58
11 Faults
11.1 Failure messages Megacontrol
Table 44: Faults list Megacontrol
Failure message: Explanation: Failure
output:
Failure PT. Dis. Failure Pressure Transmitter discharge side (value >20mA) replace PT and reset system Urgent
Sys. press.to low System pressure too long under minimum value (3-5-13) Urgent
1
Sys press.to high System pressure too long above maximum value (3-5-11) Urgent
1
Sys. press.to low System pressure too long under minimum value (3-5-13) Non urgent
2
Sys press.to high System pressure too long above maximum value (3-5-11) Non urgent
2
No water No sufficient water or -pressure available at suction side Urgent
1
No water No sufficient water or -pressure available at suction side Non urgent
2
Maintenance req. Maintenance is required Non urgent
More pumps fail More than two pumps out of order Urgent
No refresh tank # No water refreshm in tank # (sensed by the flow detector) check precharged air pressure Urgent
Aver temp to high Average room temperature to high (sensed by the temperature sensor) Urgent
Curr temp to high Current room temperature to high (sensed by the temperature sensor) Non urgent
Temp.failure Pump # Failure pump #. Solve problem and reset the system Non urgent
Failure valve Failure supply valve. Solve problem and reset the system Urgent
Inlet sensor fail Failure inlet Sensor for level or pressure. (signal out of range) replace Sensor and reset
system.
Urgent
High water level Water level in receiver tank too high Non urgent
Crit. water level Water level in receiver tank critical (near to empty) Non urgent
Low water level Water level in receiver tank too low (system shut down for run dry protection) Urgent
1
Low water level Water level in receiver tank too low (system shut down for run dry protection) Non urgent
2
Comm. Error FC # Communication to variable frequency drive # is broken Non urgent
Incor. check sum F # FC # Incorrect check sum within the protocol Non urgent
Temp. sensor fail Failure Room Temperature Sensor. replace R.T.S. and reset system Non urgent
24V out of range Failure message due to internal 24V supply out of range Non urgent
5V out of range failure message due to internal 5V supply out of range Non urgent
3V out of range Failure message due to internal 3V supply out of range Non urgent
External off Failure message due to an external off command Urgent
Fire alarm Failure message due to an external fire alarm command Urgent
Failure VFD Failure of the VFD drive at discharge mode VFD change-over or VFD fixed one Urgent
Br. Wire Sens.dis Failure Pressure Transmitter discharge side (value lower then 4mA) connect or replace
Pressure Transmitter and reset system
Urgent
Br. Wire Sens.Inl Failure inlet Sensor for level or pressure. (wire break detection) Replace Sensor and
reset system.
Urgent
Fail. several FCs Failure for more than one FC occurs Urgent
Leakage There is a leakage in the unit. Solve problem and reset the system Urgent
Eeprom HW Error The Eeprom data was not saved due to HW problem Urgent
Manual off Pump #
off
Not urgent
Manual On Pump # Not urgent
More Pumps off Not urgent
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