IVT Greenline D14 Manual To Installation, Commissioning And Maintenance page 58

Displays you might need to adjust or check settings
Temperature settings
Heat curve
hysteresis
Return Select
Hot water setting
Setting of hot water
temperature
Return Select
Hot water setting
Setting of
DHW hysteresis
Return Select
Mixed add. heat
Time delay for
mix. valve SV1 8.3.1
Return Select
Mixed add. heat
Time delay for
stop boiler
Return
Mixed add. heat
Setting of
ramp time open 8.3.4
Return
Mixed add. heat
Setting of ramp
time close
Return Select
Additional heat
Show mixing valve
opening
Return Select
1.4
2.3
2.4
8.3.2
Select
Select
8.3.5
8.6
Setting the hysteresis for the heat pump on and off switch-
ing on the return sensor radiator T1 (GT1). A low value
gives closer intervals between start and stop.
Setting the temperatures in the hot water cylinder's outer
shell. Note that the temperature does not correspond to the
temperature in the hot water cylinder itself. Set too high and
the heat pump can shut down on a high return or high
pressure switch.
Setting of hysteresis for the hot water temperature. The
value measures under and over the set value in 2.3
Mixing valve's opening is delayed after the boiler starts so
that cold water is mixed into the system before the boiler
has heated up. You can change the time here.
For safety reasons on the boiler, there is a time delay from
the mixing valve not receiving an open signal and the boiler
closing down completely. When the boiler closes down
completely the additional timer must go down to zero again.
Ramp time open and close is the time the mixing valve
takes to go from closed to fully open and from fully open to
closed. In some cases the ramp time can open, 8.3.4 needs
to be adjusted to eliminate overexciting the system.
Here you can see if the mixing valve to the oil-fired boiler
opens or shuts.