Download IC200D Series User manual

1592015700 User manual iCHILL 200 D GB
r1.4
23/11/2009
With two outputs configured as heater of the circuit 1 and two the outputs are enabled both for chiller and heat pump request.
FUNCTIONNING OF THE SUPPORT HEATERS DURING THE DEFROST CYCLE
The Ar05 parameter defines the support heaters operating mode during the defrost.
Par. Ar05 = 0: the heaters are controlled only through the thermoregulation algorithm.
Par. Ar05 = 1: heaters are controlled only through the thermoregulation algorithm and are always on during the defrost cycle. They turn
on when the 4-way valve change from heat-pump to chiller and turn off only after the dripping time and the compressors restart
ATTENTION
The support heaters are always off when:
•
The supply fan is not configured
•
The supply fan is off
•
The unit is in stand-by or remote off
•
The probe is faulty
23.4 CONDENSER ANTI-FREEZE HEATERS REGULATION
The regulation dependes on the configuration of the heater circuit 1 relay and heater circuit 2 relay and the corresponding NTC probes
used to this control.
The parameter Ar08 is used to select the heaters probe control both for chiller and heat pump.
Par. Ar08 = 0: The thermoregulation, the alarm and the heater regulation are disabled.
Par. Ar08 = 1: The thermoregulation, the alarm and the regulation of both the heaters together of the circuit 1 and 2 is excecuted only
through the condesner water inlet NTC probe.
Par. Ar08 = 2: The thermoregulation, the alarm and the heater 1 regulation is executed through the condenser water outlet NTC probe
of the circuit 1.
The thermoregulation, the alarm and the heater 1 regulation is executed through the condenser water outlet NTC probe of the circuit 2.
ATTENTION
It is not possible to control the heaters of the circuit 1 with the NTC probe of the condenser water outlet of the circuit 2 and viceversa.
Par. Ar08 = 3
The thermoregulation, the alarm and the regulation of both the heaters together of the circuit 1 and 2 is excecuted through the probes
configured as condenser water outlet of the circuit 1 and 2 and the NTC of the common outlet.
ATTENTION
When the outputs are configured as heaters circuit 1 and 2 they are both controlled by the NTC probe of the common condenser outlet.
23.5 THE THERMOREGULATION OF THE ANTI-FREEZE HEATERS OF THE CONDENSER/RECOVERY
The thermoregulation depends on the configuration of the circuit 1 and 2 heaters and the NTC probe to control the cycle.
The Par. Ar08 selects the probe to control the anti-freeze alarm and the heaters thermoregulation.
Par. Ar08 = 0: the thermoregulation, the anti-freeze alarm and the heaters control of the circuit 1 is controlled by the NTC of the
condenser water common inlet or the circuit 1, while the relay output for circuit 2 is controlled through the NTC configured as
condenser water common inlet or circuit 2.
Par. Ar08 = 1: the thermoregulation, the anti-freeze alarm and the heaters control of the circuit 1 is controlled by the NTC of the
condenser water common outlet or the circuit 1, while the relay output for circuit 2 is controlled through the NTC configured as
condenser water common outlet or circuit 2.
23.6 GRAPH OF THE ANTI-FREEZE- INTEGRATION HEATING - BOILER HEATER RELAYS
23.7 BOILER THERMOREGULATION(ANTIFREEZE), BOILER FUNCTION
To determine the electrical heater control in chiller or heat pump mode because the electrical heaters can be used as anti-freeze or can
also be used to integrate or heating the heat pump mode or in particular situation in chiller mode.
The function is enabled when:
1.
One NTC probe configured as external air for dynamic setpoint / boiler function.
2.
Parameter Ar11 <>0.
Integration control Ar11=1
When the air temperature value detected by the external air probe decreases under the Ar12 setpoint, the Ar14 delay starts counting. If
during the Ar14 counting the external air increases above the Ar12 + Ar13 (differential) the function is aborted and the Ar14 time is
reloaded.
When the time Ar14 is expired and the external air temperature is still under the Ar12 setpoint and the water temperature detected by
the evaporator probe is lower than Ar15 in chiller mode or Ar17 in heat pump mode, the heaters are turned on. When the temperature
rises over Ar15 + Ar16(differential) in chiller mode or Ar17+Ar18 in heat pump the heaters are turned off.