10
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 ows 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
ow rate through the water heater.
It is important to keep in mind that all tankless electric
water heaters are subject to a maximum ow rate. The
heater will not be capable of heating water to desired
temperature if the ow 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 ow. See the Table I to determine
the maximum ow rates and temperature rise
for each model.
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 ushed 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.
OUTLET
INLET
CAUTION: Outlet water temperature may be higher when using the tankless heater at low
ow rates or when used with high inlet water temperature.
CHART FOR RECOMMENDED WATER QUALITY LEVELS
ph
Total Dissolved
Solids (TDS)
Free Carbon
Dioxide (CO2)
Total
Hardness
Aluminum Chloride Copper Iron Manganese Zinc
6.5 - 8.5
Up to
500 mg/L
Up to
200 mg/L
Up to
500 mg/L
0.05 to
0.2 mg/L
Up to
250 mg/L
Up to
1.0 mg/L
Up to
0.3 mg/L
Up to
0.05 mg/L
Up to
5 mg/L
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.
USER INTERFACE
POWER ON/OFF
HOLD FOR CELSIUS / FAHRENHEIT
INCREASE
TEMPERATURE
DECREASE
TEMPERATURE
POWER:
DISPLAY
!
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