1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the Sodeca CJBD-1919/4M-1/5 Acoustic Insulated Cased Fan. Please read this manual thoroughly before attempting to install or operate the unit.
The Sodeca CJBD-1919/4M-1/5 is an acoustically insulated ventilation unit designed for various industrial applications. It features double-suction fans from the CBD series, housed in a galvanized steel sheet structure with thermal and acoustic insulation.
Key Features:
- Acoustically insulated casing for reduced noise levels.
- Double-suction fans with forward-curved galvanized steel sheet impellers.
- Galvanized steel sheet structure with thermal and acoustic insulation.
- Integrated thermal protection for the motor.
- IP54 protection rating for the motor.
- Suitable for air temperatures from -20 °C to +60 °C.
- Anti-corrosion finish.

Figure 1: Sodeca CJBD-1919/4M-1/5 Acoustic Insulated Cased Fan. This image shows the main view of the fan unit, highlighting its robust, galvanized steel casing and the visible fan inlet.
2. Safety Instructions
Always observe the following safety precautions to prevent injury and damage to the unit:
- Ensure the power supply is disconnected before any installation, maintenance, or repair work.
- Installation and electrical connections must be performed by qualified personnel in accordance with local and national electrical codes.
- Do not operate the fan if any part is damaged or missing.
- Ensure proper grounding of the unit.
- Keep hands, loose clothing, and tools away from moving parts.
- Do not block air inlets or outlets during operation.
- The unit is designed for transporting air within the specified temperature range (-20 °C to +60 °C). Do not use it for flammable, explosive, or corrosive gases.
3. Setup and Installation
Proper installation is crucial for the fan's performance and longevity.
3.1 Unpacking and Inspection
- Carefully remove the unit from its packaging.
- Inspect the fan for any signs of shipping damage. Report any damage to the carrier immediately.
- Verify that all components listed in the packing list are present.
3.2 Mounting
- The fan should be mounted on a stable, level surface capable of supporting its weight (approximately 22.5 kg).
- Ensure adequate clearance around the unit for airflow and future maintenance access.
- Use appropriate vibration isolators if noise or vibration transmission is a concern.
- Connect the fan to the ductwork using flexible connectors to minimize vibration transmission.
3.3 Electrical Connection
- Before connecting, ensure the power supply matches the fan's requirements (220-240V, 50Hz for single-phase; 220-240/380-415V, 50Hz for three-phase).
- All wiring must comply with local and national electrical codes.
- Connect the power cable to the terminal block inside the fan's electrical box. Use the provided cable gland for cable entry.
- Ensure proper grounding.
- Verify motor rotation direction. If incorrect, consult the wiring diagram or reverse two phases for three-phase motors.

Figure 2: Technical drawing of the Sodeca CJBD-1919/4M-1/5 fan. This diagram illustrates the various dimensions and structural components of the fan, crucial for planning installation and ductwork connections.
4. Operating Instructions
Once installed and electrically connected, the fan is ready for operation.
4.1 Initial Start-up
- Before applying power, ensure all safety guards are in place and no foreign objects are near the fan's inlet or outlet.
- Turn on the power supply to the unit.
- Observe the fan for any unusual noises, vibrations, or smells. If any are detected, immediately shut off power and investigate the cause.
- Confirm the correct direction of impeller rotation.
4.2 Normal Operation
- The fan is designed for continuous operation within its specified parameters.
- Monitor the fan periodically for consistent performance and absence of abnormal sounds.
- Avoid operating the fan with severely restricted airflow, as this can lead to overheating and reduced lifespan.
5. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your Sodeca fan. Always disconnect power before performing any maintenance.
5.1 Routine Checks (Monthly)
- Visual Inspection: Check for any visible damage, loose connections, or excessive dust accumulation.
- Noise and Vibration: Listen for any unusual noises or feel for excessive vibrations during operation.
- Airflow: Verify that the airflow remains consistent and unobstructed.
5.2 Cleaning (Quarterly or as needed)
- Disconnect Power: Ensure the unit is completely de-energized.
- Clean Impeller and Casing: Carefully clean any dust or debris from the impeller blades and the interior of the casing. A soft brush or vacuum cleaner can be used. Avoid using water or harsh chemicals.
- Check Air Filters (if applicable): If the system includes air filtration modules (e.g., MF, ME, MA modules), inspect and clean or replace filters as per their specific instructions.
5.3 Bearings
The motor is equipped with ball bearings. These are typically sealed and lubricated for life, requiring no routine lubrication. If unusual bearing noise is detected, professional service may be required.
6. Troubleshooting
This section provides solutions to common issues. For problems not listed here, contact qualified service personnel.
| Problem | Possible Cause | Solution |
|---|---|---|
| Fan does not start | No power supply Blown fuse/tripped breaker Motor thermal overload tripped Incorrect wiring | Check power connection Replace fuse/reset breaker Allow motor to cool, check for obstructions Verify wiring against diagram |
| Low airflow | Blocked inlet/outlet Dirty impeller Incorrect motor rotation Leaky ductwork | Clear obstructions Clean impeller (see Maintenance) Check wiring for correct rotation Seal ductwork leaks |
| Excessive noise or vibration | Loose mounting bolts Impeller imbalance (dirt/damage) Bearing wear Foreign object in fan | Tighten all mounting hardware Clean impeller, inspect for damage Contact qualified service personnel Inspect and remove foreign objects (disconnect power first!) |
| Motor overheating | Restricted airflow High ambient temperature Incorrect voltage Motor overload | Check for obstructions, clean fan Ensure adequate ventilation around unit Verify power supply voltage Reduce load if possible, check for binding parts |
7. Specifications
Technical specifications for the Sodeca CJBD-1919/4M-1/5 Acoustic Insulated Cased Fan.
| Attribute | Value |
|---|---|
| Model Number | CJBD-1919/4M-1/5 (Reference: 1009280) |
| Brand | Sodeca |
| Dimensions (L x W x H) | 45 x 50 x 46 cm (17.7 x 19.7 x 18.1 inches) |
| Weight | 22.5 kg (49.6 lbs) |
| Voltage | 220-240 Volts (Single-phase) / 220-240/380-415 Volts (Three-phase) |
| Frequency | 50 Hz |
| Motor Protection | Integrated thermal protection, IP54 |
| Maximum Airflow | 1500 m³/h |
| Impeller Type | Forward-curved, galvanized steel sheet |
| Operating Temperature Range | -20 °C to +60 °C (-4 °F to +140 °F) |
| Casing Material | Galvanized steel sheet with thermal and acoustic insulation |
| Included Components | Industrial cased fan |
8. Warranty and Support
Information regarding product warranty and customer support was not available in the provided product data. Please refer to your purchase documentation or contact Sodeca directly for details on warranty coverage and technical assistance.
For spare parts availability, the provided information states "Information unavailable on spare parts". Please contact the manufacturer or your supplier for spare parts inquiries.