Installation manual

18
7.7 Heating curves
When selecting heating curves, you will do so zone by
zone. Selecting the zone and pressing ‘Next’ will allow
you to select the kind of heat emitters that are in
place in the selected zone. The four heating curves
are for:
 Smart Rad
 Under floor
 Standard Rad
 Custom
Selecting Smart Rad, Underfloor or Standard Rad and
then selecting ‘Edit’ will bring you to a default heating
curve for the selected emitter. Selecting ‘Next’ will
select the default heating curve.
The pre-defined curves have recommended
temperature ranges for each heat emitter;
 Smart Rad Max 48 Min 35
 Under floor Max 30 Min 25
 Standard Rad Max 55 Min 45
 A fourth option, ‘Custom’, provides a flat line
curve.
The values that generate the heating curve graph can
be changed, by selecting the corresponding
temperature box and adjusting the temperature, as
shown in figure 35.
The green line on the right indicates the maximum
outdoor temperature at which the heat pump stops
running. The yellow line on the left indicates the
minimum outdoor temperature at which the bivalent
heating system starts working.
The red line indicates the temperature that the water
will be heated to, based on the outdoor temperatures.
The ‘Default’ option will reset the pre-defined values.
Set will save entered values.
To complete commissioning, you must select the
‘Setup complete’ submenu in the installer menu, as
shown in figure 36:
When commissioning has been successfully
completed, you will see the screen shown in figure 37.
Selecting ‘Automatic’ will activate all settings, where
as selecting ’Standby’ will enable the heat pump only
to carry out the defrost function. The default setting
for the heat pump is OFF. To turn on the heat pump,
you must return to the home screen to access the
user menu.
For further information on end user controller
instructions please see ‘A-Class Air Source Heat Pump
User Guide supplied in the Hydraulics Pack with this
manual.
NOTE: Pre-defined heating curves should only be
changed if the heat pump does not achieve the pre-
defined, recommended temperatures.
Figure 37: Commissioning Complete
Figure 35: Smart Rad Heating Curve screen
Figure 36: Full Commissioning menu
NOTE: If the heat pump is in “ON” mode and the
maximum outside temperature is reached, the heat
pump will revert to and maintain the set back
temperature. To prevent this, it is possible to set
your summer temperature (green line) at a higher
value (the default outside ambient setting is 18°C).