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OPERATION
Settings and displays
ENGLISH
www.stiebel-eltron-usa.com DHX Trend & DHX Plus | 9
5.4.1 Base display
The base display shows the current temperature setpoint in your
preferred temperature unit.
Changing the setpoint temperature
Temperature settings
Range Increment Range Increment
68–140 °F 1 °F 20–60 °C. 1 °C
The setpoint temperature can be set between 68 °F (20 °C) and 140 °F
(60 °C).
The setpoint can be increased by turning the control knob clockwise,
and decreased by turning it counter-clockwise. The water heater
can be deactivated while still powered by turning the control knob
counter-clockwise, past the 68 °F (20 °C) setting.
5.4.2 Temperature units parameter setting
The DHX Trend is capable of displaying temperature in either Fahr-
enheit or Celsius.
f To change between Fahrenheit (default) and Celsius, first rotate
the control knob to the left until the display reads “Off.”
f Once “Off” is showing on the display, turn the control knob 5
full 360° rotations to the left. This will open the temperature
parameter menu:
Turn full 360°
5 times to the left
Turn full 360°
5
t
i
mes to the le
f
t
The current unit will be shown and the display will be flashing to
indicate that the value can be changed. Rotate the control knob to
change the value between Fahrenheit and Celsius.
5.4.3 Returning to the base display
The display will revert to the base display after a 30-second period
with no user input.
5.5 DHX Plus display
The DHX Plus features a primary and secondary display area al-
lowing for multiple parameters or information to be displayed. The
DHX Plus is capable of displaying the current flow rate of the water
passing through the water heater, as well as calculating the accu-
mulated cost savings of having a tankless water heater compared
to a tank-type water heater.
For the name of each display element on the DHX Plus, consult
section 5.2.1, “DHX Plus display overview”, pg. 8.
5.5.1 Base display
The DHX Plus base display shows the current setpoint temperature
in your preferred temperature unit in the top half of the display.
The bar below the temperature shows the current fraction of total
capacity that the water heater is running at. As the hot water demand
fluctuates, the power capacity status will change to show between
0 and 10 segments. The display below shows that the water heater
is operating at 30% of full capacity.
The bottom half of the display shows the current flow rate through
the unit in either gallons per minute (gpm) or liters per minute (l/
min).
All other menus will revert back to the base display either after a
15-second period of time without user input, or after a 5-second
hold of the Information button.
Changing the setpoint temperature
Temperature settings
Range Increment Range Increment
68–140 °F 1 °F 20–60 °C 0.5 °C
The setpoint temperature can be set between 68 °F (20 °C) and 140 °F
(60 °C).
The setpoint can be increased by turning the control knob clockwise,
and decreased by turning it counter-clockwise. The water heater
can be deactivated while still powered by turning the control knob
counter-clockwise, past the 68 °F (20 °C) setting.
5.5.2 Information menu
The information menu structure displays additional information for
the user. The information menu is accessed by pressing the Infor-
mation button while at the base display.
Accumulated cost savings display
If the Information button is pressed while the display is showing
the base display, the display will advance to the accumulated cost
savings display.
The accumulated cost savings display will display the current set-
point temperature in the top half of the display, and the bottom half
of the display will alternate between “Cur” and the accumulated
savings of the water heater.
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