Kingspan Temperature differential controller Installation And Operating Instructions Manual page 44

EN
Display Parameter
Maximum collector
temperature
Minimum collector
temperature
Switch-on tempera-
ture difference heat-
ing return increase
Switch-off tempera-
ture difference heat-
ing return increase
Maximum tempera-
ture loading circuit
Minimum tempera-
ture loading circuit
Loading strategy
storage tank 1
Control target of dif-
ferential temperature
absolute temperature
Loading strategy
storage tank 2
Control target of dif-
ferential temperature
absolute temperature
44
min.
T + 20 K
P11
0 °C
T + 2 K
P13
0 K
T + 20 K
P15
0 °C
2 K
loading (dIFF)
Control target of 0 °C
loading (AbS)
2 K
loading (dIFF)
Control target of 0 °C
loading (AbS)
max.
180 °C 130 °C
T – 20 K 0 °C
P10
50 K 6 K
T – 2 K 3 K
P12
130 °C 100 °C
T – 20 K 0 °C
P14
2) 3)
dIFF , AbS
50 K 8 K
95 °C 60 °C
2) 3)
dIFF , AbS
50 K 8 K
95 °C 60 °C
Functionality
When the maximum collector
temperature is exceeded, no
more loading occurs until
the temperature drops to 3 K
below the set value.
Load only starts when the
minimum collector tempera-
ture is exceeded.
The heating return increase is
switched on (switching valve
on) when the switch-on tem-
perature difference between
the storage tank and heating
return temperature is reached.
When the switch-off tem-
perature difference is reached,
the heating return increase is
switched off.
The difference between P14
and the temperature of the
secondary side of the heat
exchanger controls the solar
circuit pump and the storage
tank loading pump. 1)
The storage tank loading
pump is only switched on
when the secondary side of
the heat exchanger is greater
than or equal to P15.
The loading strategy depends
on the storage tank system
used and the usage of the
system.
diff: Highest efficiency. The
control target is the tem-
perature difference between
the collector and the storage
tank. 4)
AbS: Useful when the system
requires particular tempera-
tures, e.g. to avoid switching
on the external back-up heat-
ing system.
The control target is the tem-
perature of the collector.
742.892 | 11.50
4)