How to control the energy consumption of HVAC system?
Release time:
2025-09-09
The dirty filter instantly increases the fan current by 5% -15%, and keeping it clean is the cheapest way to save energy.
Replace or clean the filter screen monthly
The dirty filter instantly increases the fan current by 5% -15%, and keeping it clean is the cheapest way to save energy.
Seal the air leakage of the enclosure structure
Using an infrared thermal imager to find seams, foam glue and sealing strips can reduce the air infiltration rate to ≤ 0.6 ACH50, which can reduce the cold/heat load by 7% -12%.
Install programmable or networked temperature controllers
Automatically fluctuate up and down by 2 ° C according to daily routine, saving 8% -10% annually; If connected to mobile location (geo sense away from home), the power saving rate can reach 15%.
Increase the set value by 1 ° C in summer and decrease it by 1 ° C in winter
Every 1 ° C saves about 6% -8% of energy consumption, and employees usually adapt after 3 days.
Regular deep cleaning of heat exchangers and air ducts
Dust with a thickness of 0.5 mm can reduce the heat transfer coefficient by 25%; Annual cleaning can restore 5% -9% efficiency.
Utilize nighttime ventilation and free cooling (economizer)
When the outdoor dew point is less than 12 ° C, fresh air is directly introduced and the compressor is shut down, which can save 20% -40% of refrigeration electricity during the transition season.
Install variable frequency drive (VFD) or EC fan
The air volume is proportional to the cube of the rotational speed. Reducing the rotational speed by 20% can reduce the power consumption of the fan by 50%, resulting in a comprehensive energy saving of 10% -25% throughout the year.
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