Rixson 990M Electromagnetic Door Holder & Release Installation Instructions

Notes:

• 1. Do not scale drawing.
• 2. Total projection 1-7/8" (48mm). (Includes Electromagnet, Armature Assembly and Wall Cover plate.)
• 3. Non-tri voltage magnets have two non-polarized wires to be connected. Tri voltage magnets are connected using a terminal strip on back of magnet. One wire in common and one wire in the appropriate voltage terminal (non-polarized).
• 4. See Step 1 on sheet 2 for Electric Box location. Anchor Electric Box to withstand a

• minimum 50 lb. pull. Electric Box shown installed in vertical position.
• 5. Door closing mechanism should have a 3 lb. closing force at the degree of door opening where door armature and electromagnet engage.
• 6. Door hardware must not project more than 1-5/8" (48mm) on pull side of door.
• 7. Mounting of Electric Box should be reinforced to withstand shock of door opening. Failure to do so will cause box anchors to work loose.
• 8. All dimensions given in inches (mm).
• 9. See sheet 2 for more details.

990M Door Release

ASSA ABLOY RIXSON ®

www.rixson.com

1 of 2

SHEET TEMPLATE NUMBER Rev

DR100215 1

• 1. Use table to locate Single Gang Electric Box.
• 2. Determine door width (Dim "B"). Measure pivot centerline to wall (Dim. "A"). Find dimension "C" in table.

Example: Pivot centerline to wall ("A") = 10" (254mm) Door Width ("B") = 36" (914mm)

Electric Box Centerline ("C") = 33" (838mm)

3. If "A" or "B" falls between the numbers listed in table, allow for difference.

Example: Pivot centerline to wall ("A") = 7" (178mm)

Door Width ("B") = 36" (914mm)

Electric Box Centerline ("C") = 33-5/8" (854mm)

• 4. If dimensions "A" and "B" intersect in shaded area of table DO NOT INSTALL ELECTRIC BOX. The degree of door opening will not permit proper alignment between armature and wall magnet.
• 5. Height to be determined by others. Suggested height is 2' - 4' (610mm - 1219mm) from floor and/or not over 6' (1829mm).
• 6. Check degree of door opening in table and coordinate with door closers and other door hardware.
• 7. Total projection of door hardware must not project more than 1-5/8" (41mm) on pull side of door.

Location of Electric Box

	Door Width "B"
Dim. "A"	28		30		32		34		36		38		40		42		44		46		48
	"C"	Deg.	"C"	Deg.	"C"	Deg.	"C"	Deg.	"C"	Deg.	"C"	Deg.	"C"	Deg.	"C"	Deg.	"C"	Deg.	"C"	Deg.	"C"	Deg.
2	26	92°	28	92°	29-7/8	92°	32	93°	34-1/8	93°	36	92°	37-7/8	92°	40	93°	42	93°	43-7/8	92°	45-5/8	92°
4	26	97°	28	96°	29-7/8	96°	32	95°	34-1/8	95°	36	95°	37-7/8	95°	40	95°	42	95°	43-7/8	94°	45-5/8	94°
6	25-5/8	102°	27-5/8	101°	29-5/8	100°	31-3/4	99°	33-3/4	98°	35-3/4	97°	37-3/4	97°	39-7/8	97°	41-7/8	97°	43-3/4	97°	45-1/2	97°
8	25-1/8	106°	27-1/4	105°	29-1/4	104°	31-3/8	103°	33-1/2	102°	35-1/2	101°	37-3/8	101°	39-1/2	101°	41-1/2	·101°	43-3/8	100°	45-1/4	99°
10							31	105°	33	106°	35	105°	37	104°	39-1/8	104°	41-1/8	104°	43-1/8	103°	45	102°
12																			42-5/8	105°	44-1/2	104°

	Suggested Electric Boxes		Utility Conduit Boxes
Mfr.	No.	Size	Mfr.	No.	Size
Steel City	CD
Appleton	222	3" x 2" x 2-1/2" Deep	Universal	58371-1/2	4" x 2-1/8" x 2-1/2" Deep
Bowers	52	(76.2 x 50.8 x 63.5)		58371-3/4	(101.6 x 54 x 63.5)
Raco	500

A 4" (101mm) square electric box with a 3/4" (19mm) or 1" (25mm) raised cover for single devices may also be used.

990M Door Release Location Sheet www.rixson.com

ASSA ABLOY RIXSON

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DR100215 1 SHEET TEMPLATE NUMBER Rev