GENERAL OPERATING INSTRUCTIONS
Operating your new tankless electric water heater is similar to using any traditional water heating
system. However, it is very important that you carefully read all of the setup procedures and
operating instructions and tips to ensure the maximum performance and energy savings from
your new water heater. We recommend that all members of the household read these General
Operating Instructions.
How your new water heater works: This tankless electric water heater differs from a conventional
storage water heater as it does not store hot water, but heats water as it flows through the heater.
The temperature of the hot water delivered by the
heater depends on the wattage of the heating element,
temperature of the incoming cold water and the water
flow rate through the water heater.
It is important to keep in mind that all tankless electric
water heaters are subject to a maximum flow rate. The
heater will not be capable of heating water to desired
temperature if the flow rate exceeds heaters capability.
In order for the heater to operate properly, it must be
carefully matched to its application and aerators should
be used to limit water flow. See the Table I to determine
the maximum flow rates and temperature rise
for each model.
CAUTION: Outlet water temperature may be higher when using the tankless heater at low
flow rates or when used with high inlet water temperature.
Water Quality: Quality of water should be taken into consideration when installing and main-
taining the water heater. Water conditions outside the recommended levels outlined below are
not permitted and can damage the water heater. Manufacture reserves the right to deny any
warranty claim regarding damage suffered due to use in water conditions not in accordance with
the table below.
If water heater is installed in an area that is known to have hard water that cause scale build-up,
the water must be treated and/or the heater exchanger flushed regularly to prevent damage to
heat exchanger and/or heating elements.
A water treatment device or water softener should be installed to maintain optimal performance
of the water heater in hard water areas. Contact customer service for additional information on
these accessory kits.
Total Dissolved
Free Carbon
ph
Solids (TDS)
Dioxide (CO2)
Up to
6.5 - 8.5
500 mg/L
200 mg/L
USER INTERFACE
!
CAUTION:
Removing the cover to change the temperature set point exposes
electrical shock and burn hazards, which can cause INJURY or DEATH.
Adjustment should only be done by a licensed plumber or electrician.
!
DANGER:
Hotter water increases the potential for Hot Water SCALDS.
POWER:
DISPLAY
DECREASE
TEMPERATURE
CHART FOR RECOMMENDED WATER QUALITY LEVELS
Total
Aluminum
Hardness
Up to
Up to
0.05 to
500 mg/L
0.2 mg/L
OUTLET
Chloride
Copper
Up to
Up to
250 mg/L
1.0 mg/L
POWER ON/OFF
HOLD FOR CELSIUS / FAHRENHEIT
INCREASE
TEMPERATURE
10
INLET
Iron
Manganese
Zinc
Up to
Up to
Up to
0.3 mg/L
0.05 mg/L
5 mg/L