IC100C Series
PRELIMINARY
1592015000 Manual IC100C Series 28/05/03 Page 24 di 38
Temperature value under which the controller
switches on the anti-freeze heater (with probe NTC
Pb1-Pb2).
Ar10
Setpoint anti-freeze heater for water/water unit
in Heat Pump mode.
Temperature value under which the controller
switches on the anti-freeze heater (with probe NTC
Pb3-Pb4).
Ar11
«Anti-freeze heater / integration heater»
differential in Chiller mode.
Ar12
«Anti-freeze heater / integration heater»
differential in Heat Pump mode.
Ar13
«Anti-freeze heater / integration heater»
configuration.
0 = ON with instrument control.
1 = ON with instrument control and active defrost
cycle (always on during defrost)
Ar14
«anti-freeze heater / integration heater» set-up
in Chiller.
0 = OFF in Chiller
1 = ON in chiller (on when necessary).
Ar15
anti-freeze heater /integration heater setup in
Heat Pump.
0 = OFF in Heat Pump;
1 = ON in Heat Pump (on when necessary)
Ar16
Probe selection for «anti-freeze heater /
integration heater» in Chiller mode:
0 = Pb1 probe control;
1 = Pb2 probe control.
Ar17
Probe selection for «anti-freeze heater /
integration heater» in Heat Pump mode:
0 = Pb1 probe control;
1 = Pb2 probe control.
Ar18
Anti-freeze heater in Stand-by status. It
determines the status of the “anti-freeze heater
/integration heater” when the controller functioning is
off or stand-by:
0 = Always OFF;
1 = Running on controller demand.
Ar19
Anti-freeze heater safety for faulty probe.
0 = Always off for faulty probe.
1 = Always on for faulty probe.
Boiler Function Parameters
Ar20
The Boiler function allows to control the
electrical heater in Heat Pump mode:
0 = Integration control; 1 = Heating control.
Ar21
External air Setpoint for electrical heater control.
Ar22
Boiler temperature differential.
36.8
Defrost Parameters
dF01
Defrost cycle control.
0 = No; 1 = Yes
dF02
Type of defrost cycle.
0 = Temperature/pressure control. The defrost delay
counting time dF10 starts just after the
temperature/pressure goes below the setpoint dF03.
The defrost stops for temperature/pressure control.
1 = Maximum time length defrost. The defrost delay
counting time dF10 begins just after the
temperature/pressure goes below the setpoint dF03.
The defrost stops after the time set in dF07.
2 = External contact defrost. The defrost delay
counting time dF10 begins just after the
temperature/pressure goes below the setpoint dF03.
The defrost starts if the external contact is not active
but stops when the contact becomes active.
dF03
Temperature/pressure value under which the
defrost delay dF10 starts counting.
dF04
End defrost temperature/pressure setpoint.
When the temperature rising over this value the
defrost stops.
dF05
Time delay before starting a forced defrost. The
function is enabled if dF05<>0. It starts a defrost cycle
(even if dF10 time is not expired), if the
temperature/pressure is lower than the set dF19 for
the time dF05 duration. If during dF05 the
temperature/pressure rises over the set dF19 + dF20
(differential) the defrost cycle is postponed and the
delay time dF05 is reloaded.
dF06
Minimum defrost duration. It determines the
minimum time duration of a defrost cycle even if the
other end defrost conditions have been already
satisfied.
dF07
Maximum defrost duration. It determines the
end of the defrost if dF02 = 1. In other cases it
determines the maximum time.
dF08
Pause time before starting the defrost ( the
compressor led is blinking). After the dF10 delay,
before turning on the defrost cycle, the controller
stops the compressor for the time set in dF08. To
allows the pressure balancing, exactly in the middle of
the dF08 counting (dF08/2), the 4-way reversing valve
is activated. The delay times of the compressor are
not calculated. If dF08=0 the compressor does not
stops and the 4-way valve is immediately activated.
dF09
Pause time after defrost (the compressor led is
blinking). To allows the pressure balancing and the
water draining the Heat Pump functioning restarts
only after the time set in dF09 parameter. In the
middle of dF09 counting the 4-ways valve is
deactivated. The compressor delay times are not
calculated.
If dF09 = 0 the compressor does not stop and the
valve is immediately activated.
dF10
Interval time between defrosts. The counting
starts when the condenser temperature/pressure
detected (Pb3/Pb4) is lower than DF03.In case of
