wheelock WHT, WH3T, WH1T, WM3T INSTALLATION INSTRUCTIONS

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Long Branch, N.J. 07740
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www.wheelockinc.com

INSTALLATION INSTRUCTIONS

STROBE APPLIANCES

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

GENERAL:

The Strobe Appliances are UL Listed under Standard 1638 for outdoor Fire Protective Service. They are listed for outdoor use, wall
mount, with the backboxes specified in these instructions (See Mounting Option). The Strobe Appliances use a Xenon flashtube with
solid state circuitry enclosed in a rugged Lexan lens to provide maximum visibility and reliability for effective visible signaling. All
inputs are polarized for compatibility with standard reverse polarity supervision of circuit wiring by a Fire Alarm Control Panel
(FACP).

NOTE: All CAUTIONS and WARNINGS are identified by the symbol

. All warnings are printed in bold capital letters.

WARNING: READ THESE INSTRUCTIONS CAREFULLY. FAILURE TO COMPLY WITH ANY OF THE
FOLLOWING INSTRUCTIONS, CAUTIONS AND 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.

WARNING: THE STROBE APPLIANCES ARE NOT TO BE USED AS AN INDOOR VISUAL EVACUATION
SIGNAL OR FOR THE HEARING IMPAIRED.

SPECIFICATIONS:

Table 1: UL Listed Models and Ratings

Outdoor

2

Plate

Rated Input

Voltage Range

Nominal Input

Voltage

Rated Average

Current

Rated

Candela1

Mounting

Options
WHT-12 ---- 12VDC .150A 15cd B
WHT-24 18.0-31.0VDC 24VDC .075A 15cd B
WH1T-12 ---- 12VDC .150A 15cd C
WH1T-24 18.0-31.0VDC 24VDC .075A 15cd C
WH1T-115 ---- 115VAC .060A 15cd C
WH3T-12 ---- 12VDC .150A 15cd A
WH3T-24 18.0-31.0VDC 24VDC .075A 15cd A
WH3T-115 ---- 115VAC .060A 15cd A
WM3T-24 18.0-31.0VDC 24VDC .088A 117cd A

1

At -35° C the following candela ratings apply: 117cd models = 78cd; 15cd models = 7.5cd

2

W in models number indicates white or clear lens. Substitute R for optional red lens (does not apply to WM models). Derate
intensity by 60% for red lens.

WARNING: ALTHOUGH UL TESTING HAS VERIFIED THAT THESE STROBES FUNCTION EVEN AT 80% OF
THEIR MINIMUM RATING AND 110% OF THEIR MAXIMUM RATING, WHEELOCK STRONGLY RECOMMENDS
THAT THE VOLTAGE APPLIED TO THESE PRODUCTS BE WITHIN THEIR RATED INPUT VOLTAGE RANGE.
THE APPLICATION OF IMPROPER VOLTAGE MAY RESULT IN DEGRADED OPERATION OR DAMAGE TO
THESE PRODUCTS, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO
YOU AND/OR OTHERS.

The UL Listed "Rated Input Voltage Range" is 18.0-31.0VDC for WHT-24, WH1T-24, WH3T-24, WM3T-24 and 12VDC for WHT­12, WHIT-12, WH3T-12 using either filtered (DC) or unfiltered full-wave-rectified (FWR) voltage. 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.

Copyright 1994, 1999 Wheelock, Inc. All rights reserved.

P82774 C

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Figure 1.

Table 2.

Model Typical Flashes Per Secod Across Rated Voltage Range

WM3T-24 18 20 22 24 26 28 31

DC/FWR 0.7 0.8 0.9 1.0 1.1 1.2 1.3

NOTE: Typical flash rate for WH models is 1 per second at nominal
voltage.

(For full-wave-rectified input voltage,
multiply 1.41 by percent value shown in
Figure 1.)

WARNING: MAKE SURE THAT THE TOTAL AVERAGE CURRENT REQUIRED BY ALL APPLIANCES THAT
ARE CONNECTED TO THE SYSTEM’S PRIMARY AND SECONDARY POWER SOURCES AND APPLIANCE
CIRCUITS 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 current: use Table 1 to determine the value of "Rated Average Current" for an individual strobe then
multiply this value by the total number of strobes; be sure to add the current for any other appliances, including audible signaling
appliances, powered by the same source and include any required safety factors.

WARNING: MAKE SURE THAT ALL FUSES USED ON SIGNALING CIRCUITS ARE RATED TO HANDLE THE
MAXIMUM INRUSH OR PEAK CURRENT FROM ALL APPLIANCES ON THOSE CIRCUITS. FAILURE TO DO THIS
MAY RESULT IN LOSS OF POWER TO THE SIGNALING CIRCUIT AND THE FAILURE OF ALL APPLIANCES ON
THAT CIRCUIT TO OPERATE, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR
DEATH TO YOU AND/OR OTHERS.

When calculating the maximum inrush or peak current: use Figure 1 to determine the highest value of "Rated Inrush Current" for a
strobe (across the expected operating voltage range of the strobe); then multiply that value by the total number of strobes on the
circuit; be sure to add the inrush or peak currents from any other appliances, including audible signaling appliances, on that circuit
and include any required safety factors. The time duration of the maximum strobe inrush is shown in Figure 1.

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

Table 3: Strobe Candela at Various Viewing Angles

Model

Voltage

Rated

Candela

Candela at Various Angles Per UL 1638

A1 A2 A3 A4 A5 A6/A7

12VDC 15.0cd 15.0 16.8 14.4 14.6 6.9 0.6

18.0-31.0VDC (24VDC) 15.0cd 15.0 18.8 13.7 15.6 7.4 0.9
115VAC 15.0cd 15.0 18.0 14.6 17.7 8.4 0.8

18.0-31.0VDC (24VDC) 117.0cd 117.0 15.2 16.4 6.0 7.0 1.2

P82774 C

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