Grant Aerona - Page 25

Section 7: Touchscreen Display Operation and Settings Page 25
7.3.2.1 DHW SETTINGS
As per Figure 7-4 when on the DHW (if installed) you will navigate
to the DHW settings.
Table 7-5: DHW settings panel
Button Function description
Navigate back to previous screen.
Tap to amend DHW work mode
Tap to access DHW additional settings
+
Increase required circuit temperature
-
Decrease required circuit temperature
7.3.2.2 DHW WORK MODE
DHW work modes give selectable modes as per the consumer
preference but also have a optional boost function should the
consumer wish (in the event of an expected increase in system
demand).
Table 7-6: DHW work modes
Button Function description
Navigate back to previous screen.
1
Boost - Tap to create a temporary DHW demand.
Cylinder wil be raised to user set value and then
stop.
On - DHW demand on temperature fall by hyster-
esis (Refer to Section 7.3.2.3)
O󰀨 - Cylinder will not be heated
Schedule - On/O󰀨 based on User schedule
Tapping 'Boost' will create a temporary DHW demand. The icon
colour will change and remain blue until the cylinder reaches user
set temperature. If you wish to stop this, Tap the boost icon again.
The icon will change to grey to indicate it is o󰀨. If the cylinder is
within its optimum temperature range the boost function will not
activate
7.3.2.3 DHW ADDITIONAL SETTINGS
DHW additional settings provides a sub menu for the DHW
cylinder hysteresis parameters & Legionella protection (If
additional heater is congured - Refer to Section 7.4).
DHW Hysteresis is the amount of temperature drop from the user
set temperature in the cylinder before the system will demand
more heat in a scheduled ON time period.
If the hystersis setting is too low this can cause potential cycling of
the heat demand in an scheduled ON period. Too high can cause
the cylinder to not reach desired temperature and higher energy
useage.
7.3.3 CONTROLLER WORK MODE
The Grant Aerona Smart Controller work mode of the controller is
selected by tapping the currently displayed symbol on the main
screen in the place where the value of the outdoor temperature is
displayed. (Refer to Table 7.1).
Table 7-7: Controller work mode
Mode Description
AUTO Automatically switches on or o󰀨 the heating-
cooling mode (Cooling not available with Aerona
R32 heat pump range), depending on the external
temperature.
SUMMER Adjustable circuit performs the cooling function.
(Cooling not available with Aerona R32 heat pump
range)
WINTER Adjustable circuit performs the heating function.
Table 7-2: Heating circuit settings
Button Function description
Navigate back to previous screen.
Tap to amend Circuit work mode
Tap to view & amend circuit details
Tap to amend circuit thermostat choice
+
Increase required circuit temperature
-
Decrease required circuit temperature
7.3.1.2 CIRCUIT WORK MODE
The Circuit work mode sets the circuit to operate as per the
consumer preference.
Table 7-3: Heating circuit work modes
Button Function description
Auto - Day/Night temperatures based on user
schedule
O󰀨 - Circuit will not be heated
Day Mode - Circuit set to preset day temperature
Night Mode - Circuit set to preset night temperature
7.3.1.3 HEATING CIRCUIT DETAILS
The heating circuit details panel will display settings of the circuit
which you are viewing/editing. Refer to Figure 7-5.
• Circuit name – Name of the circuit, e.g., “Ground Floor”.
• Hysteresis – The value between when a thermostat switches
o󰀨 and back on. The parameter is only available when a
thermostat is assigned to the circuit.
• Preset day temperature – The target air temperature for
when the circuit is set to/scheduled to be in day mode
(occupied). The parameter is available for editing only when
a thermostat is assigned to the circuit.
• Preset night temperature (Setback temperature) – The
target air temperature for when the circuit is set to/scheduled
to be in night mode (overnight/unoccupied). The parameter
is available for editing only when a thermostat is assigned to
the circuit. The setback temperature should be congured to
the ideal comfort level minus the temperature value shown in
Table 7.4 below (based on heat emitters congured).
Table 7.4: Recommended setback air temperatures
Heat Emitter Night mode setback value(°C)
Fan-Coil 3
Radiators 3
Underoor Heating 1
• Heating curve – Adjust the heating curve and shift. Refer to
Section 6.3.
7.3.1.4 HEATING CIRCUIT THERMOSTAT CHOICE
Circuit thermostat choice will allow a circuit thermostat to be
reassigned. You will be prompted to conrm you wish to overwrite
any existing thermostats installed. The options are: None, Control
panel, Wired thermostat, Wireless thermostat.
• None: No Thermostat assigned
• Control Panel: Thermostat within Touchscreen display.
• Wired Thermostat: Wired thermostat (See Appendix A).
• Wireless Thermostat: Paired Wireless Thermostat (See
Appendix B).