LIOB‑AIR is a fully IP based variable air volume controller (VAV controller) with a predefined, flexible, reprogrammable application program and sophisticated management functions for a building ventilation system.
The L‑STUDIO AIR designer supports fast and flexible project design meeting any VAV system requirements. Each VAV controller has a BACnet and an OPC network interface and integrates seamlessly into every BMS. The graphic pages for operation, supervision, and device configuration are hosted on the LIOB‑AIR eliminating the need for a Tridium or whatsoever middleware component. Without any additional effort, L‑STUDIO AIR seamlessly integrates into the LWEB‑900 building management system. Local trending and alarming provide in depth operating conditions to the BMS. Local scheduling allows reliable zone operation even if the network is down. Sophisticated DCV algorithms save energy and 24/7 online test algorithms ensure proper system operation and detect malfunctioning devices like a blocked damper actuator, a stuck reheat valve, a dead series fan, etc.
Communication can be established via Ethernet or via the optional meshed WLAN. The dual Ethernet interface allows daisy-chaining VAV controllers for simple network wiring. The optional built-in WLAN supports diversity antennas for reliable wireless communication in a self-healing meshed network topology. A dedicated port connects the L-STAT room operator panel for user interaction tasks. The builtin damper actuator communicates via MP-Bus and provides detailed status information. The built-in differential pressure sensor is used to measure the air flow. A number of universal inputs and analog and digital outputs can be configured to connect additional sensors and actuators. Additional devices are supported by an extra L-IOB, by RS-485 or wireless by EnOcean. An optional LTE-800 connected to the USB port allows for remote site access over a mobile network.
IoT Integration
The IoT function (Node.js) allows connecting the system to almost any cloud service, either for uploading historical data to analytics services, delivering alarm messages to alarm processing services or operating parts of the control system over a cloud service (e.g., scheduling based on Web calendars or booking systems). Processing Internet information such as weather data in forecast-based control is also possible. Finally, the JavaScript kernel also allows implementing serial protocols to non-standard equipment in primary plant control.
DALI Integration
The LIOB-AIR20 model provides an additional DALI communication port. This model allows for easy integration of lighting functions in the LIOB-AIR controller without the need for a separate L-DALI device. While having the comfort of using all L-DALI functions directly on the LIOB-AIR this reduces cost of installation giving this model a competitive edge in LIOB-AIR projects that require lighting solutions as well.
- Standard VAV (only Air Flow Control without reheat and without fan)
- VAV with electric reheat up to 3 stages
- VAV with hot water reheat
- VAV with series fan
- VAV with series fan and electric reheat up to 3 stages
- VAV with series fan and hot water reheat
- VAV with parallel fan and electric reheat up to 3 stages
- VAV with parallel fan and hot water reheat
- All reheats can also have optional peripheral heat
Supported outputs (actuators)
- Damper MP-Bus
- Damper modulating
- Damper floating
- Parallel fan (also EC motors are supported)
- Series fan (also EC motors are supported)
- Reheat hot water modulating
- Reheat hot water floating
- Reheat electric modulating
- Reheat electric up to 3 stages
- Peripheral heat modulating
- Peripheral heat floating
- Peripheral heat on / off
Supported inputs (sensors)
- Pressure (internal)
- Space temperature
- Space temperature setpoint, absolute setpoint and/or offset
- Occupancy sensor
- Occupancy override (setback override)
- Discharge temperature
- CO2 or VOC sensor
- Relative humidity
- Window contact
- Damper feedback
- Flow setpoint external (European version)
The LIOB-AIR VAV controller integrates the following applications:
- Flow Control
- Flow Configuration
- Flow Alarms
- Air Flow Calibration
- Space Temperature Control
- Sequence Control
- Space Temperature Alarms
- Space Temperature Setpoint Control
- External Space Temperature Setpoint
- Occupancy Control
- Discharge Temperature Control
- CO2 or VOC Control
- Humidity control
- External Flow Setpoint Operation
- Data aggregation to the Air Handling Unit
- Group Functions
Features
- I/O controller with physical inputs and outputs
- Specific application program for variable air volume control
- Networking via redundant IP network
- Alarming, Scheduling, and Trending (AST™)
- Node.js support* for easy IoT integration (e.g. Google calendar, Alexa & friends, multimedia equipment, …)
- Trending of all important data points in the controller
- Configuration and parameterization with L‑STUDIO
- Room controller for up to 8 room segments
- Integration of the L-STAT Room Operator Panel
- Integrated LWEB‑802/803 room operation
- Integrates seamlessly into the LWEB‑900 system
- Built-in web server for device configuration
- Extension with physical inputs and outputs using one L-IOB I/O Module (LIOB-45x/LIOB‑55x)
- Dual Ethernet/IP interface
- Supports BACnet/IP or BACnet/SC
- Supports BACnet MS/TP (LIOB-AIR1 and LIOB-AIR20 only)
- B-BC (BACnet Building Controller) functionality, BTL certified
- Integrated OPC XML‑DA and OPC UA server
- Manual control using the jog dial
- Remote manual control via VCN client
- 128x64 graphical display with backlight
- Local display of device and data point information as clear text and via symbols
- Easy device replacement without any additional software
- Supports EnOcean: LIOB‑AIR20: built-in; LIOB‑AIR1, LIOB-AIR2, LIOB-AIR13: needs LENO‑80x
- Supports WLAN: LIOB‑AIR1, LIOB‑AIR13, LIOB-AIR20: built-in; LIOB‑AIR2: needs LWLAN‑800
- Supports LTE through LTE‑800 Interface
- DALI Integration (LIOB-AIR20 only)
- Integration of an actuator via MP-Bus
- Differential pressure sensor
- Damper actuator included
- Configurable Bluetooth beacons and services: indoor navigation, asset tracking (requires LIC-ASSET license) and access to LWEB-900 room control solution (only LIOB-AIR20)
*requires L-IOT1 software license
L-STUDIO AIR Next generation VAV control - Video
LIOB-AIR Controller Products | |
L-ACT101-MP | |
 | Actuator 5/8‘‘, 5Nm, MP-Bus cable |
 Start quote request Documentation and Software | |
L-ACT102-MP | |
 | Actuator 3/4‘‘, 5Nm, MP-Bus cable |
| Start quote request Documentation and Software | |
L-IOT1 | |
 | Add-on Software License to enable IoT functionality on LIOB-585/586/587/588/589, LIOB-590/591/592/593/594/595/596, LIOB-AIR, and LINX-102/103/202/203 |
| Start quote request Documentation and Software | |
LIC-ASSET | |
 | LIC-ASSET, Add-on Software License to activate asset tracking (for LDALI-ME20x-U, LDALI-3E10x-U, LDALI-PLCx, LROC-400, LROC-401, LIOB-AIR20, LIOB-591) |
| Start quote request Documentation and Software | |
L-STUDIO | |
 | Device configuration and programming suite |
| Start quote request Documentation and Software | |
L-TEMP2 | |
 | External temperature sensor (NTC10K) for use with L-IOB Universal Inputs |
| Start quote request Documentation and Software | |
LDALI-BM2 | |
 | Quadruple DALI pushbutton coupler |
| Start quote request Documentation and Software | |
 3D View | |
0768a231cae84dbc8a89ed672fcc2aa3 | |
LDALI-MS2-BT | |
 | DALI-2 multi-sensor (presence detection, illuminance sensor, IR receiver, temperature sensor, humidity sensor, 3 digital inputs, Bluetooth), up to 12 m mounting height |
| Start quote request Documentation and Software | |
| 3D View | |
db516c3ddb4b4c978619b4a5ca49cf48 | |
LDALI-MS4-BT | |
 | DALI multi-sensor (presence detection, illuminance sensor, IR receiver, temperature sensor, humidity sensor, 3 digital inputs, Bluetooth, flat lens), up to 5 m mounting height |
| Start quote request Documentation and Software | |
| 3D View | |
b91ded5a0eea4cfeb7f4fc638c10ad8c | |
LDALI-PD1 | |
 | DALI Phase-Cut Dimmer Module |
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| 3D View | |
e04904a9fe7c4ab5b93502610d764b42 | |
LDALI-PWM4 | |
 | PWM module, DALI, 4 x 3 A LED outputs, 24 V DC ext. |
| Start quote request Documentation and Software | |
| 3D View | |
2e01b229b46a437da3496b21a88f0510 | |
LDALI-PWM4-RGBW | |
| PWM module RGBW, DALI, 4 x 3 A LED outputs, 24 V DC ext. |
| Start quote request Documentation and Software | |
| 3D View | |
2e01b229b46a437da3496b21a88f0510 | |
LDALI-PWM4-TC | |
| PWM module tunable white, DALI, 4 x 3 A LED outputs, 24 V DC ext. |
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| 3D View | |
2e01b229b46a437da3496b21a88f0510 | |
LDALI-RM5 | |
 | DALI Relay Module 10 A, Analog Interface 1 – 10 V |
| Start quote request Documentation and Software | |
| 3D View | |
b67a05de94b549b88a75ee75a261c5ca | |
LDALI-RM6 | |
 | DALI Relay Module 10 A, Analog Interface 1 – 10 V, “spud-mount” |
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| 3D View | |
4c777290ae6a47cba308ced70d41397c | |
LDALI-RM8 | |
 | DALI Relay Modul, 8 channel |
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| 3D View | |
63c2b999846f45439ef9d69a5b6fe952 | |
LENO-800 | |
 | EnOcean Interface 868 MHz Europe |
| Start quote request Documentation and Software | |
| 3D View | |
3388466f6f1d45adb75659c84b6eae7c | |
LENO-801 | |
 | EnOcean Interface 902 MHz USA/Canada |
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| 3D View | |
eb7530e32b764531af31f5221b303fc3 | |
LENO-802 | |
 | EnOcean Interface 928 MHz Japan |
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| 3D View | |
b35cd07b9a2c4caea8708199d97d7a84 | |
LWLAN-800 | |
 | Wireless LAN Interface IEEE 802.11bgn |
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| 3D View | |
0cbc0ae8402248c6978a6b1769a2844b | |
LTE-800 | |
 | LTE Interface |
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| 3D View | |
58bb622cb29e45c1a28a9cd40a0e8603 | |