26
User Instructions
GB
Option 1 -  Enable or disable A/B programming 
(option 41 set to 5+2)
This enables or disables the A/B programming option. 
Press  + until Option 1 is displayed, use Λ  and  V to 
select required setting.
Setting 0
Disabled, unit operates as 5+2 or 24 hour product 
depending on installer settings (factory setting)
Setting 1 Enabled: activates A/B programming
Option 3 - Calendar clock rules
This establishes the rules that the automatic calendar 
clock follows to calculate changes between summer 
and winter time. Press + until Option 3 is displayed, 
use Λ and V to select required setting
Setting 0 Disabled.
Setting 1
Manual: user must change using + to advance and - to 
retard displayed time.
Setting 2 European rules. (Factory Setting)
Setting 3 USA rules (2007 onwards)
Setting 4 USA rules (pre-2007)
Option 4  - Time zone o set
This feature allows the time zone to be established 
and corrects time display.  Press + until Option 4 is 
displayed, use Λ and V to select required setting
Setting 0
UK models: this feature should be left at the factory setting 
of 0.
Setting 1
Central European time models: this feature should be left 
at the factory setting of +1:00.
-12 Hours +14 Hours
Rest of World: use Λ  and V keys to select o set from Universal time 
(GMT) for the location in which the thermostat is being installed.
To access User Advanced Programming
Press and hold V  and  PROG for 3 seconds. This will take you into 
User Advanced Programming.  Use + and - keys to scroll backwards 
and forwards between options then Λ  and  V keys to change option 
settings. The  ashing digit on the right hand of the display indicates 
the number of the selected option.