Grant Aerona HPIDR32SMART6 Installation & Operating Instructions Manual page 30

7.8.1.1 ENABLE THERMOSTATIC PUMP BLOCKADE
To enable Thermostatic pump blockade for a circuit:
1. Tap the Settings menu and then 'SERVICE SETTINGS'.
Enter the password: 0000 on the keypad provided and tap
'Enter'. Refer to Table 7-1 and Section 8 for full Service
settings parameters listing.
Figure 7-11: Service Settings menu
2. Tap 'Installation controller'
3. Swiping the Touchscreen display scroll down to the desired
circuit and select by tapping. (Refer to Figure 7-12).
Installation controller
DHW settings
Circulation settings
Circuit 1
Circuit 2
Circuit 3
Heaters
Figure 7-12: Installation controller menu
4. Swiping the touchscreen display scroll down to 'Thermostatic
pump blockade'. Tap the icon to switch on. (Refer to Figure
7-13)
Circuit 1
Fixed preset water temperature
Decreasing fixed water temperature
Thermostat
Room temperature correction
Thermostat pump blockade
Figure 7-13: Edit Circuit 1 settings
Tap the < button to navigate backwards to the home screen.
7.8.2 PUMP ONLY/MIXING
Circuits 2 and 3 can function as either a mixing or non-mixing
space heating circuit. Using the System configuration creator
(Refer to Section 6), you are prompted to confirm if the circuit is
controlled with or without a mixer, which in turn will create the
circuit and apply the required settings.
If a mixer is not specified, 'PUMP ONLY' will be automatically
set to ON within the circuit control settings. This will also display
the 'CIRCUIT STOP FROM PRESET TEMP' control within the
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User settings
Service settings
40°C
4.0°C
ecoTOUCH: 100
circuit settings. Refer to Figure 7-15.
If a mixer is specified, 'PUMP ONLY' will be automatically set
to OFF within the Circuit control settings. The menu will not
display 'CIRCUIT STOP FROM PRESET TEMP', but will have
the option for the mixing valve including the 'VALVE OPENING
TIME' which will be used by the Smart Controller to open and
close the mixing valve for the desired circuit.
No
'Pump Only' must be
ON.
No
No
'Circuit stop from preset temp'
has to be OFF.
Circuit will stay active and
water flow temperature
4.0
modulated down to
maintain air temperature based
on Weather compensated or
fixed water target temperature
Figure 7-14: Circuit 2&3 Hydraulic controls
7.8.2.1 CIRCUIT STOP FROM PRESET TEMP
'CIRCUIT STOP FROM PRESET TEMP' is a hydraulic control
feature within a mixing heating circuit setting that enables the
Grant Aerona Smart controller to either switch a circuit pump/
valve OFF (Circuit stop on Preset temp ON) or keep the circuit
active (Circuit stop on Preset temp OFF) based on the status of
an installed water temperature sensor on the flow in the circuit.
This function can only be used on Circuits 2 and 3 when used as
a non-mixing circuit.
Refer to Figure 7-14 for hydraulic control application for Circuit
Circuits 2 and 3 (Mixing) utilising 'PUMP ONLY, 'CIRCUIT
STOP FROM PRESET TEMP' and 'THERMOSTATIC PUMP
BLOCKADE'.
Section 7: Touchscreen Display Operation and Settings
Circuit 2 and 3
Is a mixing valve installed?
'Pump Only' must be
Is a Thermostat installed?
No
Is the circuit to be controlled
by a thermostat?
'Thermostatic Pump Blockade'
must be ON.
Circuit is activated/deactivated
based on target air
temperature & hysteresis
settings.
Is the circuit to be controlled by
a Water temperature sensor?
'Circuit stop from preset temp'
must be ON.
Circuit is activated/deactivated
based on
Weather compensated or
fixed water target temperature
& hysteresis settings.
Yes
OFF.
Yes
Yes
Yes