Neuron XT
ELGi's tropical parameter sets are the real deal — on hot-climate installs, confirm the machine is running the high-ambient profile before chasing phantom high-temp trips.
Manufacturer
ELGi
Display
Color TFT, icon + plain-text menus, multi-language.
Years produced
~2018 – present on EG / EQ / AB series.
Power supply
24 VDC internal.
Ambient range
0 – 50 °C (tropical-rated builds).
Protection rating
IP54 front.
Relay outputs
Contactors, load solenoid, blowdown, fan, dryer, alarm.
Used on
- ELGi EG series global screws
- EQ small industrial
- AB oil-free (variant firmware)
Features
- Air~Alert IoT monitoring with predictive alerts
- Built-in 4-machine sequencing
- High-ambient parameter sets for tropical installs
- Energy report pages
Interfaces
- Modbus RTU standard
- Air~Alert telematics (option)
- USB log export
Sensor inputs
- Airend discharge temperature (PT100)
- Package pressure transducer
- Sump pressure
- Oil filter and separator differential switches
- VFD feedback (VSD builds)
Fault code lookup
First checks
- Oil level / cooler
- Thermal valve
- Ambient above rating — check tropical kit presence
First checks
- Oil level
- Oil pump
- Blowdown sealing
First checks
- Loop check
- Connector
First checks
- Drive display
- Heatsink cleaning
- Line conditions
First checks
- Replace element
- Check oil type and interval
First checks
- Signal strength at antenna
- SIM status
- Advisory only — machine continues
Fault list is non-exhaustive and firmware-dependent. Always confirm against the controller’s on-screen help or OEM manual.
Sensor pin resistance & signal values
Pin-level resistance and signal values for the sensor types this controller uses. Works offline. De-energise the panel and lift one lead before ohming any element.
Wiring notes
- Tropical builds have different fan-control parameters — verify parameter set after any board swap
- Modbus and Air~Alert share the comm card; register conflicts if both polled aggressively
- Sensor harness uses sealed connectors — replace seals after service
Known issues & field notes
- High-humidity installs see connector corrosion despite seals — dielectric grease at every service
- Air~Alert aggressive-polling firmware early builds could watchdog the display — update firmware
Service PIN via ELGi service network.
Manuals & literature
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