There are significant differences between HRV fresh air systems and air conditioners in terms of functional positioning and working principles. The following 

are the core differences and synergistic relationships between the two:

1. Core function differences

‌HRV fresh air system‌

‌External circulation ventilation‌: By introducing fresh air from the outside and exhausting indoor dirty air, 24-hour air replacement is achieved

‌Heat recovery‌: Using energy recovery devices (such as heat exchangers) to retain heat/cold in the exhaust air and reduce air conditioning energy consumption

‌Air purification‌: Filter PM2.5, pollen and other pollutants through multi-layer filters to reduce formaldehyde and carbon dioxide concentrations

‌

Air conditioning‌

‌Temperature regulation‌: The core function is cooling or heating to maintain a constant indoor temperature

‌Internal circulation is the main‌: Most air conditioners only circulate indoor air and cannot introduce fresh air. Long-term use can easily lead to a decrease in indoor air quality

2. Typical application scenarios

‌HRV fresh air system‌:

Spaces that require long-term sealing (such as heating in winter/cooling in summer)

Poor air quality or high concentration of oxygen Air environment (such as office, school)

‌Air conditioning‌:

Scenarios that require precise temperature control (such as laboratories, hospitals)

Short-term cooling/heating requirements (such as family living rooms, conference rooms, etc.)

3. Installation and maintenance

‌HRV fresh air system‌:

Ventilation ducts need to be arranged, and the installation space requirement is large

Regularly replace the filter (3-6 months) and clean the heat exchanger

‌Air conditioning‌:

Indoor and outdoor units need to be installed, and the pipeline layout is complex

Maintenance focuses on cleaning the filter and checking the refrigerant

4. Cooperative use suggestions

HRV and air conditioning can complement each other

‌Energy-saving scenario‌: HRV recovers the heat/coldness generated by the air conditioner and reduces the energy consumption of the air conditioner

‌Healthy scenario‌: The air conditioner adjusts the temperature, and HRV ensures the freshness of the air to avoid "air conditioning disease"

‌Function superposition‌: Some high-end air conditioners integrate fresh air modules, but the ventilation efficiency is lower than that of professional HRV systems