What Are The Differences between Precision Air Conditioners And Regular Air Conditioners?

Precision Air Conditioning (For Data Centers)

- Temperature: ±0.5℃～±1℃ Precise constant temperature

- Humidity: 40%–60% RH constant humidity control, accuracy ±3%~±5% RH

- Built-in humidification + dehumidification + reheating three modules

- AI server/switch chips are extremely sensitive to temperature and humidity; condensation, low temperatures, and high temperatures can cause system crashes and shorten hardware lifespan.

Standard Air Conditioner (Residential/Commercial Floor Standing/Wall-Mounted Units)

- Temperature error ±2~3℃, only provides coarse cooling/heating

- No active humidification, dehumidification relies on cooling and condensation, resulting in extremely dry indoor air in winter

- Humidity is completely uncontrollable and does not meet the operating standards for computer room equipment.

Precision Air Conditioner

Designed for continuous operation 24/7, 365 days a year, with an annual operating time exceeding 8700 hours.

- Compressor, EC fan, and heat exchanger are designed for industrial-grade loads.

- Bearings, piping, and electrical controls support continuous operation under full load year-round.

Regular Air Conditioner

Designed for intermittent use; for home use, it only runs for a few hundred hours a year.

Continuous 24/7 operation greatly increases the risk of compressor burnout, leaks, and frequent malfunctions.

Precision Air Conditioning

1. High static pressure EC stepless speed-regulating fan, adjustable airflow range 0–100%

2. In-row unit close to the server rack, short air duct, eliminating hot spots, compatible with 30–80kW ultra-high power AI server racks

3. Supports hot and cold aisle closure and hot and cold airflow isolation, preventing mixed airflow and energy waste.

4. Layered and zoned independent temperature control, each unit adjusts its load individually.

Ordinary Air Conditioning

Low air pressure, fixed air velocity, severe mixing of hot and cold air over long distances. Server rooms are prone to localized hot spots, GPU servers experience high temperature throttling and crashes, and can only support low-density server racks with a maximum power of 2–3kW.

Precision Air Conditioner

1. Natively supports N+1 and N+N full redundancy backup; automatic switchover to backup unit in case of failure.

2. Multiple protections: high/low pressure, anti-freeze, water leakage monitoring, overload, and fan failure alarms.

3. Supports BMS, SNMP, and Modbus data center monitoring systems; remote real-time alarm upload.

4. Configurable with dual power supply, dual piping, and dual circuits to ensure uninterrupted operation.

Ordinary Air Conditioner

No redundancy design; failure of one unit results in immediate loss of cooling; only basic fault codes are available, making it impossible to integrate with unified data center monitoring.

Precision Air Conditioners

1. Water-cooled models can be equipped with glycol antifreeze and pipe heat tracing, ensuring stable operation at -30℃ outdoors.

2. Direct expansion DX models offer optional low-temperature kits: crankcase heating, fan speed control antifreeze, and normal heat dissipation at -30℃.

3. Outdoor heat exchanger anti-icing and defrosting logic adapted for extremely cold regions.

Ordinary Air Conditioners

Most only support outdoor environments above -7℃; frequent start-stop of outdoor units at low temperatures, poor defrosting efficiency, and ineffective heat dissipation in northern winters.

Precision Air Conditioner

Standard configuration includes a medium-efficiency filter (G4/F7) to block dust, prevent short circuits caused by dust accumulation on server circuit boards, and provide filter pressure differential alarm to remind you to replace it.

Standard Air Conditioner

Only has a simple pre-filter, which can only block hair and large dust particles; fine dust can directly enter the server room.

Precision Air Conditioner

1. In-row unit for localized heat dissipation, low air resistance, low fan power consumption, and lower PUE.

2. Water-cooled model supports free cooling, shutting off the compressor in spring, autumn, and winter for significant energy savings.

3. Steplessly adjusts cooling capacity based on real-time heat generation in the server rack, minimizing compressor start-stop cycles.

Regular Air Conditioner

Start-stop fixed-frequency/simple inverter type, shuts off immediately upon reaching the set temperature, resulting in high energy consumption due to repeated start-stop cycles, and lacks a free cooling function.

Precision Air Conditioning

- Types: In-Row, CRAH/CRAC (Room/Rack), Backplane Water Cooling

- Can be installed between racks or on the floor, no raised floor required; suitable for modular IDCs, AI computing centers, and financial data centers.

Regular Air Conditioning

- Wall-mounted, floor-standing, and ducted units; suitable for offices, shops, and residences; not suitable for high-density data center deployments.