wheelock E90-24MCC INSTALLATION INSTRUCTIONS

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273 Branchport Avenue
Long Branch, N.J. 07740 INSTALLATION INSTRUCTIONS
[phone] SERIES E70-24MCC AND E90-24MCC MULTI-CANDELA SPEAKER STROBE
www.wheelockinc.com (CEILING MOUNT VERSION)

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

GENERAL:

Wheelock’s Series E70-24MCC and E90-24MCC Multi-Candela Speaker Strobe is UL Listed under Standard 1971 for (Signaling Devices for the Hearing Impaired) for
indoor fire protection service. The Series E70-24MCC and E90-24MCC is designed for multiple power requirements with high dBA output at each power tap and
offers a choice of field selectable taps, 1/8W to 2W, for either 25.0VRMS or 70.0VRMS audio systems. 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 Series E70-24MCC and E90-24MCC Multi-Candela provides four selectable light output intensities in one unit and incorporates a speaker mounting
plate attached to the speaker for ease of installation. the low profile speaker strobe 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
power supplies. The Strobes use a xenon flashtube with solid state circuitry enclosed in a polycarbonate lens to provide maximum visibility and reliability for
effective visible signaling. The Series E70-24MCC and E90-24MCC is Listed for indoor use, ceiling mount only
(see wiring and mounting information).

WARNING: PLEASE READ THESE INSTRUCTIONS CAREFULLY. FAILURE TO COMPLY WITH ANY OF THE FOLLOWING
INSTRUCTIONS, CAUTIONS AND WARNINGS COULD RESULT IN IMPROPER APPLICATION, CANDELA SETTING, 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.

SPECIFICATIONS:

Table 1: UL Listed Models and Ratings

Speaker Strobe
dBA at 10 Feet Regulated Voltage

Models Voltage (Rated Watts) Voltage Range Candela

(VRMS) 1/8 1/4 1/2 1 2 (VDC/VRMS) (VDC/VRMS)
E70-24MCC 25/70 76 80 82 85 88 24 16.0-33.0 15/30/75/95
E90-24MCC 25/70 76 80 82 85 88 24 16.0-33.0 15/30/75/95

NOTES:

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

2. Strobes meet the required light distribution patterns defined in UL 1971.

3. The E70/90-24MCC 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. The effect of
shipping and storage temperatures shall not adversely affect the performance of the appliance when it is stored in the original cartons and is not subjected to
misuse or abuse.

4. The maximum supervision voltage is 33 volts DC.

5. Frequency range of speakers is 400-4000Hz.

CAUTION: Always operate audio amplifiers and speakers within their specified ratings. Excessive input may distort sound quality and may damage audio
equipment. Do not exceed 100% of speaker input voltage per UL 1480. Improper input voltage can damage speaker. If distortion is heard, check for clipping of the
audio appliance with an oscilloscope and reduce the amplifier input level or gain level to eliminate any clipping.

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

Table 2: UL Current Ratings with Strobe Only

Maximum RMS Current (AMPS)

UL Voltage 15cd 30cd 75cd 95cd
DC 16-33VDC 0.065 0.105 0.189 0.249
FWR 16-33VRMS 0.110 0.170 0.280 0.375

When calculating the total currents use Table 2 to determine the highest value of RMS current for an individual strobe, then multiply these values 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 to include any required safety
factors.

NOTE: The maximum number of strobes on a single notification appliance circuit shall not exceed 50.

CAUTION: These strobes are UL Listed as “Regulated”. They are intended to be used with FACPs whose notification circuits are UL Listed as “Regulated.”

These appliances shall not be used on UL Listed “Special Application” notification circuits unless the appliances are identified to be compatible in the installation
instructions of the FACP or unless the FACP is identified to be compatible in this instruction manual.

WARNING: THESE STROBES WERE TESTED TO THE REGULATED VOLTAGE LIMITS OF 16.0-33.0 VOLTS FOR 24V MODELS USING

FILTERED DC OR UNFILTERED FULL-WAVE-RECTIFIED VOLTAGE. DO NOT APPLY VOLTAGE OUTSIDE OF THIS RANGE.

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 APPPLIED VOLTAGE TO THE STROBES. THE MAXIMUM
WIRE IMPEDANCE BETWEEN STROBES SHALL NOT EXCEED 35 OHMS.

Copyright 2005 Wheelock, Inc. All rights reserved. P84398F

with the backboxes specified in these instructions

Sheet 1 of 4

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

ABC

F

WARNING: MAKE SURE THAT THE TOTAL RMS CURRENT REQUIRED BY ALL APPLIANCES THAT ARE CONNECTED TO THE
SYSTEM’S PRIMARY AND SECONDARY POWER SOURCES, NOTIFICATION APPLICIANCE CIRCUITS, SM, DSM SYNC MODULES, OR
WHEELOCK POWER SUPPLIES DOES 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.

WIRING AND MOUNTING INFORMATION:

CAUTION: The following figures show the maximum number of field wires (conductors) that can enter the backbox used with each mounting option. If these

limits are exceeded, there may be insufficient space in the backbox to accommodate the field wires and stresses from the wires could damage the product. Check that
the installed product will have sufficient clearance and wiring room prior to installing backboxes and conduit, especially if sheathed multiconductor cable or 3/4"
conduit fittings are used.

Although the limits shown for each mounting option comply with the National Electrical Code (NEC), Wheelock recommends use of the largest backbox option shown
and the use of approved stranded field wires, whenever possible, to provide additional wiring room for easy installation and minimum stress on the product from wiring.

A

4" SQ. X 1-1/2"
EXTENSION RING *

#8-32
SCREWS

SQUARE OR
ROUND GRILLE

AWG #18 AWG #16 AWG #14 AWG#12

FROM PRECEDING SPEAKER

FROM PRECEDING STROBE

APPLIANCE OR SYNC MODULE

OR FIRE ALARM

CONTROL PANEL (FACP)

FLUSH MOUNTING

(STROBE SPEAKER)

4" SQ. X 2-1/8"
BACKBOX

#6-19
SCREWS

MAXIMUM NUMBER OF CONDUCTORS

8 8 8 8

SPEAKER
MOUNTING
PLATE

B

SURFACE
BACKBOX
(SBB)

#8-32
SCREWS

SQUARE
GRILLE

NOTE: BACKBOX IS COMPATIBLE WITH WIREMOLD AND CONDUIT,

MOUNTING HOLES ARE FOR SINGLE-GANG, DOUBLE-GANG,

4" SQ. 3-1/2" & 4" OCTAGON OR ROUND BACKBOXES.

AWG #18 AWG #16 AWG #14 AWG#12

Figure 1: Figure 2:

TO NEXT SPEAKER
OR END OF LINE RESISTOR
(EOLR)

TO NEXT APPLIANCE
OR EOLR

SURFACE MOUNTING

(STROBE SPEAKER)

SPEAKER
MOUNTING
PLATE

#6-19
SCREWS

MAXIMUM NUMBER OF CONDUCTORS

8 8 8 8

• This model has in-out wiring terminals that accept two #12
to #18 American Wire Gauge (AWG) wires at each screw
terminal. Strip leads 3/8 inches and connect to screw
terminals.

• Break all in-out wire runs on supervised circuits to assure

+ STROBE - COM+

(OPTIONAL)

GROUNDING: Connect ground wire to backbox. Install signaling appliance to backbox using mounting screws provided.

* Refer to Sync Module instruction sheets SM (P83123), DSM (P83177) or Wheelock power supplies for additional information.

integrity of circuit supervision as shown in Figure 2. The
polarity shown in the wiring diagrams is for operation of
the appliances.

WARNING: CHECK ELECTRICAL RATINGS SPECIFIED IN TABLES 1 AND 2 (AS APPROPRIATE) TO ENSURE PROPER INPUT. BE SURE
THAT SPEAKER WIRING IS CONNECTED TO SPEAKER TERMINALS ONLY AND STROBE WIRING IS CONNECTED TO STROBE TERMINALS
ONLY. CHECK TO INSURE THAT WIRING AT FACP IS CORRECT. IMPROPER ELECTRICAL INPUT CAN DAMAGE THE PRODUCT OR
CAUSE IT TO MALFUNCTION, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR
OTHERS.

Figure 3: Jumper plug is used to select tap

settings which = dBA loudness.

Figure 4: Tap Settings (Factory setting is 70V @

1/2W (Tap F))

D E

G H

1. Each doubling of rated Watts increases sound output by 3 dBA.
Field selectable input terminals are provided on each unit. The
following wattage selections are available: 1/8W, 1/4W, 1/2W,
1W and 2W.

2. Each letter corresponds to a plug position of the header located
on the printed circuit board. Select voltage and wattage as

A

B

C

D

E

F

G

H

NOTE: Use needle nose pliers to pull and properly insert the jumper plug to the desired tap setting.

shown in Table 4 below.

3. A 1.5µF blocking capacitor for DC supervision of audio lines by
the FACP is factory wired in series with the speaker input.

WARNING: THE SPEAKER STROBE APPLIANCE MUST BE FIELD SET TO THE DESIRED dBA SOUND OUTPUT LEVEL BEFORE IT IS

INSTALLED. THIS IS DONE BY PROPERLY INSERTING JUMPER PLUGS IN ACCORDANCE WITH THESE INSTRUCTIONS. INCORRECT

P84398 F

Sheet 2 of 4