Key Points of the Air Conditioning Design Process:
Carry out a detailed site survey | Measure the size of the area in m/2
Calculate the required heating and/or cooling load
Identify a range of suitable units with the required capacity
Discuss the options with the customer and make recommendations
Select the most appropriate units and any customization options
Identify the optimum positions for the units | Draw up a quote for the installation
Sizing the Air Conditioning Systems
The required heating and/or cooling load is largely determined by the area of the space. As a rule of thumb, we would generally base our calculations on 120w per square meter, but this really does vary depending on the activity of the room and its purpose.
Because ceiling heights don’t vary a great deal in commercial properties, the floor area is normally an appropriate measurement to accurately size each system. However, in some cases, particularly in high-ceiling buildings like churches or concert halls, it’s necessary to work out the volume of the space.
As well as measuring the area, we take into account everything else that can affect the heating and cooling load. We have to consider heat transfer through walls, doors and roofs, existing heating and lighting systems, IT equipment and occupancy levels.
The size and orientation of the windows is especially important. South facing windows result in high solar gain, giving you a natural source of passive heat. This can have a major effect on our calculations.
After carrying out a detailed site survey, we have enough information to work out the required heating and cooling capacity. Once we’ve done that, we can start to identify the most suitable system for the space.
Different Types of Air Conditioning Systems
Depending on the capacity you need, there are several types of air conditioning system to choose from, as well as a number of manufacturers.
The cheapest system is a wall-mounted single split, which is typically used in bedrooms, shops, server rooms, IT facilities and small offices.
More expensive systems, such as VRF, VRV or ducted systems, are made up of several indoor and outdoor units. The indoor units are installed above the ceiling, leaving only the grilles visible. They’re common in large commercial facilities, including hospitals, hotels and office buildings.
Most of these large projects are specified in advance, meaning that all we need to do in the design stage is price up the installation. However, we often give technical feedback to other contractors and architects, suggesting improvements to the system’s efficiency, functionality and cost.
- Connects one indoor unit to a single outdoor unit
- Easy and discreet installation on buildings
- Delivers sophisticated air conditioning to single zone interior spaces at an affordable price
- Requires minimal space
- Many different styles of unit to choose from to suit your taste, wall, floor
- Connects up to nine indoor units to a single outdoor unit
- Connects a complete air conditioning system to multiple zone interior spaces
- Provides individual control of room temperature settings
- Allows different styles and capacities of indoor units to be used in each space
- The VRV system is a multi-zone air conditioner with variable refrigerant flow control. It gives you the ability to maintain individual zone control in each room and floor of a commercial building
- VRV provides a total solution for heating, cooling, ventilation, hot water production, air curtains and central control