Manualshelf

IR24 PC

ManualsBrandsSystemair ManualsElectrical accessories VentilationPresence detector/IR24-PC
12
gure below.
A B C D E F
ON
0 10 30 60 300 600
OFF
10 60 300 600 1200 1800
(Values in seconds)
A
B
C
D
E
F
A
B
C
D
E
F
ON OFF
Installation
Loosen the screw and remove the cover. Carefully lift
out the electronics cassette by bending the plastic clips
outwards. Lead the cable into the bottom part. Mount
the bottom part on the ceiling. Replace the electronics
cassette and connect the cable to the corresponding
terminals (see the section Wiring on the next page).
Finally, replace the front cover.
Note: Do not touch the infrared sensor in the middle of
the electronics cassette.
Testing the function
To test the function of the detector, apply power supply
and wait for the detector to warm up (~25 sec.). The
LED will blink (long and short) during the warm-up
period. Ensure that the jumper head connectors of the
On and Off delays are placed in the “A” position (the
shortest time). Walk across the detection zones at normal
speed. The LED will be lit when the sensor detects the
motion.
Note: The LED will blink if a jumper head connector is
not properly placed.
IR24-PC
Presence detector
• Power supply 24 V AC/DC
• Intended for ceiling mounting
• 360° detection
IR24-PC is a presence detector for automatic ventilation
control of HVAC systems.
• Individually settable On and Off delays
• Change-over output
• Unobtrusive design
IR24-PC is a 360° presence detector for automatic
ventilation control of HVAC systems. It uses infrared
light. The detector has a change-over output for
activation/deactivation of a fan coil controller.
Detection pattern
Top view 360°
Side view
Mounting height (m)
2.4 3.0 3.6 4.2
Diameter coverage
6.0 7.5 9.0 10.5
On/Off delays
IR24-PC has individually settable On and Off delays. The
delays are designed to provide better energy management
of HVAC systems.
The On delay is the time given to the sensor to certify the
occupancy before it activates the fan coil controller. The
Off delay is the operating time for the fan coil after the
last detection.
The On and Off delays are set by placing the jumper
head on the corresponding pins according to the table and
6 4 2 0 2 4 6
2.4
3.0
3.6
4.2
revision
05 2007

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