SARGENT 2900 FIREGUARD® Electromechanical Closer Holder Instruction Manual

SARGENT 2900 FIREGUARD® Electromechanical Closer Holder

Product Information

The product is an Electromechanical Closer-Holder with the model number 2970. It is designed for use on double egress doors with a hinge side mount. The product is available for both right hand (RH) and left hand (LH) doors. It is important to note that the device must be the same hand as the door. The product requires a minimum ceiling clearance of 3-9/16. Mortise nuts are available for through bolting. The product may contain lead, which is known to the state of California to cause cancer and birth defects or other reproductive harm.

Product Usage Instructions

Install Body and Backplate Assembly

1. Use the dimensions shown on the provided template to prepare holes for installation.
2. For concealed wire applications, locate and drill a 1-1/8 diameter hole in the frame face for a 3/4 conduit. Connect the conduit to the backplate before fastening the backplate to the frame.
3. For surface wire units, use the conduit bracket attached to the backplate.
4. Attach the backplate/closer assembly to the frame, ensuring that the backplate end with the terminal strip is positioned away from the hinge of the frame.
5. Make electrical connections as described in the Typical Wiring section.
6. Make input power connections to the power supply board as directed in the Typical Wiring section.

Install Arm and Track

1. Using an appropriate size wrench, rotate the closer top spindle parallel to the door.
2. Position the closer arm on the bottom spindle with the arm length away from the hinge and oriented as shown.
3. Secure the arm with the screw and washer.
4. Remove the end cap from the track.
5. Position the track with the open side up.
6. Insert the roller end of the closer arm into the sliding groove of the track.
7. With the arm engaged in the slide groove, slide the track into position so that the prepared holes on the door align with the track holes.
8. Replace the end cap and secure the track to the door.

Final Adjustment and Regulating Procedures
Adjust the spring power according to the provided chart by turning the spring adjustment nut clockwise the required number of turns to match the door width indicated in the chart.
Please refer to the complete user manual for additional information and safety precautions.

Install Body and Backplate Assembly

1. Use dimensions shown on template provided to prepare holes.

   • For concealed wire applications:
     Locate and drill 1-1/8″ diameter hole in the frame face for 3/4″ conduit. (This is normally done at the time the frame is being installed.) Connect conduit to backplate before fastening backplate to frame. (Figure 1)

   • For surface wire units:
     Use conduit bracket attached to backplate. (Figure 2)

2. Attach backplate/closer assembly to frame. Position backplate end with terminal strip AWAY from hinge of frame. (Figure 1)

3. Make electrical connections as described in Typical Wiring section.

4. Make input power connections to power supply board as directed in Typical Wiring section.
   NOTE: If electrical connections are to be made at a later date, place cover on chassis now to prevent its loss.

Install Arm and Track

1. With appropriate size wrench, rotate closer top spindle parallel to door. (Figure 3)
   NOTE: Closing both valves for door speed and latching speed makes this procedure much easier.

2. Position closer arm on bottom spindle with arm length AWAY from hinge and oriented as shown.

3. Secure arm with screw and washer.

4. Remove end cap from track.

5. Position track with open side up.

6. Insert roller end of closer arm in sliding groove of track.

7. With arm engaged in slide groove, slide track into position so that prepared holes on door align with track holes.

8. Replace end cap and secure track to door.

Final Adjustment and Regulating Procedures

Adjust Spring Power According to Chart (Figure 4)
Turn spring adjustment nut clockwise the required number of turns to match door width as indicated in chart.

NOTE:

• Where strong drafts exist, increase spring power as needed.
• 351 Style door closers normally leave the factory with spring adjustment set at eight (8) turns.

Adjustment Instructions (Figure 5)

• Minimum recommended door closing time is 6 seconds for doors opened to 90 degrees.

• Using 1/8″ hex wrench, turn valve screw clockwise to slow down or counter clockwise to speed up door movement.

• Turn backcheck valve clockwise to increase intensity of backcheck action or counter clockwise to decrease checking (as desired).
  CAUTION: Set backcheck valve for a slight cushioning effect. It is damaging to the closer if the checking action is too abrupt.

• Backcheck should never be used as a door stop. Always use a door stop to stop the door.

Install Cover (Figure 6)

1. Assemble three (3) short cover screws (#8-32 x 5/16″) into bottom of closer body cover mounting bracket approximately one (1) turn.
2. Slide cover onto backplate and closer assembly. Secure with three (3) cover screws.
   CAUTION: Avoid interference with electronics and wires during installation of cover.

Typical Wiring

CAUTION

1. Disconnect all power before beginning installation to prevent electrical shock and equipment damage.
2. Installer must be a trained, experienced service person.
3. All wiring must comply with applicable local electrical codes, ordinances and regulations.
4. Maximum wire size is 18AWG.

2970 Stand-Alone Units (Figure 7)

1. Wire stand alone unit to appropriate power supply and fire alarm.

2. Refer to data sticker for proper input voltage and current specifications.
   WARNING: Input power supply must match circuit board voltage rating, either 24VAC/DC or 120VAC. (Refer to data sticker)

3. Energize power supply.

4. Open door to hold-open point. Door should hold open. Figure 7

5.  Depress on/off switch. Door should close and latch.

6. Adjustment of spring power may be necessary to ensure proper latching. See Final Adjustment and Regulating Procedures section.

7. Depress on/off switch again. Open door to hold open position; door will hold open.

Optional 80- Prefix Bypass Hold Open Switch for 2960, 2970 & 2990

FIREGUARD®

General Information
The 80 prefix switch allows initial hold open point to be adjustable from 20 degrees through full door opening. This adjustment is done using a cam on spindle opposite from where arm mounts.

Adjustment Instructions
IMPORTANT

1. CAUTION: Disconnect all input power beginning installation to prevent electrical shock and equipment damage.
2. Installer must be a trained, experienced service person.
3. All wiring must comply with applicable local electrical codes, ordinances and regulations.

INSTALLATION

1. Mount closer/holder per instruction sheet provided.
2. Locate switch roller and cam and loosen both set screws in cam. (Figure 8)
3. Open door to desired holding position and hold open with door stop. Rotate cam until switch roller is on lower section of cam and approximately 1/32″ from bottom of incline. (Figure 9) Cam should be positioned so when door closes, roller on switch will ride up incline of cam operating the switch. Tighten on set screw in cam with hex key and pull door closed.
4. Pull door open to desired hold open position. When switch roller travels down to bottom of incline, door closer will function as a standard multi-point holder. (Figure 10) Depending on door size and closer fall back, cam may need to be adjusted so that switch roller is positioned further from base of incline. When cam is positioned properly for desired door operation, tighten both set screws firmly.

Template

ABOUT COMPANY

• SARGENT Manufacturing Company
• 100 Sargent Drive
• New Haven, CT 06511 USA
• 800-727-5477
• www.sargentlock.com
• Founded in the early 1800s, SARGENT® is a market leader in locksets, cylinders, door closers, exit devices, electro-mechanical products and access control systems for new construction, renovation, and replacement applications. The company’s customer base includes commercial construction, institutional, and industrial markets.
• Copyright © 2005, 2008, 2021, SARGENT Manufacturing Company. All rights reserved. Reproduction in whole or in part without the express written permission of SARGENT Manufacturing Company is prohibited.

References

• P65warnings.ca.gov

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