Installation and operating instructions INOVA ND
31
English
NOTE: If the control mode
Δ
p-c is active while Auto-Pilot is
activated, the control mode automatically switches to
Δ
p-v.
This is indicated by the
Δ
p-v symbol flashing five times.
Factory setting: Auto-Pilot OFF
8.5
Activation of the setback operation
Press and turn the white button to select the symbol for the
setback operation.
Press and turn it again to activate (ON)
or deactivate (OFF) the setback operation.
When setback operation is enabled, the pump follows the set-
backoperation of the heating system with electronic evaluation
of a temperature sensor. It then switches to minimum speed.
When the heat generator heats up again, the pump switches
back to the pre-set setpoint stage.
Factory setting: Setback operation OFF
8.6
Hold function (key lock)
The key lock locks the settings on the pump, thus protecting it
from unintended or unauthorized adjustments to the pump.
Select the symbol for venting; this allows activation of the key
L
ock by pressing and turning the white button. Hold the white
button down for 10 seconds. The message "Hold" appears on
the display. By turning, the key lock can now be activated (ON)
or deactivated (OFF).
If the key lock is activated, the pump settings cannot be
changed. After 10 seconds the display shows power consump-
tion and the power consumption meter again. If the whitetbut-
ton is pressed, "Hold" appears on the display.
To deactivate the key lock, repeat the steps as for activation.
Factory setting: Hold function OFF
