Ref #WD297 Issue 2
C.P. Electronics Ltd
Brent Crescent
London
NW10 7XR
United Kingdom
Tel: + 44 (0) 333 900 0671
Fax: + 44 (0) 333 900 0674
www.cpelectronics.co.uk
enquiry@cpelectronics.co.uk
IMPORTANT NOTICE!
This device should be installed by a qualified electrician in
accordance with the latest edition of the IEE wiring regulations.
Due to our policy of continual product improvement CP Electronics reserves the right
to alter the specification of this product without prior notice.
FM 45789 EMS 534520
detection pattern
LOAD
8 Amp resistive and incandescent lighting
4 Amp fluorescent lighting
3 Amp compact fluorescent lighting
3 Amp low energy lighting
3 Amp low voltage lighting (switch primary of transformer)
3 Amp fans and ventilation equipment
Switch SON lighting loads via a contactor
SUPPLY VOLTAGE 220-240 Volts AC 50 Hz
TIME OUT PERIOD Adjustable 10s to 30m
LIGHT LEVEL Light to dark
TERMINAL CAPACITY 2.5 mm2
MATERIAL Flame retardant ABS
TYPE Class 2
TEMPERATURE -10°C to 35°C
CONFORMITY EMC-89/336/EEC
LVD-73/23/EEC
specification
description and operation
GEFL
Ceiling PIR Presence Detector
The GEFL presence detector is designed to provide automatic control of lighting, heating or ventilation
loads. It detects movement using a PIR sensor and turns the load on. When an area is no longer occupied the load will switch off after an adjustable time out period.
An adjustable internal light sensor provides additional energy saving in lighting applications. When an
area is occupied lighting is only switched on when the level of natural light is below a preset level.
When the unit is first powered up the PIR sensor will always detect immediately regardless of whether
the room is occupied.
wiring diagram
dimensions
FLUSH FIXING
1 2
3 5
Hole Ø64mm
Warning - be careful bending
springs when mounting unit.
4
mounting
The detector should be sited so that the occupants of the room fall inside the detection pattern
shown overleaf, at a recommended height of 2.8m on the ceiling. Note that the lower the sensor is
installed the smaller the detection range will be, subject to the parameters shown on the diagram.
Avoid direct sunlight entering the sensor.
Do not site within 1m of forced air heating
or ventilation.
Do not site within 1m of any lighting.
Do not fix to a vibrating surface.
Wire the product using the connector using the diagram on the front page.
Mount using one of the two options above.
To switch from more than one position simply wire two or more units in parallel.
Set the LUX level to maximum and the time to minimum.
Power the unit up—the load should come on immediately.
Vacate the room or remain very still and wait for the load to switch off (should take no more than 2
minutes).
Check that the load switches on when movement is detected.
To set the final LUX level wait until the level of natural daylight is just enough that lighting is re-
quired. Starting with the LUX control fully clockwise (at minimum), very slowly turn the control anticlockwise until the lights come on. Note that when the LUX control is at maximum then the lights
will always come on with occupancy.
Set the time required.
LOAD DOES NOT COME ON
Check to see if the live supply to the circuit is good. Strap across the L and LIVE OUT terminal to
turn the load on.
If the supply and wiring are good, check the LUX level setting. Increase the LUX level setting to
allow the controller to turn on at higher ambient natural light level.
If the detection range is smaller than expected, check the diagram above. Rotating the sensor
slightly may improve the range.
LIGHTS DO NOT GO OFF
Ensure that the area is left unoccupied for longer than the selected timer setting.
Make sure that the sensor is not adjacent to circulating air, heaters or lamps.
installation
fault finding
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