short description

Product description

Standard model, right-hand

• Central ventilation unit with two enthalpy heat exchangers.
• Supply and exhaust air on right (in ceiling installation position, view of the electronics compartment).
• Summer switching function via eco mode: ECO supply air, ECO exhaust air for passive summer night cooling.

Brief description

• Intelligent ventilation unit with heat and humidity recovery for controlled ventilation and air extraction with an air volume of 80 to 300 m³/h.
• 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. Hygiene certificate according to VDI 6022, sheet 1 available.
• Compact and highly efficient – energy efficiency class A. Sound and energy-optimised fans in EC technology.
• KfW and NRW subsidies are available.
• High volumetric flow with extremely low installation height of 30 cm and quiet operation. Installation possibilities: Flexibly on the ceiling, wall or in a sloped roof.
• No pressure fluctuation sensitivity: The integrated/automatic constant volumetric flow 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.
• Various operating modes: Off, Manual, Auto Sensor, ECO exhaust air, ECO supply air.
• RLS 1 WR room air control system included in the scope of delivery.
• ISO Coarse 80 % (G4) filter in the exhaust air and ISO ePM1 60 % (F7) pollen filter in the outside air.
• The ventilation unit is equipped with two state-of-the-art enthalpy heat exchangers with hygiene certificate according to VDI 6022, sheet 1.
• The WS 300 Flat 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 system update and service.
• Combination 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, external 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.
• 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 “pressure constancy control” of the EC fans, zone shutter, 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.

Housing

• Powder-coated sheet steel housing, colour: traffic white, similar to RAL 9016.
• Simple filter change is possible without tools.
• Tight, thermal bridge-free, and sound-insulated inner housing made of temperature-resistant, sound-absorbing and heat-insulating EPP material.
• EPP housing with very good hygienic/non-hygroscopic properties.
• Unit surface and unit’s inner housing are easy to clean.

Filter:

• ISO Coarse 80 % (G4) filter in the exhaust air and ISO ePM1 60 % (F7) pollen filter in the outside air.
• Filter change without tools.

Operation

• Ready for service with on/off switch.
• RLS 1 WR control panel included in the scope of delivery, 4 air levels, filter change indicator, fault display.
• Other control panels 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,
• Demand-driven automatic operation / time-controlled automatic operation,
• Manual operation / OFF,
• ECO mode supply air or ECO mode exhaust air,
• Filter queries, error messages.
• Optional RLS T2 WS touchscreen control panel 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 300 Flat 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 system, www.knx.org.
• Optional EnOcean plug-in module E-SM for integrating the unit into the “EnOcean world”, www.enocean-alliance.org.

Control system

• 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 combination 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 display, preheating or supplementary heat register, external 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),
• of 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

• DiBt approval.
• Test report in accordance with DIN EN 13141-7.
• Hygiene certificates for housing material (EPP) and heat exchanger.
• Entry in TZWL Bulletin.

Heat exchanger/heat recovery

• Two highly efficient enthalpy cross-counterflow heat exchangers.
• Heat recovery up to 91 % and humidity recovery up to 82 %.
• 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.

Summer switching

• 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.

Fans

• Forward curved centrifugal fans in the outgoing air or supply 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.
• 4 ventilation levels from 80 m³/h to 300 m³/h, can be adjusted continuously.

Installation information

• Easy, very time-saving installation by screwing the unit directly to the ceiling/wall.
• Housing cover is easy to remove via screws.