Bosch CH9024MCCHFW CH90-24MCCH-FW High-candela, Ceilingmount Chime Strobe (white)

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Item code: CH9024MCCHFW
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    The Wheelock CH90-24MCCH-FW High‑candela, Ceiling‑mount Chime Strobe provides low current draw, choice of single-strike or vibrating operation, adjustable sound level, chime tone adjustable from 800 Hz to 1200 Hz, and choice of two light output intensities (115 cd or 177 cd) in one unit. The strobes can be synchronized using SM (single) or DSM (dual) modules. There is also an attached mounting plate for easy indoor installation on a variety of electrical boxes.
    Sound Mode Settings
    The chimes are factory set in single‑stroke mode. They can be changed to vibrating mode before wiring by moving a jumper.
    Single‑Stroke Mode
    The minimum input pulse duration must be at least
    160 ms on and 160 ms off. The chime only operates once
    each time it is pulsed. Use this mode for coded systems.
    Vibrating Mode
    Apply continuous input voltage to the chime to activate
    the chime at 1 sec intervals.
    Strobe Settings
    The unit comes set at 177 cd. Change the setting using
    a screwdriver in the slot in the unit's base (setting is
    visible on indicator plate within the lens).
    Volume and Tone Settings
    The volume and tone controls are factory set to ensure
    maximum dBA output; however, the volume and tone
    can be tuned to suit a particular application. Take
    appropriate measurements to ensure the volume meets
    the listing requirements for private mode fire protective
    service per UL464.

    CH90-24MCCH-FW High-candela, Ceilingmount Chime Strobe (white)

    • Low current draw with temperature compensation to reduce power consumption and wiring costs

    • 24 VDC, filtered or FWR

    • Color : White

    • Adjustable volume and tone

    • Single‑stroke or vibrating tone

    • Selectable strobe intensities of 115 cd or 177 cd

    • Strobes flash once per second over the regulated voltage range

    Technical Specifications
    Environmental Considerations
    Relative Humidity: Up to 85%, non‑condensing
    Temperature (Operating): +32°F to +120°F (0°C to +49°C)
    Chime Ratings at 24 VDC
    Reverberant dBA at 10 ft (3 m) per UL464: Maximum: 58 dBA, Minimum: 52 dBA
    Mechanical Properties
    Dimensions (diameter x D): 7.25 in. x 2.9375 in. (18.4 cm x 7.5 cm)
    Material: Molded plastic enclosure with Xenon flashtube and LexanŽ lens
    Power Requirements
    Chime Current (maximum): 22 mA
    Voltage (input) 24 VDC nominal, filtered or FWR
    Strobe Current (maximum):

    • 115 cd: VDC: 300 mA, FWR: 455 mA

    • 177 cd: VDC: 420 mA, FWR: 645 mA

    LexanŽ is a registered trademark of General Electric Corporation, USA, in the
    United States and other countries.

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