Rheem RTEC-04 E03 Operation And Installation Instructions Manual page 12

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3--- After the unit is supplied with power, please turn on the water and then the appliance will start work. The
min water flow to activate the unit is 1.5L/min.
4--- Turn off the water flow, the appliance will stop working. It is not necessary to turn off the heater by
pressing any key on front panel.
5--- Press
to adjust the setting temperature between 30°C -55°C, Temperature setting will cycle
among
30°C-55°C -30°C, single press the key, the setting temperature will be up 1°C, only in the
working condition, the press key is available to adjust the temperature. The default setting temperature is
55°C.
6--- Press
continuously for 3 seconds, the setting temperature will be circularly setup among
38°C -42°C -55°C -42°C -38°C.
7---
is the function key, If you need to install the unit upside down, Please press
hold
for 3 seconds, the temperature display Arabic numerals will rotate 180°.
8--- There is overheat production function for the appliance, while the outlet temperature reaches 60°C, the
appliance will decrease the power level automatically, only after the hot water temp. drop to 53°C, it will
recover to work. In this state, you should reduce the setting temperature.
9--- There is real-time leakage detection function, while there is a leakage, the appliance will stop working
automatically.
10--- Please check hot water with hand before using. If the unit will not be used in winter, drain out water
completely so that the heater will not be frozen.
Please periodically clean inlet strainer and the shower to keep a free water flow.
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