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OUTPUT TESTS
6. Error message test - if we disconnect for example the temperature sensor TEMP1, an error will occur, see
the display, and output ERROR opens the contact.
Example of displayed errors: „Er-2-Er-2-Er-2... "
If the system diagnoses several errors at the same time, only the error that occurred first will be displayed.
After removing it, the second error will be displayed.
7. DEFROST function test always after activating the power supply of the module, the contact closes
momentarily for testing reasons (approx. 2 s).
Notice: This output is necessary for the correct function of the "HVAC compressor unit" system in "heat pump"
mode. The superior HVAC control system must ensure the correct appropriate response of the HVAC system.
After performing the tests, check the tightness of the bushings and reattach the cover of the installation box
and visually check its tightness.
6.3 INSPECTION OF SETTINGS DURING OPERATION
During operation, without deactivating the supply voltage, the pressure status of the system (if a pressure
sensor is installed), the set power code, the address for central control (MODBUS) and the last 10 error states
of the device can be verified.
1. After a short press of the SETTINGS button, the display shows the pressure (in bar). If the pressure
gauge is not used, 0 is displayed.
2. Hold the SETTINGS button for approx. 5 s.
The display shows the set power code in kW
3. Hold the SETTINGS button for approx. 5 s.
The display shows the set address for MODBUS communication. This address is usable (same) for LG
central control systems.
4. Hold the SETTINGS button for approx. 5 s.
The display shows numerical code of the selected user program for controlling the EEV.
In this mode, the values can be viewed, not changed. The "current setting information" mode ends
automatically after approx. 5 s and the display shows the current status of the operating requirements and the
temperature values.
2020/07/23
page 18
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