Smart multi application controller LS 990 LS TOUCH

Overview
For comprehensive individual room control: LS TOUCH combines KNX operation, integrated visualisation and regulation on a high-resolution capacitive touch display, designed for building automation projects and residential applications.

Key features

• Supports up to 32 KNX functions per device
• Integrated proximity and brightness sensors
• One external floating input for push-button or sensor
• Warning and alarm functions including acoustic alarm
• Up to eight logic functions and eight weekly timers
• Room thermostat with integrated split-unit control and support for satellite units

User interface & customisation

• High-resolution capacitive touch display with smartphone-like swipe navigation
• Up to five favourite pages, up to four editable functions per page
• Direct adjustment of values (temperature, brightness) on favourites with selectable step sizes
• Function labelling at favourites level and multi-state icons for complex functions
• Configurable vertical swipe gestures and project-specific menu layout

Automation, scenes & timers
Up to eight weekly timers provide time-dependent control. Scenes can be saved and called directly on the device; users may edit timers, favourites and menu presentation to match project requirements.

Lighting & colour control

• Separate processing of brightness, colour and saturation for RGB applications
• Support for DALI gateway structures with separate brightness values
• HSV dimming with colour retention in white light
• RGBW support with independent white LED control

Shading & actuators

• Shading control without position feedback using long/short commands
• Support for scenes and scene extensions (save and recall)

Heating / Cooling & split units
Acts as a control and display element for temperature management: setpoints adjustable on favourites or detailed view; separate frost and overheat protection limits. Controls up to four split units as satellites (setpoint, mode, fan speed) and can run an internal controller to manage automatic on/off and mode changes.

Installation & compatibility

• Power supply via KNX bus
• Fits 1‑gang frames from JUNG LS 990 and LS ZERO ranges
• Available in various materials and colours; Les Couleurs® Le Corbusier® supported
• Recommended installation height: 140 cm; floating contacts (push-buttons, window contacts) connectable to binary input
• Supports Latin and Asian character sets for international use

Software & updates
LS TOUCH is continuously developed: regular firmware and ETS application updates are provided. A chronological change log documents version history.

Additional functionalities

• Adjustable default/home page after standby
• Selectable step sizes for setpoint adjustment (0.1 K to 2.0 K)
• Option to retain or reset user changes to setpoints
• Measured values or switch statuses can be displayed on favourites

Technical specifications

• Model family: LS TOUCH
• KNX functions: up to 32 per device
• Sensors: proximity, brightness
• External input: 1 floating contact input
• Logic functions: up to 8
• Timers: up to 8 weekly timers
• Thermostat & split control: integrated thermostat; supports up to 4 thermostat satellites and 4 split-unit satellites; controls up to 4 split units
• Display: high-resolution capacitive touch display
• Favourites: up to 5 pages; up to 4 functions per page
• Lighting: separate processing for brightness, colour and saturation; supports RGB, RGBW and DALI gateway structures
• Shading: control without position feedback supported
• Commissioning: ETS application supported
• Power supply: via KNX bus
• Frame compatibility: JUNG LS 990 and LS ZERO (1‑gang)
• Installation height: recommended 140 cm
• Languages: supports Latin and Asian character sets
• Software: regular firmware and ETS updates with change log