Schlage GF3000 SERIES INSTALLATION MANUAL

Preparing the Frame and Door

Accurate preparation is critical for proper operation.

1) Establish Frame and Door Centerlines (Standard and TRD)

For proper operation, it's critical to establish centerlines of magnet and armature assembly that line up to form a vertical axis. The figure below shows the centerline scheme for a standard GF3000 and a GF3000TRD. Note that centerlines for magnet (M1 and M2) are directly above centerlines for armature assembly (A1 and A2) thus forming a vertical axis (AM).

Diagram Description: Shows a frame and door edge. Dashed lines indicate centerlines for magnet (M1, M2) and armature (A1, A2), forming a vertical axis (AM). Includes views labeled 'VIEW A' and 'VIEW C' indicating measurement directions.

Check door & frame for any structural member or hardware component that might interfere with magnet and armature mounting areas before selecting template location. Remove existing hung doors for template application and armature installation.

The standard model GF3000 can be installed in a horizontal or vertical configuration. To achieve maximum resistance to forced entry, position as follows:

• Horizontal configuration: position unit closest to the latch side of door.
• Vertical configuration: positioning unit closest to the strike plate is recommended.

In some applications, the door and frame may require reinforcement.

1) Establish Frame and Door Centerlines (BRD)

For proper operation, it's critical to establish centerlines of the magnet and armature assembly that line up to form a vertical axis. The figure below shows the centerline scheme for a GF3000BRD. Note that centerlines for magnet (M1 and M2) are directly below centerlines for armature (A1 and A2) thus forming a vertical axis (AM).

Diagram Description: Shows a frame and a bottom door rail. Dashed lines indicate centerlines for magnet (M1, M2) and armature (A1, A2), forming a vertical axis (AM). Includes views labeled 'VIEW A' and 'VIEW C' indicating measurement directions.

To achieve maximum resistance to forced entry, position unit closest to latch side of door. Adjusting screw must be accessible with a long bladed screwdriver when door is hung. Check both door & frame for any structural member or hardware component that might interfere with magnet and armature mounting areas before selecting template location. Existing hung doors will normally have to be removed for template application and armature installation. In some applications, the door and frame may require reinforcement.

Installing the Lock - Standard, TRD, TJ, SM, SC, SC-HD

1) Mounting Tabs (Standard, TRD, SC, SC-HD)

Secure two mounting tabs (a) to ends of lock cutout in frame. Mounting tabs can be installed upside-down (b) so that they may be used with 16 gage hollow metal or 1/8” thick aluminum frames.

Diagram Description: Shows two diagrams illustrating the attachment of mounting tabs (a) to a frame. The second diagram shows the tabs (a) installed upside-down (b).

2) Surface Mount Armature Housing Sex Nut Hole Sizes (TJ, SM, SC, SC-HD)

Door Types:

• A = Hollow Metal
• B = Reinforced
• C = Solid Wood

Hole Sizes and Parts:

• a = sex nut
• b = 1/2" hole
• c = 1/4" hole
• d = mounting spacer
• e = armature
• f = 1/4-20 x 2 screw
• g = inside of door
• h = 1/4-20 threaded hole (thru reinforced side of door only)

Diagram Description: Three diagrams (A, B, C) illustrate the armature housing installation for different door types. Diagram A shows a hollow metal door with a sex nut (a) and 1/2" hole (b). Diagram B shows a reinforced door with a 1/4" hole (c) and a 1/4-20 threaded hole (h). Diagram C shows a solid wood door with a 1/4" hole (c). All diagrams show the armature (e) and mounting spacer (d) with screw (f).

3) Frame Prep (Standard and TRD)

The frame prep is the same for the Standard and the TRD models. The door prep for the standard model has many options depending on the depth of the channel. The TRD model has a specific prep of its own. The lock should be located as close the strike side as possible while still allowing room for the mounting tabs and screws.

Frame Prep - Hollow Metal or Aluminum

Diagram Description: Technical drawing showing frame preparation for hollow metal or aluminum. Includes dimensions for mounting tab locations (M1, AM), overall length, and hole sizes/types (e.g., 3/8", R 1/4", Ø.203" THRU-C'SINK).

Frame Prep - Wood

Diagram Description: Technical drawing showing frame preparation for wood. Includes dimensions for mounting holes and overall width/depth.

4) Door Prep (Standard and TRD)

DOOR PREP - Hollow Metal or Aluminum

Diagram Description: Shows three variations of door preparation for hollow metal or aluminum doors. Each diagram illustrates a cross-section of the door edge and the required cutouts and holes with specific depth and dimension requirements (e.g., flush to 1/4", 1/4" to 1", 1/4" to 1-3/4", 1-3/4" to 2-1/2"). Includes centerline markings (A1, A2) and screw hole details.

DOOR PREP - Wood

Diagram Description: Shows door preparation for wood doors. Illustrates a cross-section of the door edge with required cutouts and holes, including dimensions and screw hole details (e.g., Ø5/8" TYP(2)).

DOOR PREP - TRD

Diagram Description: Shows door preparation for TRD models in hollow metal or aluminum where top adjustment is not accessible. Illustrates a cross-section of the door edge with required cutouts, holes, and an adjustment screw access detail. Includes dimensions and screw hole details.

5) Template information (TJ)

All dimensions in inches.

Diagram Description: Shows a template layout with dimensions from the bottom of the frame face and the edge of the door for left and right-hand doors. Indicates hole 'a' and its dependency on door type and mounting style. Also includes detailed diagrams for Left Hand Reverse and Right Hand Reverse configurations, showing frame and door edge dimensions and hole placements.

6) Frame & Door Prep (SC)

Diagram Description: Technical drawing showing frame and door preparation for the SC model. Includes cross-sections and top views with detailed dimensions for cutouts and mounting holes.

7) Frame & Door Prep (SC-HD)

Diagram Description: Technical drawing showing frame and door preparation for the SC-HD model, specifically for glass doors. Includes cross-sections and top views with detailed dimensions for cutouts, mounting holes, and shim requirements for different glass thicknesses.

Mounting the Lock - Standard, TRD, TJ, SM, SC, SC-HD

After the door and frame have been prepared, follow these steps:

1) Install Armature Mounting Spacer

Using two, 1/4 x 20 screws, secure mounting spacer (b) and armature housing (c) onto door. Use through-holes (a).

Diagram Description: Shows the armature housing (c) and mounting spacer (b) being attached to a door edge using screws through holes (a).

2) Install Faceplate

Install faceplate (a) into magnet housing. Tighten set screws (b).

Diagram Description: Shows a faceplate (a) being inserted into a magnet housing and secured with set screws (b).

3) Attach Magnet Housing to Frame

Carefully feed wires through access hole (a) in magnet housing (b). Using either two, 10 x 3/4 sheet metal screws or two, 10 x 1/2 machine screws (c), loosely attach magnet housing to frame. DO NOT COMPLETELY TIGHTEN AT THIS TIME.

Diagram Description: Shows the magnet housing (b) being attached to a frame with screws (c), with wires being fed through hole (a).

4) Install Magnet

Make final wiring connections (see Wiring Diagram on page 21). Insert GF3000 magnet (a) into magnet housing. Using four, 10-24 x 1/2 screws (b), secure mounting spacer and armature housing onto door.

Diagram Description: Shows the magnet (a) being inserted into the magnet housing and secured with screws (b).

Installing the Lock - BRD

1) Preparing the Floor for the GF3000BRD Magnet

The GF3000BRD magnet is installed in the floor below the bottom rail of the door. This requires a threshold box inset into a floor pocket (a) and a trench (b) for the electrical conduit.

NOTE: Retrofit Installations - Conditions may vary. If hard material is encountered, a pavement breaker or demolition hammer may be useful for chiseling out the pocket and trench.

Create a pocket at least 2.375" wide x 7.5" long in the threshold area, centered below the door's bottom rail and away from hinges. The depth (d) of the pocket may vary; distance (e) is from the top of the threshold box to the underside of the threshold plate.

IMPORTANT Considerations for metal box position:

• Magnet must not protrude above the threshold when installed.
• Use box's shim washers to raise/lower magnet to proper level.
• Box centerline (f) must be placed on the door's centerline.

The conduit trench should be at least 1/2" wide and deep enough for the conduit, leading to the 7/8" hole in the box end.

Diagram Description: Shows a top-down view and a side view of the floor preparation for the GF3000BRD magnet. It illustrates the pocket (a), trench (b), threshold plate (c), pocket depth (d), distance (e), and box centerline (f). Dimensions like 2.375" minimum and .5" minimum are indicated.

2) Installing the GF3000BRD Threshold Box

After the pocket and trench are created:

• Feed 1/2" conduit into either 7/8" diameter hole in the threshold box.
• Secure conduit with nut.
• Position box in pocket and conduit in trench.
• Pour concrete around threshold box and conduit and allow to cure.

3) Preparing the Door for the Armature

Diagram Description: Shows the bottom rail of a door with dimensions for drilling and tapping holes for the armature mounting bracket assembly. Includes measurements like 1-3/4" min, 2-7/8" min, 3-7/8" max, 1-3/8" min, 1-9/16", and 3-1/8". Also indicates the location for #10-24 Pan HD screws.

4) Mounting the GF3000BRD Armature in the Door's Bottom Rail

Mount armature mounting bracket assembly (a) to the bottom rail using #10-24 x 3/4" Pan head screws (b). Mount armature assembly (c) to the armature mounting bracket assembly (a). Remove the end cap on the door to expose the adjusting screw (d). If the door lacks a removable end cap, drill an access hole in the edge of the door according to the approximate dimensions shown.

Diagram Description: Shows the bottom rail of a door with the armature mounting bracket assembly (a) attached, and the armature assembly (c) mounted to it. The adjusting screw (d) is visible. Dimensions for the approximate access hole are provided (e.g., 1-1/4" approx., Min. 1" / Max. 2").

5) Mounting the GF3000BRD Magnet Into the Threshold Box

Mount magnet (a) to box (b) by placing two speed nuts (c) per slot, side by side in the flanges of the box. Line up magnet over speed nuts. Insert #10-24 x 1/2" flat head screws (d) into magnet brackets and through speed nuts. Align magnet, ensuring centerlines of armature are on the centerlines of magnet. Tighten screws.

If needed, add shims under magnet to bring magnet flush with the top of the threshold. NOTE: Top surface of magnet must not protrude above top surface of threshold.

Replace door on hinges. Adjust armature, using the adjusting screw in the access hole, to achieve a clearance gap of approximately 1/16" between magnet face and armature. Re-adjust the gap if necessary for proper locking action and spring return when the magnet is de-energized.

If the door's bottom rail depth is greater than 1-3/4", spacers (e) may be needed (one, 1/8" thick spacer is supplied).

Install door status switch into frame and actuating magnet into door (see Door Status Monitor (DSM) - GF3000BRD on page 23).

After all magnet adjustments are complete, it is strongly recommended to fill the magnet box with spray urethane foam insulation to keep water out.

Make final wiring connections (see Wiring Diagram on page 22).

NOTE: Mount Control Module (f) in a remote and dry location, no more than 15 feet away from the lock.

Diagram Description: Shows a cross-section of the threshold box (b) installed in the floor, with the magnet (a) mounted inside using speed nuts (c) and screws (d). Shims (e) are indicated for height adjustment. The control module (f) is shown mounted remotely. A 1/2 ref dimension is noted.

Wiring the Lock

Wiring the Lock - Standard, TRD, TJ, SM, SC, SC-HD

1) Wiring Diagram:

Diagram Description: Illustrates the wiring connections for the GF3000 series locks. It shows connections for the CONTROL MODULE, POWER INPUT (12 or 24VDC), OPTIONAL DOOR STATUS MONITOR (WHITE COM, GREEN N.O., RED N.C.), and OPTIONAL MAGNETIC BOND SENSOR (BROWN COM, BLUE N.C., GREEN N.O.). An ADJUSTABLE TIME DELAY unit is also depicted. A critical instruction states: IMPORTANT: DO NOT CUT YELLOW WIRE.

2) Standard Features:

• Operating Voltage: The GF3000 operates on filtered and regulated 12 or 24 volts DC with automatic voltage selection.
• Automatic Relock Switch (ARS): A built-in switch requires the door to be closed before the magnet can be energized.
• Adjustable Time Delay (ATD): Provides a relock delay adjustable from 1 to 30 seconds. Factory preset is 3 seconds.

3) To Adjust Relock Time Delay:

1. Refer to the wiring diagram and note the ATD location. IMPORTANT: Do not cut yellow wire.
2. With the door open, apply power.
3. Remove the 5/64" hex head screw to access the recessed momentary pushbutton switch.
4. Using the provided hex wrench, depress and release the switch once for each second of delay required (max 30 seconds, min 2 seconds). Example: To set ATD to 5 seconds, depress the switch 5 times.

NOTE: If a mistake is made, wait 10 seconds, then repeat Step #4.

5. Reinstall the hex head screw after setting the desired relock time delay.
6. Close the door and verify the delay.

Wiring the Lock - BRD

1) Wiring Diagram:

Diagram Description: Illustrates the wiring connections for the GF3000BRD. It shows connections for the Automatic Relock Switch (ARS) with WHT, BLK, VIO, ORG/WHT, and RED wires. The CONTROL MODULE is connected to POWER INPUT (12/24VDC) via RED(+) and BLK(-). Optional MBS OUTPUT is shown with BLU (N.C.), BRN (COM), and GRN (N.O.). A COIL is connected. An instruction states: IMPORTANT: DO NOT CUT YELLOW WIRE. A note indicates adding cable as needed to mount the control module in a dry location.

2) Standard Features:

• Operating Voltage: The GF3000BRD operates on filtered and regulated 12 or 24 volts DC with automatic voltage selection.
• Automatic Relock Switch (ARS): A built-in switch requires the door to be closed before the magnet can be energized.
• Adjustable Time Delay (ATD): Provides a relock delay adjustable from 1 to 30 seconds. Factory preset is 3 seconds.

3) To Adjust Relock Time Delay:

1. Verify that the exposed white-to-black wire on the ARS is not shorting against anything.
2. With door open, apply power.
3. Touch the violet wire to the black ARS wire one time for each second of delay required (maximum = 30 seconds, minimum = 2 seconds). Example: To set ATD to 5 seconds, touch the violet wire to the black ARS wire 5 times.

NOTE: If a mistake is made, wait 10 seconds, then repeat Step #4.

NOTE: A pushbutton switch may be used if desired.

4. Properly insulate the violet wire after setting desired relock time delay.
5. Close door and verify delay.
6. If OK, permanently connect and insulate the white-to-black wires on the ARS.

Door Status Monitor (DSM) - GF3000BRD

Diagram Description: Shows the placement of the magnet and switch for the DSM on a door and frame. Dimensions are provided for the magnet (a, b) and switch hole (1" diameter in frame). 'a' is for wood/aluminum doors (3/8" diameter hole), 'b' is for hollow metal doors (1" diameter hole). BLK (COM), RED (N.C.), and WHT (N.O.) wires are shown for the switch.

Installation Details:

• Hole for switch: 1" diameter in frame.
• Hole for magnet: (a) Wood or Aluminum doors - 3/8" diameter; (b) Hollow metal doors - 1" diameter.
• Installation of magnet and switch must be concentric (common centerline).
• Switch insertion: snap-in fit.
• Magnet insertion: Wood or aluminum doors - press-in fit; Hollow metal doors - snap-in fit.
• If necessary, use epoxy.
• Contact Type: Single Pole/Double Throw (SPDT)
• Contact Rating: 28VDC @ 300 mA (max)
• With door closed, no more than 1/2" air gap is allowed between switch and magnet.

Air Gap Adjustment

1) Set Armature Height

Using the provided 7/32 hex wrench, raise or lower the armature as needed. Clearance between magnet and armature must be less than 1/4".

Diagram Description: Shows an armature assembly with a hex wrench being used to adjust its height.

Options

1) Optional Monitoring Outputs

Door Status Monitor (DSM)

The optional DSM provides a dry set of contacts for monitoring “door open" or “door closed" conditions.

Diagram Description: Two wiring diagrams show the DSM contacts. 'Door Open' shows WHT (C), RED (N.C.), GRN (N.O.). 'Door Closed' shows the same configuration.

Magnetic Bond Sensor (MBS)

The optional MBS provides a dry set of contacts for monitoring “door locked" or “door unlocked" conditions. The MBS measures the magnetic holding force between the armature and the magnetic coil. Poor magnetic bond can result from low voltage, foreign material between surfaces, or improper alignment.

Diagram Description: Two wiring diagrams show the MBS contacts. 'Poor Magnetic Bond' shows BRN (C), BLU (N.C.), GRN (N.O.). 'Good Magnetic Bond' shows the same configuration.