water system vs installation

water system and installation both are nouns.

Word	Noun	Adjective	Verb	Adverb
water system	Yes	No	No	No
installation	Yes	No	No	No

As nouns, installation is a hypernym of water system; that is, installation is a word with a broader meaning than water system:

water system: a facility that provides a source of water
installation: a building or place that provides a particular service or is used for a particular industry

Other hypernyms of water system include facility.

water system (noun)	installation (noun)
a facility that provides a source of water	the act of installing something (as equipment)
a river and all of its tributaries	a building or place that provides a particular service or is used for a particular industry
	a formal entry into an organization or position or office