short description

Product description

Brief description

• Intelligent ventilation unit with heat and humidity recovery for controlled ventilation and air extraction with an air volume of 40 to 120 m³/h.
• Compact and highly efficient – energy efficiency class A. Sound and energy-optimised fans in EC technology.
• Eligible for KfW funding: Especially suitable for modern new buildings or redevelopments.
• Very quiet unit with extremely low installation height (21 cm) and low weight (25 kg): This makes it particularly suitable for installation in suspended ceilings. Furthermore, installation on the wall or roof slope is also possible.
• Outside, outgoing, supply and exhaust air sockets in DN 125: Maximum flexibility due to 3D air socket, air duct connection possible to any side. To do this, simply reposition the EPP plug.
• Additional flexibility on the supply and exhaust air side: Optional DN 125 connection or direct air ducting with up to four DN 75 air ducts each for supply and exhaust air. Simple and quick installation by breaking out or repositioning the EPP plugs.
• ISO ePM10 ≥ 50 % (M5) filter in exhaust air and ISO ePM1 ≥ 60 % (F7) pollen filter in outside air.
• Filter change without tools.
• The ventilation unit is equipped with a state-of-the-art enthalpy heat exchanger with hygiene certificate according to VDI 6022, sheet 1.
• Bypass mode / Eco mode: ECO supply air, ECO exhaust air for passive summer night cooling.
• Complete separation of exhaust air/supply air ducts throughout the unit. This prevents unwanted recirculation of air. Viruses (e.g. Corona virus) and bacteria are therefore not transmitted.
• RLS 1 WR room air control included in the scope of delivery.
• The WS 120 Trio can be controlled via the APP (air@home) and the browser-based web tool (www.air-home.de) using an integrated LAN interface.
• Plug & Play: Easy commissioning thanks to free commissioning software and standard USB connection for commissioning, control update and service.
• USB interface integrated in the unit lid – no need to remove the unit lid for commissioning/software update.
• No pressure fluctuation sensitivity: The integrated/automatic volumetric flow constancy control ensures permanent compliance with the set volumetric flow under all operating conditions (e.g. filter contamination, air valve settings). This also results in easier commissioning/air volume measurement at the valves. The volumetric flows do not require any adjustment.
• Combi sensor (humidity/temperature) integrated as standard in the exhaust air enables demand-driven ventilation operation as well as an intelligent dehumidification strategy (excess humidity protection). Furthermore, the unit is characterized by a frost protection strategy adapted to the real demand.
• The heat recovery unit has a multifunction contact for the control of, e.g., brine earth heat exchanger (unregulated pump), operation and fault display, pre-heating or supplementary heat register, shutters or cooling.
• Two input contacts (12 V and 230 V) are available for, e.g., safety shutdown.
• Various inputs/outputs enable a control connection to other building service installations, e.g., the heat pump.
• Integrated MODBUS interface (TCP/IP and RTU) enables integration in the building control system.
• Integrated BACnet interface (TCP/IP) enables integration in the building control system.
• The optional K-SM plug-in module enables integration into KNX building control systems.
• The optional E-SM plug-in module enables integration into EnOcean systems.
• Optional additional circuit boards ZP 1 and ZP 2 for expansion functions such as zone damper, brine earth heat exchanger (regulated pump), filter differential pressure measurement.
• Maximum unit flexibility thanks to a wide range of equipment/connection options
• Modern unit module technology enables a high degree of user-friendliness for service and maintenance.

Features

Housing

• Housing made of black EPP with traffic white sheet steel cover.
• Simple filter change is possible without tools.
• Tight, thermal bridge-free and sound-insulated internal housing.
• Unit surface and unit’s internal housing are easy to clean.

Filter:

• ISO ePM10 ≥ 50 % (M5) filter in exhaust air and ISO ePM1 ≥ 60 % (F7) pollen filter in outside air.
• Filter exchange without tools.

Operation

• RLS 1 WR control panel included in the scope of delivery, 4 air levels, filter change indicator, fault display.
• Other control units can be connected in parallel.
• Mobile operation via APP (air@home) or browser-based web tool (www.air-home.de) via smartphone, laptop or PC enables, e.g.,
• Live reporting, user management.
• Needs-based automatic mode / Time-controlled automatic operating mode.
• Manual operation / OFF.
• ECO mode supply air or ECO mode exhaust air.
• Filter queries, error messages.
• Optional RLS T2 WS touchscreen control unit for the setting of:
• 2 automatic operating modes (Auto Sensor / Auto Time).
• 4 manual operating modes (ECO exhaust air / ECO supply air / MANUAL / OFF).
• Complete commissioning of the WS 120 Trio possible.
• Optional RLS G1 WS design control panel:
• ON/OFF
• 5 levels
• Automatic operation
• ECO supply air, ECO exhaust air
• Filter change and fault display
• USB connection for service/commissioning – free MAICO commissioning software.
• Network integration via integrated LAN interface.
• Smart-Home ready (e.g. Loxone via Modbus TCP/IP).
• Modbus TCP/IP and RTU integrated as a standard feature.
• Optional KNX plug-in module K-SM for integration into building control technology, www.knx.org.
• Optional EnOcean plug-in module E-SM for integrating the unit into the “EnOcean world”, www.enocean-alliance.org.

Control

• Standard demand-driven volumetric flow regulation (“decisive humidity value”).
• Continuously variable demand-driven adaptation of air volumes.
• Integrated excess humidity protection function.
• 3 temperature sensors in outside, outgoing and supply air.
• 1 combi sensor (temperature and humidity) in exhaust air socket.
• Up to four external sensors of different types (CO2, VOC, humidity) can be connected.
• Multifunction contact for the control of e.g. brine earth heat exchanger (unregulated pump), operation and fault indicator, preheating or supplementary heat register, shutters or cooling.
• Inputs for safety shutdown via 12V contact or 230V contact (e.g. smoke detector, fire alarm, differential pressureless fireplace).
• Additional pushbutton input for triggering time-limited intensive ventilation (intermittent ventilation).
• Expandable via optional additional circuit board ZP 1 for the control of:
• 3-way shutter (e.g. earth-air heat exchanger).
• A regulated pump (e.g. brine earth heat exchanger).
• An air shutter of a zone control.
• Switching contact use for external supplementary heat register.
• Expandable via optional circuit board ZP 2 for:
• Pressure constancy of the EC fans.
• Differential pressure controlled filter monitoring.
• Various inputs and outputs enable a control connection of the ventilation unit with another service installation, such as a heat pump.

Approvals and certificates

• Test report in accordance with DIN EN 13141-7.
• Hygiene certificates for housing material (EPP) and heat exchanger.
• DIBT approval has been applied for.

Heat exchanger/heat recovery

• Highly efficient enthalpy cross-counterflow heat exchanger.
• Heat recovery up to 81 % for the L variants and 84 % for the Q variants.
• Humidity recovery up to 69 %.
• Hygiene certificate (no bacteria, virus growth/virus transfer) according to VDI 6022, sheet 1.
• Heat exchanger can be cleaned with water, antimicrobial.
• No condensation connection required.

Bypass

• Eco mode: ECO supply air, ECO exhaust air for passive summer night cooling.

Frost protection

• Prevention of heat exchanger freezing at low temperatures by monitoring the outgoing air temperature.
• If there is a risk of frost, the outside air volumetric flow rate is gradually reduced.
• V versions: Frost protection due to integrated pre-heating register.

Fans

• Forward curved centrifugal fans in the outgoing air or outside air.
• Energy-efficient EC direct current motors with integrated volumetric flow consistency control.
• Possibility of pressure consistency control via the optional additional circuit board ZP 2.
• 3 ventilation levels from 40 m³/h to 120 m³/h, can be adjusted continuously.

Installation instructions

• Easy, very time-saving installation by screwing the unit directly to the ceiling/wall.
• Housing cover is easy to remove via screws.
• Mains cable is led out of the unit by approx. 2.5 m.
• Cable for connecting the RLS 1 WR control panel is led out of the unit by approx. 2 m.