Fan coil unit type and installation

mục lục

In the technical framework of modern building HVAC (Heating, Ventilation, and Air Conditioning) systems, Fan Coil Units (FCUs) serve as critically important terminal devices. This article will delve into aspects such as their classification, configuration, and maintenance to further enhance the understanding of fan coil units.

Fan coil unit type from CDAIRTECH

Installation method

  • Horizontal concealed installation: Hidden in the ceiling (ceiling interlayer), suitable for hotel guest rooms and offices.
  • Vertical exposed installation: Floor-standing design for easy maintenance, applicable to small commercial shops.
  • Cassette : Four-way air outlet for uniform air distribution, commonly used in conference rooms.
  • Ultra-thin type: Height ≤250mm, suitable for low-clearance spaces (e.g., loft apartments).

Functional Characteristics

  • Dual-source type: Connected to both cold and hot water systems simultaneously to achieve year-round temperature control, keeping indoor temperature within a small fluctuation range throughout the year.
  • With fresh air function: Integrated with a fresh air module and equipped with high-efficiency filters, it realizes indoor fresh air exchange while preventing indoor air pollution, thus improving indoor air quality.
  • Quiet type: Suitable for places with high noise requirements (usually noise level ≤30dB (A)), such as hospitals and libraries.

FCU Installation

Pre-installation Preparation

Calculation and Selection:Calculate the required cooling or heating load using the sensible heat formula:Q=c×tôi×ΔT(wherec = specific heat of airtôi = air volume)

Space Planning:Concealed FCU Installation: Reserve a maintenance access panel near the unit.
Ensure the ceiling cavity space is ≥500mm to facilitate fault diagnosis and maintenance. Exposed FCU Installation:Avoid placing flammable or moisture-prone items within ≥1.0m around the FCU to prevent potential losses during malfunctions.

Key Materials: Copper pipes or hoses: For connecting to supply and return water pipes. Insulation cotton: Fully wrap exposed pipes to minimize heat/cold loss. Condensate pipe: Connected to drain condensed water from air (slope ≥1%)

Installation Process

Step-by-step breakdown:
Lifting bracket fixing → connecting water pipe (welding or ferrule) → electrical wiring → condensate test

Caution:
The front end of the water supply pipe should be equipped with a valve to stop the use or maintenance.
Avoid clogging of the coil (Y-filter installation is recommended).
Condensate pipe should be designed to prevent backslope

Debugging and Acceptance

  • Khối lượng không khí:
    Detected by an anemometer to ensure the motor operates normally.
  • Water Flow Rate:
    Measured by an ultrasonic flowmeter to verify no deviation from the design value.
  • Temperature Control Accuracy:
    Tested with a supporting room thermostat to ensure the deviation between the detected temperature and the set temperature does not exceed the standard range (recommended deviation: ±0.5°C).

Related knowledge of fan coil unit and air curtain

xuất khẩu rèm khí từ Trung Quốc

Tôi là Jerry, Giám đốc Kinh doanh Xuất khẩu của cdairtech.com. Tôi đã làm việc tại nhà máy sản phẩm HVAC như đơn vị cuộn quạt,rèm không khí cho nhiều hơn 10 năm. Bạn có thể liên hệ với tôi nếu có bất kỳ câu hỏi nào về rèm khí.

Yêu cầu báo giá nhanh

Giám đốc Xuất khẩu của chúng tôi sẽ liên hệ với bạn trong vòng 1 ngày làm việc, vui lòng chú ý đến email: jerry.zhang@cdairtech.com

industry air curtain in warehouse
principle of revolving door air curtain1

Chờ đợi! Bạn có thể bỏ lỡ sự lựa chọn tuyệt vời về việc tùy chỉnh rèm gió

Cho dù bạn đang tìm kiếm một tấm chắn gió thương mại hay công nghiệp, chúng tôi có một giải pháp cho bạn.