Commercial Air Handler Unit

Correction under different wind speeds, inlet air temperature, and water temperature conditions:

Actual cooling capacity = Cooling capacity from Table 1 × K1 × K3
Actual water flow = Water flow from Table 1 × K1 × K3
Actual water resistance = Water resistance from Table 1 × K2 × K4

Example: Selecting YG-20 air conditioner, the cooling coil face wind speed is 2.5 m/s. According to Table 1, the cooling capacity is 150.8 kW, water flow is 26.21 m³/h, and water resistance is 14.07 kPa. Determine the actual cooling capacity, water flow, and water resistance when the inlet air dry-bulb temperature is 27°C, wet-bulb temperature is 21°C, inlet water temperature is 7°C, and outlet water temperature is 12°C.

Solution: From Table K1, the correction factor K1 = 1.14. From Table K2, the correction factor K2 = 1.27.
Therefore:

Actual cooling capacity (Q) = Standard condition cooling capacity × K1 = 150.8 × 1.14 = 171.91 kW
Actual water flow (V) = Standard condition water flow × K1 = 26.21 × 1.14 = 29.88 m³/h
Actual water resistance (P) = Standard condition water resistance × K2 = 14.07 × 1.27 = 17.87 kPa

Heating, water volume, water resistance

Heating conditions: air inlet temperature 15℃, water inlet temperature 60℃

Note: 1. The unit's performance reference at a headwind speed of 2.5m/s
2. The coil is a dual-purpose coil for hot and cold applications

✅ High-Capacity Airflow Management

Designed to handle large volumes of air efficiently for commercial spaces.

✅ Advanced Filtration System

Equipped with MERV, HEPA, or ULPA filters to remove dust, allergens, and pollutants.

✅ Modular & Customizable Design

Available in various configurations (horizontal, vertical, rooftop, or indoor units) to suit different building requirements.

✅ Energy-Efficient Components

Features variable speed fans, energy recovery wheels, and high-efficiency coils to reduce energy consumption.

✅ Humidity & Temperature Control

Integrated with cooling, heating, and dehumidification functions to maintain comfort levels.

✅ Noise Reduction Technology

Built with insulated panels and vibration dampers for quieter operation.

✅ Smart Control & Monitoring

Can be integrated with Building Management Systems (BMS) for automated climate control.

🏢 Office Buildings – Ensures employee comfort and improves productivity.
🏬 Shopping Malls & Retail Stores – Maintains a pleasant indoor shopping experience.
🏨 Hotels & Resorts – Provides a comfortable and energy-efficient climate for guests.
🏥 Hospitals & Healthcare Facilities – Ensures sterile, contaminant-free air for critical environments.
🏭 Industrial & Manufacturing Facilities – Supports ventilation and temperature control in factories and warehouses.
🎓 Educational Institutions – Enhances indoor air quality in schools and universities.

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