E2S Warning Signals
Impress House, Mansell Road, Acton, London W3 7QH sales@e2s.com e2s.com
D221
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001
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IS
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UL Issue A 26/04/2021
FIRE INSTRUCTION & SERVICE MANUAL
A112N Range AlertAlarm Sounder UL464 / CAN/ULC
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S525
Model: A112NDC
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40°C to +66°C /
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40°F to +151°F
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Units can be mounted using the 2
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off ø9mm holes in the mounting lugs or through the back of the housing using the supplied gasket
seal.
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A112NDC024 is approved for use as an audible signal appliance for fire alarm use –
Public Mode (UL464 & CAN/ULC
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S525) and pro-
duces a minimum sound pressure level of P1: US: 93.37dB(A); CA: 101.6dB(A) / P2: US: 94.64dB(A); CA: 103.9dB(A) at 10 feet,
(figures @ worst case 11.5Vdc).
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A112NDC024 produces a minimum sound pressure level of P1: US: 95.6dB(A); CA: 104.3dB(A) / P2: US: 98.55dB(A); CA: 107.6dB(A)
at 10 feet (@24Vdc)
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For Fire Alarm applications, the Sounder Volume must be at the highest setting, (see volume control section). For fire alarm use, Tone
12 as shown below must be selected:
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Connection Terminals: Pluggable
AC: 1.0
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2.5mm
2
/ AWG18
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AWG12
DC: 0.2
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2.5mm
2
/ AWG24
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AWG12
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Terminal Tightening torque 0.4Nm
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To maintain Ingress Protection, cable entries must be fitted with suitably rated cable glands or stopping plugs
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Units can be located indoor or outdoor wet use, wall or ceiling mounted and there are no limitations on orientation
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Factory finishes are not intended to be modified
Surge Current Ratings for use in fire alarm systems
Model
Nominal Voltage
Voltage Range
Initial Peak
Initial RMS
A112NDC024
24V dc
11.5
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54V dc
P1: 1455mA / P2: 1164mA
P1: 140mA / P2: 286mA
A112NDC024 Sounder Directional Characteristics for Canadian Fire CAN/ULC
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S525 at 10 feet
Horizontal Axis
Vertical Axis
Angle
OSPL
Angle
OSPL
Angle
OSPL
Angle
OSPL
Ref. 90°
103.7 dB(A)
Ref. 90°
103.7 dB(A)
Ref. 90°
103.8 dB(A)
Ref. 90°
103.78dB(A)
129°
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3 dB(A)
49°
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3 dB(A)
126°
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3 dB(A)
49°
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3 dB(A)
131°
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6 dB(A)
39°
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6 dB(A)
140°
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6 dB(A)
40°
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6 dB(A)
180°
92.6 dB(A)
0°
91.2 dB(A)
180°
92.5 dB(A)
0°
90.8 dB(A)
Attention: Installation must be carried out by an electrician in compliance with the National Electrical Code, NFPA 70, and the National Fire Alarm
Signaling Code, NFPA 72 or CSA 22.1 Canadian Electrical Code, Part I, Safety Standard for Electrical Installations, Section 32. / L'installation doit
exclusivement être réalisée par du personnel qualifié, conformément au code national d'électricité américain, NFPA 70, et le code national d
’
alarrme
incendie et de signalisation NFPA 72 ou CSA 22.1 Code canadien de l'électricité, première partie, norme de sécurité relative aux installations électriques,
Section 32
Attention: Disconnect from power source before installation or service to prevent electric shock / Débranchez
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le de la source d'alimentation avant l'instal-
lation ou l'entretien pour éviter tout choc électrique.
Attention: Do not paint / Ne pas Peinturer
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+
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S2
S3
S2 S1
P1
P2
1000Hz(0.5s on, 0.5s off)x3 + 1s gap ISO 8201 Temporal
Pattern
Stage 1
Set DIP
SW 1
Tone No.
Tone Description
Tone Visual
Stage 1 & 2
DIP SW 1/2
Settings
1 2 3 4 5 6
Stage 3
Set DIP
SW 1
(S3)
Stage 4
Set DIP
SW 1
(S2 + S3)
12
1 1 0 1 0 0
1000Hz 0.5s
0.5s
0.5s
0.5s
0.5s
1s
1
8
Summary of Contents for A112N
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