Interview Question

Stationary Engineer Interview

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ABM Industries

How does the HVAC system work in a building.

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Interview Answer

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when liquid refrigerant changes state to gas it absorbs heat, when a gas is compress to a liquid it sheds heat. So like a sponge soaking up water and squeezing it out somewhere else we are able to move heat around. Yes there are a lot of dynamics but the basics stay the same.

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