22
TPOne-S
Service 
Demo
Choose this feature to provide a demonstation of 
the audible and visual warning which will be given 
when service is due.
Installer Lock TPOne allows the installer to lock all installer 
settings by means of a passcode.  The 3 digit 
passcode can be chosen and set by the installer 
and once set will be required to make any installer 
setting changes.
Installer 
Reset
Select option to reset all installer settings to 
factory defaults.  
Note: Service interval will not be reset and can 
only be reset or deactivated by entering the service 
interval setup.
Installer Settings (Continued)
TPOne is an intelligent programmable heating control 
made easy. TPOne includes features which are designed 
to save energy. Look out for the leaf symbol throughout 
this guide for settings which can directly influence the 
energy saved.