Flow rate to activate the water heater : 0.5 gallons per minute at the
default set temperature
Flow rate to keep the water heater running : 0.4 gallon per minute
Hot Water temperatures over 125F (52°C) can cause severe burns instantly or
death from scalding.
The outlet hot water temperature of the water heater is factory
set at 122°F (50°C).
Feel the water temperature before bathing or showering.
NORMAL OPERATION
GENERAL
Mix cold water with the hot to get
the correct temperature water.
*If a remote controller installed, turn the remote controller ON by pressing the power ON/OFF button
on the remote controller and then set the temperature by pressing the HOT/COLD buttons before
opening a hot water tap. The temperature is displayed when the remote controller is turned ON.
TEMPERATURE SETTINGS
-Without remote controller-
Depending on the model, there are 4 or 8 temperatures that you can select from by changing the
dipswitch settings on the computer board without the remote controller. See the table below.
310 (T-K4)
113F 122F 131F 140F
For detailed dipswitch settings for each temperature, refer to the next page.
The temperature has been preset at the factory to 122°F (50°C).
If temperatures other than the ones listed above are required, the remote controller can
provide several more temperature options. Refer to p. 9 for a list of available temperatures on
the remote controller.
This water heater is an on-demand, tankless water heater designed to efficiently supply
endless hot water without reference to temperature settings.