1. Introduction
The zaMel GNS-921/N is an electromechanical two-tone chime designed for indoor use. It operates on 230V AC and produces a classic 'Bim-Bam' sound. This wall-mountable chime features a durable plastic casing and an integrated pull switch for convenient sound deactivation, a useful feature for maintaining quiet environments. The chime sounds once per activation, regardless of how long the doorbell button is pressed.
Front view of the zaMel GNS-921/N Bim-BAM Two-Tone Chime, showing its white casing and the pull switch extending from the bottom.
2. Safety Information
- This device operates on 230V AC. Installation should only be performed by a qualified electrician or a person with appropriate electrical knowledge to prevent electric shock.
- Always disconnect power at the main circuit breaker before attempting any installation, maintenance, or wiring.
- The chime is designed for indoor use only (IP20 protection rating). Do not expose to moisture, rain, or extreme temperatures.
- Do not open the casing unless specifically instructed for maintenance or repair. There are no user-serviceable parts inside.
- Ensure all connections are secure and properly insulated.
3. Product Overview
The zaMel GNS-921/N chime consists of a white plastic housing containing the electromechanical striking mechanism and a pull switch for deactivation. It is designed for wall mounting.
Front-side view, highlighting the curved design.
Side view, showing the depth and pull switch.
Back view, revealing mounting points and internal structure.
Technical diagram illustrating the dimensions (136mm height, 106mm width, 42mm depth) of the chime.
4. Setup and Installation
The zaMel GNS-921/N chime is designed for straightforward wall-mount installation. An installation graphic is typically included in the product packaging. Ensure power is disconnected before proceeding.
4.1. Required Tools (Not Included)
- Screwdriver
- Drill (if mounting to masonry)
- Wall plugs/anchors (if needed)
- Wire strippers
- Voltage tester
4.2. Installation Steps
- Disconnect Power: Turn off the main power supply to the circuit where the chime will be installed at your electrical panel. Verify with a voltage tester that the power is off.
- Choose Location: Select an indoor wall location for the chime, ensuring it is within reach of the existing 230V AC wiring for your doorbell system.
- Mark Mounting Points: Use the chime's backplate as a template to mark the screw holes on the wall.
- Drill Holes: Drill pilot holes at the marked locations. Insert wall plugs/anchors if necessary for secure mounting.
- Wire Connections: Connect the 230V AC power supply wires to the designated terminals inside the chime. Ensure correct polarity if specified (though for AC, it's typically live and neutral). Refer to the installation graphic for precise wiring diagrams.
- Mount Chime: Secure the chime to the wall using appropriate screws.
- Restore Power: Once the chime is securely mounted and all wiring is complete and checked, restore power at the main circuit breaker.
- Test Operation: Press your doorbell button to test the chime's functionality.
Icon illustrating the chime's wall-mount installation method.
5. Operating Instructions
5.1. Sound Activation
When a compatible 230V doorbell button is pressed, the chime will produce its two-tone 'Bim-Bam' sound. The sound is generated once per activation. To trigger the chime again, release the doorbell button and press it once more.
Icon symbolizing the chime's sound output.
5.2. Sound Deactivation (Pull Switch)
The zaMel GNS-921/N features an integrated pull switch located at the bottom of the unit. To temporarily deactivate the chime's sound, gently pull the switch cord downwards. To reactivate the sound, pull the cord again. This function is useful for periods when silence is preferred, such as during naps for young children or important meetings.
6. Maintenance
The zaMel GNS-921/N chime requires minimal maintenance.
- Cleaning: Wipe the exterior of the chime with a soft, dry cloth. Do not use abrasive cleaners, solvents, or excessive moisture, as these can damage the plastic casing or internal components.
- Inspection: Periodically check the pull switch cord for any signs of wear or damage. Ensure the chime remains securely mounted to the wall.
- No Internal Servicing: The internal components are not user-serviceable. Do not attempt to open the unit for repair.
7. Troubleshooting
If you experience issues with your zaMel GNS-921/N chime, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chime does not sound | No power supply Pull switch is in 'off' position Faulty doorbell button Loose wiring connection | Check circuit breaker and power supply Pull the switch cord to activate the sound Test or replace doorbell button Check all wiring connections (ensure power is off first) |
| Sound is weak or distorted | Internal mechanism obstruction Voltage fluctuation | Ensure no foreign objects are inside (do not open unit) Consult an electrician to check voltage stability |
| Pull switch not working | Switch mechanism jammed or damaged | Gently try to operate the switch. If still unresponsive, contact support. |
8. Specifications
- Brand: zaMel
- Model: GNS-921/N
- Type: Electromechanical Two-Tone Chime
- Operating Voltage: 230V AC
- Sound Level: Approximately 85 dB
- Sound Type: 'Bim-Bam' (two-tone)
- Material: Plastic casing, metal internal components
- Color: White
- Dimensions (L x W x H): 10.6 x 4.2 x 13.6 cm (4.17 x 1.65 x 5.35 inches)
- Weight: 260 grams (0.57 lbs)
- Protection Rating: IP20 (Indoor use only)
- Special Features: Integrated pull switch for sound deactivation
- Batteries Required: No
Icon indicating the chime's electrical power requirement (230V AC).
9. Warranty and Support
For information regarding warranty coverage, technical support, or spare parts availability for your zaMel GNS-921/N chime, please refer to the documentation provided with your purchase or contact zaMel customer service directly. Contact details can typically be found on the manufacturer's website or on the product packaging.
