Ariston NIMBUS COMPACT S NET Manual page 80

17.1.2 HV Input 3
- 0. Not active
- 1. PV integration active: Input not active (0V), no tank
integration from PV system. Input active (230V): if the
system is in stand-by, the DHW setpoint temperature is
incremented by the amount defined by the parameter
17.0.5 - PV Delta T DHW setpoint temp.
17.1.3 AUX Input 1
- 0. None
- 1. Humidistat: when the contact is closed, the heat pump
switches off
17.1.4 AUX Output 1 (AFR)
- None
- Fault alarm: the contact is closed in case of fault
- Humidistat alarm: the output is closed when the AUX 1
is set as humidistat and it is closed.
- External heat request: the contact is closed to generate
an heat request to a external heat source instead of the
heating resistors.
- Cooling Request: the contact is closed to generate a
cooling request to an external cooling source
- DHW request: External heat request: the contact is clo-
sed to generate an heat request to an external source
instead of the electrical resistances.
17.1.6 AUX P2 circulator setting
- Auxiliary circulator: circulator follows in parallel the
switch on/off of the primary circulator P1
- Cooling circulator: driven ON when Cooling mode se-
lected and heat request active
- buffer circulator: circulator is activated when Global
Heat Request and Buffer Activation is ON
Push OK button. Turn the knob and select:
17.2 ENERGY MANAGER PARAMETER 1
17.2.0 Hydraulic scheme
Hydraulic scheme. Define the hydraulic configuration cor-
responding to the installation. Here we got the options:
- None
- Plus (SPLIT S-R; S-RX); only heating/cooling
- Compact (SPLIT S-CR; S-CRX); DHW tank integrated
- Flex (SPLIT S-R; S-RX with separated tank) external
DHW tank
- HP Water Heater; only DHW (not used)
- Lightbox: the machine provides CH + service DHW
and Cooling using only the HP without any internal unit
idraulics (not used)
17.2.1 Thermoregulation
Activate/deactivate the thermoregulation function
17.2.2 Eco / Comfort
Define the delay time of the heating resistors switching on
starting from the longer one (ECO PLUS) to the shorter one
(COMFORT PLUS).
17.2.3 FlowT HP Offset
Define the flow setpoint temperature compensation due
to heat losses along the hydraulic connection between
the outdoor unit and the internal hydraulic module.
17.2.4 Boost Time
Enabled only with thermoregulation active and thermore-
gulation type set as "Basic Thermoregulation" (see para-
meters 421/521/621). It defines the delay time to increment
the flow setpoint temperature by step of 4°C (max 12°C). If
the parameter value is 0 the function is not active.
80 / GB
17.2.5 External temperature correction
Offset compensation of the external tempearture probe
reading
17.2.6 Active Resistance Stages
Define the number of active stages of the heating resistors
17.2.8 External Unit Version (NOT MODIFY)
- SPLIT
- MONOBLOCK (default)
17.2.9 Antiblocking Function Enable
activate the antiblocking function ofthe main circulator.
Main circulator is switched on and 3way valve is posi-
tioned in DHW mode for 30s after 23h without any activity.
Push OK button. Turn the knob and select:
17.3 CENTRAL HEATING
17.3.0 CH pump pre-run time
Define the pre-run time of the main circulator to detect wa-
ter flow in the primary circuit.
17.3.1 Time for pre-run new attempt
Define the waiting time between a pre-run cycle and the
following one.
17.3.2 CH Pump Overrun
Post circulation time.
17.3.3 Pump Speed Control
Change the speed control type:
- 0: Fixed Low Speed
- 1: Fixed High Speed
- 2: Modulating speed control
17.3.4 EM Delta T Pump Setpoint
Set the target of the pump modulation control algotithm
from 5°C to 20°C
17.3.7 Max PWM Pump
Circulator max speed
17.3.8 Min PWM Pump
Circulator min speed
17.3.9 Floor drying Flow Set Point Temperature
Define the flow setpoint temperature for the floor heating.
(See parametre 17.8.1).
Push OK button. Turn the knob and select:
17.4 COOLING
17.4.0 Cooling mode activation
Press the OK button. Turn the knob and select:
- Not active
- Active (enables the function)
17.4.1 Cooling anticycling time
Define the delay time for the end of cooling request and
heat pump switching off.
17.4.2 Cooling Flow T HP Offset
See parameter 17.2.3
Push OK button. Turn the knob and select:
17.5 DOMESTIC HOT WATER
17.5.0 DHW Comfort Setpoint Temperature
It defines the value of hot water comfort
17.5.1 DHW Reduced Set Point Temperature
It defines the reduced hot water value
17.5.2 Comfort function
Configures the domestic hot water production mode as
follows:
- Disabled
- Time Based (starts the comfort function for periods
which can be set through the domestic water produc-
tion schedule programming feature)