SolaStat™- ST Installation Guide
Version 1.4 – March 2009 Page 7
MOUNTING THE SENSORS AND CONNECTING WIRING
Introduction The locations and way that the sensors are mounted is critical to ensure the
SolaStat™ -
operates correctly and at greatest efficiency;
protects the system against damage from extreme temperatures, and
displays hot water readings are accurately.
If the TANK and/ or INLET sensors are not mounted correctly –
There may be inaccurate Topout sensing, which could lead to damage to
the Hot water cylinder or other components
There may be inaccurate BioSafe sensing, which could increase the risk
of biological contamination
Hot water readings on the display may be inaccurate
If the ROOF sensors are not correctly mounted –
The unit may not be able to detect FROST settings (this can lead to the
collector panel bursting)
Please follow the instructions below carefully.
Positioning
the ROOF
Sensor
The ROOF Sensor should be fitted into a metal immersion ‘pocket’ just inside
solar collector in the hot water outlet pipe.
Apply plenty of heat transfer compound (available from your distributor)
between the sensor and the lining of the hot water outlet pipe.
Seal the sensor with neutral cure sealant and install external lagging. The
cable should also be insulated from the bare pipe.
Positioning
the TANK
Sensor
The TANK Sensor should be fitted into a metal immersion ‘pocket’ in the
upper region of the Hot Water Cylinder (HWC) (typically 1/3 of the way down
from the top of the HWC, or the first possible place below 1/3 of the way
down.
If a ‘pocket’ is not available, then bond the sensor against the metal wall of
the tank (not the outside cladding or insulation).
Apply plenty of heat transfer compound (available from your distributor)
between the sensor and the lining of the ‘pocket’ (or between the tank and
the sensor).
Continued on next page
