Where should refrigerant circuit access ports located outdoors be fitted?

Refrigerant circuit access ports located outdoors should be fitted with tamper-resistant caps to enhance the safety and integrity of the refrigeration system. This requirement is based on the need to prevent unauthorized access to the refrigerant, which can pose environmental risks or safety hazards if the refrigerant is improperly extracted or if the system is tampered with.

Tamper-resistant caps serve as a deterrent against untrained personnel or individuals attempting to service or manipulate the refrigeration system without proper knowledge. Additionally, these caps help protect the refrigerant from contamination by debris or moisture, which could compromise the performance of the system. In environments where outdoor equipment is exposed to the elements or potential vandalism, ensuring that access ports are secured with tamper-resistant caps is a critical safety measure dictated by best practices in the industry.

By contrast, standard caps, removable caps, or caps with safety locks do not provide the same level of protection or deterrent against unauthorized access and possible harm to both the system and the environment.