gledhill Torrent Stainless OV, Instruction Manual

Page: 14 / 25

Page 26 Page 27
Normally Open
2 Port Valve
E L N
Control
Stat 2
1 C 2
on off
Overheat
Stat
1 C
on
L N E
Mains supply
230VAC ~ 5 Amp
5
A
Local
double
pole
isolator
System pump
Boiler wiring terminals
L N E SL L N E
boiler pump
CH & HW Programmer
HW
OFF
HW
ON
CH
OFF
CH
ON
L N 1 4 3 2
Br Br
Room thermostat
ON OFF
1 E 2 4 3
Store stat
ON OFF
C E 1 2
1 2 3 4 5 6 7 8 9 10 11 12
Central heating
Zone valve
L N E S1 S2
Bl
G/
Y
Br
Or
an
ge
Gr
ey
Junction box
E N L
Hot water heating
Zone valve
L N E S1 S2
Bl
G/
Y
Br
Or
an
ge
Gr
ey
Torrent Stainless with ‘S’ Plan heating system with typical solar heating system
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 Stainless 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
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
N L E 1 2 3
Normally Closed
2 Port Valve
E N SL PL ML
Pipe Thermostat 1
1 C 2
on off
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
Temperature range: 50 – 95°C
Boiler hold off pipe thermostat
Type LL641B1012
Typical thermal store
temperature set point 75-77°C,
must be set at a temperature
which prevents the contents
of the thermal store exceeding
100°C. See page 26 for further
guidance. Installer must set the
thermostat correctly during
commissioning.
Temperature range: 50 – 95°C
Boiler hold off pipe thermostat
Type LL641B1012
Typical thermal store
temperature set point 75-77°C,
must be set at a temperature
which prevents the contents
of the thermal store exceeding
100°C. See page 26 for further
guidance. Installer must set the
thermostat correctly during
commissioning.
INSTALLATION INSTALLATION
WIRING DIAGRAM WIRING DIAGRAM