Sullair Touch Screen Controller (WS)
Current Sullair touchscreen — replaces the older Supervisor on new builds but Supervisor is still supported for parts.
Manufacturer
Sullair
Display
7-inch color capacitive touchscreen.
Years produced
~2013 – present.
Power supply
24 VDC, 7-inch color touchscreen.
Ambient range
0 – 55 °C.
Protection rating
IP54 front.
Relay outputs
Star/delta or VFD run enable, blowdown solenoid, alarm, dryer, common warning.
Replaces
Sullair Supervisor (partial, on newer packages)
Used on
- Sullair LS/TS 60–250 hp
- ShopTek ST (larger)
- V-Series VSD packages
Features
- Multi-language icon UI
- Trend graphing on-screen
- Scheduled start/stop calendar
- AirLinx sequencer (up to 4 compressors)
Interfaces
- Ethernet (Modbus TCP)
- RS-485 (Modbus RTU)
- USB for firmware & trend export
Sensor inputs
- Airend discharge temp
- Sump pressure
- Package discharge pressure
- Oil filter ΔP
- Separator ΔP
Common fault codes
First checks
- Cooler & fan
- Fluid level and thermostatic valve
- Verify RTD
First checks
- Inlet valve operation
- Blowdown solenoid stuck open
- Minimum-pressure check valve
First checks
- Replace separator
- Confirm ΔP transducer reading
First checks
- Reset E-stops
- Check panel door interlock
Fault list is non-exhaustive and firmware-dependent. Always confirm against the controller’s on-screen help or OEM manual.
Wiring notes
- 24 VDC I/O on labeled terminal strip
- Ethernet drop for AirLinx sequencer
- USB port behind panel door — export weekly for trend history
Known issues & field notes
- Touchscreen calibration lost after backup battery dies — recal via service menu
- Firmware updates require Sullair-provided .bin file — no field patching
3 levels: Operator (no PIN), Maintenance (default 1111), Service (Sullair distributor only, changes per firmware).
Manuals & literature
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