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5.5
Heating Circuit Configuration
If heating circuits were located and allocated
during initial setup then they will now appear
here to be configured. There is a maximum
number of heating circuits for each boiler,
in this case two circuits identified by boiler
number and Heating Circuit number.
Select HC to configure
HC1 Boiler 1.1
HC2 Boiler 2.1
HC3 Boiler 2.2
At the end of the list of allocated Heating
Circuits ‘Done’ is displayed.
Select HC to configure
HC1 Boiler 1.1
HC1 Boiler 2.1
HC2 Boiler 2.2
Done
Firstly select the Heating Circuit you wish
to configure:
Select HC to configure
HC1 Boiler 1.1
HC2 Boiler 2.1
HC3 Boiler 2.2
The next step is to configure the Heating
Cirucuit pump control signal if it has its own
unique circulation pump. If you have already
configured a System pump this may not be
required so ‘None’ may be selected. One of
the programmable outputs can be selected
for this function. The following screen will
be displayed.
Select location of HC pump
None
PWM/0-10V ()
MFR1 ()
Select location of HC pump
None
PWM/0-10V ()
MFR1 ()
MFR2 ()
Select location of HC pump
PWM/0-10V ()
MFR1 ()
MFR2 ()
MFR3 ()
Select location of HC pump
MFR1 ()
MFR2 ()
MFR3 ()
MFR4 ()
Select location of HC pump
MFR2 ()
MFR3 ()
MFR4 ()
Select location of HC pump
MFR3 ()
MFR4 ()
Once completed the next step is to set the
Maximum and Minimum flow temperature
for the Heating Circuit.
Set max flow temp
85ºC
Done
Select the temperature and adjust to the
desired setting, confirm and then select
‘Done’.
Set max flow temp
75ºC
Done
Set min flow temp
15ºC
Done
Set min flow temp
30ºC
Done
Once completed the next step is to confirm
if a Room Temperature sensor is connected
and being used control the room temperature
for this Heating Circuit.
Room Sensor available?
No
Yes
The next step is to confirm is an Outside
Temperature sensor is connected and being
used as an input to the Heating Circuit to
calculate the required flow temperature.
Outside Sensor available?
No
Yes
Depending upon the two item selection
above the next screen will show what
options are available for control of the flow
temperature for that specific Heating Circuit.
Control variant
Flow
Weather
Room
Control variant
Flow
Weather
Room
Weather and Room
The next step is to select the function for the
SL1 230V switched live input in relation to
this Heating Circuit, if it is required.
It can be used as a Heating Circuit enable
signal, an Override signal, a Holiday signal
or a Frost protection input from an external
‘Volts Free’ contact for that specific Heating
Circuit. If this input is already configured, you
will be queried, or if not required then ‘None’
can be selected.
Configure SL1
None
HC enable
Override
Configure SL1
None
HC enable
Override
Holiday
Configure SL1
HC enable
Override
Holiday
Frost
Configure SL1
Override
Holiday
Frost
Configure SL1
Holiday
Frost
The next step is to configure the OpenTherm
input if it is to be used for this specific Heating
Circuit. The OpenTherm interface can be
operated in a number of modes, On/Off as a
‘volts free’ PELV signal, Temperature control
from an OpenTherm master, or if already
configured you will be prompted, or if not
used select ‘None’.
Configure OpenTherm
None
On/Off
Temperature control
Configure OpenTherm
None
On/Off
Temperature control
Configure OpenTherm
On/Off
Temperature control
If On/Off or Temperature control is selected
then the system needs to know of the
OpenTherm Master has a built in timeclock.
OT Master with time clock?
No
Yes
