Steca TR A502 TT, Инструкция по установке и эксплуатации

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39
742.114 | 14.50
EN
10.3.7 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)
bA
,
bb
,
C
(see p. 16) –
Sensor input 1 5 –
Switch-on temperature T
on
32 °F 350 °F 70 °F
Switch-off temperature T
off
32 °F 350 °F 70 °F
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)
Notice
Standard pump: Set
AC
!
High-efficiency pump: Set
HE
!
External consumer (e.g. 115 V relay): Set
AC
pump type!
10.3.8 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.