6
DIL switch settings
Heating selection 
Slide the DIL switches to the 
settings required (see below)
Cooling selection 
COOL
ON/OFF
6 CYCLES
°F
COOL
NO DELAY 
4 MIN DELAY
°F
HEAT
CHRONO
3 CYCLES
°C
HEAT
2 MIN DELAY
°C
ON/OFF - boiler switches 
ON when below set 
temperature and OFF when 
above
CHRONO - 
energy saving 
feature which fi res the 
boiler at regular intervals to 
maintain a set temperature, 
achieving a constant 
ambient environment for 
the user.
 
  use 6 Cycles for radiator  
    systems
  use 3 Cycles for       
    underfl oor heating
GB - Installation Instructions
COMPRESSOR 
DELAY