Buildings and large infrastructures generally have central air conditioning. A central air conditioning unit uses a split system for its condenser and compressor. The evaporator is attached to an air handling mechanism or a forced air furnace. The whole system is housed in a packaged unit that is often located outdoors, such as a rooftop or an outhouse.
ลิงก์ย้อนกลับมายังไซต์ของฉัน 
