12
EN
Part 6 - Operation
The water heater must be full of water before the power is turned on. The heater will be damaged if energized
for even a short time while dry. Failures due to “dry-firing” ARE NOT covered by warranty.
This tankless electric water heater is designed to supply hot water instantaneously on demand. The unit contains
heating elements capable of heating water quickly for as long as necessary. Unlike a conventional tank storage
water heater, this tankless water heater does not store hot water. A tankless system is more efficient because it
does not waste energy continually heating water that is idly sitting and losing heat in a storage tank.
As soon as a demand for hot water is detected the heating elements are activated. Sensors continually monitor
water flow rate and incoming and outgoing temperature and transmit data to the system controller, which
determines the exact amount of power required by the heating elements to reach the set temperature.
Operating this tankless water heater is similar to using any traditional water heating system. However, it is very
important to carefully read all of the setup procedures and operating instructions in this manual to ensure the
maximum performance and energy savings from the water heater.
115 F
o
Figure 8 - User Interface Detail
A. User Interface / Controls
Power
• Press the button. The display will power on.
• Press again. The display will turn off.
Setting the Output Water Temperature
• To set the temperature, first turn on a hot water faucet and allow water
to run through the heater. The digital display lights up and shows the current temperature setting.
• Press to increase or to decrease the temperature.
• Temperature can be set to any level from 86 - 122
o
F (30 - 50
o
C).
• A comfortable temperature for bathing and showering is between 105 and 110
o
F (41 and 43
o
C).
• The recommended temperature setting is 118
o
F (48
o
C), which will deliver hot water for all household needs
at a maximum water flow rate.
• A higher temperature setting is not recommended, as it can cause serious scalding injuries to children and
elderly persons. Higher temperatures also produce more scale buildup in water heating devices.
115 F
o
Figure 9 - Display and Inlet / Outlet Detail and Locations
B. Start-Up
1. Press the button to activate
the heater. The display will
show the outlet temperature.
2. With the water running
through the unit, press to
increase or to decrease
the outlet temperature. The
recommended temperature
setting is 118
o
F (48
o
C).
Do not attempt to repair this water heater yourself. Call a qualified service technician for assistance. Always
turn off the power supply to the heater prior to servicing or draining the heater. Failure to do so could result in
property damage, severe personal injury, or death.
Part 7 - Maintenance
For most of these maintenance operations, the water will have to be drained from the heater. For all of these
operations, the power should be turned off at the circuit breaker and the front cover removed.