Yale 3501 Series
Grade 1 Surface Applied Multi-Sized Door Closers
3521T-DL: Hold Open with Holder/Stop Thumbturn Arm & Delayed Action
- Adjustable through the power range of spring sizes 1 through 6, as outlined in ANSI specification A156.4
- Tri-packed (regular arm, top jamb and parallel arm mounting)
- Cast aluminum body
- Non-handed
- Staked valves
- Rack & pinion design
- 1-1/4" (32mm) diameter piston
- 5/8" (16mm) diameter pinion journals
- Separate and independent, latch, sweep and backcheck intensity valves
- 2-1/8" (54mm) projection (standard covers)
- All standard arm applications allow doors to swing 180 degrees, conditions permitting
- Shipped with full cover
- 10-year limited warranty
- The series 3000 also conforms to the minimum opening force requirements of the Americans with Disabilities Act (A.D.A) and ANSI standard A117.1 for interior doors
Yale’s 3000 Series Architectural Door Closers offer the perfect combination of reliability, appearance and durability in today’s market. With features such as staked valves, self-drilling/self-tapping screws, rack and pinion design and precise valve adjustment, and a complete range of arm and cover options, the Yale® 3000 can meet virtually any application challenge.
This U.L. listed, ANSI Grade 1 closer has a long history of proven quality. It is the ideal choice for upscale facilities that demand superior performance such as: conference centers, office buildings, courthouses, religious facilities, banks, nursing homes, restaurants, hotels and medical offices.
COMPLIANCE STANDARDS
Series 3301 and 3501 door closers are designed to comply with requirements of the Americans with Disabilities Act (A.D.A.) and ANSI standard A117.1. All series 3300/3500, 3301/3501 are ANSI/BHMA Grade 1 certified.
All Yale® series 3300/3500, 3301/3501 closers with non-hold open arms are listed by Underwriters Laboratories for labeled fire doors. This includes compliance to UL10C and UBC-72 (1997) for 3-hour assemblies. The product is manufactured in an ISO 9001 facility. These closers are also listed with the New York City Materials and Equipment Acceptance Division.
Product will be painted with a combination of waterborne acrylic and polyester powder coat. Closers will withstand 120 hours of salt spray. (The ANSI requirement is 25 hours.)
Standard Features
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Aluminum Alloy Housing
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Closer bodies are constructed of a special aluminum alloy, carefully selected to accommodate interactive steel components and operating conditions.
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Rack & Pinion Operation
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Provides a smooth constant control of the door through its full opening and closing cycle. 180° door swing can be achieved when door, frame, hardware and arm function do not interfere.
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Closer Fluid
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All door closers are supplied with a temperature stable, multi-viscosity fluid. This fluid will permit the door closer to perform within a wide temperature range from very high to as low as -40°F.
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Non-Handed
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With few exceptions all series 3301/3501 door closers are non-handed and can be installed on either right or left hand swing doors. Pinion shaft extends vertically through the closer body in both directions. This permits the closer to be positioned on either right or left hand doors for most applications.
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Sweep Speed Control Valve
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Allows adjustment of door speed from the door's full open position down to approximately 10° from the closed position.
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| Latch Speed Control Valve |
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Allows adjustment of door speed from approximately 10° down to the door’s fully closed position.
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Tri-Packed
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3301/3501 come with screws, brackets and soffit plates to allow for regular, top jamb, and parallel arm installations.
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| Adjustable Backcheck Valve |
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Provides control of the door in the opening cycle, beginning at approximately 75° of door opening. It cushions the door opening when the door is forcibly opened beyond its pre-adjusted limits. |
| Standard Molded Covers |
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Molded of high-impact U.L. listed material. Standard covers are non-handed for all applications. |
| Warranty |
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Limited ten-year warranty for defects and life of the building on the aluminum housing. |
Sex Nuts furnished standard with the Holder/Stop arm.
Sex Nuts/Sleeve Nuts (SN)
SN are available for all closers and should be used on steel doors to prevent dimpling, or where proper door reinforcement has not been provided. Standard sleeve nuts are for 1-3/4" (44mm) doors. 2-1/4" (57mm) door thicknesses are available and must be specified.
Optional Thru Bolts & Grommet Nuts (TBGN)
Through-bolts and grommet nuts (TBGN) are another fastener alternative for wood doors. Specify door thickness 1-3/4" (44mm), 1-3/8" (35mm), or 2-1/4" (57mm) when ordering.
Hold Open
Achieved by means of ball and detent/roller. Hold open is effective in a range of 85° to 110°.
Hold open arm door closers are not permitted to be used on fire door assemblies.
The thumbturn is used as an on-off selector for the hold open feature.
Holder/Stop Arm
This arm incorporates a stop at the arm’s soffit plate to dead stop the door at a predetermined degree of door swing between 85° and 110°, in 5° increments. Prior to dead stop the door closer’s backcheck feature slows the door speed to reduce the impact of the stop action.
The Holder/Stop arm is intended for use where an auxiliary door stop cannot be utilized and no more than moderate abuse is anticipated.
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Adjustable Delayed Action Closing
An optional hydraulic feature that adds a third speed range to the closing cycle. This feature becomes effective when the door is opened and released at any point beyond 70°. The amount of time delay depends upon the combination of the angle of door release and valve adjustment. The valve can be adjusted with a 1/8" (3mm) hex key from no delay time up to maximum delay times of:
Door Opened and Released at
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Approximate Time of Delay Cycle
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180°
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4-5 minutes
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120°
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2-3 minutes
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90°
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25-30 seconds
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Pressure Relief Safety Valve
The delayed action hydraulic system contains a pressure relief valve. Any time the door is forced toward the closed direction while it is in the closing cycle, the valve will open and permit the door to close. This prevents damage to door, frame and closer.
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