Installation manual

37Installation Manual for VRC 400 weather compensator
Start-up 11
Display Setting by turning the dial
Anti-legionnaire’s disease
system
1=Activate the anti-legion-
naire‘s disease function.
Every Wednesday, one
hour before the first time
window, a connected hot
water cyclinder is heated to
70 °C, the circulation pump
is switched on and oper-
ated at 70 °C for at least 30
minutes.
Default setting = 0 (off)
Display Setting by turning the dial
Heating curve
The heating curve repre-
sents the ratio between out-
side temperature and target
flow temperature.
Default setting: 1,2
Room temperature modula-
tion (wall installation only)
1 = Room temperature
modulation
(including the room tem-
perature in the flow tem-
perature calculation)
2 = Thermostat function
(switching off the heating
when the set room tempera-
ture is reached)
Default setting: 0 = No room
modulation