What considerations exist for the refrigeration system's compressor location?

• A. The compressor should be located indoors in a sealed space
• B. Outdoors or ventilated area to minimize flammability buildup; maintain clearance from walls and obstacles
• C. Place the compressor near walls for easier access
• D. Location does not affect safety

Answer: (B)

The main idea is that the compressor for a flammable-refrigerant system must be placed where any leaked vapor will not accumulate and where cooling and service access are safe. Locating the compressor outdoors or in a well-ventilated area helps rapidly dilute any leaked refrigerant, reducing the chance that a flammable vapor concentration could form and encounter an ignition source. Keeping ample clearance from walls and obstacles ensures good airflow around the unit for cooling and provides clear, safe access for maintenance, which also reduces the risk that leaked gas will linger near surfaces or equipment. Placing the compressor in a sealed indoor space or near walls can trap vapors and hinder ventilation, increasing fire risk and complicating service. The idea that location doesn’t affect safety is incorrect because ventilation and distance from potential ignition sources are critical controls for flammable refrigerants.