3
Contents
Thermostat Interface .....................................................................................4
Status Icons .........................................................................................4
Menu & Navigation Icons .............................................................5
Navigating the menu ......................................................................5
Menu ................................................................................................................6
Heating Schedule .......................................................................6
Clock ..................................................................................................8
Date ....................................................................................................8
Keypad lock ....................................................................................8
Optimisation ..................................................................................9
OpenTherm® boiler alerts (T4M only) ............................10
Standby mode..........................................................................................10
Away mode .................................................................................................10
Schedule Override ........................................................................................11
Temporary Override .............................................................11
Timed Override ......................................................................11
Turn Schedule Off .....................................................................11
Changing the Batteries (T4 & T4R only) ..........................................12
Wireless Receiver Box (T4R only) .........................................................13
Troubleshooting ............................................................................................14
Summary of Contents for LYRIC T4
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