The unit should be configured by the installer to match the installation environment (outdoor climate, installed options, etc.) and user
expertise.
CAUTION
It is important that all information in this chapter is read sequentially by the installer and that the system is configured as applicable.
The Climate related curves can be selected in the user
interface.
Once the curve is selected, the target outlet temperature. In
each mode, user can select one curve from curves in the user
interface(curve can’t be selected if dual room thermostat
function is enabled.
It’s possible to select curves even dual room thermostat
function is enabled. This function is for customized .
The relationship between outdoor temperature (T4/°C) and the
target water temperature(T1S/°C) is described in the table and
picture in the next page. )
NOTE
If dual room thermostat function is enabled, only curve 4 can
be used, for customization product, curve selection is possi-
ble even dual room thermostat function is enabled.
The terms related to this unit are shown in the table below.
Parameter Description
AHS
Additional heating source
DHW
Domestic hot water
IBH1
The first backup heater
IBH2
The second backup heater
Pe
Evaporate/condense pressure in cooling/
heating mode
T1
Water outlet temperature from the additional
heat source (backup heater or boiler)
TW2
Mixed circuit temperature
T1S
Setpoint per la temperatura di uscita dell’acqua
T2
Temperature of refrigerant at let outlet /inlet of
plate heat exchanger when in heating mode/
cooling mode
T2B
Temperature of refrigerant at let outlet /inlet of
plate heat exchanger when in heating mode/
cooling mode
T3
Temperature of tube at outlet/inlet of
condenser when in cooling/heating mode
T4
Ambient temperature
T5
Temperature of domestic hot water
Th
Suction temperature
Tp
Discharge temperature
TW_in
Inlet water temperature of plate heat
exchanger
TW_out
Outlet water temperature of plate heat
exchanger
TBH
Backup heater in the domestic hot water tank