6
DESCRIPTION
VIS.
EFFECTS
Probe temperature higher than 37ºC.
Probe temperature lower than 8ºC.
The unit is working, and the warning disappears when temperature is
between 8ºC and 37ºC.
Unit will
stop
Check connections between unit and thermostat.
Compressor
will stop
Check connections of indoor coil temperature probe.
Compressor
will stop
Compressor
will stop.
Condensate
pump working.
Unit will stop
Unit will stop
The unit self-protect through safety devices, when any of these safety devices detect an
anomaly, shown in the display in order to advise the installer.
ALARM CODES
The activation of an alarm brings about:
- The display of the alarm code on the display.
- The blocking of some or all the outputs, depending on the type of alarm.
VIS (Visualization): 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.
DESCRIPTION
Compressor overload.
During heating cycle the indoor
coil temperature has been too
high.
VIS.
RE
Ambient temperature regulation
probe error.
Indoor coil temperature
probe error.
AUT
AUT
Overflow of water condensing.
The float switch has detected
water overflow.
EFFECTS
ACTION
AUT/
MAN
AUT
These protections are automatic reset for the first time. To
reset for second time press button "ON/OFF" until alarm
disappears.
If the alarm shows up again, check:
Connections of indoor coil temperature probe.
Indoor unit works properly.
Clean air filters.
These protections are automatic reset, the alarm resets
automatically when there is no more water.
If the alarm shows again, check the water drain, and the
connections of float switch.
AUT
Short circuited temperature
probe.
AUT
Check probe connection.
Temperature probe open.
Check probe connection.
UNIT PROTECTION DEVICES
AGAINST FREQUENT COMPRESSOR CYCLING
When COOL/HEAT/AUTOMATIC is selected, the start up of the unit will be delayed for 3 minutes, to protect the
unit against frequent compressor cycling.
AIR PREHEATING
On heat mode, the indoor unit fan will not start or will start at low speed, to prevent from air cool feeling, until the
indoor unit temperature reaches the set temperature then the unit will operate to the selected temperature.
DEFROST CYCLE
When the unit is operating on heating mode, the unit will do defrost to eliminate the ice that will produce the
outdoor unit; on this cycle, the indoor unit fan switches off.
AUTO RESTART
If power failure occurs during operation, the unit will start in the same operation mode as before after power
recovery.
FREEZE-UP PROTECTION
If the unit is operating on cooling only mode, and the indoor unit coil temperature is below a set value, the unit
stops.
DETECTING BROKEN SENSOR
If the control system detects a sensor reading out of permissible deviation, the unit stops.
WARNINGS