TECHNICAL MANUAL
CVM 3000
C 5030 CV/04-99 GB
27
6 Alarm signals
CODE
ALARM
Type of reset
Possible causes
E000
Antifreeze
M
%
Not correct water flow rate to
the evaporator
%
Water pump off
%
Incorrect setting of set point
and
∆
t
%
Incorrect setting of antifreeze
set point
E001
Mains voltage
A
%
Voltage values exceed limits set
in parameters 3 and 4
E002
Mains frequency
A
%
Frequency values exceed limits
set in parameters 5 and 6
E003
Chilled water circuit flow
switch
A
%
Not correct water flow rate to
the evaporator
%
Air bubbles in water circuit
%
Flow switch malfunction
E004
Hot water circuit flow switch A
%
Not correct water flow rate to
the condenser
%
Air bubbles in water circuit
%
Flow switch malfunction
E005
Low inlet temperature
Only on alarm
list/A
%
This alarm is detected only for
heat pump unit, after a
chiller/heat pump switchover
E006
High inlet temperature
Only on alarm
list/A
%
This alarm is detected only for
heat pump unit, after a heat
pump/chiller switchover
E020
Incorrect configuration
A
%
Error in the programming of
the configuration parameters
E028
Incorrect probe calibration
M
%
Unit start-up with Eeprom not
yet programmed
%
Unit start-up with Eeprom
already programmed but with
problematic reading of the
probe calibration data