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Home My WebLink About21 Cutsheet Hollow Metal Doors Home � � � 0 Frames • MU Series multi-use � � w � � �, o � � MU Series multi-use < . •- Features and benefits �� a ' ��?• Steelcraft MU Series multi-use flush frames offer the following r*. 5.�i , �.- unique features which enhance long-term functionality and � � �� durability.Features can vary depending on the steel thickness `" — � � ";; of the frame: -a�,M � ' -•' 1. Die-mitered corner connections of the MU Series multi- ��' �.. ; -„+��;,' use flush frame corners lock together once the frame is � � �'"' � installed.The tab/lock design: � � °�'. °o a. prevents the head from rising o �, � b. keeps the head and jamb members in alignment `" � c. keeps the miter tight d. includes wedge-lock corner clips.Screws are supplied to � secure miter. o 00 s ' 2. Patented universal hinge preparations allow for easy field < n �� '" conversion from standard weight.134" (33 mm)thick �, � �'�� `� "`�'' hin es to heav wei ht 0.180" 4J mm hin es. �- ' ,,,� T : _ � b Y g ( ) b . �..._ ,_ , �,;,:, � , _ 3. Adjustable base anchors allow for installation adjustment when the floor is not level. About the produCt m Steelcraft's MU Series multi-use flush frames are designed for 4. Factory prepared for field installed silencers. G light to extra heavy duty applications in both commercial and 5. Factory applied baked-on rust-inhibiting primer in �' institutional buildings.They can be installed in both interior accordance with ANSI A250.10-2011. o and exterior locations,and in virtually all types of buildings and � wall constructions.They have a jamb profile similar to the DW frames,but are designed to be installed as part of the wall SpeClflCation ComplianCe framing sequence.They can be specified and/or supplied as 1. Overall frame construction for Steelcraft MU Series either KD(knock-down)for field assembly prior to installation, multi-use flush frames meet the requirements of AN51 o c or welded for installation as a complete unit. A250.8-2017. � � 2. Hardware preparations and reinforcements are in Q �, Installation accordance with ANSI A250.6.Locations are in accordance o � 1. Installation shall conform to the published Steelcraft with ANSI/DHI A115 unless otherwise stated. installation instructions,ANSI A250.11-2012 Recommended Erection Instructions for Steel Frames and HMMA 840. Flfe f1t111g5 2. Fire Rated Assemblies must be in accordance with NFPA MU Series multi-use flush frames meet the broadest fire rating � Pamphlet 80.The Authority Having Jurisdiction is the final requirements.They are listed for installations requiring � authority in issues related to the installation and use of compliance to both neutral pressure testing(ASTM E152 and o� installed Fire Rated Doors. UL lOB)and positive pressure standards(UL lOC).Refer to the � Fire Rated Section of this manual for particular listings. Typical wall construction and anchoring types _ Profile Steel thickness Wall construction Typical wall anchors � Q MU16 16 Gauge[0.053"(1.3 mm)] Wood or steel stud Lock-in stud anchor � MU16 16 Gauge[0.053"(1.3 mm)] Masonry Wire masonry � MU16 16 Gauge[0.053"(1.3 mm)] Existing Masonry Bolted through soffit MU14 14 Gauge[0.067"(1.7 mm)] Wood or steel stud Lock-in stud anchor MU14 14 Gauge[0.067"(1.7 mm)] Masonry Wire masonry � T O � MU14 14 Gauge[0.067"(1.7 mm)] Existing masonry Bolted through soffit a � c � n �+ � � a � m �. 0 � a � n m D n s � �o Book Rev.09/26/24 • Page Rev.ll/Ol/22 • Technical data manual • STEELCRAFT . 33 � � Home c � o ro � � � Frames • MU Series multi-use � � `o c Standard construction , o Elevation Standard Double Rabbet Frame � . ro 2" Finished Opening Width� 2" ro (50 mm) (50 mm) � > (50 mm) '/z"(13 mm) t � (40/mm) in � ---------- � � c 0 QO � 9 3�4�� Optional 14 gauge closer reinforcement � (248 mm) > Throat Varies �amb �HINGE Opening Depth � � � � � in > +� � � O � I� 5�16�� 15�16i� J J Equal � (8 mm) (49 mm) �/z"(13 mm) ! � � � I�5/e"(16 mmJ � Finished � Opening Z�� ;�Opening Width v Height (50 mm) w �HINGE STRIKE� � � Single Rabbet Frame ° � for frame depths 4 3/s"and narrower _ � � �/z"(13 mm) �9/16° ` � Equal 40 5/ie" � (1024 mm) Varies � Throat � Jamb v Opening Depth � 1� ,�Si,b„ (49 mm) (�HINGE � t Vz"(13 mm) l � 264 mam 1 � I�5/e"(16 mm; � ) N _ . 2�� Opening Width (50 mm) � Frame sizing options v � � � Maximum opening size Jamb depth availability(profile) Standard profile dimensions Corners � o (variations available) � a Series Narrow double rabbet Double rabbet Single Pair Face Stop Returns Standard Min. Max. Min. Max. 4'0"x 9'0" 8'0"x 9'0" , 3 DIE MITERED with N 3/a" 4 /s" 4��z�� Z�� Z�� 5/a" �/z�� MU16 (1219 mm x (2439 mm interlocking Soffit � 2743 mm) x 2743 mm) �83 mm) (111 mm) (114 mm) (508 mm) (51 mm) (16 mm) (13 mm) tab � 4'0"x 9'0" 8'0"x 9'0" � 3 DIE MITERED with O 3/a" 4 /s" q,�Z�� 2�� 2�� 5/s" '/z�� MU14 (1219 mm x (2439 mm interlocking Soffit v (83 mm) (111 mm) (114 mm) (508 mm) (51 mm) (16 mm) (13 mm) tab d 2743 mm) x 2743 mm) i0 � � U N � u 34 • STEELCRAFT •Technical data manual • Book Rev.09/26/24 • Page Rev.08/29/18 Q Home � � � 0 Frames • MU Series multi-use � � w � � �, o � � Standard hardware and corner conditions Universal Mortise Hinge Prep 4�/a"(124 mm)Strike Prep KD Corner Detail Optional4"(102 mm)Head � (ASA) � Detail �. a � � � � � i_ � u, ,-�-�. , i i ii �`� ,i ' � , i i i a o� i i i � �i� o \ � ` �� ` G ° , i � � � � i . o i � � O ° 4�/a"(124 mm) I`�9 ' o � o � 0o Standard 4�/a"(124mm) I�� 5"(127 mm) o Standard Optional \ r o°Q 7 Gauge Hinge Reinforcement � � � � U� 7 Q Notes 1. Variations in jamb depths available in�/a" (3 mm)increments. 2. All MU Series frames are supplied standard with masonry wire or lock-in jamb anchors and adjustable base anchors.Anchors are m designed for maximum wall/frame engagement and installation flexibility. � < 3. MU Series frames are to be installed as part of the wall framing sequence. � 0 4. Depending on environmental and usage conditions the steel can be either cold rolled or galvannealed.Galvannealed steel is � recommended for all exterior applications. 5. MU Series with 4"heads are used mainly in masonry applications when 2"face heads do not match block coursing,or in drywall applications when installed in close proximity to a F Series or MU Series frame installed with a 4"head. _ o � Frame options � � a �' Cornerconnections � � Frame profile � Series KD(Knock-down) SUA(Set-up&weld) 4"(102 mm)Heads Narrow double Single Double Single Double rabbet Double rabbet rabbet rabbet rabbet rabbet � MU16 Typically for walls � less than 3 3/a" Die-mitered for use with 2" � (95 mm)thick. Typically for walls Factory Die-Mitered,Soffit Available when specified, �i 3 3�4��(95 mm) Tab included.Corner clip and in accordance with ANSI �51 mm)face jambs.Corner h MU14 Minimum walls thickness or greater. assembly screws required. A250.8-2017. Clip assembly screws '< thickness=2" required. (51 mm) N/A-Not Available S � Q � N fD � T O � Q � C p� (� r-r r-r �p � Q � (D �. O � N 7 fl (D D n s � �o Book Rev.09/26/24 • Page Rev.10/28/22 • Technical data manual • STEELCRAFT . 35 � � Home c � o ro � � � Frames • MU Series multi-use � � `o c Standard anchoring oWire Masonry Anchor Existing Masonry Anchor Adjustable Base Anchor � . � Attached with S. ro M.screws > (furnished) I � � C O m O � � � � o � �O Maximum 3�1fi��(5 mm)dia.wire See note#6. adjustment � 1 /a"(35 mm) � � below frame � � �n > +� � "-°J Anchor for Stud Partition Anchoring and installation notes J 1. MU16 Series Multi-use flush frames are supplied standard with masonry wire,or �ock-in anchor lock-in jamb anchors and adjustable base anchors.Anchors are designed for maximum wall/frame engagement,and installation flexibility. 0 2. For anchoring options(e.g.Masonry T anchors)and applications,refer to }, ��o o "Anchoring systems"on page 84. � � 3. Installation caution notice:Grouted frames: v w • When temperature conditions necessitate an additive to be used in the mortar °o o to prevent freezing,the contractor installing the frames must coat the inside of ° frames in the filed with a corrosion resistant coating per A250.11 � o • When frames are to be grouted full,silencers must be field installed prior to � � grouting. � c � o • Steel frames,including fire rated frames,do not require grouting.Grouting is _ � not recommended for frames in drywall. 4. Installation shall conform to the published Steelcraft installation instructions, A250.11 Recommended Installation Instructions for Steel Frames. T 5. All fire rated frames must be installed in accordance with NFPA Pamphlet 80 and +, ro the Authority Having Jurisdiction. �u v 6. When using Standard Exiting Wall Anchors the anchor must be field modified a in (notched)to provide clearance for the backbend return. °1 Framing applications ro 3 � Series Steel type Building type Opening Usage frequency� Co ner 4 Corner 5 QPP��ations 2 Non-Galvannealed Z Interior Typical building conditions MU76 Institutional and Heavy to extra Galvannealed 3 Commercial Mainly heavy duty � � High humidity and/or weather Exterior exposure � � Non-Galvannealed z Interior Typical building conditions � Institutional and Extra heavy to � � MU14 Galvannealed 3 Commercial Mainly maximum duty � � High humidity and/or weather a� o Exterior exposure IL a 1 Usage frequency is based on ANSI A250.8-2017 2 Commercial quality carbon steel � 3 Reinforcements for galvannealed frames are also galvannealed c � 4 Knock-Down for field assembly prior to installation 0 5 Set-up and Welded for installation as a pre-welded unit � N d � � � U N � � 36 � STEELCRAFT •Technical data manual • Book Rev.09/26/24 • Page Rev.10/28/22 Q