Eco-Smart ECO MINI 1 Installation And Operating Instruction page 7

ECO MINI models are designed to operate at 150 psi maximum water
pressure.
CAUTION!: The manufacturer cannot be responsible for the damage caused
by improper installation or by failure to follow instructions in this manual.
Comply with the Installation Instructions before connecting to electrical
supply.
CAUTION!: The thermostat has been pre-set at the factory between 50°F
(10°C) and 140°F (60°C).
CAUTION!: Hydrogen gas can be produced in a hot water system served by
this heater that has not been used for a long period of time (generally 2
weeks or more). Hydrogen gas is extremely flammable. To reduce the risk of
injury under these conditions, it is recommended that the hot water faucet
be opened for several minutes at the nearest and most distant sink being
served by this water heater before using any electrical appliance connected
to the hot water system i.e. Dishwasher. If hydrogen gas is present, there
will probably be an unusual sound such as air escaping through the faucet as
the water begins to flow. There should be no smoking or open flame near
the faucet at this time.
WARNING: Installer should review the contents of this manual with the
owner upon completion of the installation, and the manual should remain
with the owner and placed in a location close to the water heater.
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