Portable Refrigerators for Use with HD-5 Propane Gas

ANSI Z223.74: Portable Refrigerators for Use with HD-5 Propane Gas

For engineers and designers working with portable appliances, ensuring safety and performance when utilizing propane fuel is paramount. ANSI Z223.74, "Portable Refrigerators for Use with HD-5 Propane Gas," provides the authoritative framework for achieving these critical objectives. This essential standard offers comprehensive guidance on the design, construction, and performance of portable refrigeration units powered by HD-5 propane, safeguarding users and ensuring reliable operation in diverse environments.

What is ANSI Z223.74?

ANSI Z223.74 is a foundational American National Standard developed through a collaborative effort involving industry experts. Its primary purpose is to establish minimum safety and performance criteria for portable refrigerators specifically designed to operate on HD-5 propane gas. This standard ensures that these appliances are constructed durably, function reliably, and pose minimal risk to operators and bystanders.

Scope & Purpose

This standard governs the design, manufacturing, and performance testing of portable refrigerators intended for use with HD-5 propane gas. It details requirements for materials, construction methods, gas containment, ventilation, ignition systems, and operational safety features. While it focuses on the appliance itself, it also references installation practices as they relate to safe gas utilization. Notably, it does not cover stationary refrigeration units or systems utilizing fuels other than HD-5 propane.

Who Must Comply?

• • Primary audience: Appliance designers, safety engineers, quality control inspectors, manufacturing technicians, and compliance officers involved in the production or certification of portable propane-powered refrigerators.
• • Industries affected: Appliance manufacturing, propane gas supply, outdoor recreation equipment, and camping gear industries.
• • Compliance nature: While voluntary for general market entry, compliance is often mandatory for product certification by testing laboratories and for sale in specific jurisdictions or to particular markets.
• • Enforcement: Compliance is typically verified by accredited third-party testing and certification bodies. Regulatory bodies may also reference this standard in their safety requirements.

Key Requirements Overview

Professionals adhering to ANSI Z223.74 must ensure their portable refrigerators meet stringent criteria. Key provisions include:

• • The standard requires robust construction to withstand typical portable use and environmental conditions.
• • Engineered gas systems must prevent leaks and ensure safe fuel delivery to the appliance.
• • Adequate ventilation is mandated to prevent the buildup of hazardous combustion byproducts.
• • Performance testing protocols are outlined to verify effective refrigeration and safe operational limits.
• • Ignition and flame failure control mechanisms are specified to ensure safe operation.

Related Standards & References

ANSI Z223.74 works in conjunction with other critical standards to ensure comprehensive safety and functionality. It is intrinsically linked with the National Fuel Gas Code (ANSI Z223.1), which provides broader guidelines for the installation and use of fuel gas appliances. Additionally, standards related to LP-Gas storage and handling are essential for the safe use of the fuel source itself. This integrated approach ensures a proven and comprehensive safety system.