Elkay 374B-1 Manual

The Ceiling Mount PIR Timer (3 wire)
is part of the Elkay family of switches,
timers and detectors which save
energy and increase convenience in
and around your home, garden
or premises.
Rating at 240V ac 50Hz
• All load types 10A
• Time Delay: 2min - 1 hour
• Sensitivity adjustment / Test mode
• Auto and manual Lux Sensor for
daylight control
• Surface and ush mounted options
• Interchangeable white / chrome fascias
Usage
The PIR sensor has been designed to switch
lighting, heating and ventilation loads up
to 10A. The unit is switched on by the
detection of moving infra red heat within
a specied range. When infra red heat, such
as a moving body, is no longer detected,
the unit will switch o the load after the
adjustable time period has elapsed.
If infra red heat is detected again during the
timing period, the timing sequence will
restart. The unit has a lux level adjustment
and Auto Lux function, which measures
the ambient light levels and prevents lighting
being switched on, when there is sucient
lighting in the room. There is sensitivity
adjustment and test mode function added
for your convenience.
IMPORTANT a power factor correction
capacitor of 4 microfarads may be
required when switching low wattage
loads, e.g. LED loads. the capacitor is tted
across switch live and neutral supplies of
suitable Elkay capacitors can be found at
your stockist (ref. pfcc-1). Do not insulation
resistance test this product. Remove before
testing or test circuit prior to tting.
–
CEILING MOUNT
PIR TIMER
374B-1
3 wire
Instruction Guide
BROOK DESIGN HARDWARE LTD
BDH
BDH
BROOK DESIGN
HARDWARE LTD
BDHBROOK DESIGN
HARDWARE LTD
BDH
BROOK DESIGN
HARDWARE LTD
BDH

DIL
SWITCHES
7-10 metres approx
2.4 metres
7-10 metres approx
.
CEILING
FLOOR
LIVE IN
LIVE OUT
NEUTRAL
DIL
SWITCHES
SENSITIVITY
ADJUSTMENT
LUX LEVEL
ADJUSTMENT
LIVE IN
LIVE OUT
NEUTRAL
DIL
SWITCHES
SENSITIVITY
ADJUSTMENT
LUX LEVEL
ADJUSTMENT
2.4 metres
7-10 metres approx
7-10 metres approx
.
7-10 metres approx
CEILIN
G
FLOOR
DI
DI
L
L
SWITCHES
SWITCHES
SENSITIVIT
SENSITIVIT
Y
ADJUSTMENT
ADJUSTMENT
LUX LEVE
LUX LEVE
L
ADJUSTMENT
ADJUSTMENT
LIVE IN
LIVE OU
T
NEUTRAL
Positioning
CAREFUL POSITIONING IS ESSENTIAL TO
OBTAIN OPTIMUM PERFORMANCE.
Use the detection range to determine a
suitable location for the sensor. When
locating the position of the units, ensure
the sensor is not subjected to bright or
direct sunlight or in areas with high
re ective surfaces. Do not site units on a
vibrating surface, or near forced air
Diagram 3
Please note: The black bar denotes the
position of the dip switch. Dip switch
4 is only used for Setting Automatic
(150 Lux) or Manual Lux ONLY.
Diagram 2
Diagram 2
heating and ventilation. They should not
be placed within 1 metre of the load.
Sensors work when objects move across
their  eld of view. Position the sensor
where people will be detected walking
across the zones rather than towards the
zones identi ed in Diagram 1. Adjust
sensitivity to suit the area that the sensor
has been installed in.
2INSTRUCTION GUIDE
|
CEILING MOUNT PIR TIMER – 3 WIRE
Auto Lux Manual Lux Test Mode 2 mins 5 mins 10 mins 15 mins 20 mins 30 mins 60mins
10 secs
ON DIP
4
3
2
1
ON DIP
4
3
2
1
ON DIP
4
3
2
1
ON DIP
4
3
2
1
ON DIP
4
3
2
1
ON DIP
4
3
2
1
ON DIP
4
3
2
1
ON DIP
4
3
2
1
ON DIP
4
3
2
1
ON DIP
4
3
2
1
Diagram 4
Time Settings (Test Mode to 60 mins).
LIVE IN
LIVE OUT
NEUTRAL
Wiring diagram for a single unit. Wiring diagram for a single unit.
DIL
SWITCHES
7-10 metres approx
2.4 metres
7-10 metres approx
.
CEILING
FLOOR
Diagram 1
Removing the Sensor from
Surface Mount Box.
Squeeze
the housing
on either side as shown here.

Installation Steps
IT IS ESSENTIAL THAT YOU FOLLOW
CLOSELY STEPS 1 TO 8 OF THE MOUNTING
AND INSTALLATION INSTRUCTIONS
BELOW. FAILURE TO DO SO WILL
INVALIDATE THE WARRANTY.
Step 1
Please ensure that you position the PIR in
the correct place by reading the Positioning
section of these instructions. For ush
mounting cut a clean hole measuring
64mm in diameter in the chosen area for
the sensor. For surface mounting attach
surface mount cup to ceiling with
connection cable hanging through the
middle. Seal any large holes on ceiling to
prevent air current activation.
Step 2
Ensure that the mains power to the circuit
is switched o. Ensure terminal cover
and cable clamp are correctly tted with
screws supplied. Place the Live In into the
Terminal marked Live In and the switched
Live Out into the Live Out terminal.
Place the neutral into the connection
marked N for neutral. Please note that it is
essential that the Live In wire and the
switch Live Out and Neutral are identied
prior to commencing installation.
To connect multiple units connect the live
switch live and neutrals as shown in
Diagram 2. Turn o mains supply for
installation as live working is not
recommended and can damage the unit.
Step 3
For ush mounting fold the two arms up
into the vertical position and insert unit
into the hole. Release unit ensuring arms
are securely in place. For surface mounting
t surface mount cup onto ceiling or
conduit terminal box and return connected
PIR into surface mount cup.
Step 4
Remove the fascia by turning anti-clockwise
to show the lux pot, sensitivity pot and
the timing/lux Dip switches. Please adjust
the Lux Level and Sensitivity potentiometer
gently without force as this is a sensitive
electronic part. After adjustment please
wait 30 seconds for changes to take eect.
It is recommend product is set up initially
using the 10 secs walk test mode.
Step 5
To set Auto Lux (150 Lux), switch Dip switch 4
to the ON position. This will allow activation
of the PIR from Dusk until Dawn only.
To set manually then put dip switch 4 o
and use the potentiometer to adjust to
desired lux level setting. All the way to the
plus setting will allow the PIR to switch
day and night. All the way to the minus sets
the timer to ZERO lux and eectively
switches o the PIR. To set manually you
will need to be present at dusk
(See Diagram 3).
Step 6
To adjust sensitivity turn anti-clockwise
to the High (H) setting to increase
sensitivity and clockwise to the Low (L) to
decrease sensitivity.
Step 7
To set time please utilise the dip switch
timing diagram above. The black bar
denotes dip switch position. Replace fascia
ring by turning anti clockwise
(See Diagram 4).
Continued overleaf...
3
INSTRUCTION GUIDE
|
CEILING MOUNT PIR TIMER – 3 WIRE

Brook House,
Dunmurry Industrial Estate,
Dunmurry,
Belfast BT17 9HU
T [phone]
F [phone]
E [e-mail] elkay.co.uk
BROOK DESIGN HARDWARE LTD
BDH
B
DH
BROOK DESIGN
HARDWARE LTD
BDHBROOK DESIGN
HARDWARE LTD
BDH
BROOK DESIGN
HARDWARE LTD
BDH
Problem Resolution
Lights will not
switch OFF
• Check terminal connections.
• Check time settings (See Diagram 4).
• PIR is too close to load – Re-position away from lighting, heating and forced air ventilation.
• PIR is switching low wattage or LED loads – Fit Capacitor as stated in instructions PFCC-1.
• Windy weather conditions – Adjust Sensitivity down.
• PIR is re triggered – Check area is left unoccupied for longer that time setting using an accurate time piece.
• Sensitivity set too high – Gradual incremental adjustments towards the low setting to resolve the issue.
Lights will not
switch ON
• Check Terminal connections.
• Lux set too low – Turn o Auto Lux and turn UP lux level to the PLUS (+) setting and wait for
sensor to adjust.
• Sensitivity set too low – Gradual incremental increases towards the High setting to resolve the issue.
Light switches
OFF then
immediately
comes back ON
• Check terminal connections.
• PIR is detecting normally- Find source that is triggering PIR.
• PIR is seeing infra red heat from the load- Re-position away from heat source (See Positioning).
• PIR is switching low wattage or LED loads- Fit Capacitor PFCC-1 across switch live and
neutral of load.
• PIR is switching a contactor and the contactor chatters or stays ON - Fit a PFCC-1 capacitor
across the switch live and neutral of the contactor coil.
Troubleshooting
Step 8
The PIR will take approximately 1 minute
to initialise and will ash rapidly after
the mains power is rst applied to allow
the sensor to learn its environment.
The load will be ON after 7 seconds
initially, then switch o after 1 minute if
there is no detection in the zones.
Operation of the Unit
• In standard operation the PIR will now
sense infra red heat when a person
or source of heat passes through
the detection zone. Each time the PIR is
triggered it will reset the timer back
to the start of the timing period. The unit
will then wait 5 seconds before allowing
the PIR to sense and re trigger the
timing period again.
• If no one is present in the room or the
detection zone is not passed through,
during its set time period, the timer
will time out, turning o the lights
or appliance.
• The PIR unit will only trigger the
lights or appliance if the ambient light
level is below that set on the lux
level adjustment.
Technical Helpline
For further help or assistance or information on this or other products in the range
please call the Elkay Technical team on [phone]. Please call the
Technical helpline before returning any products to your stockist. These instructions
are available in other languages. Please refer to our website www.elkay.co.uk
Instrukcje są również dostępne w innych językach. Prosimy o zapoznanie się z naszą
stroną internetową www.elkay.co.uk lub www.elkaypolska.pl
Important Notice
All wiring should be carried out by a competent
person or a qualied electrician and should be
tted to current IEE wiring regulations BS 7671.
The circuit should be isolated before carrying out
any work. Failure to adhere to the instructions
will invalidate the warranty.
Elkay (Europe), 51C Milicka, Trzebnica, 55-100, Poland