wheelock ET70WP-2475 Service Manual
THE CITY OF
NEW YORK
DEPARTMENT OF BUILDINGS
DESCRIPTION
Wheelock’s Weatherproof Low Profile Speaker
Strobe, Series ET70WP appliances for wall and ceiling
mounting have an extended temperature range of
°
-31
F to 150°F (-35°C to 66°C) that will satisfy virtually
all outdoor and severe environment applications.
ACTION MESSAGE S
ADA
SYSTEMS
U
L
COMMUNICATIONS
®
Helping People Take Action
SERIES ET70WP
WEATHERPROOF SPEAKER
STROBE
INC.
SM
The Wheelock Weatherproof Speaker Strobe is
designed for maximum performance, reliability, and
cost effectiveness while meeting or exceeding the
latest requirements of NFPA 72 (National Fire Alarm
Code), UL Standard 1638 (Standard for Visual Signaling
Appliances), and UL Standard 1480 (Standard for
Speaker Appliances).
The strobe has a 75 candela intensity on axis at -31°F
(-35°C) and 180cd at 77°F (25°C) with low current
draw. For outdoor applications the ET70WP–2475WFR must be wall mounted to a Weatherproof Back Box
(IOB). The speakers are designed for multiple power
requirements with high dBA output at each power tap.
The low profi le model offers a choice of fi eld selectable
taps, 1/8W to 8W for either 25.0 VRMS or 70.0 VRMS
audio systems. The low profi le design incorporates
a high efficiency speaker for maximum output at
minimum power across a frequency range of 400 Hz
to 4000 Hz and features a sealed back construction
for extra protection and improved audibility. The low
profi le speaker strobes can provide non-synchronized
operation when directly connected to the Fire Alarm
Control Panel, or synchronized strobe operation when
used in conjunction with a Wheelock Sync Module
(SM), Dual Sync Module (DSM), or Wheelock Power
Supplies (PS-12/24-8CP and PS-12/24-8MP) with builtin patented sync protocol. The strobes use a Xenon
fl ashtube with solid state circuitry enclosed in a rugged
Lexan lens to provide maximum visibility and reliability
for effective visible signaling.
SERIES ET70WP
Mounted to IOB-R
FEATURES
• Approvals include: UL Standard 1638, UL Standard
1480, California State Fire Marshal (CSFM), and
New York City (MEA) Pending: Factory Mutual (FM)
and Chicago (BFP)
• Designed to meet or exceed NFPA/UFC/ANSI 117.1/
OSHA Part 29, 1910.165, and ADA requirements.
• UL Standard 1638 and UL Standard 464 listed
with extended temperature range of -31°F
to 150°F (-35°C to 66°C)
• 24 VDC with new UL “Regulated” Voltage Range:
16-33 VDC using fi ltered DC or unfi ltered FWR voltage
• Sync/Non-Sync strobe. Synchronize strobe with
Series SM, DSM Sync Modules or PS-12/24-8CP
and PS-12/24-8MP Power Supplies with built-in
patented sync protocol
• IN and OUT wiring termination that accepts two
#12-18 AWG wires at each terminal
• Inputs are polarized for compatibility with industry
standard reverse polarity supervison
Copyright 2004 Wheelock, Inc. All rights reserved.
NOTE: All CAUTIONS and WARNINGS are identifi ed by the symbol All WARNINGS are printed in bold capital letters.
WARNING: PLEASE READ THESE SPECIFICATIONS AND ASSOCIATED INSTALLATION INSTRUCTIONS CAREFULLY
BEFORE USING, SPECIFYING OR APPLYING THIS PRODUCT. FAILURE TO COMPLY WITH ANY OF THESE INSTUCTIONS,
CAUTIONS, OR WARNINGS COULD RESULT IN IMPROPER APPLICATION, INSTALLATION, AND/OR OPERATION OF THESE
PRODUCTS IN AN EMERGENCY SITUATION, WHICH COULD RESULT IN PROPERTY DAMAGE, AND SERIOUS INJURY OR
DEATH TO YOU AND/OR OTHERS.
General Notes:
• Wheelock UL 1638 Strobes are designed to produce 30-62 fl ashes per minute over the Regulated Voltage Range. If used in an indoor application,
UL 1638 strobes must be operated at a minimum of 20 VDC to meet the NFPA-72 (1999) fl ash rate of 1 to 2 fl ashes pers second and ADA Guideline
fl ash rate of 1 to 3 fl ashes per second.
• Wheelock Weatherproof Appliances are designed to operate over an extended temperature range of -31°F to 150°F (-35°C to 66°C) and all candela
ratings represent minimum effective strobe intensity based on UL 1638. Maximum humidity of 93% RH ± 2%.
• “Regulated Voltage Range” is the newest terminology used by UL to identify the voltage range. Prior to this change, UL used the
terminology “Listed Voltage Range”.
Table 1: UL Listed Model and Rating - Speaker
Model
Reverberant dBA @ 10 feet (UL 1480) Rated
Watts
Voltage
(VRMS)
1/8 1/4 1/2 1 2 4 8 1/8 1/4 1/2 1 2 4 8
Anechoic dBA @ 10 feet @ 1 kHz
Rated Watts
ET70WP-2475W 25/70 77 80 83 86 88 91 93 78 81 84 87 90 92 95
ET70WP-2475C 25/70 77 80 83 86 88 91 93 78 81 84 87 90 92 95
* RMS current ratings are per UL average RMS
Table 2: UL Listed Model and Candela Strobe Rating
Rated Strobe Candela (cd)
Voltage *Rated Average Current
24.0 VDC 0.094
@ 77°F (25°C) @ -31°F (-35°C)
180cd 75cd
UL Max* 0.138
method. UL max current rating is the maximum
RMS current within the listed voltage range
(16-33v for 24v units). For strobes the UL max
current is usually at the minimum listed voltage
(16v for 24v units). For audibles the max current
is usually at the maximum listed voltage (33v
for 24v units). For unfi ltered FWR ratings, see
installation instructions.
SERIES ETWP SPEAKER & STROBE OPERATE
INDEPENDENTLY (NON-SYNC OR SYNC)
FROM
PRECEDING
APPLIANCE
OR VOICE
EVACUATION
PANEL
FROM
PRECEDING
STROBE,
SYNC MODULE,
POWER SUPPLY
OR FACP
+
-
++
-
-
+
STROBE
+
-
SPEAKER
+
-
-
TO NEXT
APPLIANCE
OR EOLR
TO NEXT
STROBE OR
EOLR
SERIES ETWP SPEAKER STROBE APPLIANCES
SYNCHRONIZED W/DSM MODULE SINGLE
CLASS “A”
STROBE
NAC
CIRCUIT
OUT
FACP
STROBE
NAC
CIRCUIT
RETURN
DSM
SYNC
+OUT 1
+ IN 1
MINUS 1
+
-
MINUS 2
+ IN 2
+ OUT 2
+
-
ET ET ET
AUDIBLE
ET ET ET
SERIES ETWP SPEAKER STROBES SYNCHRONIZED
W/MULTIPLE DSM MODULES
DSM #1
Strobe NAC Cir.
F
A
Strobe NAC Cir.
C
P
Strobe NAC Cir.
DSM Interconnecting wiring shown. Maximum of
Sync
+
-
DSM #2
Sync
+
-
DSM #3
Sync
+
-
twenty (20)
ET ET
ET ET
ET ET
SERIES ETWP SPEAKER STROBE APPLIANCES &
RSS STROBES SYNCHRONIZED W/PS-12/24-8CP and
PS-12/24-8MP
Series PS-12/24-8MP
C
F
A
OUTPUTS
1-4
4-CLASS
"B"
OR
2-CLASS
"A"
ET
ET
RSS
RSS
EOLR
P
ET
Series PS-12/24-8MP
RSS
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