EcoSmart ECO-21 Installation Instructions Manual page 18

SETTING THE OUTLET WATER TEMPERATURE:
The user controls on your new tankless water heater are very easy to operate. The digital display will
show your current set water temperature at all times that the water heater is running.
To set the temperature, start by turning on any water faucet. The digital display will light up and give
you the current temperature setting of the unit. To increase this setting, turn the control knob to
"Increase." or "Decrease." your temperature setting. You can set the temperature at any level between
80F (27C) and 140F (60C). To change the digital display from Fahrenheit to Celsius, simply press the
control knob for 3 seconds.
Most people feel comfortable showering or bathing at a temperature between 98 and 105F (37 to
41C). We recommend that you set the output water temperature of your water heater at either 105 or
110F (approx .41 - 43 C). This will ensure you have adequate hot water to meet all of your household
needs while also maximizing your available water flow rate, reducing the risk of scalding to children
and the elderly, and increasing the energy savings you achieve.
Note: All newer model dish washing machines are normally equipped with an internal heating
element, and most clothes washing detergents are now designed for use in cold or warm water. There
is no longer a need set your water heater to a temperature above 125F. Temperatures above this level
(which most traditional water heaters are set to deliver) can cause serious scalding injuries to small
children or elderly persons in your home.
If you ever detect a water leak from your water heater, turn off the water supply at the shut-off valve
on the inlet side of the water heater, turn off the power to the heater and call us for technical
assistance.
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