Adapting the unit to the heating installation 7
0020214491_01 ecoTEC plus Installation and maintenance instructions 23
7 Adapting the unit to the heating
installation
7.1 Calling up diagnostics codes
You can use the parameters that are marked as adjustable
in the overview of diagnostics codes to adapt the product to
the heating installation and the needs of the customer.
Overview of diagnostics codes (→ Page 31)
▶
Press and below the display at the same time.
◁ The display shows D.0 (heating partial load).
▶
Press .
◁ The display shows the associated diagnostics inform-
ation.
▶
If required, use or to change the value (the display
flashes).
▶
Save the new value by pressing and holding for ap-
prox. five seconds until the display no longer flashes.
▶
Exit Diagnostics mode by pressing and at the
same time or by not pressing any button for four minutes.
◁ The current heating flow temperature appears in the
display.
Note
If you activate the installer level (second dia-
gnostics level), all of the diagnostics codes are
visible and accessible.
7.2 Calling up the installer level (second
diagnostics level)
▶ In the first diagnostics level, scroll to D.97.
▶ Change the displayed value to 17 (password).
▶ Save the setting.
7.3 Setting the heating partial load
The product's heating partial load is set to 46 kW at the fact-
ory. You can specify a value that corresponds to the product
output in kW under diagnostics code D. 0.
7.4 Setting the pump overrun and pump
operating mode
You can set the pump overrun under D.1 (default setting: 5
min.).
You can set the overrun behaviour of the pump to a different
mode under D.18.
Overrun: After ending the heating demand, the pump over-
runs the time that is set under D.1.
Continuous: The pump is switched on if the rotary knob for
setting the heating flow temperature is not at the left-hand
stop and the heat requirement is enabled by an external con-
troller.
Intermittent: This pump operating mode is useful for remov-
ing residual heat after charging when the heat demand is ex-
tremely low and large temperature differences exist between
the cylinder charging and heating mode target values. This
prevents the living rooms from overheating. If there is a heat
demand, the pump is switched on every 25 minutes for 5
minutes once the overrun time has elapsed.
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