6 720 645 347 (2010/09)
Troubleshooting
|
69
Fault 51
Incorrect temperature sensor type
connected
122 Collector temperature sensor
type used as cylinder
temperature sensor (T
2
).
Use correct type of
temperature sensor.
Æ
Specification in ISM
installation instructions.
123 Cylinder temperature sensor
type used as collector
temperature sensor (T
1
)
132 Temperature sensor type PTC
1000 used as cylinder
temperature sensor (T
2
).
133 Temperature sensor type PTC
1000 used as collector
temperature sensor (T
1
).
Fault 52
Temperature sensors reversed
124 Temperature sensors (T
1
and
T
2
) reversed.
Check the temperature
sensors and swap the
connections if necessary.
Fault 53
Temperature sensor fitted in wrong location
125 Collector temperature sensor
(T
1
) fitted on collector array
inlet.
Fit collector temperature
sensor (T
1
) close to collector
array outlet.
Fault 54
Temperature for thermal disinfection not
reached in solar cylinder
145 Maximum temperature for
solar cylinder too low.
Set higher maximum
temperature for solar cylinder.
Æ
Limiting cylinder
temperature, page 50
Pump rate of disinfection
pump (PE) too low.
Set higher pump speed on
disinfection pump (PE) or, if
possible, open flow restrictor
further.
Thermal disinfection cancelled
manually before the required
temperature was reached in
the solar cylinder.
This is not a fault.Fault
message is shown only for 5
minutes.
Fault 55
Solar system not yet commissioned
146 Solar thermal system is not yet
in operation.
Fill, vent and prepare solar
thermal system for
commissioning according to its
documentation. Then
commission solar thermal
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”.
Information displayed (
Æ
Items 1, 3 and 4 in
Fig. 17)
Text
Code Cause
Remedy (by contractor)
