Panbu Electric
Cleanroom EC Fan Cluster Retrofit
HVAC

Cleanroom EC Fan Group Retrofit

The original AC fan bank in the cleanroom of an electronics manufacturing facility operated at a fixed speed, causing significant energy waste due to damper throttling and generating excessive noise that affected the work environment. The project replaced all AC fans with EC permanent magnet motors and implemented closed-loop demand-based airflow control using pressure sensors, managed centrally by an intelligent linkage system for multiple units. Post-retrofit, the cleanroom's air system now operates on demand, achieving significant improvements in both noise levels and energy consumption, with annual electricity savings exceeding projected targets.

RESULTS

Transformation Results

SAVING RATE

35%Comprehensive Energy Saving Rate

Overall energy consumption reduction after retrofit

ENERGY COMPARE

96
Before renovation
62
Refactored

Annual Energy Consumption Comparison (Unit: 10,000 kWh)

KEY METRICS

Holiday Power Consumption3410,000 kWh
Payback Period12month
Energy savings rate35%

The fan system operates on demand, simultaneously reducing workshop noise and energy consumption.

RELATED

Products and Solutions in this Project

Wolong WD200 Series High-Performance General-Purpose Variable Frequency Drive

Wolong WD200 Series High-Performance Universal Variable Frequency Drive

Wolong WD200 Series High-Performance General-Purpose Variable Frequency Drives offer power ratings from 0.75 to 1000 kW. They support single-phase 200~240 V, three-phase 200~240 V, three-phase 380~480 V, and three-phase 660~690 V power supplies, driving three-phase asynchronous motors, permanent magnet synchronous motors, and synchronous reluctance motors. Features include V/F control, open-loop vector (SVC), closed-loop vector (FVC), and decoupled voltage-frequency control modes. Speed ranges are 1:200 (SVC) / 1:1000 (FVC). Output torque is 0.5% of rated at 0 Hz and 150% of rated at 200% Hz. Efficiency reaches up to 98%. Supports common DC bus multi-drive and four-quadrant applications.

JUMO Armored and Industry-Specific RTDs

JUMO JACKETED AND INDUSTRY-SPECIFIC RTDs

JUMO armored, insertion, environmental, and surface-mount RTDs featuring hygienic cladding for food and pharmaceutical applications (316L, Ra ≤ 0.8µm, EHEDG conical seal) and pairing probes specifically designed for heat meters (MID Module D, PTB certified, 0 to +180°C, ΔT 3 to 180 K), suitable for hygienic processes and billing applications.

Pengke PLFH External Rotor Centrifugal Fan

Pengke PLFH External Rotor Centrifugal Fan

Pengke PLFH External Rotor Centrifugal Fan. Modular design for flexible configuration. Max airflow: 7000 m³/h, max pressure: 1000Pa, peak efficiency: 65%. Impeller diameter: 190mm–450mm. Available in galvanized steel, aluminum alloy, or composite materials. Ideal for small HVAC systems and FFU air purifiers.

Pengke PLFB Centrifugal Supply and Exhaust Fan Unit (EC/AC)

Pengke PLFB Centrifugal Supply and Exhaust Fan Unit (EC/AC)

PENGKE PLFB Centrifugal Supply and Exhaust Fan Unit (EC/AC) with quick-release housing design. Maximum airflow: 100000m³/h, maximum pressure: 4500Pa, peak static pressure efficiency: 79%, peak total pressure efficiency: 83%. Impeller diameter: 250mm–1250mm. Ideal for ducted supply/exhaust ventilation and server room air handling.

TESTIMONIALS

Customer Reviews

After replacing EC fans, airflow in the data center is more uniform, noise levels are significantly lower, and maintenance inspection pressure has decreased. The upgrade was completed without disrupting normal cooling operations.
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Head of Operations, Data Center

Operations Lead

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