When performing a mechanical integrity inspection of a ceiling suspended air-cooling evaporator, it is vital that the nuts and washers which are used to attach the unit to it’s support are sufficiently tight. All-to-often we find nuts that have loosened due to vibration or missing washers. A ceiling suspended evaporator is designed to be supported […]
Question: Is it permissible to use galvanized pipe on pressure relief valve discharge piping? Answer: As a “best practice” we recommend using the same piping materials for the closed circuit refrigeration system as for the relief valve discharge piping. Specifically, IIAR-2 states that piping in the closed circuit portion of the system should be of […]
In the fresh fruit and vegetable industry in Central California, it is very common for facilities to use bunker-mounted air-cooling evaporators. A typical installation of a bunker-mounted evaporator can been seen in the schematic below: Performing a mechanical integrity inspection of a bunker-mounted evaporator requires many of the same inspection protocols that any air-cooled evaporator […]
Question: Do I have to use an ammonia rated hose when draining or transferring ammonia from a refrigeration system? Answer: The short answer is “ABSOLUTELY“. OSHA has been far from silent on this issue and has made it clear that ammonia rated hose must be used for any anhydrous ammonia activity that requires a hose, […]
Although Emergency Control Boxes (ECB) are no longer required by the current Fire Codes, most systems across the country are still equipped with an ECB that must be maintained and inspected during a mechanical integrity inspection. So what should an inspector look for when inspecting an ECB? Here are a few points to consider… The […]
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