69
Troubleshooting
6 720 617 763 (2008/09)
Fault 54
Temperature for thermal disinfection not
reached in solar cylinder
145
Maximum temperature for
solar cylinder too low.
Set maximum temperature
for the solar cylinder higher
Æ
limit cylinder tempera-
ture, page 49.
Delivery rate of disinfection
pump (PE) too low.
Set higher pump speed on
disinfection pump (PE) or, if
possible, open flow restric-
tor more.
Thermal disinfection cancelled
manually before the required
temperature was reached in
the solar cylinder.
This is not a fault.Message is
shown only for 5 minutes.
Fault 55
Solar system not yet commissioned
146
Solar system is not yet in oper-
ation.
Fill, bleed and prepare the
solar thermal system for
commissioning according to
its documentation. Then
start up the solar system.
Fault 56
At least one pump/valve in manual mode
147
Pump (SP) in manual mode.
Reset parameters for pump
or valve to “Auto”.
154
Pump (PE) operated manually.
Fault 59
Mass flow rate in solar system too high/low.
201
Mass flow rate in solar system
for collector group 1 is too
high.
Set mass flow in solar sys-
tem correctly (e.g. increase/
decrease pump speed) and
if necessary open or close
flow restrictor more on solar
station.
Guide figure: 20 - 40 kg/m
2
of collector area per hour.
Check setting for collector
area, type and climate zone
on Solar optimisation menu.
202
Mass flow rate in solar system
for collector group 1 is too
low.
Information displayed (
Æ
Pos. 1, 3 and 4 in fig. 26)
Text
Code
Cause
Remedy (by installer)
Tab. 23
