Split Wall Unit
What is BTU?
BTU is British Thermal Unit, per hour.
How many Btu per square foot for air conditioning?
A good general rule of thumb is 20 BTU per square foot. So, a 200 sf room would require a 4000 BTU ac unit.
If you use 20btu per square foot to determine the required tonnage, you will be under sizing your system. For example 20btux1500sf=30000btu. There are 12000 btu per ton so you are using a 2.5 ton system to cool 1500 sf. On a hot summer day your electric meter will be spinning like a tilt-a-whirl at the county fair. Your air conditioner is designed to run at it peak performance when the ambient temperature is 95 degrees or below. When the ambient heat or heat index exceeds 95 degrees you a/c is working harder and running longer. When sizing an a/c system you should take into consideration the summer climate where you live. In Texas we use 500 sf per ton as a rule with homes that have 8 foot ceilings, however walls with western exposure, windows facing the west (sun set) and vaulted or high ceilings should be considered in your determination. In commercial application you use 400 sf per ton, but you also factor the number of people occupying the space, equipment that generates heat and the amount of make up air that is required.
0sf-750 sf= 1.5 ton
751-1000 sf= 2.0 ton
100sf1-1250 sf=2.5 ton
1251sf-1500 sf=3.0 ton
1501sf-1750 sf=3.5 ton
1751sf-2000 sf=4.0 ton
2001sf-2500 sf=5.0 ton
The cooling capacity of room air conditioners is measured in BTUs, or British Thermal Units, per hour.
To figure the size unit you need, measure the space you’re trying to cool and find it on this chart. To estimate square footage, multiply the length of the room by the width. (A room that’s 10 feet by 20 feet, for example, has 200 square feet in it. The chart shows the recommended air conditioner for that sized space is rated at 6,000 BTUs.)
|To cool this area||Look for this size air conditioner|
|100 to 150 square feet||5,000 BTUs|
|150 to 250 square feet||6,000 BTUs|
|250 to 300 square feet||7,000 BTUs|
|300 to 350 square feet||8,000 BTUs|
|350 to 400 square feet||9,000 BTUs|
|400 to 450 square feet||10,000 BTUs|
|450 to 550 square feet||12,000 BTUs|
|550 to 700 square feet||14,000 BTUs|
|700 to 1,000 square feet||18,000 BTUs|
|1,000 to 1 400 square feet||24,000 BTUs|
When looking for the correct size air conditioner, keep these suggestions in mind, as well:
- If the room is heavily shaded, you can reduce the BTU capacity by 10%
- If the room is very sunny, you should increase the BTU capacity by 10%
- If more than 2 people regularly occupy the room, add 600 Btu for each additional person
- If the unit is for a kitchen, increase the capacity by 4,000 Btu/Hr.
Why Hybrid solar air-conditioner can save electricity?
Here are the reasons:
Firstly, it absorbs solar energy to heat the inside medium by using a solar collector. Freon from the compressor goes through the copper coil inside the collector and undertakes a heat exchange. Freon exchange heat with the medium inside the solar collector then go through a cycle inside the system for cooling and heating.
Secondly, it adopts a highly efficient heat-exchange system. The use of the internal thread pipe, hydrophilic aluminum fin and the optimal heat exchange system reduce energy loss, improve the overall efficiency and effectively ensure the performance. Therefore, hybrid solar air conditioner is more convenient and energy-saving than regular air conditioner.
Comparing to Current Products
1. Conventional air conditioner consumes too much, users have to pay a heavy electricity bill.
2. Photovoltaic (PV) system costs a large amount of money to build up.
3. Thermally driven absorption cooling is also very costly, and its cooling capacity is not big enough.
Tips on electricity saving of air conditioners: According to China National Management Method of Energy Efficiency, EER refers to the proportion between cooling capacity and power input, which is the only data used to value the energy-saving of air conditioners. The bigger it is the electricity it saves. If two AC with the same power consumption, the one with bigger capacity is better on electricity saving.
High Performance Japanese Brand Compressor
Durable and long-lived, smooth running. Low-loaded operation of the compressor to extend its duration.
Four-fold Heat Exchanger
As one of the main components of air conditioner, Chuanglan hybrid solar air conditioner adopts four-fold heat exchanger (take Supreme Silent as an example) heat exchanger effective area is increase by 20-40% than V-shape and flat heat exchangers, thus the cooling and heating effect are improved greatly.
High-quality Internal Thread Copper Pipe
Compared with normal copper pipe, the heat exchanging area of internal thread cooper pipe is significantly enlarged so does the exchange effect. Meanwhile, it can resist frosting and increase its starting ability at low temperature.
Hydrophilic aluminum foil to prevent the appearing of water bridge, thus to ensure the performance of heat exchange.