Installation Instructions

61
In weather-compensated mode, the
boiler water temperature is regulated
subject to the outside temperature.
Heating curve of weather-compensated control unit
Outside temperature in °C
Boiler water or flow temperature in °C
90
80
70
60
50
40
30
0 -5 -10 -15 -205101520
20
10
0
A
B
C
D
E
F
G
Setting of rotary selector "tr"
A
= 1
B
= 2
C
= 3
D
= 4
E
= Delivered condition
F
= 5
G
= 6
Frost protection function
Frost protection function is only possible
when an outside temperature sensor is
connected.
Frost protection function becomes active
at outside temperatures of < 5 °C. The
burner is switched on and the boiler
water temperature is held at 20 °C.
Control unit
Functions and operating conditions in weather-compensated mode
5609 059 GB
Service