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Warning – State GS6 75 YRVHTL User Manual

Page 43

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“AIR” IN HOT-WATER FAUCETS

Flammable hydrogen gases may

be present.

Keep all ignition sources away

from faucet when turning on hot
water.

Explosion Hazard

WARNING

HYDROGEN GAS: Hydrogen gas can be produced in
a hot-water system that has not been used for a long
period of time (generally two weeks or more). Hydrogen
gas is extremely fl ammable and explosive. To prevent
the possibility of injury under these conditions, it is
recommended that the hot-water faucet, located farthest
away, be opened for several minutes before any electrical
appliances which are connected to the hot-water system
are used (such as a dishwasher or washing machine). If
hydrogen gas is present, there will probably be an unusual
sound similar to air escaping through the pipe as the hot-
water faucet is opened. There must be no smoking or open
fl ame near the faucet at the time it is open.

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