Dorma RTS88 Series - RTS01 Ove...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$931.00
$668.89
Dorma RTS88 Series - RTS01 Overhead Concealed Door Closer, Wood Door and Aluminum Frame (Non-Handed)

Dorma RTS88 Series - RTS01 Overhead Concealed Door Closer, Center Hung Side Load, Double or Single Acting, Aluminum Door and Frame (Non-Handed)

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Model: RTS01 105 NHO SZ3
$931.00
$668.89

In Stock (leaves warehouse same day if ordered before 3pm ET)

$931.00
$668.89
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DORMA RTS88 Series Overhead Concealed Door Closer

The RTS88 is designed to give lasting, dependable service where surface applied units and other types of closers are not suitable, or would interfere with the architectural design. It can be easily installed in wood, aluminum, or hollow metal doors and frames, for single and double-acting doors.

  • Concealed installation
  • For single and double-acting doors
  • Dependable and easy to Install

Aesthetic advantages

Architects are often challenged to design buildings that are both beautiful and functional, down to the last detail. The DORMA RTS88 overhead concealed door closer offers the perfect solution for those who prefer the aesthetic advantages of a concealed door closer.

Vandalism protection

The RTS88 is an excellent replacement closer for problem entrances encountering vandalism of surface applied closers.

Benefits for the contractor

Contractors appreciate the RTS88 closer, because the majority of door and frame preparation is done prior to installation of the unit, resulting in less on-site machining.

Resources:
RTS88 Series Catalog

Manufacturer Resources

Product Specs

Product Group:
Door Controls
Series:
RTS Series
Product Subgroup:
Door Closers - Overhead Concealed
Product Type:
Overhead Concealed Door Closers
Subcategory:
Concealed Door Closers
Door Weight:
250 lbs
Door Swing:
Single or Double Acting
Commercial/Residential:
Commercial
Package Features:
CH Side; Aluminum Door and Frame
Product Model:
RTS01
Door Hand Direction:
Non-Handed
Product Category:
Door Controls
Department:
Door Hardware

Dormakaba RTS01 105 NHO SZ3 – Frequently Asked Questions

1) Will the Dorma RTS88 RTS01 closer handle a 250 lb aluminum entrance door?
The RTS01 is rated for doors up to 250 lbs, and this configuration is built for aluminum doors and frames with center hung side load hardware. It is a commercial-duty unit, so it suits storefront and main entrance traffic rather than light residential openings.
2) Do I need to specify left or right hand when ordering the RTS01 overhead concealed closer?
No handing to specify. The RTS01 is non-handed and works single or double acting, so one part number covers both swing directions. What you do have to pick is spring size, cushion stop angle, hold open, and package option.
3) Which spring size should I order on a Dorma RTS88 closer for a 3'-0" exterior door?
For a 2'-6" to 3'-0" exterior door, SZ3 is the standard closing force. SZ4 is the strongest and covers 3'-0" to 3'-6" exterior or 3'-6" to 4'-0" interior. SZ2 gives a light opening force. If the opening has to meet reduced opening force, order BFE for exterior 3'-0" doors or BFI for interior 3'-0" doors.
4) Can the RTS88 RTS01 be used on wood or hollow metal doors, or only aluminum?
The RTS88 series installs in wood, aluminum, or hollow metal doors and frames. The RTS01 configuration specifically is packaged for aluminum door and frame with center hung side load, so if your opening is wood or hollow metal you want the matching package for that material rather than this one.
5) What are the alternatives to the Dorma RTS88 if I need a center hung concealed closer from another brand?
Two close matches in center hung concealed: the Norton Rixson 73 Series is a heavy duty Grade 1 double acting unit with a cover plate, also rated 250 lbs, which is the nearest equivalent on door weight. The Norton Rixson 608 Series and 700 Series are standard duty center hung units rated for 200 lb doors, so they step down in capacity. If your doors are offset hung rather than center hung, the Norton Rixson 0608 Series is the standard duty offset version.
6) What is the closest equivalent to the Dorma RTS88 RTS01 for a center hung double acting aluminum entrance?
The Norton Rixson 73 Series is the nearest match. It is a center hung double acting overhead concealed closer supplied with a cover plate and rated to 250 lbs, the same door weight the RTS01 carries, and it is listed as Heavy Duty, Grade 1. The RTS01 is non-handed and covers single or double acting openings on aluminum door and frame preps. Where the two differ in ordering is how you set closing force: the RTS01 is bought by spring size, from BFE and BFI barrier free light opening force through SZ2, SZ3 and SZ4.
7) My opening is offset hung, not center hung - what overhead concealed closer should I use instead of the RTS01?
The RTS01 package is built for center hung side load on aluminum door and frame, so an offset hung pivot layout is a different prep. The Norton Rixson 0608 Series is an offset hung overhead concealed closer for aluminum doors up to 200 lbs, listed as Standard Duty. Confirm the pivot arrangement on the door before ordering, because center hung and offset hung closers are not interchangeable in the same header cutout.
8) I only need to replace the closer body in an existing concealed header - is the RTS01 the right buy?
The RTS01 is ordered as a complete package for aluminum door and frame, with options including a 5mm extended spindle or the added 8563 frame cover plate. If the existing header prep stays and you only want the mechanism, CRL Jackson sells overhead concealed closer body only units: the 20-101M-01 regular duty 105 degree non hold open, the 20-101M-03 regular duty 90 degree non hold open, and the heavy duty 20-101M-09 at 105 degree non hold open. Body only units must match the existing header and spindle arrangement, so verify the original hardware before ordering one.
9) Does the RTS01 concealed closer come with a cushion stop, and what angle choices are there?
Every RTS01 build includes a cushion, ordered at either 90 degrees or 105 degrees. Pick the angle by how far the leaf can travel before it hits a sidelite, return wall, or adjacent door.
10) Can I get the Dorma RTS88 RTS01 with hold open?
Hold open is an option on the RTS01, ordered as yes or no. Keep in mind that a hold open closer is not permitted on a fire rated opening unless it releases on alarm, so for standard commercial entrances where you want the door parked open during deliveries, order the hold open version.
11) What extra parts can be added when ordering the RTS01 overhead concealed closer?
Three package choices: standard, with a 5mm extended spindle, or with the 8563 frame cover plate in aluminum finish. The extended spindle is what you want when the top rail or header condition puts the pivot point further from the closer body; the cover plate finishes the header cutout on the frame face.
12) Is this concealed closer right for a pair of doors with no center post?
Yes. The RTS01 is a center hung, double or single acting unit, so each leaf of a pair gets its own closer mounted in the header and swings independently. There is no arm crossing the opening and nothing surface mounted on the face of the door.
13) Our surface closers keep getting torn off the doors. Is a concealed closer a fix?
That is exactly what the RTS88 is aimed at. With the closer body inside the header there is nothing exposed for someone to hang on, pry, or unbolt, which is why it gets specified as a replacement on problem entrances. It also keeps the header clean where an architect does not want hardware showing.
14) I just need a replacement closer body for an existing concealed installation. Is the RTS01 that?
The RTS01 ships as a configured closer package for an aluminum center hung opening, not a bare body. If you are dropping a new mechanism into an existing header pocket, look at the CRL Jackson overhead concealed closer bodies, which are sold body only in 90 degree and 105 degree non hold open versions, including a heavy duty and an adjustable spring power model.
15) Do I need the 250 lb RTS01, or is there a lighter duty center hung concealed closer for a smaller door?
The RTS01 is specified to 250 lbs. If the leaf is lighter, the Norton Rixson 608 Series is a center hung overhead concealed closer for 200 lb doors, listed as Standard Duty, and the Rixson 700 Series is also center hung at 200 lbs capacity, Standard Duty. Weigh the leaf with glazing and rail hardware included before you drop to the 200 lb class; on the RTS01 side you can also tune effort by spring size rather than changing closer, using BFI for barrier free light opening force on interior doors or SZ4 for the strongest closing force on 3'-6" to 4'-0" interior doors.
16) Can I get one concealed closer that covers a range of door widths instead of picking a spring size up front?
The RTS01 is ordered with the closing force fixed by spring size at purchase, from BFE and BFI barrier free light opening force up to SZ4, the strongest closing force for 3'-6" to 4'-0" interior doors. If you would rather set power in the field, the CRL Jackson 20-101M-17 is an adjustable spring power overhead concealed closer body only, 105 degree non hold open, which lets you dial power after installation. That unit is a body only item, so the header prep and spindle have to already suit it.
17) I need a hold open concealed closer - does the RTS01 do that, and what else does?
Yes, the RTS01 is ordered with hold open as a yes or no option, paired with a cushion stop at either 90 or 105 degrees. Among heavy duty alternatives, the Sargent 268 is an overhead concealed closer with a cast iron body, Heavy Duty and Grade 1. Note that the CRL Jackson concealed closer bodies in the 20-101M family are non hold open units, so they are not a substitute if hold open is required.
18) The RTS01 cushions at 90 or 105 degrees - what if the door has to swing wider than that?
The RTS01 is offered with a cushion at 90 degrees or 105 degrees, which sets where the unit cushions the swing. For an opening that has to go further, the Sargent 269 is an overhead concealed closer with 180 degree opening capability, listed as Heavy Duty, Grade 1. Check wall and sidelite clearance at the wider swing before specifying it.
19) Is the Sargent 278 a drop-in substitute for the Dorma RTS01?
Not visually. The Sargent 278 is an overhead concealed closer with an exposed arm, Heavy Duty and Grade 1, meaning the arm is visible at the head of the door. The RTS01 is a fully concealed unit, chosen where surface applied units would interfere with the architectural design and as a replacement at entrances where surface applied closers are vandalized. If the reason for the concealed closer is appearance or vandal resistance, an exposed arm model changes that.
How fast can I get the Dormakaba RTS01 105 NHO SZ3 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Dormakaba RTS01 105 NHO SZ3 come with a warranty?
Absolutely. The Dormakaba RTS01 105 NHO SZ3 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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