Flowserve URB 2 - Manual (Page 39)

39
Malfunctions
– continued –
Status messages
Note
The system message “T MAX exceeded” is given when the ambient temperature is
excessively high. Note that the temperature of the boiler is not monitored.
If faults occur that are not listed above or cannot be corrected, please contact our service centre or
authorized agency in your country.
Control unit
TRV
540
TRS
540
NRS
142
NRG
1642
NRS
240
NRR
240
NRG
2640
LRR
140
LRG
1x4x
No communication X X X X X X X X X
Collective bit channel and 2 X
T MAX exceeded X X X X X X X X X
Plausibility error X X
Electrode lost X X X X
Electrode defective X
PT 000 defective X
Sensor defective X
A/D converter X
Limiter
TRV
540
NRS
14x
NRG
1x4x
Faulty communication X
No communication X X X
Collective bit,
self-checking routine
X X X
T MAX exceeded X X