Unit Adjustment - Yale PR50 Installation Instructions Manual

Unit Adjustment

Closing Power Adjustment–
Using "Power Adjustment Chart" from Page 3, select the
correct number of turns for power adjustment shaft that
corresponds with the installation. With 1/8" hex-key provided,
rotate adjustment shaft full 360° clockwise turns to desired
setting. After closer has been installed and proper
adjustments made to the sweep and latch, it may be
necessary to readjust spring power for good closing action.
Control Valve Adjustments
(See Figure 2.)
Closing Speed Controls (Figure 1A or 1B and 2.)
Valve "S" Controls Sweep Range.
Valve "L" Controls Latch Range.
Closing Speed Controls
10°
CLOSED
Standard Closing Cycle
1A
Attention : Adjust Closing Speed Time
to between 4 to 7 seconds from 90°.
Use of the door by handicapped,
elderly or small children may require
greater closing time.
Closing Speed Controls
Slow
1/8"
DO NOT BACK VALVES OUT OF
Hex
CLOSER OR A LEAK WILL
Key
Fast
Closing Power Control
Increase
Decrease
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Copyright © 2003, 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 6
CAUTION:
DO NOT BACK VALVES OUT OF
CLOSER OR A LEAK WILL
RESULT.
70°
10°
CLOSED
Delayed Action
Closing Cycle
1B
CAUTION:
RESULT
"L"Valve
Increase
1/8"
Hex
Key
Decrease
Opening Cycle
"Backcheck" valve controls the strength of cushioning in
Backcheck Range. NEVER close this valve completely – it
is not to provide a positive stop. (see Figure 4 and Figure 5).
Figure 1.
Opening Door Control
Figure 2.
Opening Cycle
Backcheck Control
Increase
"S"Valve
1/8"
Hex
Figure 3.
Key
Decrease
CAUTION:
DO NOT BACK VALVES OUT OF
CLOSER OR A LEAK WILL
RESULT.
NEVER CLOSE VALVES
COMPLETELY - NOT
INTENDED TO PROVIDE
A POSITIVE STOP.
"BC" Valve
4
An ASSA ABLOY Group brand
3000 Highway 74 East • Monroe, NC 28112
Tel: (800)-438-1951 • Fax: (800)-338-0965
www.yalecommercial.com
Figure 4.
Figure 5.