True. In the context of a manifold used for evacuation purposes, the statement "both valves need to be closed" refers to the requirement of shutting off or sealing both valves connected to the manifold.
How are manifolds used
Manifolds are often employed in various industries, such as HVAC (Heating, Ventilation, and Air Conditioning) systems or refrigeration, to manage multiple inputs or outputs of gases or fluids.
When a manifold is used for evacuation, typically in vacuum processes or air conditioning maintenance, it's crucial to ensure a proper vacuum is achieved.
Once the system has been evacuated following the manufacturer's specifications, proceed to shut both valves and power down the vacuum pump.
Question
True/false Both valves need to be closed on a manifold to use it for evacuation