Wall-Mounted Fan Coil Unit

Wall-mounted fan coil units are considered one of the most widely used types of fan coil units in HVAC systems. Due to its low energy consumption, easy installation, and wide variety of models, it holds a special position in residential complexes and large construction projects. In the following, this type of fan coil unit and its features are introduced.

Professional Guide to Selecting and Pricing Wall-Mounted Fan Coil Units

A wall-mounted fan coil unit is used to provide cooling and heating in residential, office, and commercial environments. Thanks to its easy installation, minimal space requirement, and attractive design, it is considered an ideal alternative to bulky and costly systems. Wall-mounted fan coil units use chilled or hot water supplied by a chiller or boiler to deliver the desired temperature and allow independent temperature control for each space.

In terms of appearance, wall-mounted fan coil units are designed to closely resemble wall-mounted split air conditioners, to the extent that no difference is noticeable at first glance; however, their internal structure and operating principle are thoroughly different.
Unlike split air conditioners, which consist of indoor and outdoor units, a wall-mounted fan coil unit consists of only one decorative panel that is installed on the interior wall of the building.

Components and Operating Principle of a Wall-Mounted Fan Coil Unit

The main components of a wall-mounted fan coil unit include a blower fan, copper coils, and an air filter. The chilled or hot water required for the coils is usually supplied by a chiller (for cooling in summer) and a boiler or heating package unit (for heating in winter). The operation of wall-mounted fan coil units involves drawing room air through the internal fan and passing it over coils carrying chilled or hot water. This process cools or heats the air, which is then distributed throughout the space.

In addition, precise control over temperature, fan speed (low, medium, or high), and, in some models, operating schedules, is available through the control panel or wall-mounted fan coil thermostat. This allows intelligent adjustment and management of indoor thermal comfort conditions.

Types of Wall-Mounted Fan Coil Units

Wall-mounted fan coil units have less structural diversity compared to ceiling-mounted, floor-mounted, and cassette fan coil units; however, they can be classified from several perspectives:

1. Based on the piping system type

• Two-pipe wall-mounted fan coil unit: The most common type, featuring only two pipes (supply and return of chilled or hot water). Only one mode—cooling or heating—can operate at a time.
• Four-pipe wall-mounted fan coil unit: Equipped with four pipes (chilled water supply and return + hot water supply and return), allowing simultaneous cooling and heating. This type is mainly used in office projects, hotels, and smart buildings.

2. Based on the control type

• Wall thermostat control: Control via a wall-mounted thermostat that allows adjustment of temperature, fan speed, and operating mode.
• Remote control: Wall-mounted fan coil units can be adjusted using a wireless remote control. Some models are equipped with a built-in digital display.
• BMS-compatible: Certain models can be connected to Building Management Systems (BMS), enabling remote programming and control.

3. Based on airflow capacity (CFM)

Wall-mounted fan coil units are generally available in various airflow capacities ranging from 200 to 800 CFM, which should be selected according to the area of the space.

Advantages of Wall-Mounted Fan Coil Units

The main advantages of wall-mounted fan coil units include the following:

• High-capacity and operational efficiency
• Equipped with remote control and digital display panel
• Comfortable and uniform cooling and heating
• Equipped with a thermostat for temperature control
• Minimal space occupation due to wall-mounted installation
• Optimized energy consumption and reduced electricity costs
• Independent temperature control for each room
• Modern and attractive design compatible with interior décor
• Low-noise operation for enhanced comfort and tranquility
• Equipped with washable and easily replaceable filters
• Easy installation and low-cost maintenance without the need for extensive ductwork
• Convenient servicing and maintenance due to easy access to filters and internal components

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How to Estimate Wall-Mounted Fan Coil Unit Capacity

In general, wall-mounted fan coil units are widely used in building projects and are available with airflow capacities ranging from 200 to 800 (CFM). By referring to the approximate fan coil capacity selection table, you can obtain an initial estimation for the required space.

Buying a Wall-Mounted Fan Coil Unit

Due to the popularity of wall-mounted fan coil units, most leading Iranian and international manufacturers of fan coils have designed and produced this type as well. Among the best-selling brands are Green, Goldiran, Midea, Saran, and Damatajhiz. To properly select and purchase a wall-mounted fan coil unit, the following points should be carefully considered:

1. Selecting the Appropriate Capacity of a Wall-Mounted Fan Coil

The first and most important factor is selecting a wall-mounted fan coil capacity that matches the floor area and thermal conditions of the intended space. Fan coil capacity is usually expressed in CFM (airflow rate). Choosing a capacity lower than required leads to poor cooling or heating performance, while selecting a higher capacity may result in increased energy consumption and higher purchase costs.

2. Compatibility with Chilled and Hot Water Sources

Wall-mounted fan coil units require chilled or hot water flow through the coil to provide cooling and heating. This water is typically supplied by a chiller during summer and by a boiler or heating package during winter. Therefore, before purchasing, it is essential to ensure that the selected fan coil is compatible with the project’s thermal energy supply system.

3. Number of Pipes in Wall-Mounted Fan Coils

Another critical consideration when selecting and purchasing a fan coil unit is whether it is a two-pipe or four-pipe system. Wall-mounted fan coils from reputable brands are generally manufactured as two-pipe units (one supply pipe and one return pipe). However, some manufacturers offer four-pipe wall-mounted fan coils that allow simultaneous cooling and heating. It should be noted that Iranian manufacturers also provide four-pipe models with dual coils based on customer orders.

4. Brand and After-Sales Service

The brand of a wall-mounted fan coil directly affects build quality, durability, and the availability of spare parts. Choosing reputable domestic or international brands with comprehensive after-sales service reduces the risk of failure and maintenance expenses.

5. Noise Level of the Wall-Mounted Fan Coil

In indoor spaces such as bedrooms, offices, or living rooms, the noise level of the fan coil is especially significant. Therefore, it is recommended to select a model with a low and acceptable sound level to maintain acoustic comfort.

6. Thermostat Type and Control Features

Wall-mounted fan coils equipped with digital thermostats or advanced control panels allow precise temperature adjustment, fan speed control, operation scheduling, and selection of operating mode (cooling or heating). Some models also offer connectivity to Building Management Systems (BMS).

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7. Appearance and Dimensions of the Wall-Mounted Fan Coil

Since wall-mounted fan coils are installed in visible areas, their exterior design and front panel should be compatible with the interior décor. Additionally, the unit dimensions must suit the installation space and should not obstruct movement or furniture arrangement.

At Damatajhiz, comprehensive technical information for dozens of wall-mounted fan coil models from reputable brands with official warranties is provided, enabling customers to enjoy an optimized and smart online purchasing experience.

Wall-Mounted Fan Coil Price

The price of a wall-mounted fan coil depends on its capacity, brand, and other technical specifications. You can select the most suitable model from hundreds of wall-mounted fan coils available at Damatajhiz according to your budget.
It should be noted that all wall-mounted fan coil prices listed at Damatajhiz are up to date and include consumer discounts, along with the Best Price Guarantee.

Installation Method of Wall-Mounted Fan Coils

The installation of wall-mounted fan coils requires adherence to technical and safety guidelines to ensure optimal performance. First, the installation location must be selected so that airflow is not obstructed and access for maintenance is convenient. Then, the mounting bracket is securely fixed to the wall using appropriate anchors, ensuring it is level.

After installing the bracket, the chilled and hot water supply and return pipes are connected to the fan coil according to the piping layout, ensuring all connections are leak-free. Electrical wiring and the temperature controller are then connected in compliance with safety standards, and the air filter is properly installed.

Finally, the system is test-operated to check for water leakage, airflow, and fan performance. System pressure, water temperature, and thermostat settings are verified to ensure the fan coil is ready for operation.

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Dear User;

We appreciate your trust in the technical advice of Damatajhiz sales experts. Please note that selecting a product brand ultimately depends on the buyer’s preferences based on brand reputation, service quality, and pricing. However, in the field of wall-mounted fan coils, many users prefer popular brands such as Damatajhiz and Saran due to their quality, reasonable pricing, and reliable after-sales service.

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