Considerations when installing Hitachi air conditioners in stores with multiple partitions

When designing a retail store with multiple partitions, using partitions to divide display areas, checkout counters, fitting rooms, and workspaces is a common way to optimize functionality. However, a layout with multiple partitions can directly affect how air is distributed and circulated throughout the air conditioning system.

If the system is not properly designed, cool air may concentrate in certain areas, while spaces behind partitions may not reach the desired temperature. This not only affects the comfort of customers and employees but can also reduce the overall operating efficiency of the system.

To address this issue, the layout of Hitachi commercial air conditioning systems should be planned based on the building's architectural features, cooling load, and usage requirements of each area. Below are some important factors to consider during the system design and installation process.

Common Challenges When Installing Air Conditioning in Retail Stores

Spaces divided into multiple areas often have different usage patterns and air circulation conditions. These factors can directly affect cooling performance if the air conditioning system is not properly designed.

Restricted Airflow Caused by Partitions

Tall partitions, display cabinets, and enclosed areas can obstruct airflow from indoor units. As a result, areas close to the equipment may reach the desired temperature, while spaces behind partitions may remain insufficiently cool.

Different Cooling Requirements Across Areas

Within the same retail store, display areas, checkout counters, fitting rooms, and storage spaces may have different cooling requirements. For example, display areas often generate more heat due to lighting systems and high customer traffic, while fitting rooms or workspaces may require separate cooling conditions. If a single indoor unit is used without properly calculating its air distribution coverage, maintaining consistent cooling throughout the store can be difficult.

Limited Space for Outdoor Unit Installation

Installing multiple independent air conditioners means that a corresponding number of outdoor units must also be accommodated. For stores located in shopping malls, townhouses, or buildings with limited technical space, this can present an installation challenge. Therefore, air conditioning solutions that allow multiple indoor units to connect to a single outdoor unit can simplify equipment layout and make more efficient use of available installation space.

Key Considerations When Installing Hitachi Commercial Air Conditioning Systems

To ensure effective cooling in retail stores with multiple partitions, several factors must be considered together, including indoor unit placement, equipment capacity, air distribution, and system configuration.

Survey the Layout and Divide Cooling Zones

Before selecting equipment, the entire premises should be surveyed to determine the floor area, ceiling height, number and structure of partitions, and intended use of each space. Other factors should also be assessed, including the number of people during peak hours, heat generated by lighting systems and electrical equipment, glass door and window areas, as well as the available locations for outdoor units and refrigerant piping.

These details provide the basis for calculating the cooling load, determining the number and capacity of indoor units, and selecting an appropriate system configuration. This helps ensure that the system can meet the cooling requirements of the entire store.

Position Indoor Units According to Functional Areas

In layouts with multiple partitions, indoor units should be positioned according to the area, shape, and function of each space to ensure effective air distribution. During installation, avoid locations where partitions or display shelves obstruct the airflow direction, and minimize direct cold air drafts toward areas frequently occupied by customers and employees. In addition, sufficient clearance should be maintained around each unit to allow proper air intake and distribution, as well as convenient access for cleaning, inspection, and routine maintenance.

Calculate Capacity Based on Actual Cooling Loads

Air conditioning capacity should be determined based on the building's actual cooling load rather than the total floor area alone. For retail stores with multiple functional areas, factors affecting heat gain should be considered, including the number of occupants, electrical equipment, lighting systems, glass surface area, and heat exchange with the outdoor environment.

Calculating the cooling load for each area helps determine the appropriate indoor unit capacity while also establishing the total connected capacity and outdoor unit configuration within the technical limits of each Hitachi air conditioning system.

Plan Refrigerant Piping and Outdoor Unit Locations

When using a system in which multiple indoor units connect to one outdoor unit, the refrigerant piping network must be calculated and designed as an integrated system from the outset. Key factors include total piping length, height differences between indoor and outdoor units, branch locations, and the connection limits specified for each model.

The outdoor unit should also be installed in a well-ventilated location, with sufficient space for heat exchange with the surrounding environment and convenient access for inspection and maintenance. Proper system design helps maintain operating conditions and minimize technical issues during use.

Hitachi Solutions for Connecting Multiple Indoor Units to One Outdoor Unit

For retail stores with multiple functional areas separated by partitions, Hitachi offers two solutions worth considering: Hitachi commercial air conditioning systems and Hitachi Mini VRF Set Free systems. Both offer configurations suitable for layouts requiring multiple indoor units connected to a shared outdoor unit.

Depending on the floor area, number of cooling zones, cooling load, and operating requirements, investors can select an appropriate solution to optimize installation space, ensure effective air distribution, and meet the needs of each area.

Hitachi Commercial Air Conditioning Systems

Hitachi commercial air conditioning systems offer a variety of indoor unit options to meet installation and air distribution requirements in commercial spaces such as retail stores, showrooms, offices, and restaurants. Depending on the ceiling design, usable area, and interior layout, projects can choose from ceiling cassette, concealed duct, and floor/ceiling indoor units.

Among these options, Hitachi ceiling cassette units are suitable for areas with ceilings that allow recessed installation and require relatively even air distribution. Concealed duct units allow air outlets to be positioned at multiple locations, making them suitable for layouts with partitions or spaces that require air to be distributed to separate areas. For locations where ceiling installation is not practical, floor/ceiling units are another option to consider.

With a diverse range of indoor unit designs and system configurations, Hitachi commercial air conditioning can accommodate various installation arrangements in retail stores and commercial buildings. Equipment selection should be based on the area of each zone, the degree of space division, and actual temperature control requirements.

Hitachi Mini VRF Set Free System

For stores with complex layouts, multiple functional areas, or a need to connect a larger number of indoor units, the Hitachi Mini VRF Set Free system is a highly suitable solution worth considering. The Mini VRF Set Free HNRQ and HNSKQ series are designed around a configuration in which one outdoor unit connects to multiple indoor units. This allows the system to provide cooling for different spaces within the same building without requiring a separate outdoor unit for each indoor unit.

Hitachi Mini VRF Set Free features compact outdoor units, supports multiple indoor unit connections, and offers flexible piping arrangements. These features help optimize installation space and accommodate layouts with multiple functional areas. In terms of efficiency, the HNRQ series achieves an EER of up to 4.5 and a COP of up to 4.59, while the HNSKQ series achieves an EER of up to 4.0 and a COP of up to 4.2. With these characteristics, the system is worth considering for large retail stores, showrooms, offices, and commercial buildings requiring air conditioning across multiple areas.

U.P Tech - Official Exclusive Distributor of Hitachi Air Conditioners in Vietnam

For retail stores with multiple partitions, selecting an air conditioning system requires careful consideration of the layout, division of functional areas, and actual usage requirements. The right solution should not only provide effective cooling but also optimize equipment placement and support long-term operating efficiency.

As an official distributor of Hitachi air conditioning systems in Vietnam, U.P Tech offers a wide range of commercial air conditioning solutions, from the Primairy series to Mini VRF Set Free systems. Based on the scale and characteristics of each project, U.P Tech's team provides consultation to help customers select equipment configurations that meet their installation requirements. Contact U.P Tech for consultation on Hitachi air conditioning solutions for retail stores, showrooms, offices, and commercial spaces with multiple functional areas.

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