Methods for differentiating the horsepower of fan coil units
There is no national standard mandating the labeling of horsepower for fan coil units. The industry standard for horsepower is a common way of referring to cooling capacity (industry benchmark: 1 horsepower ≈ 2500W standard cooling capacity). The key to distinguishing horsepower lies in three aspects: the model number, the rated cooling capacity, and the rated air volume. This is a universal standard for HVAC selection and equipment verification. Specific methods for distinguishing horsepower are as follows:
1. Quickest way to distinguish: Check the model number (FP coding rules)
Most fan coil units on the market are in the FP-XX format. The suffix number represents the rated air volume (unit: 10m³/h). The larger the number, the larger the air volume, the higher the cooling capacity, and the larger the horsepower. This is the core basis for quick on-site identification.
For example: FP-34 represents a rated air volume of 340 m³/h; FP-51 represents a rated air volume of 510 m³/h.
II. Precise Differentiation: Calculated by Cooling Capacity (Most Accurate)
The air conditioning industry uses a standardized conversion formula: Horsepower = Rated Cooling Capacity (W) ÷ 2500. This is the only accurate way to determine horsepower and avoids model discrepancies. Fan coil units have a slightly lower cooling capacity than regular wall-mounted units of the same horsepower, hence the distinction between small horsepower and standard horsepower.
that the standard operating cooling capacity indicated on the equipment nameplate is the only basis for judgment, not the air volume or the size of the device.
III. Industry-standard batch size comparison table (comprehensive coverage of commonly used items)
Based on model, air volume, and cooling capacity, we have compiled a list of common fan coil unit horsepower ratings for both commercial and residential applications, which can be directly compared and determined:
- FP-34 : Air volume 340m³/h, cooling capacity ≈1800W, ≈0.7 horsepower (small 1 horsepower, generally suitable for spaces within 10㎡)
- FP-51 : Air volume 510m³/h, cooling capacity ≈2500W, ≈1 horsepower (standard 1 horsepower, suitable for 10-15㎡ space)
- FP-68 : Air volume 680m³/h, cooling capacity ≈3200W, ≈1.3 HP (small 1.5 HP, suitable for 15-20㎡ space)
- FP-85 : Air volume 850m³/h, cooling capacity ≈3600W, ≈1.5 HP (standard 1.5 HP, suitable for 20-25㎡ space)
- FP-102 : Air volume 1020m³/h, cooling capacity ≈5000W, ≈2HP (standard 2HP, suitable for 25-35㎡ space)
- FP-136 : Air volume 1360m³/h, cooling capacity ≈7200W, ≈3 horsepower (standard 3 horsepower, suitable for 35-50㎡ space)
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