wheelock SA-S70-24MCW INSTALLATION INSTRUCTIONS

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INSTALLATION INSTRUCTIONS

SUPERVISED SELF-AMPLIFIED SPEAKER STROBE

(WALL MOUNT VERSION)

Use this product according to this instruction manual. Please keep this instruction manual for future reference.

MODEL NUMBERS:

SA-S70-24MCW-FR Supervised Self-Amplified Speaker with Multi-Candela
SA-S70-24MCW-FW Sync/Non-Sync Strobe, Wall Mount

GENERAL:

The Multi-Candela Supervised Self-Amplified Speaker Strobe is UL Listed under Standards UL 1971 (Standard for Signaling
Devices for the Hearing Impaired) and UL 1480 (Standard for Speakers for Fire Alarm, Emergency, and Commercial and
Professional Use) for indoor fire protection service and provides a choice of 6 different sound output levels and operates with audio
input levels of 0.5 V RMS (e.g., from Wheelock’s SALL-15S or any other 0.5V-RMS audio output source Listed for Fire Protective
Signaling Service) and 25 V RMS, all by means of selectable switch settings. The Low Profile design incorporates a high efficiency
speaker for maximum output at minimum power across a frequency range of 400Hz to 4000Hz, and features a sealed back
construction for extra protection and improved audibility. The appliance mounts onto a 4” square deep backbox with an extension
ring. (See Mounting Options.) All inputs are polarized for compatibility with standard reverse polarity supervision of circuit wiring
via a Control Panel.

The SA Series Multi-Candela Speaker Strobe provides four selectable light output intensities in one unit and can provide a
non-synchronized strobe appliance when connected directly to a Fire Alarm Control Panel (FACP), or provide a synchronized strobe
appliance when used in conjunction with a Sync Module (SM), Dual Sync Module (DSM) or Wheelock’s Power Supplies listed for
synchronization. The Strobe uses a Xenon flashtube with solid-state circuitry enclosed in a rugged Lexan lens to provide maximum
visibility and reliability for effective visible signaling. The SA Series is listed for indoor use, wall mount only

with the backboxes

specified in these instructions (see Mounting Options).

The SA Series is UL Listed for indoor use only over a temperature range of +32°F to +120°F (0°C to +49°C) and maximum
humidity of 85% RH, with the backboxes specified in these instructions (see Mounting Options).

NOTE: “Lexan” is a registered trademark of General Electric Company.

NOTE: All CAUTIONS and WARNINGS are identified by the symbol . All warnings are printed in bold capital letters.

WARNING: THE SPEAKER STROBE APPLIANCE IS A "FIRE ALARM DEVICE - DO NOT PAINT."

WARNING: PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE USING THIS PRODUCT. THE
SUPERVISED SELF-AMPLIFIED SPEAKER STROBE MUST BE FIELD SET TO THE DESIRED SOUND OUTPUT
LEVEL BEFORE IT IS INSTALLED. THIS IS DONE BY PROPERLY ADJUSTING A FOUR-POSITION SWITCH IN
ACCORDANCE WITH THESE INSTRUCTIONS. INCORRECT SETTINGS WILL RESULT IN IMPROPER
PERFORMANCE AND MAY DAMAGE THE PRODUCT, WHICH COULD RESULT IN PROPERTY DAMAGE AND
SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.

NOTE: THE MAXIMUM WIRE IMPEDENCE BETWEEN STROBES SHALL NOT EXCEED 35 OHMS. THE
MAXIMUM NUMBER OF STROBES ON A SINGLE NOTIFICATION APPLIANCE CIRCUIT SHALL NOT EXCEED 47.

WARNING: THIS APPLIANCE WAS TESTED TO THE OPERATING VOLTAGE LIMITS OF 16-33 VOLTS USING
FILTERED (DC) OR UNFILTERED FULL-WAVE-RECTIFIED (FWR) POWER FOR THE STROBE. THE AMPLIFIER
WAS TESTED TO THE OPERATING VOLTAGE LIMITS OF 16-33 VOLTS REGULATED POWER. DO NOT APPLY
80% AND 110% OF THESE VOLTAGE VALUES FOR SYSTEM OPERATION.

Copyright 2004 Wheelock, Inc. All rights reserved.

P84501 B

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WARNING: CHECK THE MINIMUM AND MAXIMUM OUTPUT OF THE POWER SUPPLY AND STANDBY
BATTERY AND SUBTRACT THE VOLTAGE DROP FROM THE CIRCUIT WIRING RESISTANCE TO DETERMINE
THE APPLIED VOLTAGE TO THE STROBES.

SPECIFICATIONS (AMPLIFIER):

Table 1A: Sound Output Level

Sound Level Rated Reverberant dBA at

10 ft per UL 1480 for 0.5-V and 25-V Settings
6 82
5 81
4 76
3 74
2 70
1 68

NOTE: See Table 5 Sound Output Level Selection for use of settings “A” and “B”.

Power Input Voltage: 16.0 to 33.0 VDC, regulated
Current Consumption: 120 mA RMS maximum
Appliance Input Level: 0.5 V RMS or 25 V RMS (Switch selectable)
Appliance Input Impedance: 0.5-V Setting:

Greater than 400 Ohms, or equivalent to less than
1/1000 W (0.001 W or 1 mW) load

25-V Setting:
Greater than 20 kOhms, or equivalent to less than
1/32 W (0.03125 W or 31.25 mW) load

Sound pressure level measurements were made at 16 VDC with audio inputs of 0.5 V RMS in the 0.5-V setting and with 25 V RMS
in the 25-V setting. Current measurements were made at 33 VDC with audio inputs of 0.5 V RMS in the 0.5-V setting and with
25 V RMS in the 25-V setting.

Reverberant dBA is a minimum UL rating based on sound measurements in a reverberant test room.

Table 1B: Strobe

Regulated Voltage

VDC/FWR

24 16.0-33.0 15/30/75/110 A,B

Voltage Range

VDC/VRMS

Candela Mounting

Options

NOTES:

1. The strobe will produce 1 flash per second over the "Regulated Voltage" range.

2. The SA Series is UL Listed for indoor use with a temperature range of +32°F to +120°F (0°C to +49°C) and maximum
humidity of 85% RH.

WARNING: CANDELA SETTING WILL DETERMINE THE CURRENT DRAW OF THE PRODUCT.

Table 2: UL Current Ratings (AMPS)

Maximum RMS Current

UL Voltage 15cd 30cd 75cd 110cd
DC 16-33.VDC 0.060 0.092 0.165 0.220
FWR 16-33.VRMS 0.102 0.155 0.253 0.347

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P84501 B

WARNING: MAKE SURE THAT THE TOTAL AVERAGE CURRENT AND TOTAL PEAK CURRENT REQUIRED BY ALL
APPLIANCES THAT ARE CONNECTED TO THE SYSTEM’S PRIMARY AND SECONDARY POWER SOURCES, NAC CIRCUITS,
SM, DSM SYNC MODULES OR WHEELOCK’S POWER SUPPLIES DO NOT EXCEED THE POWER SOURCES’ RATED
CAPACITY OR THE CURRENT RATINGS OF ANY FUSES ON THE CIRCUITS TO WHICH THESE APPLIANCES ARE WIRED.
OVERLOADING POWER SOURCES OR EXCEEDING FUSE RATINGS COULD RESULT IN LOSS OF POWER AND FAILURE TO
ALERT OCCUPANTS DURING AN EMERGENCY, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR
DEATH TO YOU AND/OR OTHERS.

When calculating the total average or peak currents: Use Table 2 to determine the highest value of “Rated Average Current” for an
individual strobe (across the expected operating voltage range of the strobe), or the highest value of “Rated Peak/Inrush Current”
(whichever is higher) of an individual strobe (across the expected voltage range of the strobe), then multiply the value by the total
number of strobes; be sure to add the currents for any other appliances, including audible signaling appliances, powered by the same
source and include any required safety factors.

If the peak current exceeds the power supplies’ peak capacity, the output voltage provided by the power supplies may drop below the
listed voltage range of the appliances connected to the supply and the voltage may not recover in some types of power supplies. For
example, an auxiliary power supply that lacks filtering at its output stage (either via lack of capacitance and/or lack of battery backup
across the output) may exhibit this characteristic.

CAUTION: The Speaker Strobe is not designed to be used on coded systems in which the applied voltage is cycled on and off.

LIGHT DISTRIBUTION:

Table 3A: Horizontal Plane

Horizontal 15cd 30cd 75cd 110cd

Angle (in deg.) UL Min. Typ. 15cd UL Min. Typ. 30cd UL Min. Typ. 75cd UL Min. Typ. 110cd

0 15.0 22 30.0 44 75.0 110 110.0 158
5 13.5 22 27.0 42 67.5 114 99.0 162
10 13.5 23 27.0 42 67.5 110 99.0 156
15 13.5 22 27.0 41 67.5 110 99.0 153
20 13.5 21 27.0 40 67.5 108 99.0 153
25 13.5 20 27.0 38 67.5 102 99.0 139
30 11.3 20 22.5 38 56.3 103 82.5 142
35 11.3 18 22.5 36 56.3 97 82.5 135
40 11.3 18 22.5 35 56.3 93 82.5 130
45 11.3 20 22.5 39 56.3 103 82.5 143
50 8.3 19 16.5 37 41.3 93 60.5 133
55 6.8 14 13.5 27 33.8 71 49.5 98
60 6.0 15 12.0 30 30.0 73 44.0 102
65 5.3 15 10.5 28 26.3 71 38.5 97
70 5.3 14 10.5 25 26.3 64 38.5 88
75 4.5 12 9.0 23 22.5 54 33.0 76
80 4.5 10 9.0 17 22.5 47 33.0 64
85 3.8 5 7.5 10 18.8 25 27.5 33
90 3.8 7 7.5 15 18.8 39 27.5 52

P84501 B

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