Important Points To Check; Technical Information; Table Of Factory Settings - IVT Greenline D14 Manual To Installation, Commissioning And Maintenance

Important points to check

During the first period after commissioning you should pay special attention to the pressure levels in
the heating system and heat transfer circuit. It might need filling up.
The factory setting of the motor cutout is based on a value during hot water charging and a stable
voltage. Because of the fluctuating voltages on the mains supply the recommended settings are not
always suitable and can therefore need adjusting from time to time. This is best achieved using a clip-
on ammeter during hot water operation.
For the heat pump to perform at its best, it is important to check the flow on the hot and cold side of
the heat pump. Usually, the heat transfer fluid pumps each have a speed selector switch. These must
be set correctly for the pressure drop in the systems. A recommended temperature difference over
the heat pump on the cold side is between 2-3°C and on the hot side between 7-10°C. You can
check this with the help of the sensor temperatures in line three of the control panel.
It is also important that the flow in the radiator system exceeds the flow across the heat pump. If this
is not the case, the heat pump flow goes back via the bypass to the heat pump return, which may
cause the heat pump to trip for high return temperature. The flow through the radiator system must
be high enough to ensure that the entire surface of the radiators is kept hot. This maximises the heat-
radiating surface and so keeps down the flow temperature from the heat pump.
After testing, vent the system again and top up with cold water if necessary.

Technical information

Table of factory settings

The table shows the factory settings of all the settings that can be changed by the installer.
Position Setting of
P1.1 Temp. incr. / decr.
P1.2 Temp. fine-tune
P1.3 Heat curve adjustm.
P1.4 Heat curve. hysteresis
P1.5 Mix. valve incr/decr
P1.6 Mix. valve fine-tune
P1.7 Mix. valve curve adjustm.
P1.8 Mix. valve curve neut. zone
P1.9 Mix. valve curve max. temp.
P1.10 Room temperature
P1.11 Room sensor influence
P1.12 Holiday function
P1.13 Remote control temperature not active
P1.14 Summer disconnection
P1.16 Return thermostat stop
P1.17 Return thermostat hyster.
P2.1 Extra DHW
P2.2 DHW peak interval
Factory
Position
setting
P2.3
4
P2.4
0ºC
P4.1
0ºC
P4.1.1
5ºC
P4.2
4
0ºC P4.3
P5.1
0ºC
P5.2
3ºC
P5.4
60ºC
P5.5
20ºC
P5.7
5
P5.10
0 days
P5.11
P8.1
18ºC
P8.3.1
48ºC
P8.3.2
5ºC
0 hours P8.3.6
not active
60
Setting of
DHW-temperature
DHW hysteresis
Clock setting HP
Setting level HP
Clock setting add. heat
Clock setting DHW
Select operation mode
Conn. cap. electrical cass.
Only add. heat
Add. heat yes/no
External controls
Operation alt., P2
Operation alt., P3
Add. heat timer
Time delay SV1
Time delay for stop boiler
Setting of SV1 runtime
Factory
setting
45ºC
5ºC
not active
0ºC
not active
not active
A
2/3
Off
yes
0
On
Off
60 minutes
30 minutes
60 minutes
1 minute