24
OPERATING THE WATER HEATER
SAFETY PRECAUTIONS
1. DO turn o power to water heater if it has been subject to overheating, fire, flood, physical damage.
2. DO NOT turn on water heater if cold water supply shut-o valve is closed.
3. If there is any diculty in understanding or following the Operating Instructions or the Care and Cleaning
section page 40, it is recommended that a qualified person or serviceman perform the work.
GENERAL PRINCIPLE OF OPERATION
HOW DOES IT WORK?
Your EXR is the first water heater of its kind: it brings you all the advantages of tankless combined with a
tank: that’s how we achieve performance and durability.
Your Essency water heater works a bit dierently from other water heaters: you are not consuming the
55 gallons of water that are stored in the tank, but this “static water” is only acting as a heat source. When
you draw hot water, the domestic water is run through a heat exchanger, where the heat from the water
in the storage tank (heated at up to 160°F, depending on the selected operation mode) is instantaneously
transferred to the domestic water, to obtain water at the desired set temperature. All you have to do is to
select the temperature of the water you want to get out of the faucet (you can set from 104°F to 132°F)
and Essency does the rest!
• Essency uses two electric heating elements to heat the static water, one in the lower section of the tank,
and one in the upper section.
• The tank is only filled once, during initial installation of the unit, and the water remains in there throughout
the life of the water heater with a refilling of few gallons per year. This greatly reduces the formation of
scale inside the tank, thus increasing the life of the tank itself and key components, such as the heating
elements.
• You can control your water heater directly on the unit using the touchscreen, or from your smartphone
with the Essency App, which can be downloaded on the Apple and Google stores.
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