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SERIES CH70/90 ELECTRONIC CHIMES AND CHIME STROBES
INSTALLATION INSTRUCTIONS
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
GENERAL:
Wheelock’s Series CH70/90 Electronic Chimes and Chime Strobes are UL Listed under Standard 1971 for Signaling Devices for the
Hearing Impaired and UL Standard for Private Mode Audible Signal Appliances. CH70/90 Chimes are designed for low current draw
and versatile performance. All models offer a choice of single stroke or vibrating operation, have adjustable sound level to 83dBA
(peak anechoic) at 10 feet, and have a chime tone adjustable from 800 to 1200Hz. The Series CH70/90 appliances also incorporate a
Chime Mounting Plate attached to the chime for ease of installation. CH70 Chime Strobe models 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) or a Dual Sync Module (DSM). The strobes use a Xenon flashtube with solid state
circuitry enclosed in a rugged Lexan lens to provide maximum visibility and reliability for effective visible signaling. The
241575W candela wall mounted strobes are listed at 15 candela under UL Standard 1971 and meet 75 candela intensity on axis with
low current draw. The CH70 Chime Strobes for wall mounting only
2415W, 241575W, 2430W, 2475W and 24110W. The CH90 Chime Strobes for ceiling mounting only
are available with a choice of five UL Listed strobe options:
are available with a choice of
two UL Listed strobe options: 2475C and 24100C. The CH90 Chime is for wall or ceiling mounting. All models are Listed for
indoor use only
: All
NOTE
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.
SPECIFICATIONS:
Models (VDC/VRMS) For Chimes (AMPS) Peak Anechoic Reverberant Candela Options
with the backboxes specified in these instructions (see Mounting Options).
CAUTIONS
Voltage Rated Average Current dBA at 10 Feet Mounting
Min Nom Max Nom Max 24VDC Min Max
and
WARNINGS
are identified by the symbol . All warnings are printed in bold capital letters.
Table 1: UL Listed Models and Ratings
* 241575W models are UL Listed at 15cd and meet 75cd on axis.
Notes:
1. Models with strobe will produce 1 flash per second over the listed voltage range.
2. All models are UL Listed for indoor use with a temperature range of +32oF to +120oF (0oC to +49oC) and maximum humidity
of 85% RH.
3. Chimes must be set at maximum volume for Private Mode Fire Protective Service per UL 1638 listing requirements (see Wiring
Information Note 2).
4. Anechoic dBA is measured in an anechoic chamber with peak meter response. Reverberant dBA is rated per UL Standard 464.
5. The chimes produce a brief inrush current of 0.100 Amps with filtered DC input (0.140 Amps with full-wave-rectified (VRMS)
input) with a time duration of 100 milliseconds.
The UL Listed "Rated Input Voltage" is 20.0-31.0VDC using either filtered (DC) input or unfiltered full-wave-rectified (VRMS)
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 1997, 1998 Wheelock, Inc. All rights reserved.
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Sheet 1 of 8
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.
Table 2: Wall and Ceiling Mount Mount Strobe Current Requirements (AMPS)
Rated Average Current *
Voltage 2415W 241575W 2430W 2475W 24110W 2475C 24100C
Voltage 2415W 241575W 2430W 2475W 24110W 2475C 24100C
20.0VDC .169 .205 .240 .400 .495 0.690 0.780
24.0VDC .173 .210 .250 .400 .510 0.700 0.790
31.0VDC .178 .215 .255 .425 .525 0.710 0.800
20.0VRMS .173 .210 .250 .410 .510 0.700 0.790
24.0VRMS .178 .215 .255 .410 .525 0.710 0.800
31.0VRMS .182 .220 .265 .435 .535 0.720 0.810
Rated Inrush Current ***
Voltage 2415W 241575W 2430W 2475W 24110W 2475C 24100C
20.0VDC .135 .135 .135 .135 .135 0.135 0.135
24.0VDC .165 .165 .165 .165 .165 0.165 0.165
31.0VDC .210 .210 .210 .210 .210 0.210 0.210
20.0VRMS .175 .175 .175 .175 .175 0.175 0.175
24.0VRMS .210 .210 .210 .210 .210 0.210 0.210
31.0VRMS .275 .275 .275 .275 .275 0.275 0.275
W = Wall C = Ceiling
* Rated Average Current is measured using mean value.
** The time duration for the peak current is 100 microseconds.
*** The time duration for the inrush current is 4 milliseconds.
WARNING: MAKE SURE THAT THE TOTAL AVERAGE CURRENT, TOTAL PEAK CURRENT AND TOTAL INRUSH
CURRENT REQUIRED BY ALL APPLIANCES THAT ARE CONNECTED TO THE SYSTEM’S PRIMARY AND SECONDARY
POWER SOURCES, NAC CIRCUITS, SM AND DSM SYNC MODULES 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, peak and inrush currents: Use Table 2 to determine the highest value of “Rated Average Current”
for an individual chime strobe (across the expected operating voltage range of the chime strobe), and the highest value of “Rated
Inrush Current” or “Rated Peak Current” (whichever is higher) of an individual chime strobe (across the expected voltage range of the
chime strobe), then multiply these values by the total number of chime strobes; be sure to add the currents for the chimes and any
other appliances, including audible signaling appliances, powered by the same source and include any required safety factors.
If the inrush current or peak current exceeds the power supplies’ inrush 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
Chime Strobes are not designed to be used on coded systems in which the applied voltage is cycled on and off.
1. The chimes are factory set in single stroke (SS) mode. They can be changed to vibrating (VIB) mode before wiring the appliance
with the provided jumper. Refer to PC Board layout shown in Figure 4. (SS = single stroke, VIB = vibrating)
SINGLE STROKE OPERATION
: The minimum input pulse duration must be at least 160 milliseconds "on" time and 160
milliseconds "off" time. The chime will only operate once each time it is pulsed. This mode is recommended for coded systems.
VIBRATING OPERATION
: Continuous input voltage must be applied to the chime to activate the chime at one second intervals.
2. The volume and tone controls have been adjusted at the factory to insure maximum dBA output. However, once the mode is
selected, the installer may want to fine tune the appliance to better suit the application.
Figure 1.
Chime Appliance and Strobe Appliance operate independently.
Recommended for coded systems where the chime is set on single
stroke (SS) mode and is cycled on and off while the strobe flashes
continuously.
Figure 2.
Chime Appliance and Strobe Appliance operate in unison. Red
and black wires are supplied. The chime must be set for vibrating
mode (VIB). (Use of Sync Module is not recommended in this
wiring option)
* Refer to Sync Module instruction sheets SM (P83123) and DSM (P83177) for additional information.
Figure 3.
1. Chime Strobe models have 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.
2. Break all in-out wire runs on supervised circuits to assure integrity of circuit
supervision as shown in Figure 3. The polarity shown in the wiring diagrams is for
operation of the appliances. The polarity is reversed by the FACP during supervision.
GROUNDING: Install the appliance to a grounded backbox (Per NFPA 70, the National Electrical Code) using the lockwashers
provided in hardware bag under the head of each mounting screw for the appliance.
P83599 C
Sheet 4 of 8
Figure 4: PC Board Layout
MOUNTING OPTIONS:
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.
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.
P83599 C
Sheet 5 of 8
MOUNTING PROCEDURES:
CAUTION: 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.
1. Conduit entrances to the backbox should be selected to provide sufficient wiring clearance for the installed product.
2. Do not pass additional wires (used for other than the signaling appliance) through the backbox. Such additional wires could
result in insufficient wiring space for the signaling appliance.
3. Mounting hardware for each mounting option is supplied.
4. When terminating field wires, do not use more lead length than required. Excess lead length could result in insufficient wiring
space for the signaling appliance.
5. All models can be flush mounted to a 4” square by 1-1/2” deep backbox with a 4” square 2-1/8 extension ring (Figure A or B).
CH70 models can also be surface mounted to a Surface Backbox (Figure C or D).
6. Use care and proper techniques to position the field wires in the backbox so that they use minimum space and produce minimum
stress on the product. This is especially important for stiff, heavy gauge wires and wires with thick insulation or sheathing.
7. CH70/90 models have an integrated Chime Mounting Plate.
8. The Chime Mounting Plate must be oriented correctly when it is mounted to the backbox. Turn the Chime Mounting Plate so
that the arrow above the words “Horizontal Strobe” or “Top” points to the top side of the Chime Mounting Plate.
9. Mount the Chime Mounting Plate to the backbox with the Cone Protector on; after the Chime Mounting Plate is attached to the
backbox, remove the Cone Protector before installing the grille. Next attach the grille to the Chime Mounting Plate and attach
with (2) screws.
WARNING: WHEN INSTALLING STROBES IN AN OPEN OFFICE OR OTHER AREAS CONTAINING
PARTITIONS OR OTHER VIEWING OBSTRUCTIONS, SPECIAL ATTENTION SHOULD BE GIVEN TO THE
LOCATION OF THE STROBES SO THAT THEIR OPERATING EFFECT CAN BE SEEN BY ALL INTENDED
VIEWERS, WITH THE INTENSITY, NUMBER, AND TYPE OF STROBES BEING SUFFICIENT TO MAKE SURE
THAT THE INTENDED VIEWER IS ALERTED BY PROPER ILLUMINATION, REGARDLESS OF THE VIEWER'S
ORIENTATION. FAILURE TO DO SO COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR
DEATH TO YOU AND/OR OTHERS.
CH70-24110W Chime Strobe models are Listed for use in sleeping or non-sleeping areas when installed in accordance with
appropriate NFPA Standards and the Authority Having Jurisdiction.
This control unit does not generate a temporal pattern signal. If the distinctive three-pulse temporal pattern fire alarm evacuation
signal (or total evacuation) in accordance with NFPA 72, 1993 Edition is required, the control unit must be used with appliances that
can generate the temporal pattern signal. Refer to Manufacturer’s instruction manual for details.
P83599 C
Sheet 6 of 8
WARNING: INSTALLATION OF WHEELOCK 110 CANDELA STROBE PRODUCTS IN SLEEPING AREAS
SHOULD BE WALL MOUNTED AT LEAST 24" BELOW THE CEILING AS FOLLOWS: (1) THE ON-AXIS
(DIRECTLY IN FRONT OF LENS) LIGHT OUTPUT SHOULD BE DIRECTED AT THE EYE-LIDS OF THE SLEEPING
PERSON, E.G. PILLOW END OF BED, BED HEAD; (2) NO PART OF THE BED SHALL BE MORE THAN SIXTEEN
(16) FEET FROM THE STROBE NOTIFICATION APPLIANCE. INSTALLERS MUST ADVISE OWNERS AND
OPERATORS OF BUILDINGS WITH SLEEPING OCCUPANTS, E.G. HOTELS AND MOTELS, TO WARN GUESTS,
RESIDENTS AND EMPLOYEES TO NOT MOVE THE BED LOCATION TO A POSITION VIOLATING POINTS (1)
AND (2) ABOVE OR SERIOUS INJURY AND/OR LOSS OF LIFE MAY OCCUR DURING A FIRE EMERGENCY.
WARNING: A SMALL POSSIBILITY EXISTS THAT THE USE OF MULTIPLE STROBES WITHIN A PERSON'S
FIELD OF VIEW, UNDER CERTAIN CIRCUMSTANCES, MIGHT INDUCE A PHOTO-SENSITIVE RESPONSE IN
PERSONS WITH EPILEPSY. STROBE REFLECTIONS IN A GLASS OR MIRRORED SURFACE MIGHT ALSO
INDUCE SUCH A RESPONSE. TO MINIMIZE THIS POSSIBLE HAZARD, WHEELOCK STRONGLY RECOMMENDS
THAT THE STROBES INSTALLED SHOULD NOT PRESENT A COMPOSITE FLASH RATE IN THE FIELD OF VIEW
WHICH EXCEEDS FIVE (5) Hz AT THE OPERATING VOLTAGE OF THE STROBES. WHEELOCK ALSO
STRONGLY RECOMMENDS THAT THE INTENSITY AND COMPOSITE FLASH RATE OF INSTALLED STROBES
COMPLY WITH LEVELS ESTABLISHED BY APPLICABLE LAWS, STANDARDS, REGULATIONS, CODES AND
GUIDELINES.
NOTE: NFPA 72/ANSI 117.1 conform to ADAAG Equivalent Facilitation Guidelines in using fewer, higher intensity strobes within
the same protected area.
CAUTION: Check the installation instructions of the manufacturers of other equipment used in the system for any guidelines or
restrictions on wiring and/or locating Notification Appliance Circuits (NAC) and notification appliances. Some system
communication circuits and/or audio circuits, for example, may require special precautions to assure electrical noise immunity (e.g.
audio crosstalk).
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
1) Reorient or relocate the receiving antenna, 2) Increase the separation between the equipment and receiver, 3) Connect the
equipment into an outlet on a circuit different from that to which the receiver is connected, and 4) Consult the dealer or an
experienced radio/TV technician for help.
ANY MATERIAL EXTRAPOLATED FROM THIS DOCUMENT OR FROM WHEELOCK MANUALS OR OTHER
DOCUMENTS DESCRIBING THE PRODUCT FOR USE IN PROMOTIONAL OR ADVERTISING CLAIMS, OR FOR
ANY OTHER USE, INCLUDING DESCRIPTION OF THE PRODUCT'S APPLICATION, OPERATION, INSTALLATION
AND TESTING IS USED AT THE SOLE RISK OF THE USER AND WHEELOCK WILL NOT HAVE ANY LIABILITY
FOR SUCH USE.
IMPORTANT: READ SEPARATE "GENERAL INFORMATION" SHEET FOR INFORMATION ON THE
PLACEMENT, LIMITATIONS, INSTALLATION, FINAL CHECKOUT, AND PERIODIC TESTING OF NOTIFICATION
APPLIANCES.
P83599 C
Sheet 7 of 8
Limited Warranty
Wheelock products must be used within their published specifications and must be PROPERLY specified, applied, installed, operated,
maintained and operationally tested in accordance with these instructions at the time of installation and at least twice a year or more
often and in accordance with local, state and federal codes, regulations and laws. Specification, application, installation, operation,
maintenance and testing must be performed by qualified personnel for proper operation in accordance with all of the latest National
Fire Protection Association (NFPA), Underwriters' Laboratories (UL), Underwriters’ Laboratories of Canada (ULC), National
Electrical Code (NEC), Occupational Safety and Health Administration (OSHA), local, state, county, province, district, federal and
other applicable building and fire standards, guidelines, regulations, laws and codes including, but not limited to, all appendices and
amendments and the requirements of the local authority having jurisdiction (AHJ). Wheelock products when properly specified,
applied, installed, operated, maintained and operationally tested as provided above are warranted against mechanical and electrical
defects for a period of three years from date of manufacture (as determined by date code). Correction of defects by repair or
replacement shall be at Wheelock's sole discretion and shall constitute fulfillment of all obligations under this warranty. THE
FOREGOING LIMITED WARRANTY SHALL IMMEDIATELY TERMINATE IN THE EVENT ANY PART NOT FURNISHED
BY WHEELOCK IS INSTALLED IN THE PRODUCT. THE FOREGOING LIMITED WARRANTY SPECIFICALLY
EXCLUDES ANY SOFTWARE REQUIRED FOR THE OPERATION OF OR INCLUDED IN A PRODUCT. WHEELOCK
MAKES NO REPRESENTATION OR WARRANTY OF ANY OTHER KIND, EXPRESS, IMPLIED OR STATUTORY
WHETHER AS TO MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR ANY OTHER MATTER.
USERS ARE SOLELY RESPONSIBLE FOR DETERMINING WHETHER A PRODUCT IS SUITABLE FOR THE USER'S
PURPOSES, OR WHETHER IT WILL ACHIEVE THE USER'S INTENDED RESULTS. THERE IS NO WARRANTY AGAINST
DAMAGE RESULTING FROM MISAPPLICATION, IMPROPER SPECIFICATION, ABUSE, ACCIDENT OR OTHER
OPERATING CONDITIONS BEYOND WHEELOCK'S CONTROL.
SOME WHEELOCK PRODUCTS CONTAIN SOFTWARE. WITH RESPECT TO THOSE PRODUCTS, WHEELOCK DOES
NOT WARRANTY THAT THE OPERATION OF THE SOFTWARE WILL BE UNINTERRUPTED OR ERROR-FREE OR
THAT THE SOFTWARE WILL MEET ANY OTHER STANDARD OF PERFORMANCE, OR THAT THE FUNCTIONS OR
PERFORMANCE OF THE SOFTWARE WILL MEET THE USER'S REQUIREMENTS. WHEELOCK SHALL NOT BE LIABLE
FOR ANY DELAYS, BREAKDOWNS, INTERRUPTIONS, LOSS, DESTRUCTION, ALTERATION, OR OTHER PROBLEMS
IN THE USE OF A PRODUCT ARISING OUT OF OR CAUSED BY THE SOFTWARE.
THE LIABILITY OF WHEELOCK ARISING OUT OF THE SUPPLYING OF A PRODUCT, OR ITS USE, WHETHER ON
WARRANTIES, NEGLIGENCE, OR OTHERWISE, SHALL NOT IN ANY CASE EXCEED THE COST OF CORRECTING
DEFECTS AS STATED IN THE LIMITED WARRANTY AND UPON EXPIRATION OF THE WARRANTY PERIOD ALL
SUCH LIABILITY SHALL TERMINATE. WHEELOCK IS NOT LIABLE FOR LABOR COSTS INCURRED IN REMOVAL,
REINSTALLATION OR REPAIR OF THE PRODUCT BY ANYONE OTHER THAN WHEELOCK OR FOR DAMAGE OF ANY
TYPE WHATSOEVER, INCLUDING BUT NOT LIMITED TO, LOSS OF PROFIT OR INCIDENTAL OR CONSEQUENTIAL
DAMAGES. THE FOREGOING SHALL CONSTITUTE THE SOLE REMEDY OF THE PURCHASER AND THE EXCLUSIVE
LIABILITY OF WHEELOCK.
IN NO CASE WILL WHEELOCK'S LIABILITY EXCEED THE PURCHASE PRICE PAID FOR A PRODUCT.
Limitation of Liability
WHEELOCK'S LIABILITY ON ANY CLAIM OF ANY KIND, INCLUDING NEGLIGENCE AND BREACH OF WARRANTY,
FOR ANY LOSS OR DAMAGE RESULTING FROM, ARISING OUT OF, OR CONNECTED WITH THIS CONTRACT, OR
FROM THE MANUFACTURE, SALE, DELIVERY, RESALE, REPAIR OR USE OF ANY PRODUCT COVERED BY THIS
ORDER SHALL BE LIMITED TO THE PRICE APPLICABLE TO THE PRODUCT OR PART THEREOF WHICH GIVES RISE
TO THE CLAIM. WHEELOCK'S LIABILITY ON ANY CLAIM OF ANY KIND SHALL CEASE IMMEDIATELY UPON THE
INSTALLATION IN THE PRODUCT OF ANY PART NOT FURNISHED BY WHEELOCK. IN NO EVENT SHALL
WHEELOCK BE LIABLE FOR ANY CLAIM OF ANY KIND UNLESS IT IS PROVEN THAT OUR PRODUCT WAS A
DIRECT CAUSE OF SUCH CLAIM. FURTHER, IN NO EVENT, INCLUDING IN THE CASE OF A CLAIM OF
NEGLIGENCE, SHALL WHEELOCK BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. SOME STATES
DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE
PRECEDING LIMITATION MAY NOT APPLY TO ALL PURCHASERS.
10/98
P83599 C
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