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
+
1
2
3
4
I
ndicators will operate:
Intermittently when help is on the way
R
REESSEETT
Indicators will operate:
C
ontinuously when pull cord is activated
Intermittently when help is on the way
On Calling
Call Accept
Accessible Toilet Alarm
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).
NC951 KIT CONTENTS
NC809DBBT Accessible Toilet Reset Point c/w Sounder
Includes a ‘Reset’ button c/w braille text, red
reassurance LED and sounder.
Includes a red reassurance LED, red pull cord
NC807C Ceiling Pull
and two triangular pull bangles.
Accessory Pack
Containing device
mounting screws
and shorting link.
NC943B Single Zone Call Controller c/w Sounder
NC806CS Overdoor Light 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.
Single Zone Emergency Assistance Alarm
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Approved Document No.: DNU0951001 Rev 3 • Page 1 of 8
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NC949 Accessible WC
Sticker
Documentation
A Design & Installation
Guide (this document).
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a
n
g
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s
m
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-Ve SIG +Ve
1 -Ve +Ve
Spr Sig -Ve Sig -Ve +Ve
NC C NO
NEGATIVE
SIGNAL
POSITIVE
F
U
S
E
L
N
CONN2
R
REESSEETT
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
pull’s signal (Sig)
DO NOT connect
+Ve to the ceiling
damage the device.
terminal as this WILL
NC809DBBT
Point c/w sounder
single gang back box)
(mounts on a 25mm UK
Accessible Toilet Reset
Three cores of four core
stranded burglar alarm cable
NC807C
conduit and
Ceiling Pull
BESA centres
Base fits 16mm
(surface mounting)
and a wheelchair.
TYPICAL LOCATION
Inside the WC so it is
Position 750-1200mm
above floor level and at
reachable from the toilet
Alongside the WC.
TYPICAL LOCATION
least 350mm from corners.
triangle 100mm
Set upper triangle
above floor level.
800-1000mm above
floor level. Set lower
NC806CS
(mounts on a
c/w Sounder
gang back box)
Outside the WC
25mm UK single
Overdoor Light
above the door.
TYPICAL LOCATION
be earthed.
NC943B
QUICK START INSTALLATION GUIDE
Figure 1 below, summarises key information provided in this document. For experienced installers, this should be all you need to get started.
If in doubt, or if using this equipment for the first time, read the full document.
Figure 1 : Typical NC951 Accessible Toilet Alarm Wiring
Volt-free
T&E
2
relay contacts
1mm
230Va.c. from
c/w Sounder
Single Zone Call Controller
(mounts on a 25mm UK double
fused spur
3A switched
(not supplied)
staffed area.
gang back box)
TYPICAL LOCATION
i.e. metal back box, MUST
However, any metal parts used during installation,
The call controller is a piece of Class 2 equipment.
Outside the WC in a remote
Approved Document No.: DNU0951001 Rev 3 • Page 2 of 8
DESIGNING AN ACCESSIBLE TOILET ALARM SYSTEM
W
C
Indicators will operate:
Continuously when pull cord is activated
Figure 2 below, shows a typical ‘good practice’ layout for an accessible toilet alarm system
based on the recommendations of BS 8300. Always refer to the full version of BS 8300 before
system design/installation.
Figure 2 : Typical BS 8300 Compliant Accessible Toilet Alarm System
Site the ceiling pull so its pull
ord can be operated from the
c
WC and adjacent floor area.
S
et
t
he upper
t
r
iangle bet
800m
abov
m
- 1000m
e f
loor
w
lev
een
m
el.
Set the lower
triangle exactly
100mm above
floor level.
ite the overdoor light outside
S
the WC above the door.
Site the call controller
outside the WC in a
remote staffed area.
Site the reset point so it is reachable
from both the WC and a wheelchair.
Position 750mm - 1200mm above floor
level, at least 350mm from the corners.
4 core
security cable
2
T&E
1mm
230Va.c.
3A switched
fused spur.
Approved Document No.: DNU0951001 Rev 3 • Page 3 of 8
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