What do the fan coil model parameters mean? How to choose a fan coil unit?

Understanding Fan Coil Model Parameters

Fan coil model numbers often include codes like FP—123456. Each symbol in the model number has a specific meaning:

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1. “1” – Represents the rated air volume, calculated as the number × 10/h based on the national standard model.
2. “2” – Indicates the structural form:
   • W for horizontal type
   • L for vertical type
   • K for cassette type
   • BG for wall-mounted type
   • LZ for column type
3. “3” – Denotes the installation form:
   • A for concealed installation
   • M for surface installation
4. “4” – Refers to the presence of bellows:
   • No indication if there are no return bellows
   • G if return bellows are present
5. “5” – Specifies the water inlet direction:
   • Z for left water inlet
   • Y for right water inlet
6. “6” – Describes the use characteristics:
   • No code for the standard type
   • H plus a number for the residual pressure type

Choosing a Fan Coil Unit

1. Circulating Air Volume: Determine the appropriate circulating air volume based on the room’s area, ceiling height, and the required air changes per hour. Match this with the fan coil unit’s highest speed air volume to select the correct model.
2. Cooling Load: Calculate the cooling load required for the room using the unit area load and the room area. Select a fan coil unit that matches the cooling capacity needed.
3. System Resistance: Consider the resistance within the wind system, which can affect the air supply volume of the fan coil unit. Factors like dust accumulation can increase resistance, impacting performance. Always account for these resistance factors when selecting a unit.

Evaluating Fan Coil Unit Quality

1. Technical Standards: Assess the unit based on compliance with technical standards like GB/T19232. Higher compliance indicates better quality.
2. Production Indicators: Look for standardized production indicators and qualifications. High-quality units will have clear production standards and measurements.
3. Service and Support: Choose units from manufacturers that offer reliable service and support. This ensures assistance is available if issues arise with the unit.