Installation Instructions

Overhead Concealed Security Door Closers

Series 7970-B, & 7970-OP Non-Hold-Open Models

For wood or metal doors 1- ¾" to 2 -1/4" (45-57mm) thick hung in a hollow metal frame

standard butt hinges or offset pivots

Typical Installation

• •One track & closer position for all door opening angles
• •Easy arm attachment
• •Removable Frame Stop Required*-Not Shown

CAUTION

An incorrectly installed or improperly adjusted door closer can cause property damage or personal injury. These instructions should be followed to avoid the possibility of misapplication or misadjustment.

Template-Standard Butt Hinges

• Maximum width hinge is ⁵ inches.

24 27

609.6 685.8

Template-Offset Pivots

Non-Hold Open Overhead Concealed Security Door Closers

required for this application.

Installation Sequence

• match hand of door. • Determine hand of door from illustration on page 1. Closers are handed. Hand of closer must
• cutout in frame and door. • Using template dimensions on page 2, or 3, locate & prepare holes and

Door:

Prepare door for track. Prepare (4) holes for 1/4-20 machine screws.

Frame:

Prepare the frame for mounting closer. Drill and tap (4) holes for 1/4-20 machine screws.

Note: Generally on new construction hardware cutouts are made by suppliers at their shop.

• Mount closer to frame.

Position spring tube away from hinge or pivot and mounting plate flush with frame rabbet. Secure with mounting screws.

down with index mark aligned with pinion index mark. Install onto pinion. Secure with washer and 1/4-20 x 3/4"long flat head torx drive arm screw with red threadlock. • Install arm on closer pinion (see illustration below). Position arm counterbore facing

• Install track in door.

Place the assembled track into door cutout with open side up, cushion and block toward the hinge or pivot. Move slider to the opposite end of track (see illustration). Secure track with (4) 1/4-20 machine screws. stop

• and place end on stud. Use a screw driver to align the square on slider's stud with the arm square (see illustration to right). Push down on arm to seat stud and to prevent stud from rotating. Secure with arm screw, 1/4-20 x 3/4" long flat head torx drive with red threadlock. • Connect arm to track . Open door to approximately 5: (127mm), rotate arm to slider
• • See pages 2, 3 & 4. Determine door opening angle.
• • Set door opening angle. Open door to the angle you want the door to stop. With the door held at that location, slide cushion and block against slider. Tighten the stop position screw (large set screw) with 3/16" hex wrench (from screw pack) until secure. Release door. stop
• Adjust closer. See page 6....Install dress plate.

Assembly Components

Closer Adjustment

Series 7970-B & 7970-OP

Overhead Concealed Security Door Closers Non-Hold Open

CAUTION:

Do not back valves out of closer or a leak will result.

• • Closer Controls accessible through mounting plate for closer adustment: Use 1/8" (3mm.) hex-key for valve adjustments. Use standard screwdriver for power adjustment.
• • Power Adjustment permits increasing door closing force. Controlled by slotted screw marked "P.A."
• • Closing Speed controlled by valves marked and . 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. "SWEEP" "LATCH"
• • Delayed Action option permits door to creep from fully open to about 70°. Creeping time controlled by valve marked "DELAY".
• • Backcheck cushions or slows the opening of a door that is forced to travel faster than conditions require. Backcheck controlled by valves marked (open for backcheck start at a greater door opening angle) and (for adjusting backcheck intensity). Never close valve completely. "BC POSITION" "BC" "BC"
• • Optional Enhanced Backcheck provides adjustable backcheck intensity beginning at approximately 15° of the door opening cycle. Backcheck positioning valve is omitted when this feature is provided.
• Install Dress Plates (see page 5).