Parameter Adjustment - Ariston NIMBUS EXTERNAL UNIT 04 kW Technical Instructions For Installation And Maintenance

WARNING
To guarantee safety and correct operation of the system inter-
face, it must be commissioned by a qualifi ed technician in pos-
session of the skills as required by law.
Ignition procedure
- Insert the system interface into the connection shoe by pushing it
gently downwards; after a brief initialisation, the system interface
will be connected;
- The display screen shows "Select language". Turn the knob and
select the desired language. Press the OK button to confi rm.
- The display shows the date and time.
Use the knob to select the date, press the OK button, turn the knob
to select the exact day, press the OK button to confi rm and move
on to the month, followed by the year, pressing the OK button to
confi rm after each step.
Turn the knob to select the time, press the OK button, turn the
knob to select the exact hour, press the OK button to confi rm and
move on to the minute value. Press the OK button to confi rm.
Turn the knob and select summer time, press the OK button, select
auto or manual, press the OK button.
The display screen shows:
- Country selection
Now follow the step-by-step instructions which appear on the
display from time to time.
Technical Area access
- Simultaneously press the back "
pears on the display.
- Turn the knob to enter the technical code (234) then press OK; TECHNICAL
AREA will appear on the display:
- Language, date and time
- BUS network setting
- Complete menu
- Guided confi guration
- Maintenance
- Errors
Second zone setting
Turn the knob and select:
- BridgeNet BUS NETWORK SETTINGS
The display will show the list of devices connected within the system:
- System interface (local)
- Energy Manager
- Multizone control
To set the correct zone to which the system interface is linked, turn the knob
and select:
- System interface (local)
Press the OK button.
Turn the knob and set the correct zone. Press the OK button to confi rm the
setting.
Turn the knob and select:
- COMPLETE MENU (for a full list of the parameters, please see the
table below)
Press the OK button. Turn the knob and select:
9 HYBRID PARAMETERS
Press the OK button. Turn the knob and select:
9.0 User parameters
Press the OK button. Turn the knob and select:
9.0.0 Hybrid mode
Press the OK button. Turn the knob and select:
- 0. Auto
(automatic operating mode)
- 1. Boiler only
(excludes heat pump operation)
- 2. Heat pump only
(excludes boiler operation)
Press the OK button.
62 /
" and "OK" buttons until "Enter code" ap-
Turn the knob and select:
9.0.1 Energy Manager logic
Press the OK button. Turn the knob and select:
- Max economy (the system operates for maximum saving)
- Max ecology (the system operates for maximum environmental respect)
Press the OK button. Turn the knob and select:
9.0.2 ECO/COMFORT
Press the OK button.
Defi nes the operating time of the boiler starting from the highest energy sav-
ing (ECO PLUS) to the most comfortable (COMFORT PLUS)
Press the OK button. Turn the knob and select:
9.0 4 Silent operation mode activation
Press the OK button. Turn the knob and select:
- ON (reduces heat pump noise)
- OFF (switches off heat pump)
Press the OK button.
9.0.5 Quiet Mode start time [hh:mm]
Press the OK button. Turn the knob to set the modality start time. The com-
pressor frequency is limited to the 75% of the maximum power. Press the
OK button.
9.0.6 Quiet Mode end time [hh:mm]
Press the OK button. Turn the knob to se time of the modality
Press the OK button
9.0.7 PV integration
Press the OK button. Turn the knob and select:
- Not active
- Active (applying a 230Vac signal to the PV input, the hybrid system favours
the HP use during an heating or sanitary request, to take advantage from
the PV free energy. In absence of heating or sanitary requests the tank set-
point is encreased according to the par. 9.0.8 setting.
Press the OK button.
9.08 Delta T PV sanitary setpoint
Press the OK button. Turn the knob to set the value that encreases the sani-
tary setpoint when the PV contact is supplied.
Press the OK button. Turn the knob and select:
9.1 Energy manager parameter 1
Press the OK button. Turn the knob and select:
9.1.0 Hydraulic scheme
Press the OK button. Turn the knob and select the hydraulic scheme related
to the sanitary system typology: with combi boiler or system boiler plus tank.
If the hydraulic scheme is not selected the system shows the 940 error
"Defi ne hydraulic circuit diagram".
9.1.1 FlowT HP Offset
Defi nes compensation in °C of the delivery temperature setpoint of the heat
pump, due to thermal dispersion along hydraulic connections between heat
pump and hydraulic module.
Press the OK button. Turn the knob and select:
9.1.2 Text for Boiler disabling
The system excludes the boiler when the outdoor temperature is higher than
the value set.
Press the OK button. Turn the knob and select:
9.1.3 Text for HP disabling
The system excludes the heat pump when the outdoor temperature is higher
than the value set.
Press the OK button. Turn the knob and select:
9.1.6 AUX Output 1 setting
Confi gures the function of the AFR output with the following values:
- 0. None
- 1. Fault alarm (the contact closes in case of error)
- 2. Humidistat alarm (not enabled)
- 3. External heat request (not to select in case of use of a boiler connected
via BUS)
Press the OK button. Turn the knob and select:
9.1.7 AUX 2 output confi guration
Confi gures the function of the AFR output with the following values:
- 0. None
- 1. Alarm (the contact closes in case of error)
- 2. Humidistat alarm (not enabled)
Press the OK button. Turn the knob and select:
deactivation.