36
742.110 | 14.50
EN
T
F
unc
SET
min
Min. solid fuel boiler temperature
85 °F
200 °F
125 °F
Control target for solid fuel boiler
temperature (speed control =
on
)
32 °F
200 °F
140 °F
1)
Notice
Standard pump: Set
AC
!
High-efficiency pump: Set
HE
!
2)
Notice
External consumer (e.g. 115 V relay): Set
AC
pump type and set the speed control to
oFF
!
10.3.12 Heating return increase
T
T
F
unc
SET
on
A heating return increase using a three-way valve switches on and off as
follows:
If the temperature difference between the tank and the heating return ex-
ceeds the value T
diff on
, then the three-way valve is switched on (heating
return increase
on
), until the temperature difference drops below T
diff off
.
The three-way valve must be connected to output
R1
.
Display
Characteristic
min.
max.
Factory
setting
Activation
on
,
oFF
oFF
Sensor input for storage tank
temperature
1 ... 5
–
Sensor input for heating return
increase temperature
1 ... 5
–
Switch-on temperature difference
T
diff on
T
diff off
+ 4 F
100 F
12 F
Switch-off temperature difference
T
diff off
0 F
T
diff on
– 4 F
6 F
10.3.13 Thermostat
T
F
unc
SET
on
Switches output
R1
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.
Содержание TR-A501T-U
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