2025年3月11日 · Motor vehicle air conditioners use refrigeration to cool the driver's or passenger's compartment. Learn more about EPA requirements for servicing these systems, and how these requirements impact service technicians, shop owners, and some refrigerant retailers.

Technicians planning to work with MVAC systems and purchase refrigerants must obtain an EPA Section 609 certification. Mainstream Engineering offers an online 25-question, open-book test along with a free study manual to ensure your success.

暖通空調系統提供通風功能，減少 空氣滲透 （英语：Infiltration (HVAC)），維持室內外或不同房間之間的壓力關係, 空氣流進或流出房間的特性稱作 室內空氣分佈 （英语：Room air distribution）。

2024年12月20日 · Motor vehicle air conditioning (MVAC) equipment uses refrigeration to cool the driver's or passenger's compartment. This page describes EPA requirements for servicing these systems, and how these requirements impact service technicians, shop owners, and some refrigerant retailers.

2024年8月15日 · MVAC Regulatory Requirements https://www.epa.gov/mvac/epa-regulatory-requirements-mvac-system-servicing Clean Air Act Enforcement As noted above, EPA regulations under Title VI of the Clean Air Act are designed to protect the ozone layer and to provide for a smooth transition away from ozone-depleting substances.

The purpose of 609 (Mobile Vehicle Air Conditioning) certification, as established by EPA, is to teach technicians and test their ability to properly handle and recover refrigerants.

mechanical ventilation and air conditioning (MVAC) system means the equipment, distribution network and terminal that provide, either collectively or individually, the processes of heating, cooling, humidification, dehumidification, ventilation or air-purification or any other associated processes to a conditioned space except window-type air ...

2016年10月13日 · Motor vehicle air conditioners (MVACs) provide comfort cooling for passengers in cars, trucks, buses, planes, trains, and other forms of transportation. The MVAC end-use is unique due to use in widely varying ambient conditions, likelihood of accidents, and the location of a part of the system―the evaporator―inside the passenger compartment.

2015年8月5日 · These two terms are often used interchangeably to describe any type of heating or cooling device in a home. HVAC is important in the design of medium to large industrial and office. Heating, ventilation, and air conditioning ( HVAC ) is the technology of indoor and vehicular. MVAC ( MVAC means mechanical ventilation and air conditioning) in the .

2021年1月11日 · Motor vehicle air conditioning (MVAC) equipment uses refrigeration to cool the driver's or passenger's compartment. Servicing of these systems is regulated under section 609 of the Clean Air Act.