OPERATION
Settings and displays
8 | DHX 15 Select www.stiebel-eltron-usa.com
5.2 Using the display menus
The DHX Select features an interactive display that allow for user
customization to increase the level of comfort for the user.
The menu structure is designed in an intuitive, linear way to make
it as navigable as possible.
5.2.1 DHX Select user input
User input
T
max
button (pressing or holding this button
performs different functions)
Preset 1 button (pressing or holding this button
performs different functions)
Preset 2 button (pressing or holding this button
performs different functions)
Control knob (turn knob to change settings)
5.3 DHX Select display
The DHX Select display features a temperature and power capacity
display. The display is backlit and will illuminate whenever user
input is detected. The backlight will time out and deactivate if no
user input has been detected for 30 seconds.
For the name of each display element on the DHX Select, consult
section 5.1.1, “DHX Select display overview”, pg. 7.
5.3.1 Base display
The base display shows the current temperature setpoint in your
preferred temperature unit. The bar below the temperature shows
the current operating capacity. 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 oper-
ating at 40% of full capacity.
All other menu displays will revert back to the base display either
after a 15-second period of time without user input, or after a 5-sec-
ond hold of the T
max
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.
5.3.2 Parameters menu
While at the base display, holding the T
max
button for 5 seconds will
advance the display to the first parameter menu.
T
max
parameter setting
The first parameter menu sets the value for T
max
. The value of T
max
acts as a high temperature limiter. If the T
max
value is set, the set-
point of the water heater cannot be set above the T
max
value. This
feature is useful in scenarios where scalding from hot water is a
concern.
At the T
max
setting menu, the display will flash, indicating that the
value can be changed by rotating the control knob. The T
max
value
can be increased by turning the control knob clockwise, and de-
creased by turning it counter-clockwise. The T
max
value can be de-
activated by turning the control knob counter-clockwise, past the
68 °F (20 °C) setting. The display will read “Off” if T
max
is inactive.
If the T
max
symbol is visible at the base display, then the T
max
func-
tion is active and is limiting the maximum allowable temperature
to the preset level.
Pressing the T
max
button once while at this display will move the
display onto the temperature units parameter setting.
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