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Centralised ventilation unit WS 160 Flat BET
Features
Centralised ventilation unit with heat recovery for comfort ventilation.
The WS 160 Flat… range of units is characterised by its compact and very flat design. The
total height of just 23 cm makes space-saving installation possible in suspended ceilings.
The highly efficient enthalpy heat exchanger fitted as standard means there is no need for a
condensate drain. The installer is therefore free to select the unit's position on any ceiling,
wall or inclined surface. Other benefits of the enthalpy heat exchanger with intelligent
humidity control include humidity recovery and the ideal room climate, even in winter.
The housing consists of expanded polypropylene (EPP) with thermal and sound insulation.
The housing's EPP cover is covered with sheet steel for enhanced sound insulation.
The flat units are very quiet, energy-efficient and hold an A-rating label in accordance with
the ErP Directive. The fans with constant volumetric flow cover a volumetric flow range of
40 to 160 m³/h.
The two supply air connections (fitted as standard) allow the supply air lines to be
configured without crossing one another. There is therefore no need for unit variants in lefthand and right-hand versions.
As standard, the unit has an F7 filter in the outside air and a G4 filter in the exhaust air. As
an option, a G4 filter can also be retrofitted in the outside air. This filter cascade greatly
extends the service life of the F7 filter.
The controller is able to control a large number of external components, such as brine
pump, external room heating or shutter for air/earth heat exchanger, and to extend the
scope of the ventilation concept.
KBZET variant: The use of the motorised zone shutter and needs-based zone regulation
allows the supply air rooms to be split into 2 zones. Regulation of the volumetric flows
between the 2 zones can be stored in the time programme or regulated by corresponding
air quality sensors in the zones.
BET, KBET, KBZET variants: The integrated bypass shutter (100 % bypass) with needsbased bypass control makes continuously variable bypass control possible. Depending on
temperature differences and user settings, the room air can be cooled in an optimum
manner without draughts.
KET, KBET, KBZET variants: The performance-controlled electrical preheating register is
regulated depending on various parameters recorded in the unit. The result is an efficient
and energy-saving regulation strategy. Ventilation with a heat register therefore does not
compromise on comfort even at low outside air temperatures.
RLS 1 WR control unit
Included in the scope of delivery.
Switching the 4 ventilation levels, maintenance display, fault messages.
Other control units can be connected in parallel.
Auto Sensor automatic operating mode.
Touch screen control unit RLS T1 WS
Optional.
Up to 6 operating modes possible.
2 automatic operating modes (Auto Sensor / Auto Time).
4 manual operating modes (ECO exhaust air / ECO supply air / MANUAL / OFF).
air@home
The units have an integrated web server.
Can be controlled with an app when at home or out and about, e.g. using a smartphone.
Live reports, user administration, control and setting using web tool. Via tablet, laptop and
PC.
Needs-based automatic mode / Time-controlled automatic mode.
Manual operation / OFF.
ECO mode supply air or ECO mode exhaust air.
Filter queries, error messages.
Registration needed. For more info, see www.air-home.de.
Controller
3 temperature sensors in outside, outgoing and supply air connections.
1 combination sensor (temperature and humidity) in exhaust air connection.
Integrated excess humidity avoidance function.
Continuously variable needs-based adaptation of air volumes.
Multi-function contact for controlling EW brine earth heat exchanger (uncontrolled pump),
operating and fault display, preheating and postheating register, shutters.
Can be extended with other PCBs.
ModBus
Integrated MODBUS interface enables integration in the building control technology.
EnOcean
Optional EnOcean plug-in module for integrating the ventilation unit into "EnOcean world"
www.enocean-alliance.org.
KNX
Optional KNX plug-in module allows for connection to building control technology,
www.knx.org.
Heat exchanger
Washable anti-microbial enthalpy heat exchanger made from plastic (PS).
Frost protection
Prevents the heat exchanger from freezing up at low temperatures.
For "K" unit models, using integrated, demand-controlled, electrical PTC preheating
register.
For "non-K" unit models, by switching off the supply air fan.
Energy-efficient fans
2 centrifugal DC fans, curved to the front. In the outside air or outgoing air.
4 ventilation levels between 40...160 m³/h can be adjusted continuously.
Mounting instructions
Easy, very time-saving installation
Housing cover is easy to remove using guide pin and safety screw.
Provide sound absorbers on the inlet and outlet sides.
Electrical connection
Ready for service.
Prepared for assembly-friendly connection of sensors.
Extendible, functional electronics box allows optional additional circuit boards (ZP 1 and ZP
2) to be fitted with ease.
Condensation drain
Not required.
Technical data
Article:
Number of ventilation levels:
Air flow volume:
Volumetric flow constant:
Energy efficiency class:
Type of voltage:
Rated voltage:
Frequency:
WS 160 Flat BET
4
40 m³/h - 160 m³/h
yes
A
Alternating current
230 V
50 Hz / 60 Hz
SPI value in accordance with DIN
EN 13141-7 (A7):
0,32 Wh/m³
Power consumption in
accordance with DIN EN 13141-7
(A7):
36 W
Imax:
1,1 A
Degree of protection:
IP 00
DIBT approval:
PHI certification:
Installation site:
Applied for
yes
Bathroom / Kitchen / Cellar /
Storage tank / Jamb wall / Utility
System type:
Housing material:
Heat exchanger material:
Inner coating material:
room / Heating room / Hall
Centralised
Plastic EPP/sheet steel
Synthetic material
Plastic EPP
Colour:
black / white aluminium
Weight:
27 kg
Filter class:
Connection diameter:
Connection diameter of
condensation drain:
G4/F7
125 mm / 160 mm
not required
Width:
582 mm
Height:
230 mm
Depth:
1.260 mm
Airstream temperature at IMax:
-20 °C up to 50 °C
Degree of heat provision:
84 %
Max. heat recovery rate in
accordance with DIN EN 13141-7
(A/7):
76 %
Heat exchanger construction
type:
Humidity conditions with enthalpy
heat exchanger in accordance
with DIN EN 13141-7 (A2):
Enthalpy cross-counterflow
53 %
Bypass, integrated:
yes
integrated frost protection:
No
Enthalpy heat exchanger:
yes
Antifreeze circuit:
yes
Summer circuit:
Filter monitoring:
Humidity control:
CO2-control (optional):
Air quality control (optional):
KNX connection (optional):
MODBUS interface:
Control unit included in scope of
delivery.:
Control unit (optional):
EnOcean wireless integration
(optional):
ECO exhaust air / ECO supply air
time-controlled (controlled by
differential pressure as option)
integrated
SKD
EAQ 10/3
K-SM
integrated
RLS 1 WR, App
RLS T1 WS
E-SM
Mobile control:
Housing emission sound
pressure level:
yes
37 dB(A) Spacing 1m, sound
absorption 10 m²
Packing unit:
1 piece
Range:
EAN:
K
4012799950929
Article number:
Manufacturer: MAICO
WS 160 Flat BET Centralised ventilation unit
0095.0092