Bulex Thema Condens AS 48-A, Manual, Page: 95 / 199

MAKSİCONDENSE 48-65
Notes
03/2020 89 T
EKNİK EĞİTİM VE DESTEK
3.3.6.5 Pressure change detection
The pressure change detection is carried out before every unit start-up
.
Pressure change
evaluation
Water pressure sen-
sor > 0.5 bar?
Increase water pressure
No
Set prioritising di-
verter valve to heat-
ing mode, pump ON
for 10 seconds
Yes
Five further attempts
with pump 10 s ON,
pump 7.5 s OFF
Pressure change
> 50 mbar?
Yes
Operation without
subsequent dry fire
test
Yes
Pressure change
> 50 mbar?
Block with F.75
D.149 = 3
After five unsuccess-
ful attempts
No
No
Yes
Yes