1592015300 User manual iCHILL 200 L GB
r1.3 09/09/2005
Pg.
62/105
Par.
Ar07 = 3:
the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit 1 and 2 is controlled throughout the
NTC probes configured as evaporator water outlet circuit #1, circuit #2 and evaporator water common outlet , or if they are all
configured, by the first probe that goes below the setpoint.
ATTENTION
The two outputs are controlled in parallel if configured with only by one NTC probe control for common evaporator outlet.
FUNCTIONNING OF THE ANTI-FREEZE, INTEGRATION HEATING, BOILER HEATERS DURING THE DEFROST CYCLE
The Ar05 defines the support heaters:
Par.
Ar05 = 0:
The heaters are activated only by the thermoregulation algorithm.
Par.
Ar05 = 1:
The heaters are activated only by the thermoregulation algorithm and are always on during the defrost. 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.
23.3 T
HERMOREGULATION OF THE SUPPORT HEATERS FOR AIR
/
AIR UNIT
The NTC control in chiller mode depends on the Ar06 parameter value while from the Ar07 value in heat pump mode. With one relay
configured as heaters for circuit #1
With one output configured as heater of the circuit #1 the output is enabled both for chiller and heat pump request.
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 C
ONDENSER
A
NTI
-
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 T
HE 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.
Summary of Contents for ichill IC260L
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Page 77: ...1592015300 User manual iCHILL 200 L GB r1 3 09 09 2005 Pg 76 105 ...
Page 103: ...1592015300 User manual iCHILL 200 L GB r1 3 09 09 2005 Pg 102 105 NOTE ...
Page 104: ...1592015300 User manual iCHILL 200 L GB r1 3 09 09 2005 ...
