Ingersoll-Rand LCN 7940-8770 User Manual
Page 3
75.5255.02 XXXXXXXX
7940-8770 LCN
Page 2 of 11
SAFETY
PRECAUTIONS
MECHANICAL
INSTALLATION -
PREPARATION
MECHANICAL
INSTALLATION –
PLACEMENT OF
THE SENSOR
Wall Switch
Wall Switch
Presence Sensor
20” min
20” min
Presence Sensor
•
Shut off all power going to the header before attempting any wiring procedures.
•
Maintain a clean & safe environment when working in public areas.
•
Constantly be aware of pedestrian traffic around the door area.
•
Always stop pedestrian traffic through the doorway when performing testing that may result in unexpected
reactions by the door.
•
Always check placement of all wiring and components before powering up to insure that moving door
parts will not catch any wires and cause damage to equipment.
To prepare the Presence Sensor for mounting to the header, perform the following:
a)
Remove both end caps from the Presence Sensor (picture 1). Each is attached by one Phillips head screw.
b)
Remove both lenses from Presence Sensor by simply sliding them out at each end, as shown above in
picture 2.
c)
Remove the center eye shield as shown in picture 3 (take care not to damage the light tube on the inner
side of the shield). Simply pull out from the top end and rotate out as shown below.
d)
Slide the PCB out of the extrusion and set it aside as shown above in picture 4.
Remember these guidelines when installing a Presence Sensor:
The Presence Sensor should be mounted at a height range of 6’ 6” to 8’. Maximum mounting height is 9’.
The Presence Sensor should be mounted above the door on the swing side.
The Presence Sensor shall be mounted flush with the bottom of the automatic door header. This is absolutely
necessary to allow the detection pattern to reach back through the threshold area when the Presence Sensor
is in the open door position.
For
single door applications, the Presence Sensor should be mounted at the center of the door opening.
However, if this is not possible, the unit may be installed off-center. In such cases, pattern location will have to
be altered for proper placement of the field of detection. Try to avoid mounting locations that may pose
potential problems such as directly over a door arm.
For
double-egress applications, one Presence Sensor
should be mounted over each swing-path. There should
be at least 40” of separation between the 2 Presence
Sensors when measured between the centerline of each
sensor.
If the Presence Sensor is the only sensor being used for
safety at the swing side of the door, to be in compliance
with ANSI 156.10, a lockout safety beam or door
mounted safety side (DMSS) is needed in addition to the
Presence Sensor.
For all applications, refer to the pattern charts for
width and depth in the applicable section of this
Guide. Patterns shall be adjusted to achieve
maximum detection zones, and shall be in
compliance with all applicable safety standards (i.e.
ANSI A156.10).
1
2
3
4
An optional BodyMount
3” Standoff may be used
during sensor installation