Senztek solastat-1 User Manual - page 9
SolaStat™-1-3 User Guide
Version 1.0 – April 2011
Page 6
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‘Smart Shutdown’ is a mode that your Controller will enter to minimise
damage. It can be activated when the temperature at the ROOF Sensor is
less than -40°C [-40°F] or more than 162°C [324°F].
This may also occur if:
B
there is a fault in the sensor wiring, OR
B
the solar collector has reached a very high temperature.
If Smart Shutdown mode is activated, you will see SSd on the display as
shown on the screen below.
The Roof sensor temperature may reduce to a safe level by itself, and the
unit will return to normal operation. SSd will no longer appear on the display.
This is a normal condition and it is not necessary to contact your installer or
maintenance technician unless ‘SSd’ is on the display for more than 12
hours.
Continued on next page
SSd on the display shows the controller is in Smart
Shutdown mode – i.e. there is a fault condition.
When SSd is displayed, the ROOF, or TANK light will be on or flashing to indicate which
sensor is faulty. In this case, a faulty ROOF sensor has been detected.