Heating control - user manual
www.solarcontrols.cz
Instructions for the installation and setup
of the device
Page 24 of 58
“Input – control temperature” – a temperature sensor according to which the power of the outdoor
unit will be controlled. Typically it is located in the centre of the storage tank, near the offtake of the
heating water into the system. Always obligatory.
“Output – heat pump request” – an output which is used to switch on or possibly to control the power
of the heat pump. Ext1 or Ext2 outputs must be used in the case of the type according to a).
“Output – bivalent 1
st
level” – this output switches on the 1
st
level of the bivalent heat source if it is
connected. Not obligatory.
“Output – bivalent 2
nd
level” – this output switches on the 2
nd
level of the bivalent heat source if it is
connected. Not obligatory.
“Proportional control” – tick only if you have an inverter heat pump connected which is controlled by
the Ext1 or Ext2 output, therefore the type according to a). A PID controller will be used for
controlling. A two-state controller with hysteresis will be used for other heat pumps, i.e. types
according to b).
“Allow external control (WATTrouter)” – it allows you to receive information about the requested
power from the external device, in the current version from WATTrouter M. In order to use the
external control according to the excess energy from the photovoltaic power station by means of the
WATTrouter it is necessary to have a proportionally controlled inverter heat pump connected, i.e. the
type according to a).
“Heat pump in low tariff only” – upon request of the internal control, the heat pump output activates
only when the low tariff is active. This option does not affect external control or time schedules.
“Bivalents in low tariff only” – upon request of the internal control, the outputs of the bivalent sources
activate only when the low tariff is active. This option does not affect external control or time
schedules.
“Limit internal control when no heating” – it limits the internal control if the heating indicator is not
active in any heating circuit in the “Heating circuits” tab. It can be used in summer when the storage
tank is heated only from an external request in the case of connection to the WATTrouter.
“Enable a temporary increase of the control temperature” – it activates the function of the temporary
increase of the control temperature by 2 °C, if one of the heating circuits indicates insufficient heating
and the current control temperature already reaches the required temperature (in the band ± 2°C).
The temporary increase is activated 30 minutes after one of the heating circuits indicates insufficient
heating and it is deactivated immediately after this condition ceases to exist in all heating circuits. This
function makes it possible to respond to an increased heating request, for example, in long lasting
frosts, when the pre-set equitherm or constant temperature of the heating water may not be
sufficient for heating the house. In the case of a constant request for increased heating power it is
necessary to change the pre-set equitherm curve or constant temperature, however, you should
proceed carefully because every increase will be reflected in higher electricity consumption.
“Internal control request” – the internal control requires operation of the heat pump.
“Delayed internal control request” – ditto, delayed by the “Internal control request off-delay” item.
“External control request” – the external control (e.g. WATTrouter) requires operation of the heat
pump.
“Bivalent 1
st
level request” – the internal control requires the operation of the 1
st
level of the bivalent
heat source.
