UL 1963-2021 pdf free download.Refrigerant Recovery/Recycling Equipment. 3.18 FUNCTIONAL PART — A part of the product, other than an enclosure or cabinet, used to maintain the intended relative physical position of fixed or moving parts, or maintain the integrity of the structure. 3.18.0 GROUNDING. FUNCTIONAL — Grounding of a point in a product which is necessary for a purpose other than safety. 3.18.1 HOSE ASSEMBLY — A segment of flexible, usually nonmetallic, tubing and having a threaded fitting at each end for the purpose of connecting two components of a refrigeration system. 3.19 IGNITION SOURCE — Any high-voltage electrical component not located within an enclosure. 3.19.1 MAXIMUM OPERATING CURRENT (MOC) — The current resulting when an electric motor and adjustable speed drive or drive system are operated under any conditions such as maximum speed/maximum load, maximum speed/minimum load, minimum speed/minimum load, minimum speed/maximum load, including locked-rotor such that current to the motor/adjustable speed drive or drive system is at a maximum. 3.19.2 MAXIMUM RATED CURRENT (MRC) — The current resulting when a hermetic refrigerant motor- compressor and adjustable speed drive or drive system are operated under any conditions such as maximum speed/maximum load, maximum speed/minimum load, minimum speed/minimum load, minimum speed/maximum load, including locked-rotor such that current to the motor- compressor/adjustable speed drive or drive system is at a maximum. 3.20 MOTOR CONTROLLER — Any switch or device normally used to start and stop a motor by making and breaking the motor current directly. 3.21 NONFUNCTIONAL PART — A part of the product that does not perform a specific function. 3.22 NONFUNCTIONAL PART, SMALL — A nonfunctional part that does not occupy a volume greater than 0.12 in3 (2 cm3), does not have a dimension greater than 1.2 in (3 cm), is located so it cannot propagate flame from one area to another, and does not connect a possible source of ignition to other ignitable parts. 3.23 PIPING — Includes pipe, flanges, bolting, gaskets, valves, fittings, the pressure-containing parts of other components, such as strainers and devices that serve such purposes as mixing, separating, muffling, snubbing. distributing, metering, or controlling flow. 3.24 PRESSURE-LIMITING DEVICE — A pressure-responsive mechanism designed to automatically stop the operation of the pressure-imposing element at a predetermined pressure. 3.25 PRESSURE-RELIEF DEVICE — A pressure-actuated valve or rupture member designed to relieve excessive pressure automatically. The device is not temperature-actuated, 3.26 PRESSURE VESSEL — Any refrigerant-containing receptacle...
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