User Manual

07
GENERAL INFORMATION
The Marey mini tank water heaters can be used in most under the counter, point of use
applications. The Marey models are designed to supply hot water for all hand washing and
kitchen sinks in a residential, commercial or industrial environments.
The Marey mini tank water heaters are slow recovery, small reservoir, not intended for
showers or lling tubs.
Marey models can replace traditional central hot water heaters thereby conserving
water and reducing energy waste. Marey models can also be plumbed in series with the
central water heater and act as a booster.
The Marey mini tank water heaters are light weight, compact and designed for easy installa-
tion. Marey models can be wall mounted with included hardwares or oor mounted.
The Marey Tank 2.5 gallon and Tank 4.0 gallon are designed to operate at 150PSI maximum
water pressure. Install a pressure relief valve if your water pressure is greater than 150PSI.
Marey 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 outlet.
The thermostats on this water heater have been set at the factory to 51.7°C (125°F) or lower to
reduce the risk of scald injury. If you choose a higher temperature, be sure to locate the front
panel and temperature adjustment knob on the water heater. The recommended starting set
point is identied on the dial as 125°F (52°C). The red indicator at the center of the display will
illuminate when the water is heating. When the water in the tank is at the desired temperature,
the red indicator will NOT be illuminated. If you choose a higher temperature, be sure to read and
follow the warnings outlined on the label below. This label is also located on the water heater
near the top of the tank. Thermostatic Mixing Valves located at each point-of-use are particularly
important to help avoid scalding.
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 amma-
ble. 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 ow. There should be no smoking or open
ame near the faucet at this time.
CAUTION
TEMPERATURE
120°F
(49°C)
125°F
(52°C)
130°F
(54°C)
135°F
(57°C)
140°F
(60°C)
145°F
(63°C)
150°F
(66°C)
155°F
(68°C)
Time to produce
a serious burn
More than
5 minutes
More than
5 minutes
Less than
5 minutes
1.5 - 2
minutes
About
30 seconds
About
10 seconds
About
1.5 seconds
About
1 second