CLIVET WSAN-XES 18.2, Инструкция по установке, использованию и техническому обслуживанию, Страница: 39 / 52

39 WSAN-XES 18.2-35.2 M0SM40N17-04
TROUBLESHOOTING
Alarm reset: switch the unit off and on again.
Before resetting an alarm identify and remove its
cause. Repeated resets can cause irreversible
damage.
Master Unit
If the master unit fails, the slave units also stop
working.
The unit is in protection in the following
conditions:
1. High pressure or protection due to drain
temperature
2. low voltage
3. compressor current protection
4. frequency protection of the inverter compressor
5. condenser high temperature
6. high temperature difference between the entering
water and the leaving water
7. antifreeze protection
8. drain temperature sensor malfunction
9. low evaporator temperature
10. frequency protection by voltage
11. compressor inverter malfunction
12. fan motor protection
13. water return high temperature, in cooling
14. low pressure antifreeze protection
15. High temperature of inverter compressor module
When the unit fails or is in protection, the water pump
continues working (except for water flow alarm, voltage
protection, phase sequence protection).
When the master unit is in protection, only the master
unit stops and the other units carry on working
.
When a slave unit is in protection, this unit stops and
the other units are not involved
.
If the master unit fails, the slave units also stop
working.
Temperature sensors
All of the temperature sensors are classed as faulty
when the voltage on the corresponding input is lower
than 0.05 V or higher than 4.95 V.
After an error has been signalled, all units stop. The
error is eliminated after the sensor has been restored
.
Error code
Description troubleshooting
1E0
EEPROM error - main board
2E0 EEPROM error - inverter A module
3E0 EEPROM error - inverter B module
E1
phases sequence - control from main board
The three phases must be present at the same time and offset
by 120°
Restoring the power supply clears the error.
Note: the power supply is checked only in the initial switch-on
phase. It is not controlled when the unit is in operation.
E2
communication error between main board and keypad
If an error occurs between the wired controller and the master
unit module, all of the slave units stop.
If an error occurs in a slave unit (between the master unit and a
slave unit), the slave module with the transmission error stops.
The number of controlled units on the wired controller is reduced,
the wired controller displays EC and the wired controller indicator
flashes.
The error is eliminated after the transmission has been restored.
If an error occurs between slave units, both units stop. The
master unit and the previous slave units are not involved.
E3
“Total” outlet water temperature probe Tw fault
(only for master unit)
Only the master unit controls the sensor fault, the slave unit does
not control it.
When the number of units in line is 2 or more, check if the Tw
sensor is faulty or is not required.
When the number of units in line is 1, Tw = Two by default;