Padlock Symbol.
Whenever this symbol is shown, a control limit has been reached, or a button,
or other function has been locked out.
Spanner Symbol.
If you see a spanner ICON flashing on your LCD, the installer has left your
thermostat in “Commissioning mode” Although your thermostat will operate
your heating and cooling system whilst in “commissioning mode”, all active
safety and energy conservations delays have been disabled. It is therefore
HIGHLY recommended that you contact your installer and request that the
installer mode be disabled.
Satellite Symbol
This indicates that your thermostat is receiving or sending information to
another “communicating” controller, or a Building Management System.
Information received from the building supervisory control system may
change the function (mode or set temperature) of the thermostat. This is
normal and no cause for concern.
The intent of this communications is to permit the centralised control of building
functions which can include building climate control. To achieve this the BMS must be
able to override thermostat settings made by the user. This ability is especially useful
when a large facility has a number of heat pumps.
Summary of Contents for TZT-100
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