Introduction
This manual provides essential information for the safe and efficient use of your PTC Ceramic Air Heater. This self-regulating heating element is designed for various applications, including electric heaters, air conditioners, incubators, humidifiers, air purifiers, clothes dryers, and dehumidifiers. Please read these instructions carefully before installation and operation.
The PTC (Positive Temperature Coefficient) heater offers safety through surface insulation, quick heating, and a long service life. Its self-control temperature feature ensures stable operation and low noise.
Safety Information
- Always use the heater with a fan. The heater's power consumption is non-fixed and depends on thermal radiation/heat dissipation. Without adequate airflow, the heater may not reach its rated power and could potentially overheat if not designed with overheat protection.
- Do not allow the heater and fan to come into contact with liquid or dust. While it can be placed in a wet environment, it must not be submerged in water.
- Some heaters are equipped with overheat protection devices to prevent damage from prolonged high temperatures if the fan fails.
- During initial use, a small amount of smoke may be produced. This is normal and will disappear shortly.
- Ensure proper ventilation and heat dissipation for optimal performance and safety.
- The product's ends are fitted with PA66 high-temperature nylon brackets for insulation and mounting.
Specifications
| Feature | Detail |
|---|---|
| Model Number | JQ-76A2 |
| Rated Power | 200W / 300W (depending on variant) |
| Rated Voltage | 12V / 24V / 110V / 220V (depending on variant) |
| Dimensions (L x W x H) | 120 x 50.5 x 26 mm |
| Mounting Pitch | 100 x 43 mm |
| Mounting Hole Size | 8 x 4 mm |
| Heat Material | PTC Thermistor |
| Heat Methods | Heat radiation by air flow |
| Lead Wire Type | Silicone high temperature line |
| Lead Wire Length | 200 mm |
| Bare Wire Length | 10 mm |
| Certification | CE |
| Estimated Lifespan | 3-5 years |
Note: The heater's power consumption is not fixed; it depends on the thermal radiation and heat dissipation. Better heat dissipation will result in power closer to the rated value.
Setup and Installation
Mounting
The heater features mounting holes (8x4mm) with a pitch of 100x43mm for secure installation. The ends of the product are equipped with PA66 high-temperature nylon brackets for mounting.
Wiring Instructions
- For 12V/24V DC fan: The red wire is connected to the positive (+) terminal, and the black wire is connected to the negative (-) terminal.
- For 220V AC fan: The connection does not distinguish between neutral and live wires.
- Heater Wiring: The heater itself is AC and DC universal. The power line does not distinguish between positive and negative terminals; you can freely connect power.
Fan Requirement
The heater must work together with a fan to ensure proper heat dissipation and achieve optimal performance. Without a fan, the heater will only achieve 20%-50% of its rated power due to dry firing (lack of heat dissipation).
Operating Instructions
- Connect the heater and fan according to the wiring instructions in the "Setup" section.
- Ensure the power supply matches the rated voltage of your heater variant (12V, 24V, 110V, or 220V).
- Upon initial power-on, the PTC heater may experience an impact power, which is about 1.5 to 3 times the rated power. This will rapidly decline to the rated power and is considered normal operation.
- The surface temperature of the built-in 230°C heater chip is approximately 200°C when dry (without fan). With fan assistance, the surface temperature drops to about 120°C.
- Under optimal heater operation with fan assistance, the air temperature at 10 cm from the outlet can reach approximately 40-60°C (at an ambient temperature of 24°C).
Maintenance
- Keep the heater and fan free from dust and debris to ensure efficient airflow and heat dissipation.
- Regularly inspect wiring for any signs of wear or damage.
- Ensure the fan is operating correctly to prevent the heater from running in a dry-firing state for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater not producing enough heat. | Insufficient airflow/heat dissipation; fan not working; incorrect voltage. | Ensure a fan is operating correctly with the heater. Verify the power supply voltage matches the heater's rating. Check for obstructions to airflow. |
| Heater produces smoke on first use. | Normal initial operation. | This is expected and will dissipate quickly. Ensure good ventilation during initial use. |
| Heater power consumption is lower than rated. | Dry firing (without sufficient heat dissipation). | Ensure the heater is used with a fan and has adequate airflow. The better the heat dissipation, the closer it will operate to its rated power. |
| Heater not turning on. | No power; incorrect wiring; faulty unit. | Check power connections and ensure they are secure. Verify wiring is correct. If issues persist, contact support. |
User Tips
- For applications requiring precise temperature control, such as incubators, the self-regulating nature of the PTC heater helps maintain stable temperatures.
- When using a 12V 200W heater, note that it might be assembled from two 100W elements connected in parallel. This allows for modification to series mounting for lower power output (e.g., 50W) if needed, offering versatility.
- Be aware that some units might draw more current than their labeled wattage, especially when fan-cooled (e.g., a 200W unit might draw ~285W at 13.6V). Ensure your power supply can handle the actual load.
- If using for a small space, a 200W heater can be very effective.
- A 24V 200W heater, when supplied with 12V, may only produce about 40 watts, with an approximate resistance of 7.5 ohms. Always match voltage for optimal performance.
Warranty and Support
This product is manufactured by Shanghai Yidu Electronic Co., Ltd. For specific warranty details or technical support, please refer to the official product documentation or contact the seller directly. The estimated lifespan of the PTC heater is 3-5 years under normal operating conditions.
A user manual in PDF format is available for download: User manual (PDF).
Frequently Asked Questions (FAQ)
- Q: Are you a trading company or manufacturer?
- A: We are a professional PTC factory.
- Q: Can you customize products for different requirements?
- A: Yes, we have a professional R&D team that can customize different sizes, power, and voltage according to your specific requirements.
- Q: How long is the delivery time?
- A: Generally, it is 1-3 days if the goods are in stock. If not in stock, it is typically 5-10 days, depending on the quantity.
- Q: Do you provide samples? Is it free or extra?
- A: Yes, we can offer samples for free, but the cost of freight is not covered.
- Q: What is the temperature of the heating surface?
- A: The built-in heater chip is 230°C. When dry (without fan), the surface temperature is about 200°C. With fan assistance, the surface temperature is about 120°C.