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Closer Adjustments
Closing Controls
Latch
Closing Power
450 Models come in five different sizes (2
through 6); each power size can be increased
by 50%. Adjust as required. See Figure 1.
4450 Models are fully adjustable. For proper
sizing see Power Adjustment Chart. To adjust
closer power, see Figure 1. Increase or
decrease power as necessary.
Closing Cycle (see illustrations above).
Valve "L" controls door speed in Latch Range.
Valve "S" (optional) Delayed Action Closer only.
Controls door speed in Sweep Range.
Valve "SD" controls door speed in Sweep
Range for Standard Closer or Delay Range
for Delayed Action Closer
Use 1/8" hex-key furnished and adjust all
valves as shown in Figure 2.
Attention: Adjust closing speed to between 4 to 7
seconds from 90°. Use of door by handicapped,
elderly or small children may require greater
closing time.
Opening Cycle (see illustration above).
Valve "B" cushions (slows) door opening in the
Backcheck Range.
NOTE: Never close this valve completely or
damage to closer may occur.
Valve "P" allows "backcheck" to begin later
in the opening cycle when required.
Closing Power Control
Yale ® is a registered trademark of Yale Security Inc., an ASSA ABLOY Group company.
Copyright © 1997, 2009, Yale Security Inc., an ASSA ABLOY Group company. All rights reserved.
Reproduction in whole or in part without the express written permission of Yale Security Inc. is prohibited.
Page 5
Sweep
"S/D" (Sweep Range)
"P" (Normally shipped closed)
Figure 1
Closing Speed Controls
Delayed Action
Power Adjustment Chart
Door Size
Inches
(mm)
30
(762)
34
(863.6)
36
(914.4)
42
(1066.8)
48
(1219.2
54
(1371.6)
NOTE: Maximum of 15 turns (360°) of Power Adjustment Nut.
Closer is shipped set at lowest power setting.
Standard Closer
OR
Only
"L" (Latch)
"B" (Backcheck)-NEVER
close completely
Caution:
Do not back valves out
1/8" Hex Key
of closer or a leak will
result.
Opening Controls
Full Clockwise Turns of Closer
Power Adjustment Nut
Interior Door
Exterior Door
4
6
5
8
7
11
8
13
11
9
15
11
16
13
Delayed Action
Closer Only
"L" (Latch)
"S" (Sweep) Only supplied with
Delayed Action Feature
"S/D" (Delay Range)
"P" (Normally shipped closed)
"B" (Backcheck)-NEVER
close completely
An ASSA ABLOY Group brand
3000 Highway 74 East • Monroe, NC 28112
Tel: (800)-438-1951 • Fax: (800)-338-0965
www.yalecommercial.com
80-9344-0561-010 (06-09)
Backcheck
slower
faster
stronger
weaker
Figure 2
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