Difference and comparison of air conditioner and ducted split

Throughout history, humans have always looked for ways to improve their well-being, and one of the problems they usually face is the change in temperature in different seasons. Split air conditioners are produced and supplied for this purpose so that we are safe from cold or unbalanced heat in our living environment. Split air conditioners and ducted splits are two popular and common products that have been able to have a significant position in this field. In the rest of this article, the difference and comparison of the air conditioner with ducted split are discussed, stay with us.

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An overview of how the split air conditioners and ducted splits work

Air conditioners and split ducts are used for cooling or heating the environment and have similar working methods. In cooling, the operation of both these devices is based on the condensation refrigeration cycle and they work using the refrigerant gas. In this way, the refrigerant gas is condensed by the compressor and flows in the condenser and evaporator, and it takes place during a cooling process. The main difference between these two devices is how to transfer cool air in summer and perform the heating of the environment, the appearance of the indoor unit, and how to install them. In the following, we will discuss these differences and other things, such as comparing the power of air conditioners with split ducts in cooling and heating, temperature regulation, the sound of the device, the occupation of the external and internal space, and the dimensions of the desired environment.

The difference in the capacity of split air conditioners and ducted splits

• Split air conditioner: in split air conditioners, only one evaporator (internal unit) can be connected to the condenser (external unit), as a result, the internal panel of the air conditioner or split can only be used in one room or hall. And to provide cool air in separate rooms, a separate split should be installed for each room. Air conditioners are usually designed and manufactured with a capacity of 9000 (btu) to 60000 (btu) which is equivalent to 5 tons of refrigeration, but mostly used in capacities of 2 and 3 tons of refrigeration (24000 and 36000) (btu/hr). they take.
• Therefore, in the first step of comparing split air conditioners and duct splits, one should pay attention to the area covered by each device, which is actually the first step in understanding the differences between these two devices.
• Ducted splits: Ducted splits provide the ability to cool or heat several rooms at the same time. Split ducts are usually produced up to a maximum capacity of 8 tons of refrigeration, which in a city with a climate like Tehran, Mashhad, Karaj, Isfahan, Erbil, Kabul, Sulaymaniyah, Halba and other cities can cover an area of approximately 200 square meters. Usually, due to the large dimensions of the internal unit, such a capacity is used less and they are mostly used in the capacities of 2 to 5 tons of refrigeration (24,000 to 60,000 BTU/hour). Therefore, it is better to use two separate duct split devices (one for the hall and one for the rooms) for units with an area of more than 120 square meters.
• You can see the capacity table of air conditioners and ducted splits on the website of the specialized collection of heating equipment.

The difference between air conditioners and ducted splits in terms of heating

• Split air conditioner: When using the heating function, the compressor of the air conditioner is active in the same way as the cooling mode, but in a reverse cycle, and there is no difference in its energy consumption.
• Ducted Split: The heating system of the ducted split device is usually fed from the hot water of the central heating boiler or the central engine room, and the compressor does not play a role in the heating operation in the ducted splits, this causes the ducted split device to consume very low electricity when using the heating function.

The difference between split air conditioners and ducted splits in terms of appearance

• Split air conditioners: As their name suggests, split air conditioners consist of two external and internal units, the external unit (condenser) is no different from the split duct device and they are similar to each other. But in terms of the internal unit (evaporator), there are fundamental differences because the internal panel of the air conditioner is usually installed on the wall and is visible. For this reason, the beauty of the internal panel of air conditioners is of particular importance to the manufacturers and buyers of these devices.
• Ducted Split: Unlike the air conditioner, the internal unit of the Ducted Split is usually installed above the false ceiling, and it is possible to cool or heat several separate rooms through ductwork using only one condenser. The internal unit of the Ducted Split is built-in and the only thing that can be seen. It is a beautiful and elegant hatch in the ceiling of the entrance or in the hallway between the rooms.

The difference between ducted split and split air conditioners in terms of cooling and heating capability and power

By reversing the work cycle by a special four-way valve in these two devices, they can be used as heating devices in cold seasons, but this work is usually avoided for several reasons. The most important reason is that the consumption of electricity for heating in Iran is not economical due to the cheaper price of gas compared to electricity, so if a gas air conditioner is used in a building, it is usually a supplementary heating system such as a radiator package or a gas heater. And... it should also be used in the cold season. But in the Ducted Split, by adding a hot water coil to the evaporator (indoor unit) and flowing the hot water sent from the wall-mounted gas burner package or engine room boiler into the coil and rotating the evaporator fan, it is possible to distribute warm, comfortable and high-powered air in the unit.

The difference between an air conditioner and a ducted split in terms of temperature regulation

• Split air conditioner: because there is an evaporator in each room and a condenser for each evaporator, the temperature of each room can be adjusted independently and as desired or it can be turned on and off.
• Ducted Split: All rooms and halls that are connected to an evaporator by ducting are cooled or heated at the same time and at the same temperature, otherwise it is possible to use the ducts to each room from the terminal box (unit box or the same electric damper) used to open and close the air path.

Approximate calculation table of split air conditioner and capacity

For the approximate calculation of the air conditioner and split capacity needed (in weather conditions like Tehran) in the middle floors of the building, about 400 to 600 (BTU) per square meter and in the floors above which there is a roof, due to direct radiation Sunlight on the roof is considered between 600 and 800 (BTU) per square meter of infrastructure. For example, for a 12-meter room split 9000, for a 17-meter split 12,000, for a 25-meter split 18,000, for a 40-meter split hall 24,000 and for a 45-meter hall split 32,000. You can also refer to the table below for the approximate calculation and determination of the capacity of the split or air conditioner for greater convenience and determine the capacity of your air conditioner and split according to the conditions and bases of the above calculations. The table below shows the approximate ratio of the capacity of the air conditioner to the size of the environment in moderate weather.

Approximate calculation of ducted split capacity

By considering parameters such as square footage, environment area, and humidity percentage of geographical location, we can choose the split duct with suitable capacity. for example; If the air coefficient of Tehran is 400 and the size of the area in question is 100 square meters, by multiplying these numbers, we get the suitable split duct capacity 40000=400*100 The following table shows the approximate ratio of split duct capacity to the area in moderate weather.

Important point: before choosing and buying the required split duct, in addition to paying attention to the capacity and sufficient ventilation volume of the chosen split duct for the size of the desired space, other important issues such as the type of single-phase or three-phase electricity required by the device should be considered. Pay enough attention to the power supply in the unit as well as the physical dimensions, especially the height of the inner panel of the split duct for the possibility of placing it on top of the false ceiling of the respective unit.

It is emphasized again that for units with an area of more than 120 square meters, it is better than 2 split duct devices, one of which is installed above the false ceiling of the hall or reception area and is dedicated to cooling the same space, and the other split duct is above the false ceiling of the rooms and Use it to cool the rooms. By doing this, in addition to the permanent non-operation of a large, loud and high-power (electricity) split duct device, you can benefit from 2 devices with less electricity consumption, less noise and better temperature control in different spaces of your unit.

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Final word

In this article, the major differences between the two split devices (double air conditioners) and the split duct were discussed. You can visit the website of DamaTajhiz specialized collection (first and the most reliable specialized collection in the field of building facilities equipment and all air conditioning devices since 2013 and having 3 valid business licenses. You can also contact the experts of DamaTajhiz air conditioning unit during office hours to get more information and get advice through phone number +9821-88822550.

Related articles

In order to get more information, it is recommended to read the articles related to the difference and comparison of split air conditioner and ducted split.

• How to choose the right ducted split
• When should ducted split be used?
• The best way to choose split air conditioners
• A comprehensive guide to buying split air conditioners
• Ducted Split power consumption
• Dos and don'ts of Ducted Split

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