gledhill TEC140-OV Installation & Servicing Instructions Manual page 31

Store stat
ON OFF
C 1 2
E SL
E C
W
Gr
hit
ey
E
Boiler hold off pipe thermostat
Type LL641B1012
Temperature range: 50 – 95°C
Typical thermal store
temperature set point 75-77°C,
must be set at a temperature
Port
which prevents the contents
hare valve
of the thermal store exceeding
100°C. See page 26 for further
guidance. Installer must set the
thermostat correctly during
commissioning.
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
Solar controller
230Vac
50Hz
Solar
supply
Pump
L N E L N E S2
1 2
on
off
C
E
NOTE
Some solar controllers, the overheat protection is provided by a temperature sensor,S3,
which is wired directly to the solar controller same as sensors S1 and S2
In this case the mechanical overheat thermostat (S3) shown in this diagram is not required and
the solar pump is wired straight to the solar controller.
Solar panels
S1
Boiler hold off pipe thermostat
Type LL641B1012
Temperature range: 50 – 95°C
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.
NC Overheat
thermostat
(S3)
Page 31
INSTALLATION
PRV
S1
Solar
pumping
station
P1
S1 : Solar flow temperature sensor
S2 : Solar zone store temperature sensor
S3 : Store overheat temperature sensor/Thermostat
WIRING DIAGRAM
Torrent ECO SOL
S3
S2