What is UL 60335 2 89 standard ?

Title: A Comprehensive Guide to UL 60335-2-89: The Safety Standard for Commercial Refrigeration Appliances

The UL 60335-2-89 standard is a crucial safety guideline for commercial refrigeration appliances. Developed by Underwriters Laboratories (UL), this standard is designed to ensure the safe operation of these appliances and protect the health of users. In this article, we will delve into the key aspects of the UL 60335-2-89 standard, including its scope, coverage, and safety testing requirements.

Scope and Coverage of UL 60335-2-89

a. Scope:

UL 60335-2-89 is a technical standard that covers the safety requirements for commercial refrigeration appliances. It applies to all commercial refrigeration appliances, including standalone and split systems, that are intended for indoor use in commercial settings.

b. Coverage:

The UL 60335-2-89 standard applies to various types of commercial refrigeration appliances, such as:

Refrigerators: Counter, chest, and walk-in refrigerators.

Coolers: Standalone and split coolers.

Freezers: Standalone and split freezers.

Display cases: Standalone and split display cases.

Bins: Refrigeration bins and waste bins.

Cooling Systems: Air-conditioning and heat-pump systems.

The standard also applies to accessories, such as:

Enclosure systems: Refrigeration enclosures, coolers, and freezers.

Accessories for installation: Refrigeration installation brackets and accessories.

The UL 60335-2-89 standard aims to ensure the safe operation of commercial refrigeration appliances in indoor environments, including:

Electrical safety: Ensuring that electrical components are properly insulated, grounded, and have appropriate labeling.

Fire protection: Providing fire-resistant materials for electrical components and ensuring proper fire alarms and sprinklers.

Security: Implementing physical security measures to prevent unauthorized access to the appliance.

Maintenance and repair: Prohibiting the use of damaged or non-functional components, and providing instructions for routine maintenance and repair.

User awareness: Providing information to users on the safe operation and maintenance of the appliance.

Safety Testing Requirements

a. Electrical Safety Testing:

To ensure the safety of commercial refrigeration appliances, they must undergo electrical safety testing according to UL 60335-2-8This testing verifies that the appliance meets the standard's electrical safety requirements.

b. Fire Protection Testing:

UL 60335-2-89 requires manufacturers to perform fire protection testing to ensure that their appliances can withstand a fire without posing a risk to the user or others.

c. Security Testing:

To prevent unauthorized access to commercial refrigeration appliances, manufacturers must implement security features according to UL 60335-2-8These features may include:

Physical security: Appliance manufacturers must provide a physical barrier between electrical components and users to prevent accidental contact.

Access control: Manufacturers must implement access control measures to prevent unauthorized access to the appliance.

User awareness: Manufacturers must provide information to users on the security features and their role in maintaining the security of the appliance.

Conclusion:

UL 60335-2-89 is an essential safety standard for commercial refrigeration appliances. It sets guidelines and requirements for manufacturers to ensure safe and reliable operation of these appliances. By following the UL 60335-2-89 standard, manufacturers can provide assurance to users that their refrigeration appliances are safe, reliable, and meet the necessary safety requirements.