Kingspan Temperature differential controller - Page 37

37742.892 | 11.50
EN
9.3.6 Thermostat
Switches an output on and off, depending on the temperature range
of any desired sensor. The function can be time restricted and is set for
heating or cooling as follows:
Heating: The T
on
value is set lower than T
off
.
When the sensor temperature drops below T
on
, the output is switched on
until the temperature exceeds T
off
.
Cooling: The T
on
value is set higher than T
off
.
When the sensor temperature exceeds T
on
, the output is switched on
until the temperature drops below T
off
.
Time restriction: The function is executed when the current time lies
within one of 3 configurable time windows.
Note
The T
on
value can be set to the same value as T
off
. However, this
setting has no practical application.
Display Characteristic min. max.
Factory
setting
Activation on, oFF
oFF
Output free output R1/R2/R
S
–
Pump type (R1, R2 only) AC, HE
1)
AC
Pump characteristic (HE only) AA, Ab, C (see page p. 16) –
Sensor input 1 ... 5 –
Switch-on temperature T
on
0 °C 180 °C 20 °C
Switch-off temperature T
off
0 °C 180 °C 20 °C
Time restriction on, oFF
oFF
Time window 1 start/end
Time window 2 start/end
Time window 3 start/end
0:00
0:00
0:00
23:59
23:59
23:59
00:00/00:00
00:00/00:00
00:00/00:00
1)
Caution:
Standard pump: Set AC!
High-efficiency pump: Set HE!
External consumer (e.g. 230 V relay): Set AC pump type!
9.3.7 Differential thermostat
Switches an output on and off as follows – time restricted and depend-
ing on the set temperature difference between 2 selectable sensors:
When the temperature difference exceeds T
diff on
, the output is switched
on until the temperature difference drops below T
diff off
. In addition to
this, the discharging of the heating source can be limited to a particular
temperature range (T
src min.
/T
src max.
) and the loading of the heating target
can be limited to a maximum value (T
sink max.
).
Time restriction: The function is executed when the current time lies
within one of 3 configurable time windows.
Speed control of the pump can be activated as required. The loading
strategy of the speed control system attempts to regulate the temperature
difference to match the switch-on temperature difference that has been set.