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Yale UniTrol UNI-50BC Series Installation Instructions page 3

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Frame Template for Reveals Over 4-5/8
Door Template on Page 2
A
3/8
(9.5)
5/16
(50.8)
(8)
7/16
(11.1)
C L
Hinge
5/16
or
(8)
Pivot
Frame Template for Flush Partitions
Door Template on Page 2
(C + 1/8)
1/2
(12.7)
C L
Hinge
or
Pivot
Installation Sequence
!
Read Front Page.
Installations and component identification are on this page.
Arm assembly must be correct for width of door, see chart.
!
Select Correct Door and Frame Template Combination.
Follow "Template Information" on Page 2 or Pages 2 and 3.
!
Mark Location of Mounting Holes.
Use dimensions for hold-open or door stop angle desired.
Mark position of 4 holes on door for closer (or drop plate) and
6 holes on frame for soffit plate (or 4 for 589L angle bracket).
!
Prepare Holes for Fasteners.
See "Preparation for Fasteners" chart on Page 2.
!
UNI51 or UNI51BF Models Only. Set approximate closing
power using "Power Adjustment Chart" at bottom of Page
2.
!
Mount Closer to Door.
Drop Plate first, if used. Place end with "S" and "L" valves
toward the lock edge of the door. If using optional cover see
"Cover" instructions at bottom of Page 4.
2-3/4
(69.9)
2
4-3/8
(111)
6191 Clamp Kit
2-1/8
(54)
589L Bracket
1-3/4
3/4
(44)
(19.1)
1-1/2
(38.1)
2-1/2
(63.5)
Left Hand Door
Reveal
Pinion Flat
"S" and "L" Valves
!
Mount Arm to Frame.
Fasten soffit plate (or 589L angle bracket if flush partition) to
frame. Mount 6190 bracket or 6191 clamps to reinforce soffit
plate.
!
Install Arm on Pinion Shaft.
Close valves "S" and "L". Rotate pinion over 45° to align main
arm letter "R" (right hand) or "L" (left hand) with pinion flat.
Fasten with arm screw. See "Typical Installation" figure above
right. Re-open valves "S" and "L".
!
Screw pinion cap onto the pinion shaft by hand or with a
Phillips screw driver - DO NOT OVER TIGHTEN. Skip this
step if optional cover is used.
!
Adjust Closer.
See "Unit Adjustment" on Page 4.
Typical Installation
"S" and "L" Valves
Right Hand Door
Pinion Flat
6190 Bracket
Soffit Plate
Main Arm
Hold-Open
"S" Valve
"L" Valve
Pinion Cap
Page 3

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