C-TEC 800 Series User manual

Accessible Toilet Alarm
N C 9 5 1 • D E S I G N & I N S T A L L A T I O N G U I D E
Approved Document No.: DNU0951001 Rev 5 • Page 1 of 8
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Single Zone Emergency Assistance Alarm
+
-
1
2
3
4
Indicators will operate:
Intermittently when help is on the way
R
R
E
E
S
S
E
E
T
T
Indicators will operate:
Continuously when pull cord is activated
Intermittently when help is on the way
On Calling
Call Accept
NC951 KIT CONTENTS
NC809DBBT Accessible Toilet Reset Point c/w Sounder
Includes a ‘Reset’ button c/w braille text, red
reassurance LED and sounder.
NC807C Ceiling / Wall Pull
Includes a red reassurance LED, red pull cord
and two triangular pull bangles.
NC949 Accessible WC
Sticker
NC943B Single Zone Call Controller c/w Sounder
Includes a link selectable ‘Call Accept’/’Reset’ button,
‘Calling’ and power ‘On’ LEDs, 140mA PSU, backup
battery, volt-free relay output and sounder.
NC806CS Overdoor Light c/w Sounder
Accessory Pack
Containing device
mounting screws
and shorting link.
Documentation
A Design & Installation
Guide (this document).
This equipment must be installed and maintained by a suitably skilled and technically
competent person.
This document provides a brief design and installation overview of the NC951 accessible
toilet alarm system, based on the recommendations of BS 8300 (the code of practice for the
design of buildings and their approaches to meet the needs of disabled people).
Approved Document No.: DNU0951001 Rev 5 • Page 8 of 8
TECHNICAL SPECIFICATIONS
NC943B Single Zone Call Controller c/w Sounder
Mains supply: Voltage: 230Va.c. 50/60Hz; Max. current: 23mA.
Outputs: PSU voltage 12Vd.c. / current 140mA.
Volt-free relay contacts (NO/C/NC) rated 30Vd.c. @ 1A.
Currents: Zone current 18mA; Alarm current 23mA.
Battery backup: 500mA, rechargeable, 24 hours standby plus 15 minutes alarm run time.
Indicators: Red alarm ‘Calling’ LED; Green power ‘On’ LED (flashes green when
battery backup is active).
Sounder: Active in alarm, volume adjustable.
Controls: ‘Call Accept’ button (link selectable for accept, reset, or no function).
IP Rating (EN 60529):IP31 when correctly installed.
Mounting: Mounts on 25mm UK double gang back box (flush or surface).
Dimensions: 147 x 87 x 39mm (W x H x D).
Weight: 300g
Operating Temp.: -5oC to +40oC; Max. relative humidity (RH) 95% non-condensing.
NC807C Ceiling / Wall Pull Unit
Input: Voltage: 12Vd.c.; Connections: Signal and -Ve.
Pull cord: 3 metres cord length, generates an alarm call when activated.
Indicator: Red reassurance LED, active in alarm.
IP Rating (EN 60529):IP41 when correctly installed.
Mounting: Ceiling or wall surface mountable.
Dimensions: 93mm diameter x 27mm deep.
NC806CS Overdoor Light c/w Sounder
Input: Voltage: 12Vd.c.; Connections: Signal, -Ve and +Ve.
Indicators: Dual ultra-bright red LEDs, active in alarm.
Sounder: Active in alarm.
IP Rating (EN 60529):IP41 when correctly installed.
Mounting: Mounts on 25mm UK single gang back box.
Dimensions: 87 x 87 x 68mm (W x H x D).
NC809DBBT Accessible Toilet Reset Point c/w Sounder
Input: Voltage: 12Vd.c.; Connections: Signal, -Ve and +Ve.
Indicator: Red reassurance LED, active in alarm.
Sounder: Active in alarm.
IP Rating (EN 60529):IP41 when correctly installed.
Mounting: Mounts on 25mm UK single gang back box.
Dimensions: 87 x 87 x 24mm (W x H x D).
E&OE. We reserve the right to alter product specifications at our discretion and without prior notice. This document has been
carefully checked prior to publication. However, no responsibility can be accepted by the manufacturer or distributors of this
equipment for any misinterpretation of an instruction or guidance note or for the compliance of the system as a whole.

Approved Document No.: DNU0951001 Rev 5 • Page 2 of 8
QUICK START INSTALLATION GUIDE
-Ve SIG +Ve1 -Ve +VeSpr Sig -Ve Sig -Ve +Ve
NC C NO
NEGATIVE
SIGNAL POSITIVE
F
U
S E
L
N
CONN2
R
R
E
E
S
S
E
E
T
T
Indicators will operate:
Continuously when pull cord is activated
Intermittently when help is on the way
On Calling
Call Accept
AcceptReset
PLK1
Selectable Link
Mains Connector
230Va.c. from
3A switched
fused spur
(not supplied)
NC943B
Single Zone Call Controller
c/w Sounder
(mounts on a 25mm UK double
gang back box)
TYPICAL LOCATION
Outside the WC in a remote
staffed area.
NC806CS
Overdoor Light
c/w Sounder
(mounts on a
25mm UK single
gang back box)
TYPICAL LOCATION
Outside the WC
above the door.
NC809DBBT
Accessible Toilet Reset
Point c/w sounder
(mounts on a 25mm UK
single gang back box)
TYPICAL LOCATION
Inside the WC so it is
reachable from the WC
and a wheelchair.
Position bottom edge 800-
1000mm above floor level.
DO NOT connect
+Ve to the pull’s
signal (Sig) terminal
as this WILL damage
the device.
1mm2T&E
Figure 1 below, summarises key information provided in this document. For experienced installers, this should be all you need to get started. NC951 components can be wired in any order. If in doubt, or if using this equipment for the first time, read the full document.
Volt-free
relay contacts
The call controller is a piece of Class 2 equipment. However, any metal parts used during installation, i.e. metal back box, MUST be earthed.
Three cores of four core stranded burglar alarm cable
NC807C
Ceiling / Wall Pull
(surface mounting)
Base fits 16mm
conduit and
BESA centres
TYPICAL LOCATION
Alongside the WC.
Set upper triangle
800-1000mm above
floor level. Set lower
triangle 100mm
above floor level.
Figure 1 : Typical NC951 Accessible Toilet Alarm Wiring
Approved Document No.: DNU0951001 Rev 5 • Page 7 of 8
BASIC OPERATION
The default operation of the NC951 is shown in the diagrams below.
Raising an alarm call
Accepting an alarm call and resetting the system
The distressed person raises
an alarm call by pulling the
cord on the ceiling / wall pull.
The overdoor light activates to visually
and audibly guide people to the area
where assistance is required.
The call controller’s red ‘Calling’ LED and sounder
activate steady to let staff know someone inside
the WC requires assistance.
Inside the WC
The ceiling / wall pull’s red LED activates steady,
the reset point’s red LED and sounder activate steady
to confirm an alarm call has been raised.
Outside the WC
A member of staff accepts the
alarm call by pressing the call
controller’s ‘Call Accept’ button.
Outside the WC
Once assistance has been provided,
the call is cancelled by pressing the
reset point’s ‘RESET’ button.
The system returns to normal.
The ceiling / wall pull’s red LED activates steady,
the reset point’s red LED and sounder activate
intermittently to confirm help is on the way.
Inside the WC
Note: The call controller’s on-board relay will also activate when an alarm call is made and
any external equipment connected to the relay contacts will operate as configured.
Note: Instead of accepting an alarm call,
a selectable link inside the call controller
also allows its button operation to be set
up to reset the system, or have no effect.
Refer to ‘Engineer Selectable Functions’
section for details.

Battery backup enable/disable (link PLK2)
Link PLK2 (supplied) enables or disables the call controller’s battery backup
facility. When enabled (link PLK2 fitted), the battery backup supply will
continue to power the system for approximately 24 hours (standby) plus 15
minutes (alarm running time) in the event of a mains failure. This will be
indicated by the call controller’s power ‘On’ LED flashing green.
Should the mains supply remain disconnected for a prolonged period of time, the battery
backup facility will automatically shutdown to prevent the batteries from deep discharge.
Note: PLK2 is not fitted in the call controller when dispatched. This is to conserve battery life
and ensure the safety of the call controller during storage/transit.
Volume control (potentiometer VR1)
Turn VR1 clockwise to increase (or anti-clockwise to decrease) the volume of
the call controller’s on-board sounder.
Sounder and LED test facility
With no calls on the system, pressing the call controller’s ‘Call Accept’ button with link PLK1
fitted in the Reset (b) position will cause all of the system’s sounders and LEDs (apart from
the ceiling / wall pull’s LED) to activate. When the button is released, the LEDs and sounders
will switch off. The same test can be carried out by pressing the reset point’s ‘RESET’ button.
EXPANDING THE SYSTEM WITH OPTIONAL EMERGENCY CALL LEVEL
Up to three additional 800 Series devices (any device mix) can be connected to the NC943B
call controller. A typical expanded system is shown in figure 4 below. Should you wish
to connect more than three additional devices, consider using an NC941 single zone call
controller which is designed for powering larger call systems.
If required, the call controller can be used to generate a more urgent level of call. One
compatible device is the NC804DE emergency call point (shown below). This device is
typically used to allow the person attending the call to request additional assistance. When
an emergency call is triggered, any active or accepted alarm calls will be overridden. The call
controller’s red ‘Calling’ LED will flash, its sounder (and relay) will pulse and the overdoor
light will also pulse.
Figure 4 : Typical Expanded NC951 System with Emergency Call
Approved Document No.: DNU0951001 Rev 5 • Page 6 of 8
Reset
Reset
Reset
(no link fitted)
Volume
NO
C
NC
CONN3
Fit to
Enable
battery
PLK2
Accept
Accept
Accept
VR1
PLK1
PLK1
PLK1
SIG 1-Ve +Ve
NC C NO
NEGATIVE
SIGNAL
POSITIVE
Volt free relay
contacts
Sig -Ve +Ve
Sig Sig S-V+V1-Ve +Ve
-Ve +Ve -Ve -Ve
Intermittently when help is on the way
R
R
E
E
S
S
E
E
T
T
Indicators will operate:
Continuously when pull cord is activated
Intermittently when help is on the way
On Calling
Call Accept
F
U
S
E
Call
ALERT RESET
NC943B NC806CS NC807C NC809DBBT NC807C NC804DE NC806CS
/
1mm2
T&E
DESIGNING AN ACCESSIBLE TOILET ALARM SYSTEM
Figure 2 below, shows a typical ‘good practice’ corner WC layout for an accessible toilet alarm
system based on the recommendations of BS 8300 and the Building Regulations Approved
Document Part M. Always refer to the full version of these documents before system design
and installation. Refer to figure 1 (page 2) for wiring details.
Figure 2 : Typical Accessible Toilet Alarm System for a Corner WC
WC
Indicatorswill operate:
Approved Document No.: DNU0951001 Rev 5 • Page 3 of 8
Site the ceiling / wall pull so its pull
cord is behind the horizontal grab
rail and reachable from the WC and
from the floor close to the WC.
Site the call controller
outside the WC in a
remote staffed area.
Site the reset point so it is reachable
from the WC and a wheelchair.
Position with its bottom edge at
800mm to 1000mm above floor level.
Set the lower
triangle at 100mm
above floor level.
Set the upper
triangle at 800mm
to 1000mm above
floor level.
4 core
security cable
230Va.c.
3A switched
fused spur.
Site the overdoor
light outside the
WC above the door.
1mm2T&E
Reset
Reset
Reset
(no link fitted)
Volume
NO
C
NC
CONN3
Fit to
Enable
battery
PLK2
Accept
Accept
Accept
VR1
PLK1
PLK1
PLK1

ENGINEER SELECTABLE FUNCTIONS
The NC943B call controller has a number of engineer selectable functions (refer to figure 3
below). This section explains how these functions work and how to set them.
Figure 3 : Rear View of the NC943B Call Controller
(a) Accept the call
In this factory-fitted position, pressing the ‘Call Accept’ button will send a slow
pulsing signal to the overdoor light and reset point. All sounders and LEDs will
remain active until the reset point’s ‘RESET’ button is pressed.
(b) Reset the system
In this position, pressing the ‘Call Accept’ button will cancel the alarm and
return the system to its normal state.
(c) Have no effect
With no link fitted, pressing the ‘Call Accept’ button signal will have no effect.
Note: It is recommended the call controller’s button is set up to ‘Call Accept’
operation, which is the factory setting. ‘Reset’ and ‘no effect’ operations
are outside the scope of BS 8300 and therefore not recommended for use in
accessible toilet alarm installations. However, they may be suitable for use in
other applications subject to the approval of the responsible person(s).
Volt-free relay operation (RLY1)
The call controller includes an on-board volt-free relay with contacts rated
30Vd.c. @ 1A. This relay can be used to switch optional externally powered
devices such as sounders, strobes, or the extra low voltage coils of mains
controlling relays.
When no calls are on the system, the normally closed contact is made. When an alarm signal
is present, the relay switches and the normally open contact is made.
‘Call Accept’ button
operation (link PLK1)
Link PLK1 (supplied) allows the
call controller’s ‘Call Accept’
button to be set up as follows
when an alarm signal is raised:
L
N
Volume
+VE
SIGNAL
-VE
NO
C
NC
DO NOT
REMOVE
(BATTERY BACKUP
COVER)
Fit to
Enable
battery
PLK2
CONN3
CONN2
VR1
RLY1
AcceptReset
PLK1
Reset
Reset
Reset
(no link fitted)
Volume
NO
C
NC
CONN3
Fit to
Enable
battery
PLK2
Accept
Accept
Accept
VR1
PLK1
PLK1
PLK1
Reset
Reset
Reset
(no link fitted)
Volume
NO
C
NC
CONN3
Fit to
Enable
battery
PLK2
Accept
Accept
Accept
VR1
PLK1
PLK1
PLK1
Reset
Reset
Reset
(no link fitted)
Volume
NO
C
NC
CONN3
Fit to
Enable
battery
PLK2
Accept
Accept
Accept
VR1
PLK1
PLK1
PLK1
Approved Document No.: DNU0951001 Rev 5 • Page 5 of 8
INSTALLING THE ACCESSIBLE TOILET ALARM SYSTEM
ALWAYS ENSURE MAINS SUPPLY IS ISOLATED BEFORE MAKING ANY CONNECTIONS.
Refer to figure 1 (page 2) for wiring details.
Mains wiring
All mains wiring should be provided in accordance with the current edition of the IEE
Wiring Regs. (BS 7671) and/or other national wiring rules.
The general requirement for the mains supply to the NC943B call controller is fixed wiring,
using three core cable of not less than 1mm2. This should be fed from an isolating switched
fused spur, fused at 3A, which is marked appropriately and secure from unauthorised
operation.
Live and neutral should be connected to the call controller’s L and N terminals respectively.
If a plastic back box is used, make the earth connection to the earth terminal at connector
block CONN2. If a metal back box is used, the earth connection must be made to the earth
bonding point on the back box.
Extra low voltage (ELV) wiring
Always segregate ELV wiring from mains wiring.
Three cores of four core stranded burglar alarm cable is ideal for ELV wiring on most
installations with all components requiring a positive, negative and signal connection
(except the ceiling / wall pull which DOES NOT require a positive connection).
Note: The running order of the overdoor light, ceiling / wall pull and reset point can be
changed to suit a specific application and/or to reduce wiring runs.
All wall-mounting devices (excluding pull units) should be mounted onto a back box of
25mm depth. Assess the condition and construction of all mounting surfaces prior to
installation and use suitable screw fixings.
Approved Document No.: DNU0951001 Rev 5 • Page 4 of 8
Reset
Reset
Reset
(no link fitted)
Volume
NO
C
NC
CONN3
Fit to
Enable
battery
PLK2
Accept
Accept
Accept
VR1
PLK1
PLK1
PLK1