Kingspan Temperature differential controller Installation And Operating Instructions Manual page 37

9.3.6 Thermostat
Display
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
742.892 | 11.50
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 value is set lower than T
on
When the sensor temperature drops below T
until the temperature exceeds T
Cooling: The T value is set higher than T
on
When the sensor temperature exceeds T
until the temperature drops below T
Time restriction: The function is executed when the current time lies
within one of 3 configurable time windows.
Note
The T value can be set to the same value as T
on
setting has no practical application.
Characteristic
Activation
Output
Pump type (R1, R2 only)
Pump characteristic (HE only)
Sensor input
Switch-on temperature T
Switch-off temperature T
Time restriction
Time window 1 start/end
Time window 2 start/end
Time window 3 start/end
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
on until the temperature difference drops below T
this, the discharging of the heating source can be limited to a particular
temperature range (T
src min.
can be limited to a maximum value (T
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.
.
off
on
.
off
.
off
, the output is switched on
on
.
off
min.
on, oFF
free output R1/R2/R
AC, HE
AA, Ab, C (see page p. 16)
0 °C
on
0 °C
off
on, oFF
0:00
0:00
0:00
diff on
/T ) and the loading of the heating target
src max.
).
sink max.
, the output is switched on
. However, this
off
Factory
max.
setting
oFF
S
1)
AC
1 ... 5
180 °C 20 °C
180 °C 20 °C
oFF
23:59 00:00/00:00
23:59 00:00/00:00
23:59 00:00/00:00
, the output is switched
. In addition to
diff off
EN
–
–
–
37