18
3.7.11
Menu – Heating circuit – Settings
- Preheat
This controls the preheat compensation for a
given heating circuit, if enabled this will bring
on demand from that heating circuit prior to
an increase in temperature set point. E.g.
from night to day mode. The time allowed for
preheat is limited by the Maximum preheat
time, this ensures that the heating circuit
demand can only start within that time value
and not start any earlier.
Preheat can be enabled for the selected
HC and the maximum allowable preheat
time set.
Preheat
Preheat switch
Maximum preheat time
Preheat
On/Off
Preheat
On/Off
Preheat
Preheat switch
Maximum preheat time
Preheat
120minutes
3.7.12
Menu – Heating circuit – Settings
– Heating limit
This ensures that the heating is not switched
on unnecessarily if the average outside
temperature, e.g. during the summer
months, is higher than the room temperature
setpoint in day mode.
Heating limit can be enabled for the
selected Heating Cirucit and the heating
limit temperature setpoint defined.
Heating limit switch
On/Off
Heating limit switch
On/Off
Heating limit temperature
19ºC
3.7.13
Menu – Heating circuit – Settings
– Room temp. switch diff.
This sets the switching differential for the
Heating Ciruit room sensor. The value
ensures that the Heating Circuit does not
continuously cycle demand into the system.
Room temp. switch diff.
1ºC
3.7.14
Menu – Heating circuit – Settings
– Pump
The pump for each individual heating circuit
has a number of settings. Some relate to
speed if configured for control by a 0-10V
output.
Pump
Overrun time
Overrun speed
Maximum speed
Overrun time
10secs
Overrun speed
70%
Maximum speed
100%
3.7.15 Menu - Heating Circuit -
Settings - Heating Curve
The heating curve parameters can be
adjusted to suit the applicaiton if required.
Heating curve
Slope
Parallel shift
Room influence
Heating curve
Slope
Parallel shift
Room influence
Heating curve
Parallel shift
Room influence
The slope of the curve has a default setting
of 2.60 can be adjusted between 0.25 and
4.00, see the associated data sheet for
example curves. This slope contributes to the
adjustments of the flow set point in relation
to the outside temperature
The curve parallel shift has a default setting
of 0.0ºC, and this can be adjusted between
-50.0ºC and 50.0ºC. This offset adjusts the
curve vertically.
The room influence factor has a default
setting of 25% and can be adjusted between
0 and 100%. The room influence proportions
the effect between outside temperature and
room temperature on the flow set point.
Slope
2.6
Done
Slope
2.6
Done
Parallel shift
0.0ºC
Done
Parallel shift
0.0ºC
Done
Room influence
25%
Done
Room influence
25%
Done
