Control & overviews
31b
Service parameters (10-199)
Circuit I (Heating)
Lines  Setting ranges Factory settings Your settings
147 Acceptable temperature deviation 
below desired flow temperature 
(ΔT1
ALARM
)
OFF / 1 ... 30 K OFF K
148 Acceptable temperature deviation 
above the desired flow temperature 
(ΔT2
ALARM
) 
1 ... 30 K 5 K K
149 Time interval Δt
ALARM
 before 
activation of alarm function
1 ... 99 min. 10 min. min.
174 Motor protection
OFF / 10 ... 59 min. OFF min.
196 Service pin LON
ON / OFF OFF
197 LON reset
ON / OFF ON
198 Daylight saving time changeover
ON / OFF ON
199 Slave address
0 ... 9, 15 15