USER MANUAL – Release 1.2 of 01/01/2010 Page 39 of 191
Maximum antilegionella activation time
The antilegionella cycle is disabled after the time FS20 even though the
working set point is not achieved.
Heaters deactvation band for antilegionella function
The electric heaters activated for the antilegionella function are disabled
(before expiration of FS20) if the water temperature exceeds FS14
(antilegionella set)+FS21
Water set point for solar panels integration.
Defines the solar panels working set point.
Proportional band for solar panels integration
Minimum set for solar panels integration
Minimum limit for the solar panels set point.
Maximum set for solar panels integration
Maximum limit for the solar panels set point.
Delay on inversion of domestic hot water outputs from water pump activation
Delay on disabling of domestic water pump from outputs inversion
Domestic hot water pump operating mode:
0 = On demand. The pump is activated only when domestic hot water is
required.
1 = Continous. The pump is always active when the unit is active. FS26 and
FS27 delays are ignored
Minimum domestic hot water function interruption in case of disabling from
domestic hot water safety probe and minimum time between two interruptions
Domestic hot water interruption set point.
Defines the temperaute level sensed by the domestic hot water safety probe
for the interruption of domestic water function
Domestic hot water interruption differential.
Defines the differential between disabling and reactivation of the domestic hot
water function
Superheating set point for activation of the charge modulating valve.
After activation of the cooling + sanitary water function the circuit charge
modulating valve is activated if the superheating is higher than FS32
Superheating band for deactivation of the charge modulating valve
Charge modulating valve maximum activation time
Inlet water temperature set point for modifying the charge modulating valve
set point and band.
Inlet water temperature band for modifying the charge modulating valve set
point and band.
Modified superheating set point
Modified superheating band
Charge modulating valve ON time
Charge modulating valve OFF time
Forced outdoor fans activation during domestic hot water function activation.
After activation of the water pump and before the completion of the valves
switching the outdoor fans are forced to work at the speed defined on FS41
0 = function disabled
1 = During the FS26 the outdoor fan speed modulates according to the
condensing temperature/pressure
2 = During the FS26 time outdoor fans areforced to the night function speed
Low condensing pressure/temperature threshold for forced outdoor fans
function disabling.
If the condensing pressure/temperature drops below the FS42 level during
outdoor fans forced activation the same is disabled
Low evaporating pressure threshold for forced outdoor fans function disabling.
If the condensing pressure/temperature drops below the FS42 level during
outdoor fans forced activation the same is disabled
Enabling of anti-freeze prevention during domestic hot water production on
single circuit units. Active in heating function only
For preventing for possible antifreeze alarms due to defrost cycles, if the
evaporator water outlet temperature drops below the value defined on
parameter FS45 and the external temperature is lower than FS47 the unit is
switched to heating function until the water temperature goes higher than
FS45+FS46
Antifreeze prevention evaporator outlet water temperature set point
Antifreeze prevention evaporator outlet water temperature band
Antifreeze prevention external air temperature set point