold open arm and sizes 1-6, the Arrow DCN325 with a regular/parallel tri-pack arm and adjustable spring size 1-6, and the Calibre CA9901, a Grade 1 tri-pack arm closer in sizes 2-5.

The A89P is a commercial flat form arm for 8900 Series closers, covering a 0 inch to 4 inch reveal. For a high-traffic or heavy exterior leaf where the whole closer is being specified, heavy-duty Grade 1 units are the peers to weigh: the BEST EHD9000 Series is extra heavy duty with adjustable spring sizes 1-6, the Sargent 1431 Powerglide is a heavy-duty Grade 1 surface closer with adjustable spring power, and the Falcon SC71A is a heavy-duty Grade 1 surface-mount closer.

The A89P arm comes in 689 aluminum, 690 dark bronze, 691 light bronze, 695 dark bronze and 696 satin brass. If the schedule calls for a Grade 1 closer as an assembly, Grade 1 surface closers in the set include the Corbin Russwin DC8200 Series for 1-3/4 inch doors, the Cal-Royal 500S barrier free closer with adjustable back-check, and the Norton Rixson 1601P of the 1600 Series with tri-mount design and 180 degree swing.

The A89P is a plain non-hold-open flat arm and has no delay function of its own. For an opening where the leaf needs to hang back before closing, look at delayed action closers: the Orca Hardware BHDC1958DA/PA is a delayed action closer with a regular arm and parallel bracket, tri-packed non-hold open, for 1-3/4 inch doors, and the Orca BHDC2011DA/PA is the same delayed action arrangement in the BHDC2011 Series.

The A89P flat arm covers reveals from 0 inch to 4 inch, which is the range that decides whether a top jamb or parallel application on a narrow frame will work. Where a storefront leaf is getting a new closer rather than an arm, the Norton Rixson 1600 Series aluminum storefront closer is built for that application with tri-style mounting and heavy-duty Grade 1 rating, and the Dexter DCM1000 Series is a Grade 1 tri-mount closer for regular, parallel or top jamb mounting.

Five: 689 aluminum, 690 dark bronze, 691 light bronze, 695 dark bronze, and 696 satin brass. If you're matching an existing run of 8900 closers in a building, order the arm in the same number that's on the closer body already, since 690 and 695 are both dark bronze but are not the same coating.

Commercial. The A89P is a commercial door control component, sized for the 8900 Series closers used on office, institutional and multi-family openings rather than a light residential closer.

The A89P arm is a commercial part for 8900 Series closers. Where the door sees light use and the whole unit is being replaced, lighter-duty peers include the LCN 1250 Series, a light-duty surface closer in sizes 1-5 with all-weather fluid, the BEST SL6000 Series, a Grade 1 light-duty closer with adjustable spring sizes, and the Falcon SC91A, a Grade 3 light-duty cast aluminum surface closer.

Servicing with the A89P arm keeps existing 8900 Series bodies in place. If the plan is instead to standardize on one closer family, the set carries series that span duty levels: BEST runs the HD7000 Series in medium duty, the HD8000 Series in heavy duty and the EHD9000 Series in extra heavy duty, all Grade 1; Sargent runs the 1131 and 1331 Series in medium duty and the 281 Series in heavy duty, also Grade 1. Choosing within one family keeps parts and mounting consistent across the doors.