PTC Heaters and HVAC Heat Dissipation Solutions | Fengheng Technology
Fengheng Technology provides professional heat dissipation solutions for PTC heaters and the HVAC industry. Its products are widely used in PTC heaters, PTC fan heaters, heat pumps, air source water heaters, fresh air systems, central air conditioning, air curtains and other equipment, meeting the stringent requirements of HVAC equipment for high air pressure, high temperature resistance and long service life.
I. Four Core Pain Points of PTC Heaters and HVAC Heat Dissipation
Pain Point 1: The High-Temperature Environment of PTC Heaters Tests the Fan
Phenomenon:The surface temperature of a PTC heater can reach over 200°C, causing ordinary fans to deform and fail after prolonged exposure to heat.
root cause:The fan material is not heat-resistant enough, causing the fan blades to deform and the bearing lubricant to evaporate under high temperatures.
Industry data:The outlet temperature of the PTC heater can reach 80-120℃, and the fan needs to work in this environment for a long time.
Pain Point 2: The need for high air pressure in HVAC systems
Phenomenon:Fresh air systems and ducted air conditioners have high air resistance, while ordinary fans have insufficient air pressure and short air delivery distance.
root cause:When selecting a fan, only the air volume is considered, while the air pressure index is ignored.
Industry feedback:The contractor reported that "there is no airflow at the terminal air vents of the fresh air system, and the air pressure is insufficient."
Pain Point 3: Reliability Requirements for 24/7 Continuous Operation
Phenomenon:Heat pumps, air source water heaters, and other equipment operate year-round, and insufficient fan life can cause equipment downtime.
root cause:Cheap oil-bearing fans have a lifespan of only 10,000 to 20,000 hours
Industry data:Heat pumps are designed to last 10-15 years, while original factory fans often fail after 3-5 years.
Pain Point 4: Waterproof and dustproof requirements for outdoor installation
Phenomenon:The fans of central air conditioning outdoor units and heat pump outdoor units fail after water or dust gets inside.
root cause:Use a regular fan instead of an IP protection-rated fan.
Industry Standards:Outdoor HVAC equipment typically requires IP54, IP55 or higher protection ratings.
II. Comparison Table of PTC Heaters and HVAC Equipment Fan Solutions
| Equipment type | Application scenarios | Fan position | Original factory specifications | Frequently Asked Questions | Fengheng Upgrade Recommendation | Reasons for upgrading | PTC heater/fan heater | Electric heaters, fan heaters | air vent | 60x60x25mm / 80x80x25mm 220V AC | Fan deformation under high temperature environment | FH6025 / FH8025 AC High Temperature Resistant Version | Temperature resistant to 120℃, with reinforced fan blade design. |
|---|---|---|---|---|---|---|
| Heat pump/air source water heater | Gree, Midea, and Zhongguang Outes | Condenser heat dissipation | 80x80x25mm / 120x120x38mm 220V AC | Bearing damage from prolonged operation | FH8025 / FH12038 AC Double Ball Version | Lifespan 50,000 hours |
| Fresh air system/Heat exchanger | Panasonic, Honeywell, Broad Group | Fan | 120x120x38mm / 150x150x50mm 220V AC | Insufficient air pressure, no airflow at the terminal air outlet | FH12038 / FH15050 AC High-Pressure Version | High air pressure design, long air delivery distance |
| Gree, Midea, Daikin | Electrical control box/condenser heat dissipation
| Waterproof and dustproof for outdoor environments
| FH6025 / FH8025 / FH12038 IP55 version
| IP55 protection, strong weather resistance
| | ||
| Air curtain machine/air curtain | .— | air vent
| Air volume decreases over long-term operation
| FH15050 / FH17251 AC ball bearing version
| Stable airflow and extended lifespan
| |
III. Quick Reference Table for PTC Heaters and HVAC Heat Dissipation Solutions
| Equipment type | Heat dissipation requirements | Recommended Model | Core parameters | PTC heater | High temperature heat dissipation | FH6025 / FH8025 AC High Temperature Resistant Version | AC 110V/220V, temperature resistant 120℃, double ball bearing. |
|---|---|---|---|
| Heat pump/air source water heater | Continuous operation heat dissipation | FH8025 / FH12038 AC Double Ball Version | AC 110V/220V, dual ball bearing, 50,000 hours |
| Fresh air system | High-pressure air supply | FH12038 / FH15050 AC High-Pressure Version | AC 110V/220V, high wind pressure, double ball bearing. |
| air curtain machine | High-volume air supply | FH15050 / FH17251 AC ball bearing version | AC 110V/220V, high airflow, dual ball bearing. |
IV. Key Design Considerations for PTC Heaters and HVAC Heat Dissipation
1. High-Temperature Environment Design for PTC Heaters
- The fan needs to withstand temperatures of ≥100℃; metal fan blades or high-temperature resistant plastics are recommended.
- High-temperature lubricating oil is used in bearings to prevent evaporation and drying.
- The motor coil uses high-temperature resistant enameled wire.
2. HVAC system air pressure design
- Fresh air system: air pressure ≥10mmH₂O, ensuring air supply distance
- Ductless air conditioner: air pressure ≥15mmH₂O, overcoming duct resistance
- It is recommended to use centrifugal fans or high-pressure axial flow fans.
3. Outdoor protection requirements
- Protection rating: IP54/IP55, dustproof and splashproof
- Weather resistance: UV resistant, resistant to high and low temperatures -30℃ to +70℃
- Corrosion prevention: Coastal areas need to strengthen corrosion prevention treatment.
V. Frequently Asked Questions (FAQ)
Q1: Why do PTC heater fans break down easily?
A: The outlet temperature of a PTC heater can reach 80-120℃. Ordinary fans operating under such conditions for extended periods will experience blade deformation and bearing lubricant evaporation. The Fengheng high-temperature resistant series can withstand environments up to 120℃.
Q2: What should I do if there is no airflow at the terminal air vent of the fresh air system?
A: This indicates insufficient air pressure. Use a high-pressure fan; the Fengheng FH12038/FH15050 high-pressure series can achieve 15-20 mmH₂O, allowing for longer air delivery distances.
Q3: How long can the fan of a heat pump outdoor unit typically last?
A: Original factory AC oil-impregnated bearing fans typically last 3-5 years. Fengheng AC dual ball bearing fans can last 8-10 years.
Q4: What protection level is required for outdoor HVAC equipment?
A: At least IP54, IP55 is recommended. The Fengheng IP55 series is dustproof and water-resistant, suitable for outdoor installation.
Q5: Do you support sample testing?
A: Free sample testing is available. We can provide original fan specifications and help you find the right upgrade solution.
VI. Contact us to obtain samples
Telephone: +86 13751170802
Official website: www.szfengheng.com
We welcome inquiries and cooperation from HVAC equipment manufacturers, PTC heater manufacturers, and heat pump producers.