Ideal Heating EVOMAX 2, Руководство пользователя

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NOTE: The next section can only be selected
in software revisions from 443.207.000 and
above.
Plant – SL2 230V External heat source
availability and control configuration
The Master boiler can control an External
heat source to provide heat into the cascade.
In order to do this, it requires an input signal
to inform it as to when the External heat
source is available. SL2 is used as the
input to tell the Master that the External
heat source is available to supply heat into
the cascade.
Once this is determined, the control signal for
the External heat source must be defined. It
is possible to select the 0-10V output or one
of the MFR Multi-Function Relays, 1 to 4.
.
Configure SL2
None
Ext. heat source release
Configure SL2
None
Ext. heat source release
Once Ext. heat source release is selected
the required control signal can be selected
and configured.
Ext. heat source control
None
PWM/0-10V ()
MFR1 ()
Ext. heat source control
None
PWM/0-10V ()
MFR1 ()
MFR2 ()
Ext. heat source control
PWM/0-10V ()
MFR1 ()
MFR2 ()
MFR3 ()
Ext. heat source control
MFR1 ()
MFR2 ()
MFR3 ()
MFR4 ()
Ext. heat source control
MFR2 ()
MFR3 ()
MFR4 ()
Ext. heat source control
MFR3 ()
MFR4 ()
0-10V Ext. heat source control settings.
If the 0-10V output is selected to control the
demand to the External heat source, then the
following parameters must be set.
The voltage threshold to turn on the External
heat source.
Configure voltage demand
0.0V
Done
Configure voltage demand
1.5V
Done
Configure voltage off
0.0V
Done
Configure voltage off
1.0V
Done
External heat source capacity
In order to be able to determine the capacity
of the cascade the Master boiler needs to
know what the maximum capacity rating of
the External heat source is.
Maximum rating
35.0kW
Done
Maximum rating
80.0kW
Done
The demand switch on capacity for the external
heat source can then be set.
Switch on capacity
60%
Done
Switch on capacity
40%
Done
The next plant control signal that may be
configured is the OpenTherm Bus signal which
is a bidirectional signal to the cascade.
OpenTherm
This bus signal can both control and monitor the
status of the cascade via the Master boiler. It
has a number of modes of operation:
1.
On/Off demand
2. Temperature setpoint demand
3. Capacity setpoint demand
If no OpenTherm control of the cascade is
required then ‘None’ may be selected.
Configure OpenTherm
No
On demand
Temperature demand
The options that may be selected are as
below, if ‘On demand’ is selected this is
effectively a PELV ‘volts free’ enable signal.
Configure OpenTherm
None
On demand
Temperature demand
Capacity demand
If ‘On demand’ is configured then this will
then prompt for a Cascade flow temperature
set point, which will be the target temperature
for the cascade under direct OpenTherm
control.
OpenTherm Temp. Setpoint
60ºC
Done
OpenTherm Temperature demand
Configure OpenTherm
On demand
Temperature demand
Capacity demand
When OpenTherm Temperature demand is
selected, the maximum temperature that an
OpenTherm master can demand from the
Plant can be adjusted.
Set max flow temp
80ºC
Done
Set max flow temp
85ºC
Done
Once this level is set, ‘Done’ may be selected.
The next plant function that may be selected
is the outside sensor input if one is to be used
for the control of the flow temperature from the
cascade. If not then select ‘Done’.
Outside sensor available?
None
Yes