16
Compressor thermal protection alarm:
- Compressor thermal protection open.
- Faulty power supply.
E03
E01
E02
Fan thermal protection alarm.
E04
MENU STRUCTURE
MAIN DISPLAY
It shows:
Inlet water temperature
Active alarms
LEVEL 1
Probe status
ALARMS
SET POINT
Active alarms Codes
LEVEL 2
-----
Press
Press
ALARM CODES
The unit self-protects through safety devices; when any of these safety devices detect an anomaly, this is shown in the display
in order to advise the operator.
The activation of an alarm brings about:
- The display of the alarm code beginning with the letter E and follows a number; if more than one alarm will be activated, the
alarm shown would be the one with the lowest numerical value.
- In some cases, it can block some of the outputs, stopping the unit, depending on the type of alarm.
E00: This indication is not an alarm; it indicates that unit is turn off from ON /OFF remote.
VIS (Visualization): It indicates the type of alarm shown on the display.
RE (Reset): Type of reset:
AUT: AUTOMATIC RESET: Some alarms are automatically reset. When the cause is no longer present, they disappear
from the display.
MAN: MANUAL RESET: Press ON/OFF button and
release within 2 seconds. If the alarm conditions have been removed,
the instrument returns to the normal operation and the alarm relay is de-energized. If on the other hand, the alarm conditions
persist, then call for technical service.
Reset and check:
Check refrigerant charge.
Check the refrigerant circuit is not
blocked.
Check connections and protections.
Check power supply.
MAN
VIS. RE
MAN
AUTO/
MAN
DESCRIPTION EFFECT ACTION
High pressure switch alarm.
This alarm may indicate the following problems:
- High pressure switch protection.
- Stopped fan.
Reset and check:
Coil is clean and not blocked
.
Water flow on the heating cycle.
Check fan protection.
Condenser air temperature is very high.
Check refrigerant charge.
Low pressure switch alarm.
This alarm may indicate the following problems:
- Low amount of refrigerant.
- Low water flow in cooling cycle.
- Blocked coil in heating cycle.
- Stopped fan.
After two automatic resets in one hour, it comes
to be a manual reset.
Reset and check:
Coil is clean and not blocked
.
Water flow on the cooling cycle.
Check fuses of the fan.
Evaporation air temperature is very low.
Check refrigerant charge.
Circuit 1
compressors
stop
Compressor 1
circuit 1
stops
Reset and check:
- Fan
- Check connections and protections.
MAN
Circuit 1 Fan
and circuit 1
compressors
stop
Circuit 1
compressors
stop
Press
mode
on off