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  Norton Door Control   Norton Series 7900 Overhead Concealed Closer  

Norton Series 7900 Overhead Concealed Closer - Page 8

   

Norton Series 7900 Overhead Concealed Closer

A member of the Yale Security Group

7900 INSTALLATION

3/4" Offset Pivot Installation

Non-Hold-Open

DEGREE OF DOOR OPENING 85° TO 95°
LENGTH OF SLIDE TRACK[1]

FOR MINIMUM DOOR WIDTH OF

 25(0.64M)

31(0.79M)

 23(0.58M)

29(0.74M)
TEMPLATE POSITION OF SLIDE TRACK[2] "G" 3-7/8(98)

Hold-Open

HOLD-OPEN POINT 85° TO 95°
LENGTH OF SLIDE TRACK[1]

FOR MINIMUM DOOR WIDTH OF

 25(0.64M)

31(0.79M)

 24(0.61 M)

30(0.76M)
TEMPLATE POSITION OF SLIDE TRACK[2] "G" 3- 7/8 (0.98M)

Center Pivot Installation

Non-Hold-Open

DEGREE OF DOOR OPENING 85° TO 95°[4]
LENGTH OF SLIDE TRACK[1]

FOR MINIMUM DOOR WIDTH OF

 25(0.64M)

31(0.79M)

 24(0.76 M)

30(0.79M)
TEMPLATE POSITION OF SLIDE TRACK[2] "G" 5- 3/8 (137)

Hold-Open

DEGREE OF DOOR OPENING 85° - 100°
LENGTH OF SLIDE TRACK[1]

FOR MINIMUM DOOR WIDTH OF

 25(0.64M)

34(0.86M)

 23(0.58 M)

32(0.81M)
TEMPLATE POSITION OF SLIDE TRACK[2] "G" 5- 3/8 (137)

[1] All Series 7900 Closers are shipped with a slide treack 25" (635mm) long. For narrower doors a shorter length slide track is required, the track can be cut to the desired length at the time of installation. This provides application versatility and assures the proper length track.

[2] The template position for the slide track must always be measured from the centerline of the door's pivot point.

[3] An auxiliary door stop is required for all center pivot installations.

All dimensions are for reference only. Dimensions in parentheses are millimeters unless noted otherwise. Door sizing information is based on installation on standard weight doors. 7'0" (2.13m) high, 1-3/4: (44mm) thick, hung on pivots and operating under normal conditions.

For more information contact your Norton Representative, P.O. Box 25288, Charlotte, NC 28229-8010. Telephones: (800) 438-1951. In North Carolina: (704) 283-2101. FAX: (704) 289-2875. Telex: 572356. In Canada, 3160 Orlando Drive, Mississauga, Ontario, Canada L4V 1R5. Telephone: (416) 672-6220. FAX: (416) 672-9022. WATS: (800) 461-3007.



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