Gianni Industries P-MU-GS705N-30 User Manual

GS-705N Shear Lock Installation Instruction

Unbalanced air conditioning (stack pressure) can hinder door alignment and must be corrected to help insure positive locking. It
is important to note that the Shear Locks need a regulated 12V DC (or 24VDC) at the lock, and use the highest quality door closer
only. Positive centering door closers are required for all double acting door applicators to help attain consistent dead center
alignment. Also the door latching problems must be corrected prior to installation.

Specifications

Holding Force

Up to 2700 lbs (1226 Kg) in shear.

12/24 VDC selectable via jumpers +10%

Power Input

over voltage is acceptable , under voltage
will reduce holding force.

Current Draw

0.35 A@12 VDC; 0.17A@24 VDC The unit
does not require initial voltage increase to
operate.

Finish

Magnet and Armature: Zinc plated
Housing: Black powder coated

Monitoring Output

Door Gap

Operating Temper.

Magnet bond sensor output,
1 AMP@30 VDC

2mm

-30C to +50C

Connecting Diagram

12Vdc

Voltage Selection jumpers
Check jumper settings before
connecting the lock to 24 VDC
input power. Damage to the
lock may result from incorrect
jumpersettings.

24Vdc

SPDT rating

Magnet bond

sensor output

Input

Power

N.C.

COM.

N.O.

-

+

Magnet Assembly

Armature Assembly

Magnet bond sensor output

SPDT relay : 1A@30 VDC

-

Power

+

supply

Control Device
N.C. contact orAccess Relay

Locking Bolt

Keep Hole
Push-off button
Keep Hole

Armature vertical
adjustment screws

Caution:

Make sure that the "+" and "-"
wire are connected correctly.
Failure to observe polarity will
result in a short circuit and is
not covered by products
warrant.

Dimensions

Install the magnet assembly into the door
frame before installation the armature assembly
into the door leaf. The magnet assembly requires
space to run wires, as wall as space for the
recesses portion of the unit. However, make sure
that the position selected for the magnet
assembly leaves enough room on the door to
install the armature assembly.

Copyright Gianni Industries, Inc. All Rights Reserved.

PublishP-MU-GS705N-30 Ver.C :2007.07.17

6

32

3.5

GS-705N-30

30

251

267

Locking Bolt

5.9

30

Unit: mm

2-1

Flush Installation

Leading edge of door

Flat Lugs is used when the door frame is deep, and to prevent
the Electromagnetic Lock or the Armature Plate caved in, add
flat lugs to raise the plane (level) of the Electromagnetic Lock
face or theArmature Plate face to the door frame surface.

Use tapping

Screws for

wooden door

1. Make sure the gap between the door top rail and
frame header is 2mm. Make adjustments to the door
as required.

2. Adjust single acting door and door closer to insure
the door settles immediately and is fully closed .
(Adjust double acting door and POSITIVE
CENTERING DOOR CLOSER to insure the door
settles immediately and is fully closed and rest in the
dead center of the frame.

3. Locate the vertical centerline of the magnet and
armature as possible to the leading door edge.

4. Determine the horizontal centerline of the door
top rail thickness. The Armature centerline will be the
same. Mark the door per template.

5. Before determining the frame header centerline
single acting door must be fully closed. Double acting
doors must be fully closed and rest in the dead center
of the frame. Mark the frame header per the template.
Prepare the door and frame per the template.

6. Install the Shear lock and armature assembly
towards the leading edge of the door.

7. For proper operation the armature must be
adjusted upward as close as possible and parallel to
the Shear Lock without interfering with opening and
closing of the door.

8. Proper operation cannot be expected with more
than 2 mm gap between the armature and the magnet.
Use the key wrench provided to adjust the armature
vertical adjustment screws.

9 With the door closed turn the lock power on, check
the lateral alignment. The armature locking bolt
should be centered to magnet keep hole.

10. If the shear stops are too close or binding,
double check the templating and door alignment, and
make corrections as required.

11 Repeat steps 6~10 as necessary following shear
lock replacement. Cycle the door and Shear Lock
several times after the completion of the installation.

Make sure the gap between the Shear Lock and the
Armature Plate are the same while adjusting the gap.

For Vertical Installation

Change the spring which is provided
in the screw pack.

Copyright Gianni Industries, Inc. All Rights Reserved.

PublishP-MU-GS705N-30 Ver.C :2007.07.17

The Gap between the
Lock and Armature plate
is2mm

key wrench

Proper operation cannot be expected with
more than 2 mm gap between the armature
and the magnet. Use the key wrench
provided to adjust the armature vertical
adjustment screws.

2-2