Installation / Operation Instruction Manual

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your needs. NOTE: This water heater, when set at a lower temperature setting, is not capable of producing hot water of
sufficient temperature for sanitizing purposes.
During the winter season or any cold period, you may desire a higher temperature setting to adjust for the colder incoming
water. This adjustment, however, may cause additional condensation to form on the cooler tank surface. This does not
mean the tank is leaking. During summer months, the warmer incoming water temperatures will benefit the performance of
your water heater and reduce the amount of condensation developed.
TEMPERATURE ADJUSTMENT (24V CONTROL SYSTEM)
The water heater temperature setting is adjusted by using the control display mounted to the front of the control panel of
the water heater. The water heater thermostat is set at the lowest setpoint of 70°F when shipped from the factory. The
control display shows the temperature setpoint in degrees Fahrenheit (°F) or degrees Celsius (°C), and the status of the
water heater (“Idle” or “Heating”). If the water heater is functioning normally, the display will also show “Operational”.
For energy efficient operation of your water heater, the suggested initial temperature setting is 120°F (49 ° C). During the
winter season, or any cold period, you may desire a higher temperature setting to adjust for the colder incoming water.
This adjustment, however, may cause additional condensation to form on the cooler tank surface. This does not mean the
tank is leaking. During summer months, the warmer incoming water temperatures will benefit the performance of your
water heater and reduce the amount of condensation developed.
Condensation does not mean your tank is leaking. Over 40% of reported tank leaks on installation are proven to be
condensation. To avoid unnecessary expense and inconvenience, make sure the tank is leaking before calling a service
person.
SELECT
SET
Status
Set button
Select button
Temperature
Down Button
Temperature
Up Button
°F
idle
setpoint
Operational
Sequence of
operation Indicator
Reads "Idle” or “Heating"
Status Indicator
Read
"Operational"
or "Service Needed"
Shown flashing
in display only when
temp is adjusted
Temperature Setpoint
in Degrees F or Degrees C
Range 70 - Max °F
Range 21 - Max °C
Water Heater Display and Control Buttons
If the water heater display does not show ‘‘Operational’’ in the ‘‘Status’’ indicator, there may be an operating
malfunction with the water heater. If this is the case, a numeric code will be displayed. Refer to the label next
to the display for the definition of the error code and call your plumbing professional or service agent to
service the w ater heater. Do not try to reset the w ater heater w ithout having a qualified service person to
diagnose and correct the problem. If the display is blank or does not show an error code, make sure there is
pow er to the water heater.
Setting the water temperature to the maximum set point can result in scalding hot water delivered to the
faucets. It is highly recommended that the maximum setpoint be adjusted to the lowest temperature possible
for the needs of the installation. See following section to change the maximum setpoint limit (max setpoint).
Make sure the water heater control display is not in a public area that can result in the temperature settings
WARNING
When the maximum setpoint is reached, the display will show ‘‘Max Setpoint’’ without the setpoint value.
The maximum setting is equal to approximately 180˚F (82˚C).
The default temperature setpoint from the factory is 70˚F (21˚C).
NOTICE