High Static Pressure Ceiling Conceal Duct Type Fan Coil Unit MFP-340HAW

High Static Pressure Performance for Extended Duct Runs

External Static Pressure Rating

The MFP-340HAW is a high static pressure ducted fan coil unit engineered for installations requiring extended ductwork. The unit delivers up to 120 Pa of external residual static pressure, which supports connected duct lengths of 10 meters and longer. This specification addresses the static pressure limitations of standard fan coil units, making the model suitable for commercial spaces where air must travel through long duct runs before reaching the supply outlets.

Compared with standard static pressure models, the high static pressure configuration operates at a higher fan speed to generate the additional pressure. This results in a corresponding increase in noise output, which specifiers should account for when selecting between standard and high static pressure variants for a given application.

Centrifugal Fan Assembly

The unit uses a forward-curved centrifugal fan that has undergone dynamic balance adjustment during manufacturing. The fan is sized to deliver the rated air volume while maintaining the published external static pressure figure at the unit discharge.

Heat Exchanger and Coil Construction

Copper Tube and Aluminum Fin Configuration

The heat exchanger coil is constructed with purple copper tubes and aluminum fins. Copper provides high thermal conductivity, while the fin spacing has been optimized through computer simulation and experimental validation to balance heat exchange surface area with airflow resistance. The fin design promotes smooth air passage across the coil surface.

Hydraulic Pressure Rating for High-Rise Installations

The coil assembly is rated to withstand high hydraulic pressure levels. This pressure rating makes the unit suitable for installation in high-rise buildings where water column pressure increases with building height. The copper tubes exhibit both tensile strength and rigidity under pressurized operating conditions.

Airflow and Acoustic Performance

Air Volume Delivery

The unit is equipped with a large-diameter fan wheel designed to move substantial air volumes through connected duct systems. The airflow rating supports the cooling and heating loads of medium to large commercial spaces when paired with appropriately sized ductwork and outlet registers.

Noise Output Across Fan Speeds

As a high static pressure model, the MFP-340HAW operates at higher fan speeds than standard static pressure equivalents, which produces higher sound levels. Specifiers working on acoustically sensitive spaces should evaluate the standard model variant, which operates at lower fan speeds and produces correspondingly lower noise output.

Installation and Maintenance Design

Ceiling Concealed Installation Footprint

The MFP-340HAW is designed for ceiling concealed installation, where the entire unit sits above the finished ceiling and only supply air grilles and return air openings are visible in the occupied space. The horizontal (W-type) chassis configuration fits within standard ceiling plenum depths for most commercial building designs.

Service Accessibility Features

The unit incorporates design elements that facilitate installation and maintenance procedures. Service technicians can access key components through standard ceiling access panels, reducing the time required for routine inspection, filter replacement, and coil cleaning tasks.

Optional Configurations

Electric Heater Option

An electric heater is available as an optional configuration for the MFP-340HAW. This add-on provides supplementary heating capacity for projects where hot water supply is limited or where additional heating output is required during peak winter conditions. Procurement teams should specify the electric heater option at the time of order.

Suitable Commercial and Industrial Applications

This high static pressure ceiling concealed fan coil unit is specified for commercial spaces requiring long duct runs, including open-plan offices, retail malls, hotel corridors and lobbies, hospital public areas, and convention center spaces. The 120 Pa external static pressure allows mechanical designers to route ductwork around structural beams, plumbing risers, and other ceiling plenum obstructions without sacrificing airflow delivery to occupied zones.

FAQ

What is the external static pressure of the MFP-340HAW?

The unit provides up to 120 Pa of external residual static pressure at the air discharge.

How long can the connected air ducts be?

The 120 Pa static pressure rating supports connected duct lengths of 10 meters or more, depending on duct diameter, fitting count, and outlet configuration.

What material is used for the heat exchanger coil?

The coil uses purple copper tubes with aluminum fins. The fin spacing is optimized through simulation and experimental testing.

Is an electric heater available for this model?

Yes, an electric heater is available as an optional configuration and should be specified at the time of purchase.

Is this unit suitable for high-rise building installations?

Yes, the coil construction is rated for high hydraulic pressure conditions, making the unit appropriate for high-rise building applications.