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Store stat
ON OFF
1
2
ng
S2
Gr
ey
Hot water heating
Zone valve
L N E S1 S2
Bl
G/
Y
Br
Or
an
ge
Gr
ey
PRV
Solar
pumping
station
Solar panels
S1
S1 : Solar flow temperature sensor
S2 : Solar zone store temperature sensor
S3 : Store overheat temperature sensor/Thermostat
P1
S2
S3
Torrent GreenHeat SOL
E C 1 2
on
off
NOTE
With some solar controllers do not have overheat sensor, S3, as shown above
In this case the mechanical overheat thermostat (S3) may used and wired as
shown in figure 4.4 to protect the store from over heating by stopping the solar
Pump at pre-set temperature limit
Boiler hold off pipe thermostat
Type LL641B1012
Temperature range: 50 – 95
o
C
NOTE
As part of system setup and commissioning, it is important that this boiler hold-off pipe thermostat
be adjusted to find the best setting for each individual installation.
Failure to do so will give under performance of either the boiler or the solar heating system
S1 S2 S3 E N R1 N R1 N L
1 2 3 4 5 6 7 8 12 13 14 15 16 17 18 19 20
Solar controller
Boiler hold off pipe thermostat
Type LL641B1012
Temperature range: 50 – 95
o
C
INSTALLATION
WIRING DIAGRAM
Содержание Torrent GreenHeat HP TGH170-HP
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