O exemplo o mais atrasado da empresa aproximadamente Beijing Holtop Artificial Environment Technology Co., Ltd Certificações

Project Background

The Fangcun Schools (Junior High School) project is a key educational supporting facility within the Fangcun urban renewal zone in Shijiazhuang City, Hebei Province. The campus carries the important responsibility of upgrading the district's basic education capacity and serves hundreds of students and teachers every day. Because the school runs on a fixed timetable all year round, the indoor environment directly affects concentration, attendance and general wellbeing — which makes HVAC performance a non-negotiable part of the building design.

After a competitive technical evaluation, the general contractor selected Holtop's air conditioning range for the whole campus, with a total supply of 317 units (sets) covering classrooms, offices and shared circulation spaces.

Client Requirements

• Four-dimensional comfort: stable temperature, controlled humidity, adequate fresh air and high cleanliness in every occupied room.
• Low noise: equipment had to stay quiet enough for lecture conditions and examination periods.
• Zoning flexibility: classrooms, offices and corridors have very different load profiles and operating hours.
• Energy efficiency: a school building runs on a tight operations budget, so part-load efficiency and easy maintenance were essential.
• Schedule certainty: delivery and commissioning had to align with the academic calendar and the overall construction programme.

Scope of Supply

Total delivered: 317 units (sets) of air handling units, fan coil units and fresh air ventilation units.

All three product families are built in Holtop's own factories. The fresh air ventilation units come from the same platform the company supplies as one of China's established energy recovery ventilator manufacturers, and where a room layout cannot take a standard unit, Holtop works as one of the few custom air handling unit manufacturers able to build to drawing — non-standard dimensions, airflow rates and coil selections included.

How the Solution Works

1. Centralised treatment, distributed delivery: the AHUs handle the bulk of the latent and sensible load and deliver conditioned primary air, while the fan coil units fine-tune temperature room by room so every space stays within its target band. The same AHU platform is also offered as a DX air handling unit for projects without a chilled-water plant, keeping the casing, filtration and control architecture identical.
2. Dedicated outdoor air: the fresh air ventilation units run independently of the recirculation system, guaranteeing a continuous supply of filtered outdoor air and positive pressurisation — critical for diluting CO₂ in densely occupied classrooms. In this project they operate with heat recovery, so exhaust energy is reused instead of wasted.
3. Multi-stage filtration: coarse and fine filtration stages trap dust and particulates before air enters the room, supporting a cleaner, healthier teaching environment.
4. Quiet operation: low-speed fan sections and vibration-isolated mounting keep sound levels appropriate for lecture and examination conditions.
5. Maintainable design: accessible filter racks and service panels let the school's own maintenance team handle routine servicing without specialist tooling.

Results

All 317 units (sets) of air handling, fan coil and fresh air equipment were supplied as a single coordinated package for the campus. Key outcomes include:

• Consistent temperature, humidity, freshness and cleanliness across classrooms, offices and shared spaces.
• A healthier, more comfortable learning environment that supports attendance and concentration.
• Zoned control that avoids conditioning unoccupied rooms, keeping operating costs predictable.
• Equipment supply and commissioning aligned with the campus construction programme.

Why This Project Matters

Schools are among the most demanding indoor environments: high occupant density, strict acoustic expectations and long daily operating hours. Delivering 317 units of air handling, fan coil and fresh air equipment to a single campus shows the breadth of the Holtop range and the ability to coordinate a multi-product package under one contract. It also reinforces a repeatable model for urban-renewal education projects, where indoor air quality is treated as part of the educational infrastructure.

Holtop also operates as one of China's experienced air cooled chiller manufacturers, supplying packaged air cooled chillers that pair with the air handling and fan coil systems described above — useful where a campus needs its air-side equipment and cooling plant from a single supplier.