SolaSmart™ Plus Installation Guide
Version 1.1 – Mar 2012
Page 8
M
OUNTING THE
S
ENSORS AND
C
ONNECTING
W
IRING
,
C
ONTINUED
Positioning
the Tank
(Upper Tank)
Sensor
Positioning
the Inlet
(Lower Tank)
Sensor
The Tank (Upper Tank) Sensor must always be fitted above the Solar
Collector return pipe. Labelled ‘TANK’ on the circuit board.
WARNING:
Damage to the Hot Water Cylinder can occur if the Upper Tank
sensor is not mounted correctly.
The Upper 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).
If a ‘pocket’ is not available, then bond the sensor against the metal wall of
the tank (not the outside cladding or insulation). Senztek has an ‘S3’
mounting option
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).
If the tank is outdoors then seal where the cable exists the hot water tank
with neutral cure silicon.
The Inlet (Lower Tank) sensor should be fitted into a metal immersion
‘pocket’ above the HWC electric element near the bottom of the tank (usually
just above the element). Labelled ‘INLET’ on the circuit board.
If a ‘pocket’ is not available, then bond the sensor against the metal wall of
the tank (not the outside cladding or insulation). Senztek has an ‘S3’
mounting option
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).
Precautions
Please note:
Removing or cutting the cladding may void the hot water tank warranty.
The sensor must not be immersed in water.
Unless the temperature probe is designed for immersion in water,
temperature probe pockets need to be completely dry before you insert the
probe; and the pocket must be protected against moisture entry after the
probe is fitted.
Sensor leads should be kept 300mm (12 inches) away from the mains and
communications cables.
Make sure the right sensors are mounted in the right places!
Continued on next page