Centralised ventilation unit

WS 320 BET

Article number: 0095.0225
Manufacturer: MAICO
Centralised, highly-efficient ventilation units with EC fans and constant volumetric flow regulation,... more information
Application examples: Low-energy house, Living room
WS 320 BET IM0015750.PNG Centralised, highly-efficient ventilation units with EC fans and constant volumetric flow regulation, including bypass and enthalpy cross-counterflow exchanger, supply and exhaust air on left, air volume 80 - 320 m³/h, connection diameter 4 x DN 160, 4 SVR 160 plug connectors or 90° B90-160 elbow needed to connect folded spiral-seams ducts (order as accessories), including RLS 1 WR control unit, including integrated web server and MAICO app (air@home) for mobile unit control, live reports via web tool, DIBT approval and passive house certificate, KNX and EnOcean connection possible
WS 320 BET IM0014531.PNG Centralised, highly-efficient ventilation units with EC fans and constant volumetric flow regulation, including bypass and enthalpy cross-counterflow exchanger, supply and exhaust air on left, air volume 80 - 320 m³/h, connection diameter 4 x DN 160, 4 SVR 160 plug connectors or 90° B90-160 elbow needed to connect folded spiral-seams ducts (order as accessories), including RLS 1 WR control unit, including integrated web server and MAICO app (air@home) for mobile unit control, live reports via web tool, DIBT approval and passive house certificate, KNX and EnOcean connection possible
WS 320 BET IM0016031.PNG Centralised, highly-efficient ventilation units with EC fans and constant volumetric flow regulation, including bypass and enthalpy cross-counterflow exchanger, supply and exhaust air on left, air volume 80 - 320 m³/h, connection diameter 4 x DN 160, 4 SVR 160 plug connectors or 90° B90-160 elbow needed to connect folded spiral-seams ducts (order as accessories), including RLS 1 WR control unit, including integrated web server and MAICO app (air@home) for mobile unit control, live reports via web tool, DIBT approval and passive house certificate, KNX and EnOcean connection possible
WS 320 BET IM0013942.PNG Centralised, highly-efficient ventilation units with EC fans and constant volumetric flow regulation, including bypass and enthalpy cross-counterflow exchanger, supply and exhaust air on left, air volume 80 - 320 m³/h, connection diameter 4 x DN 160, 4 SVR 160 plug connectors or 90° B90-160 elbow needed to connect folded spiral-seams ducts (order as accessories), including RLS 1 WR control unit, including integrated web server and MAICO app (air@home) for mobile unit control, live reports via web tool, DIBT approval and passive house certificate, KNX and EnOcean connection possible
WS 320 BET IM0007254.PNG Centralised, highly-efficient ventilation units with EC fans and constant volumetric flow regulation, including bypass and enthalpy cross-counterflow exchanger, supply and exhaust air on left, air volume 80 - 320 m³/h, connection diameter 4 x DN 160, 4 SVR 160 plug connectors or 90° B90-160 elbow needed to connect folded spiral-seams ducts (order as accessories), including RLS 1 WR control unit, including integrated web server and MAICO app (air@home) for mobile unit control, live reports via web tool, DIBT approval and passive house certificate, KNX and EnOcean connection possible
WS 320 BET IM0013704.PNG Centralised, highly-efficient ventilation units with EC fans and constant volumetric flow regulation, including bypass and enthalpy cross-counterflow exchanger, supply and exhaust air on left, air volume 80 - 320 m³/h, connection diameter 4 x DN 160, 4 SVR 160 plug connectors or 90° B90-160 elbow needed to connect folded spiral-seams ducts (order as accessories), including RLS 1 WR control unit, including integrated web server and MAICO app (air@home) for mobile unit control, live reports via web tool, DIBT approval and passive house certificate, KNX and EnOcean connection possible
WS 320 BET IM0016004.PNG Centralised, highly-efficient ventilation units with EC fans and constant volumetric flow regulation, including bypass and enthalpy cross-counterflow exchanger, supply and exhaust air on left, air volume 80 - 320 m³/h, connection diameter 4 x DN 160, 4 SVR 160 plug connectors or 90° B90-160 elbow needed to connect folded spiral-seams ducts (order as accessories), including RLS 1 WR control unit, including integrated web server and MAICO app (air@home) for mobile unit control, live reports via web tool, DIBT approval and passive house certificate, KNX and EnOcean connection possible

Characteristic curve

WS 320 BET - Characteristic curve

The figures shown indicate the preset ventilation levels ("factory settings").

1 = 120 m³/h, reduced ventilation (RV)

2 = 180 m³/h, nominal ventilation (NV)

3 = 240 m³/h, intensive ventilation (IV)

I = Interval or "humidity protection operation" depending on RV

Individual settings available:

RV = 80 m³/h - 320 m³/h

NV = 80 m³/h - 320 m³/h

IV = 80 m³/h - 320 m³/h

Essential condition: RV < NV < IV !

Dimensioned drawing

WS 320 BET - Dimensioned drawing [mm]

  1. DN 160 supply air
  2. DN 160 exhaust air
  3. DN 160 outside air
  4. DN 160 outgoing air
  5. Unit switches / electric connections
  6. Condensation drain
  7. for DN 160 plug connector

Technical data

WS 320 BET - Technical data

Article WS 320 BET
Air flow volume 80 m³/h - 320 m³/h
SEC average -40,2 kWh/(m²*a)
Energy efficiency class A
Type of voltage Alternating current
Rated voltage 230 V
Frequency 50 Hz/60 Hz
SPI value in accordance with DIN EN 13141-7 (A7) 0,17 Wh/m³
Power consumption in accordance with DIN EN 13141-7 (A7) 36 W
Stand-by power consumption < 1 W
Imax 1,5 A
Degree of protection IP 40
DIBT approval yes
PHI certification yes
System type Centralised
Housing material Sheet steel, powder coated
Heat exchanger material Synthetic material
Inner coating material Plastic EPP
Colour white aluminium, similar to RAL 9006
Weight 73 kg
Filter class G4/F7
Connection diameter 160 mm
Connection diameter of condensation drain 1 1/2" (screen valve)
Width 841 mm
Height 857 mm
Depth 598 mm
Airstream temperature at IMax -20 °C up to 40 °C
Max. degree of heat provision in accordance with DIN EN 13141-7 (A7) 93 %
Heat exchanger construction type Enthalpy cross-counterflow
Humidity conditions with enthalpy heat exchanger in accordance with DIN EN 13141-7 (A2) 70 %
Bypass yes
Frost protection No
Enthalpy heat exchanger yes
Antifreeze circuit yes
Summer circuit ECO exhaust air / ECO supply air
Filter monitoring with time control
Humidity control integrated
CO2-control (optional) SKD
Air quality control (optional) EAQ 10/3
KNX connection (optional) K-SM
MODBUS interface integrated
Control unit included in scope of delivery. RLS 1 WR, App
Control unit (optional) RLS T1 WS
EnOcean wireless integration (optional) E-SM
Mobile control yes
Housing emission sound pressure level 36 dB(A) / Spacing 1m, sound absorption 10 m²
Packing unit 1 piece
Range K
GTIN (EAN) 4012799952251
Article number 0095.0225

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA2 (dB(A))

19

29

39

40

38

30

20

20

44

LWA5 (dB(A))

35

35

34

33

37

28

15

15

42

LWA6 (dB(A))

40

44

46

45

46

29

19

16

52

LWA2= housing sound power level in dB.

LWA5= free inlet sound power level in dB.

LWA6= free outlet sound power level in dB.

LWA5, LWA6 = sound power level emitted to the free surroundings. Measured at a subsequent operating point on the connections facing the room. LWA5 Exhaust air connections, LWA6 Supply air connections.

Operating point: Reference volumetric flow 210 m³/h and external pressure 50 Pa

Accessories

WS 320 BET - Accessories

Specific accessories

Product type Name Art. No. Price*(EUR) Action
Radio switch DS RC 0157.0832 on request
  • On the notes
Plug connectors for ducts SVR 160 0055.0185 on request
  • On the notes
90° elbow, drawn B90-160 0055.0314 on request
  • On the notes
Assembly feet WS-MF 320/470 0092.0558 on request
  • On the notes
Siphon WS-SI 320/470 0092.0564 on request
  • On the notes
Ball siphon WS-KSI 320/470 0092.0572 on request
  • On the notes
PREHEATING REGISTER WS-VH 320/470 0093.1266 on request
  • On the notes
Air filter, replacement WSF 320/470 0092.0559 on request
  • On the notes
Air filter, replacement WSF-AKF 320/470 0092.0563 on request
  • On the notes
Air filter, replacement WSG 320/470 0092.0560 on request
  • On the notes
Replacement filter mat WSG-EG 320/470 0092.0562 on request
  • On the notes
Push-in frame for air filter WSG-ES 320/470 0092.0561 on request
  • On the notes
Room air control RLS 1 WR 0157.0809 on request
  • On the notes
Room air control RLS T1 WS 0157.0835 on request
  • On the notes
harmful gas sensor SGS New development 0093.1323 on request
  • On the notes
Enocean plug-in module E-SM 0092.0556 on request
  • On the notes
KNX plug-in module K-SM 0092.0557 on request
  • On the notes
Additional circuit board ZP 1 0092.0554 on request
  • On the notes
Additional circuit board ZP 2 0092.0555 on request
  • On the notes

General accessories

Product type Name Art. No. Price*(EUR) Action
Brine earth heat exchanger EW brine earth heat exchanger - - -
MAICOTherm ventilation duct system, thermally insulated MAICOTherm MT thermally-insulated ventilation duct system - - -
MAICOFlex ventilation duct system, round Flexible round MAICOFlex MF ventilation duct system - - -
MAICO FFS ventilation duct system, flat MAICO FFS flexible flat ventilation duct system - - -
MAICOFlex ventilation duct system, round Flexible round MAICOFlex ventilation duct system - - -
Shutter AS 20 0151.0330 on request
  • On the notes
External grille MGR 160 alu 0078.0036 on request
  • On the notes
Stainless steel cowl LH-V2A 16 0151.0380 on request
  • On the notes
Outside air wall connection KW-AL 16E 0152.0077 on request
  • On the notes
Outside air wall connection KW-AL 16W 0152.0078 on request
  • On the notes
Outside air wall connection KW-AL 20E 0152.0081 on request
  • On the notes
Outside air wall connection KW-AL 20W 0152.0082 on request
  • On the notes
Outgoing air wall connection KW-FL 16E 0152.0079 on request
  • On the notes
Outgoing air wall connection KW-FL 16W 0152.0080 on request
  • On the notes
Outgoing air wall connection KW-FL 20E 0152.0083 on request
  • On the notes
Outgoing air wall connection KW-FL 20W 0152.0084 on request
  • On the notes
Combi-wall connections KWH 16 L 0152.0061 on request
  • On the notes
Combi-wall connections KWH 16 R 0152.0060 on request
  • On the notes
Combi-wall connections KWH 20 L 0152.0063 on request
  • On the notes
Combi-wall connections KWH 20 R 0152.0062 on request
  • On the notes
Roof outlet DF 160 S 0092.0375 on request
  • On the notes
Roofing tile DP 160 SB 0092.0380 on request
  • On the notes
Roofing tile DP 160 A 0092.0383 on request
  • On the notes
Mounting clamp BS 160 0092.0360 on request
  • On the notes
Rain protection grille RG 160 0151.0281 on request
  • On the notes
Door ventilation grille MLK 30 white 0151.0123 on request
  • On the notes
Door ventilation grille MLK 45 white 0151.0126 on request
  • On the notes
Exhaust and supply air valve AZV 100 0152.0087 on request
  • On the notes
Disk valve, synthetic material TK 10 0151.0192 on request
  • On the notes
Disk valve, synthetic material TK 12 0151.0198 on request
  • On the notes
Disk valve, metal TM 10 0151.0194 on request
  • On the notes
Disk valve, metal TM 12 0151.0196 on request
  • On the notes
Disk valve, stainless steel TM-V2A 10 0151.0374 on request
  • On the notes
Disk valve, stainless steel TM-V2A 12 0151.0375 on request
  • On the notes
Disk valve, metal TFA 10 0151.0369 on request
  • On the notes
Disk valve, metal TFA 12 0151.0370 on request
  • On the notes
Disk valve, metal TFZ 10 0151.0364 on request
  • On the notes
Disk valve, metal TFZ 12 0151.0365 on request
  • On the notes
Mounting frame for TFA/TFZ EBR-D 10 0092.0493 on request
  • On the notes
Mounting frame for TFA/TFZ EBR-D 12 0092.0494 on request
  • On the notes
Blower nozzle WD 10 W 0151.0290 on request
  • On the notes
Blower nozzle WD 10 D 0151.0291 on request
  • On the notes
Supply air valve ZWVQ 10 0152.0064 on request
  • On the notes
Supply air valve ZWVQ 12 0152.0065 on request
  • On the notes
Grease filter element for exhaust air FFE 10 0092.0506 on request
  • On the notes
Thermally insulated long pipe elbow ABLS 160 0058.0048 on request
  • On the notes
Sound absorber box SB 12/16 0059.0995 on request
  • On the notes
Tubular sound absorber RSR 10 0092.0311 on request
  • On the notes
Tubular sound absorber RSR 12 0092.0312 on request
  • On the notes
Tubular sound absorber RSR 16 0092.0314 on request
  • On the notes
Tubular sound absorber RSR 16/50 0092.0324 on request
  • On the notes
Slide-in sound absorber SDE 8 0044.0213 on request
  • On the notes
Slide-in sound absorber SDE 10 0044.0214 on request
  • On the notes
Slide-in sound absorber SDE 12 0044.0215 on request
  • On the notes
Electrical air heater ERH 16-2 0082.0102 on request
  • On the notes
Water air heater WRH 16-2 0082.0118 on request
  • On the notes
Air filter TFE 16-4 0149.0077 on request
  • On the notes
Air filter TFE 16-5 0149.0061 on request
  • On the notes
Air filter TFE 16-7 0149.0052 on request
  • On the notes
Radio switch XS 1 0157.0344 on request
  • On the notes
Radio receiver XE 1 0157.0343 on request
  • On the notes
Thermostat TH 10 0157.0764 on request
  • On the notes
Temperature control system ETL 16 P Discontinued product 0157.0824 on request
  • On the notes
Channel sensor FL 30 P 0157.0780 on request
  • On the notes
Room sensor FR 30 P 0157.0781 on request
  • On the notes
Air flow monitor LW 9 0157.0779 on request
  • On the notes
Humidity and temperature sensor FFT 30 K 0157.0121 on request
  • On the notes
CO2 sensor SKD 0157.0345 on request
  • On the notes
Air quality controller EAQ 10/3 0157.0829 on request
  • On the notes
Internal grille, adjustable AZE 100 No longer available for delivery 0059.0959 on request
  • On the notes
Internal grille, adjustable AZE 100 P No longer available for delivery 0059.0962 on request
  • On the notes

Product description

Productdescription

WS 320 BET

short description

Centralised, highly-efficient ventilation units with EC fans and constant volumetric flow regulation, including bypass and enthalpy cross-counterflow exchanger, supply and exhaust air on left, air volume 80 - 320 m³/h, connection diameter 4 x DN 160, 4 SVR 160 plug connectors or 90° B90-160 elbow needed to connect folded spiral-seams ducts (order as accessories), including RLS 1 WR control unit, including integrated web server and MAICO app (air@home) for mobile unit control, live reports via web tool, DIBT approval and passive house certificate, KNX and EnOcean connection possible

Product description

Features

  • Highly efficient, intelligent, centralised ventilation unit with heat recovery for comfort ventilation.
  • Compact and very quiet unit for wall / standalone mounting (optional).
  • An easily accessible USB port for service/start-up characterises all unit variants.
  • DC motors with integrated, automatic volumetric flow regulation for constant air volume ("volumetric flow consistency").
  • The DC motors can be operated via the optional additional "pressure constant" PCB ZP 2.
  • Good customer service/ease of use thanks to modern unit module technology.
  • Good flexibility thanks to various equipment and connection options.
  • Housing: Sheet steel, powder coated.
  • Colour: white aluminium.
  • Inner cladding made from temperature-resistant and extremely noise- and heat-insulating plastic (EPP). The material is also characterised by its hygienic and non-hygroscopic properties. Tested by the Institut für Lufthygiene Berlin [Berlin Institute for Air Hygiene] according to VDI 6022 Part 1.
  • Additional noise-insulating cladding in the supply air guide.
  • Maximum air tightness.
  • Simple filter change is possible without tools.
  • 4 DN 160 duct connections.
  • Can be equipped with plug-in connectors or duct bend (accessories).
  • All unit variants (e.g. "K") can also be converted into other unit variants (e.g. "KET") later on using optional components.
  • DIBT approval.
  • PH certification.

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.

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 and 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.
  • Settings:
    • 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 (e.g. ZP 1, ZP 2).

ModBus

  • Integrated MODBUS interface enables integration in the building control technology.

EnOcean

  • Optional EnOcean plug-in module E-SM for integrating the ventilation unit into "EnOcean world" "www.enocean-alliance.org"

KNX

  • Optional KNX plug-in module K-SM allows for connection to building control technology, "www.knx.org".

Heat exchanger

  • Highly-efficient cross-counterflow plate heat exchanger made of plastic material (PS), and/or for the “ET” unit variants, washable, anti-microbial enthalpy heat exchanger made of 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.
  • Recommendation: For "non-K" unit models, combine with heat recovery with a brine earth heat exchanger.

Energy-efficient fans

  • 2 radial direct current fans, curved to the front in the supply air / outgoing air.
  • 4 ventilation levels can be adjusted continuously between 80.. 320 m³/h.

Mounting instructions

  • Easy, very time-saving mounting with the wall bracket included in the scope of delivery.
  • Housing cover is easy to remove using practical magnetic locks.
  • Provide sound absorbers on the inlet and outlet sides.

Electrical connection

  • Ready for service with on/off switch.
  • 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

  • Condensation drain (1 1/2" screen valve).
  • Connection to an optional siphon (DN40).
  • Easy-clean condensate tank integrated in EPP housing.

Table of contents

Wiring diagram

WS 320 BET - Wiring diagram

A - Ventilation unit WR 310/410, WS 320/470

A1 - Electronic slide-in module

A2 - Controlled domestic ventilation unit control

B - Simple control unit RLS 1 WR

B2-B5 - Parallel connection max. 5 RLS 1 WR

BT1 - RLS T1 WS touchscreen control unit

W1 - 230 V AC connecting cable

W2 - Screened control cable for simple control unit (provided by customer), e.g. LIYY 6 x 0.34 mm²

W2 - Screened control cable RLS T1 WS (provided by customer), e.g. LIYY 4 x 0.34 mm²

W5 - Connecting cable for PTC heat register

W6 Connecting cable (provided by customer) for multi-function contact (potential-free relay contact 230 VAC/5A or 30 VDC/5A). Multi-function contact for connecting one of the following components: Alarm display, filter change message, operating display, supplementary heating, pre-heating, shutter, brine EHE (uncontrolled pump), cooling.

W7 - Connecting cable for bypass motor

S1 - Unit switch

M1 - Exhaust air/outgoing air fan

M2 - Outside air/supply air fan

M3 - Bypass motor

T-LET - Temperature sensor for air inlet for outside air

T-FOL - Temperature sensor for outgoing air

T-ZUL - Temperature sensor for supply air

S-ABL - Combination sensor for exhaust air



Predecessor - successor

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