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7
Water to Water Heat Pump (WTW)
Heating
The heating menus deal with space heating using normally ei-
ther a radiator, fan-coil, or underfloor heating system depend-
ing on the installation.
There are 3 heating modes
Heating room temp. (Auto adaptation) (
●
Heating flow temp. (
●
Heating compensation curve (
●
<Room temp. (Auto adaptation) mode>
In room temp. (Auto adaptation) mode the controller uses
temperature sensors around the heating system to monitor
space and flow temperatures. This data is regularly updated
and compared to previous data by the controller to predict
changes in room temperature and adjust the temperature
of water flowing to the space heating circuit accordingly.
By monitoring not only the outdoor ambient, but the room
and heating circuit water temperatures, the heating is more
consistent and sudden spikes in required heat output are re-
duced. This results in a lower overall flow temperature being
required.
<Flow temp. mode>
The temperature of the water flowing to the heating circuit is
set by the installer to best suit the space heating system de-
sign, and user's desired requirements.
Explanation of compensation curve
During late spring and summer usually the demand for space
heating is reduced. To prevent the heat pump from producing
excessive flow temperatures for the primary circuit the com-
pensation curve mode can be used to maximise efficiency
and reduce running costs.
The compensation curve is used to restrict the flow tempera-
ture of the primary space heating circuit dependent on the
outdoor temperature. The FTC uses information from both an
outdoor temperature sensor and a temperature sensor on the
primary circuit supply to ensure the heat pump is not produc-
ing excessive flow temperatures if the weather conditions do
not require it.
Your installer will set the parameters of the graph depending on
local conditions and type of space heating used in your home.
It should not be necessary for you to alter these settings. If
however you find that over a reasonable operating period the
space heating is not heating or is overheating your home,
please contact your installer so they can check your system for
any problems and update these settings if necessary.
B-246
)
)
)
: Flow temp.
: Outdoor ambient temp.
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