STIEBEL ELTRON DHC-E 3/3.5-1 Trend Operation And Installation Manual page 11

OPERATION
Settings and displays
5.5.3 Parameters menu
The parameter menu allows multiple settings on the DHC-E Plus to
be altered. The parameter menu can be accessed by holding the
Information button for 5 seconds.
T parameter setting
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The first parameter menu sets the value for T
acts as a high temperature limiter. If the T
point of the water heater cannot be set above the T
feature is useful in scenarios where scalding from hot water is a
real possibility.
At the T setting menu, the temperature value will flash, indicating
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that the value can be changed by rotating the control knob. The T
value can be increased by turning the control knob clockwise, and
decreased by turning it counter-clockwise. The T
deactivated by turning the control knob counter-clockwise, past the
68 °F (20 °C) setting. The display will read "Off" if T
If the T symbol is visible at the base display, then the T
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is active and limiting the maximum allowable temperature.
Pressing the Information button once while at this menu will move
the display onto the temperature units parameter setting.
Temperature units parameter setting
The DHC-E Plus is capable of displaying temperature in either de-
grees Fahrenheit or degrees Celsius.
The current unit will be shown and the secondary display value will
be flashing to indicate that the value can be changed. Rotate the
control knob to change the value between degrees Fahrenheit and
degrees Celsius.
Pressing the Information button once while at this menu will move
the display onto the volume units parameter setting.
Volume units parameter setting
The DHC-E Plus is capable of displaying volume or volume flow in
either gallons per minute (gpm) or liters per minute (l/min).
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. The value of T
max max
value is set, the set-
max
value. This
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The current volume unit will be displayed and the value will be
flashing to indicate that it can be changed. Rotate the control knob to
change the value between gallons per minute and liters per minute.
Pressing the Information button once while at this menu will advance
the display to the electricity cost parameter setting.
Electricity cost parameter setting
The DHC-E Plus has a built-in feature where it calculates the energy
savings of the unit when compared to the average energy use of a
tank-type water heater. In order for this feature to be accurate, the
cost per kWh of electricity must be programmed into the software.
max
value can be
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is inactive.
max
function
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The secondary display will be flashing to indicate that the value can
be changed by rotating the control knob. Consult your electricity bill
to determine the cost of electricity per kWh.
Pressing the Information button once while at this menu will advance
the display to the display-lock parameter setting.
Display-lock parameter setting
The display can be locked to prevent easy alteration of the tempera-
ture setpoint. This menu will flash, indicating that the value can be
changed by rotating the control knob. While "Off" is displayed, the
lock is not active. The lock is active when the display reads "On".
If the display-lock parameter is set to "On" and the user either holds
the Information button for 5 seconds or lets the display time out for
15 seconds, the display-lock will become active.
With the display-lock active, a lock will appear on the base display,
and no parameters can be changed. In order to disable the lock, hold
DHC-E Trend & DHC-E Plus | 11