Which action would be the recommended step when ice obstructions are found in cold storage penetrations?

• A. Inspect additional piping
• B. Remove obstruction from piping
• C. Remove entire system from service
• D. Check end of line remote part of the system

Answer: (A)

When ice forms in cold storage penetrations, you first need to gauge the scope of the problem. Inspecting additional piping helps determine whether the icing is confined to one penetration or is widespread throughout the system. This information is crucial for planning a safe and effective response, such as identifying whether insulation, ventilation, or temperature controls need adjustment and ensuring you don’t miss other blocked paths that could affect system performance.

Clearing an obstruction right away can be risky if other penetrations are also iced or if the ice indicates a broader freezing issue. Removing an obstruction without knowing the extent might push debris or cause unintended flow changes, and it won’t address the underlying cause. Drastically taking the entire system out of service is usually unnecessary and overly disruptive. Checking the end of line remote parts of the system can be part of the follow-up, but the best first step is to inspect additional piping to understand the full picture.