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FS 41
Condensation fan forced ON during the production of domestic water
0 = function is disabled
1 = during the FS26 time, the ventilation modulates according to the
condensing temperature/pressure
2 = during the FS26 time, the ventilation is forced to operate at the night
function speed
FS 42
Low condensing temperature/pressure threshold to by-pass the ON time of
the domestic water pump before the commutation of the valves.
If the condensing pressure/temperature drops below the FS42 level during
outdoor fans forced activation the same is disabled
FS 43
Low evaporating pressure threshold to bypass the ON time of the domestic
water pump before the commutation of the valves.
If the evaporating pressure/temperature drops below the FS42 level during
outdoor fans forced activation the same is disabled
FS 44
Evaporator anti-freeze prevention during domestic water production with a
single-circuit machine.
0= function is disabled
1=function is enabled
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
FS 45
Evaporator outlet water set point to prevent anti-freeze
FS 46
Band to prevent anti-freeze
FS 47
External air set point to prevent anti-freeze
FS 48
Do not turn the valves in production of domestic water only with dedicated
return.
0= function is disabled
1=function is enabled
If the function is active during production of domestic hot water only (no
cooling or heating demand) the solenoid valves remain in their standard
position and only the domestic hot water pump is activated.
FS 49
Switch off evaporator water pump in production of domestic water only with
dedicated return.
0= function is disabled
1=function is enabled
If the function is active during production of domestic hot water only (no
cooling or heating demand) the evaporator pump is switched OFF.
FS 50
Overlapping time between evaporator water pump and domestic water pump.
If the evaporator water pump is disabled during domestic hot water production
only (FS49=1) it is switched OFF FS50 seconds after the activation of the
domestic hot water pump
FS 51
Standby time before switching inversion valves from chiller to heat
pump .Delay time before actual begin of a domestic hot water production
FS 52
Not used
FS 53
Minimum operation time in chiller mode before switching to domestic water
production.
In case of demand of both domestic hot water and cooling the unit is forced to
work for FS53 in cooling mode only to ensure enough refrigerant is stored in
the condenser.
FS 54
Minimum chiller demand threshold (power steps) before starting in chiller +
domestic water mode.
Defines the number of cooling demand capacity steps necessary for
activation of cooling + domestic hot water production. In case the domestic
hot water production function is active any cooling demand for less than the
number of steps defined on FS54 is neglected.
FS 55
Minimum heat pump demand threshold (power steps) before stopping the
domestic water production (with HP priority).
In case the domestic hot water production function is active any heating
demand for less than the number of steps defined on FS55 is neglected.
FS 56
Power modulation if the user side and domestic water side are demanded
simultaneously.
0 = the temperature control satisfies the domestic water demand
1 = enabling of max number of steps between domestic water and user side
2 = 100% enabling of power available (only HP)
Parameter
Description
1592025050 iProChill v2.5 10D00 AG v1.3 GB 18.02.2016.docx
Free-cooling
0
2
-50.0
110
°C
-58
230
°F
0.0
50.0
Bar
0
725
Psi
-50.0
110
°C
-58
230
°F
Bar
0.0
50.0
Psi
0
725
0
1
-50.0
110
°C
-58
230
°F
0.1
25.0
°C
1
45
°F
-50.0
110
°C
-58
230
°F
0
1
0
1
0
250
sec
0
250
sec
0
250
sec
1
16
1
16
0
2
min
max
um
Resolution
iProCHILL
dec
int
dec
int
dec
int
dec
int
dec
int
dec
int
dec
int
10 sec
139/205
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