Centralised ventilation unit

WS 170 KL

Article number: 0095.0282
Manufacturer: MAICO
Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors... more information
Application examples: Low-energy house, Single-family house, Passive energy house, Living room, Office
Product data sheet
WS 170 KL IM0014394.PNG Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, supply and exhaust air on the left, 4 x DN 125, including frost protection heating and RLS 1 WR control unit and mobile control by app, DIBT and passive house approval, 40 - 160 m³/h, 23 - 46 m³/h in interval mode, KNX connection possible, 4 x SVR 125 plug connector or 90° B90-125 elbow needed to connect folded spiral-seams ducts (order as accessories)
WS 170 KL IM0019630.PNG Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, supply and exhaust air on the left, 4 x DN 125, including frost protection heating and RLS 1 WR control unit and mobile control by app, DIBT and passive house approval, 40 - 160 m³/h, 23 - 46 m³/h in interval mode, KNX connection possible, 4 x SVR 125 plug connector or 90° B90-125 elbow needed to connect folded spiral-seams ducts (order as accessories)
WS 170 KL IM0020225.PNG Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, supply and exhaust air on the left, 4 x DN 125, including frost protection heating and RLS 1 WR control unit and mobile control by app, DIBT and passive house approval, 40 - 160 m³/h, 23 - 46 m³/h in interval mode, KNX connection possible, 4 x SVR 125 plug connector or 90° B90-125 elbow needed to connect folded spiral-seams ducts (order as accessories)
WS 170 KL IM0019952.PNG Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, supply and exhaust air on the left, 4 x DN 125, including frost protection heating and RLS 1 WR control unit and mobile control by app, DIBT and passive house approval, 40 - 160 m³/h, 23 - 46 m³/h in interval mode, KNX connection possible, 4 x SVR 125 plug connector or 90° B90-125 elbow needed to connect folded spiral-seams ducts (order as accessories)
WS 170 KL IM0016031.PNG Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, supply and exhaust air on the left, 4 x DN 125, including frost protection heating and RLS 1 WR control unit and mobile control by app, DIBT and passive house approval, 40 - 160 m³/h, 23 - 46 m³/h in interval mode, KNX connection possible, 4 x SVR 125 plug connector or 90° B90-125 elbow needed to connect folded spiral-seams ducts (order as accessories)
WS 170 KL IM0013942.PNG Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, supply and exhaust air on the left, 4 x DN 125, including frost protection heating and RLS 1 WR control unit and mobile control by app, DIBT and passive house approval, 40 - 160 m³/h, 23 - 46 m³/h in interval mode, KNX connection possible, 4 x SVR 125 plug connector or 90° B90-125 elbow needed to connect folded spiral-seams ducts (order as accessories)
WS 170 KL IM0007254.PNG Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, supply and exhaust air on the left, 4 x DN 125, including frost protection heating and RLS 1 WR control unit and mobile control by app, DIBT and passive house approval, 40 - 160 m³/h, 23 - 46 m³/h in interval mode, KNX connection possible, 4 x SVR 125 plug connector or 90° B90-125 elbow needed to connect folded spiral-seams ducts (order as accessories)
WS 170 KL IM0016004.PNG Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, supply and exhaust air on the left, 4 x DN 125, including frost protection heating and RLS 1 WR control unit and mobile control by app, DIBT and passive house approval, 40 - 160 m³/h, 23 - 46 m³/h in interval mode, KNX connection possible, 4 x SVR 125 plug connector or 90° B90-125 elbow needed to connect folded spiral-seams ducts (order as accessories)

Characteristic curve

WS 170 KL - Characteristic curve

I - Interval / vacation operation for humidity protection

  1. Reduced ventilation
  2. Nominal ventilation
  3. Intensive / Party operation
  4. Recommended setting range

Dimensioned drawing

WS 170 KL - Dimensioned drawing [mm]

  1. DN 125 outgoing air
  2. DN 125 outside air
  3. DN 125 exhaust air
  4. DN 125 supply air
  5. Cable screw-connection
  6. Main switch
  7. Condensation connection

Technical data

WS 170 KL - Technical data

Article WS 170 KL
Model Comfort model, left
Number of ventilation levels 4
Air flow volume 40 m³/h - 160 m³/h
Volumetric flow constant yes
SEC average -38,6 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) 0,32 Wh/m³
Power consumption 21 W - 80 W / At 100 Pa counter pressure
Power consumption in accordance with DIN EN 13141-7 (A7) 35 W
Stand-by power consumption < 1 W
Imax 0,5 A / With active 4 A frost protection heating
Degree of protection IP 00
DIBT approval yes
PHI certification yes
Installation site Wall
Installation site Bathroom / Kitchen / Cellar / Storage tank / Jamb wall / Utility room / Heating room / Hall
System type Centralised
Housing material Galvanised sheet steel, powder coated
Heat exchanger material Synthetic material
Inner coating material Plastic EPP
Colour Traffic white (RAL 9016)
Weight 37,14 kg
Weight including packaging 41,83 kg
Filter class ISO Coarse 80 % (G4) / ISO ePM1 55 % (F7)
Connection diameter 125 mm
Connection diameter of condensation drain 3/4" hose connection or drain pipe with a diameter of 28 mm
Width 375 mm
Height 820 mm
Depth 595 mm
Width with packaging 400 mm
Height with packaging 990 mm
Depth with packaging 640 mm
Airstream temperature at IMax -20 °C up to 60 °C
Ambient temperature 10 °C up to 40 °C
Max. degree of heat provision in accordance with DIN EN 13141-7 (A7) 95 %
Heat exchanger construction type Cross-counterflow
Power of preheating register 0,74 kW
Position – exhaust air left
Bypass No
Frost protection integrated
Enthalpy heat exchanger No
Antifreeze circuit yes
Summer circuit Exhaust air / supply air
Filter monitoring with time control
Humidity control integrated
CO2 regulation (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 T2 WS, RLS G1 WS
EnOcean wireless integration (optional) E-SM
Mobile control yes
Housing emission sound pressure level 32 dB(A) / 34 dB(A) / 35 dB(A) / Spacing 1m, sound absorption 10 m²
Packing unit 1 piece
Range K
GTIN (EAN) 4012799952824
Article number 0095.0282

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA2, Step 1 (dB(A))

23

29

28

28

26

20

14

4

34

LWA5, Step 1 (dB(A))

25

36

34

34

38

30

18

5

43

LWA6, Step 1 (dB(A))

25

36

37

35

42

32

20

6

45

LWA2, Level 2 (dB(A))

27

28

29

29

28

21

15

3

36

LWA5, Level 2 (dB(A))

26

36

36

36

41

32

19

4

44

LWA6, Level 2 (dB(A))

26

37

39

37

44

35

23

8

46

LWA2, Level 3 (dB(A))

22

29

32

31

30

23

17

4

37

LWA5, Level 3 (dB(A))

18

35

37

37

44

37

22

8

46

LWA6, Level 3 (dB(A))

23

36

40

39

47

40

25

11

49

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, level 1: Air volume 70 m³/h and external pressure 100 Pa

Operating point, level 2: Air volume 100 m³/h and external pressure 100 Pa

Operating point, level 3: Air volume 130 m³/h and external pressure 100 Pa

In accordance with DIN 45635, Part 38, April 1986.

Accessories

WS 170 KL - Accessories

Specific accessories

General accessories

Product type Name Art. No. Price*(EUR) Action
MAICOFlex ventilation duct system, round MAICOFlex MF flexible, round ventilation duct system - - -
MAICOAir ventilation duct system, round Flexible, round MAICOAir MA ventilation duct system - - -
MAICOTherm ventilation duct system, thermally insulated MAICOTherm MT thermally insulated ventilation duct system - - -
MAICOFlex ventilation duct system, round MAICOFlex flexible, round ventilation duct system - - -
MAICO FFS ventilation duct system, flat MAICO FFS flexible flat ventilation duct system - - -
Stainless steel cowl LH-V2A 12 0151.0378 on request
  • On the notes
Outside air wall connection KW-AL 12E 0152.0073 on request
  • On the notes
Outside air wall connection KW-AL 12W 0152.0074 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
Outgoing air wall connection KW-FL 12E 0152.0075 on request
  • On the notes
Outgoing air wall connection KW-FL 12W 0152.0076 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
Combi-wall connections KWH 12 L 0152.0059 on request
  • On the notes
Combi-wall connections KWH 12 R 0152.0058 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
Roof outlet DF 125 T 0092.0373 on request
  • On the notes
Roof outlet DF 125 S 0092.0374 on request
  • On the notes
Roofing tile DP 125 TB 0092.0378 on request
  • On the notes
Roofing tile DP 125 SB 0092.0379 on request
  • On the notes
Roofing tile DP 125 A 0092.0382 on request
  • On the notes
Mounting clamp BS 125 0092.0359 on request
  • On the notes
Rain protection grille RG 125 0151.0280 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, 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
Volumetric flow controller VSB 125 0093.0110 on request
  • On the notes
Sound absorber box SB 12/16 0059.0995 on request
  • On the notes
Tubular sound absorber RSR 12 Remaining parts 0092.0312 on request
  • On the notes
Tubular sound absorber RSR 12-1 0092.0593 on request
  • On the notes
Tubular sound absorber RSR 12/50-1 0092.0601 on request
  • On the notes
Flat oval duct sound absorber RSOF 12/50 0092.0531 on request
  • On the notes
Flat oval duct sound absorber RSOF 12/100 0092.0534 on request
  • On the notes
Combination sound-insulation distributor KSDV 2-125/12-75 New development 0092.0586 on request
  • On the notes
Sound-insulation distributor SDV 125/6-75 New development 0092.0609 on request
  • On the notes
Electrical air heater ERH 12-1 0082.0101 on request
  • On the notes
Water air heater WRH 12-1 0082.0117 on request
  • On the notes
Air filter TFE 12-4 0149.0075 on request
  • On the notes
Air filter TFE 12-7 0149.0050 on request
  • On the notes
Thermostat TH 10 0157.0764 on request
  • On the notes
Temperature control system DTL 16 P 0157.0825 on request
  • On the notes
Temperature control system DTL 24 P 0157.0586 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
CO2 sensor SKD 0157.0345 on request
  • On the notes
Air quality controller EAQ 10/3 Discontinued product 0157.0829 on request
  • On the notes
Tubular sound absorber RSR 12/50 No longer available for delivery 0092.0322 on request
  • On the notes
Air filter TFE 12-5 No longer available for delivery 0149.0059 on request
  • On the notes
Radio switch XS 1 No longer available for delivery 0157.0344 on request
  • On the notes
Radio receiver XE 1 No longer available for delivery 0157.0343 on request
  • On the notes
Brine-air heat exchanger EW-K 225 No longer available for delivery 0192.0520 on request
  • On the notes
Roofing tile DP 125 TF No longer available for delivery 0092.0376 on request
  • On the notes
Roofing tile DP 125 SF No longer available for delivery 0092.0377 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
Temperature control system ETL 16 P No longer available for delivery 0157.0824 on request
  • On the notes

Product description

Productdescription

WS 170 KL

short description

Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, supply and exhaust air on the left, 4 x DN 125, including frost protection heating and RLS 1 WR control unit and mobile control by app, DIBT and passive house approval, 40 - 160 m³/h, 23 - 46 m³/h in interval mode, KNX connection possible, 4 x SVR 125 plug connector or 90° B90-125 elbow needed to connect folded spiral-seams ducts (order as accessories)

Product description

Comfort model

  • Comfort model with preheating register, sound-optimised housing, with additional insulation and cross-counterflow heat exchanger.
  • Unit in left-hand version.
  • ISO Coarse 80 % (G4) filter in the exhaust air and ISO ePM1 55 % (F7) pollen filter in the outside air.

Brief description

  • Central, compact, very quiet domestic ventilation unit with heat recovery.
  • For controlled ventilation and air extraction.
  • Highly efficient ventilation unit achieves energy efficiency class A.
  • Especially suitable for modern new buildings or redevelopments (e.g. flats).
  • The narrow ventilation unit (width: 59.5 cm) is also particularly predestined for kitchen installation.
  • KfW and NRW subsidies are available.
  • Easy, very time-saving installation with the wall bracket included in the scope of delivery.
  • A filter cascade (ISO Coarse 80 % (G4) / ISO ePM1 55 % (F7)) in the outside air is possible to increase the filter service life.
  • All units are equipped with state-of-the-art cross-counterflow heat exchangers or enthalpy heat exchangers with hygiene certificates according to VDI 6022, sheet 1.
  • 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 system included in the scope of delivery.
  • All domestic ventilation units can be controlled via the APP (air@home) and the browser-based web tool (www.air-home.de) using an integrated LAN interface.
  • USB connection as a standard feature for commissioning, control system update and service.
  • All units are equipped with highly energy-efficient fans with EC technology.
  • 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.
  • Combination sensor (humidity/temperature) integrated as standard in the exhaust air enables demand-driven ventilation operation as well as an intelligent frost protection and dehumidification strategy (excess humidity protection).
  • All units are characterized by a frost protection strategy adapted to the real demand.
  • 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 allows easy retrofitting (e.g. pre-heating, bypass) as well as high user-friendliness for service and maintenance.

Housing

  • Powder-coated sheet steel housing.
  • Colour: traffic white, similar to RAL 9016.
  • Sound-optimised housing with additional insulation for units with bypass “B”.
  • Simple filter change is possible without tools.
  • Housing lid can be folded up using quick-release locks.
  • Tight, thermal bridge-free inner housing made of temperature-resistant, sound-absorbing and heat-insulating EPP material (average wall thickness 42 mm).
  • EPP housing with very good hygienic/non-hygroscopic properties.
  • Material checked by the Institute for Air Hygiene in accordance with VDI 6022.
  • Condensate tank integrated in EPP housing.
  • Unit surface and unit’s inner housing are easy to clean.
  • Condensate drain (3/4" hose connection or drain pipe with a diameter of 28 mm) at the bottom of the unit.
  • Connection to a siphon.

Filter:

  • The WS 170 R/L and WS 170 RET/LET units use ISO Coarse 80 % (G4) filters in the exhaust air and outside air.
  • For the WS 170 KR/KL, WS 170 KRET/KLET, WS 170 KBR/KBL, WS 170 KBRET/KBLET units ISO Coarse 80% (G4) filter in the exhaust air and ISO ePM1 55 % filter (F7) pollen filter in the outside air.
  • Optional filter cascade (ISO Coarse 80 % (G4) / ISO ePM1 55 % (F7)) in the outside air possible to increase the filter service life.
  • Filter exchange 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 heat recovery units 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.
  • 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: all WS 170 units (exception: WS 170 .. ET variants).
  • PHI certificate: WS 170 KR, WS 170 KL, WS 170 KBR; WS 170 KBL.
  • Test report in accordance with DIN EN 13141-7.
  • Certificate according to Swiss “energie-cluster.ch”.
  • Hygiene certificates for housing material (EPP) and heat exchanger.
  • Entry in TZWL Bulletin.

Heat exchanger/heat recovery

  • Highly efficient cross-counterflow heat exchanger made of plastic (PS).
  • Heat recovery up to 95 %.
  • Humidity recovery up to 66 % (for ET units).
  • Hygiene certificate (no bacteria, virus growth/virus transfer) according to VDI 6022, sheet 1.
  • Heat exchanger can be cleaned with water, antimicrobial.
  • Units with enthalpy heat exchangers do not require a condensation connection.

Bypass

  • Included in the “B” unit variants.
  • Patented automatic 100% bypass for passive summer night cooling with adjustable minimum supply air temperature limit.

Frost protection

  • Prevention of the heat exchanger freezing at low temperatures.
  • Highly energy-efficient frost protection function for “K” unit models via demand-controlled, power-modulated, electric PTC preheating register.
  • For “non-K” unit models via supply air fan switch-off.
  • Recommendation: For “non-K” unit models, combine the heat recovery with a brine heat exchanger.

Fans

  • Forward curved centrifugal fans in the outside air or outgoing 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 40 m³/h to 160 m³/h, can be adjusted continuously.

Installation information

  • Easy, very time-saving installation 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 supply air and exhaust air sides.
  • Comments: All unit variants (e.g. "K") can be converted into other unit variants (e.g. "KRET") later on using optional components.

Table of contents

Wiring diagram

WS 170 KL - Wiring diagram

WS 170 KBR / KBL / KBRET / KBLET wiring diagram

A - WS 170 / RB 170 ventilation unit

A1 - Electronic slide-in module

A2 - Controlled domestic ventilation unit control

B1- RLS 1 WR / RB-ZF4 single control unit

B2-B5 - Parallel connection max. 5 single control units

BTS - RLS T1 WS touchscreen control unit

W1 - 230 V AC connecting cable

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

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

W5 - Connecting cable for PTC heat register

W7 - Connecting cable for bypass motor

S1 - Unit switch

S2 - Door contact switch

M1 - Exhaust air/outgoing air fan

M2 - Outside air/supply air fan

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

Further connection options

W2' - Connecting cable for RLS T1 WS or Modbus touchscreen control unit, e.g. LIYY 4 x 0.34 mm²

W3 - Connecting cable (provided by customer) for external safety device with potential-free contact 12 V/2 A

W4 - Connecting cable for door contact switch

W8 - Connecting cable (provided by customer) for external sensor 1

W9 - Connecting cable (provided by customer) for external sensor 2

X01 - Slot for optional communication plug-in module EnOcean/KNX

ZP1 - 230 VAC connecting terminals for switching the additional circuit boards

USB - USB service interface Ethernet network interface (LAN)



WS 170 ventilation unit with RLS 1 WR room air control

A - WS 170 electronic slide-in module

A2 - Control circuit board: jumper 8 bridged (= factory setting)

B1 - 1. RLS 1 WR room air control

B2 - 2. RLS 1 WR room air control

W1 - 230 V AC connecting cable

W2' - Control cable for room air control

V - Distributor (supplied by the customer)

You can connect up to 5 RLS 1 WR room air controls to the ventilation unit. If several room air controls are used, no CO2 sensor may be connected.

RLS 1 WR room air control can also be connected to RLS D1 WR room air control.

No need for distributor "V" if only one RLS 1 WR room air control is connected.



WS 170 ventilation unit with RLS 1 WR room air control

A - WS 170 electronic slide-in module

A2 - Control circuit board: jumper 8 bridged (= factory setting)

B1 - 1. RLS 1 WR room air control

B2 - 2. RLS 1 WR room air control

W1 - 230 V AC connecting cable

W2' - Control cable for room air control

V - Distributor (supplied by the customer)

You can connect up to 5 RLS 1 WR room air controls to the ventilation unit. If several room air controls are used, no CO2 sensor may be connected.

RLS 1 WR room air control can also be connected to RLS D1 WR room air control.

No need for distributor "V" if only one RLS 1 WR room air control is connected.



Connection of sensors to WS 170 KBR / KBL / KBRET / KBLET

A - Ventilation unit

A1 - Electronic slide-in module

A2 - Controlled domestic ventilation unit control

CO2 - CO2-sensor ( accessories)

VOC - Air quality controller ( accessories)

r.h. - Humidity sensor ( accessories)

T-S - Intermittent ventilation button / external potential-free contact

W8 - Connecting cable (provided by customer) for external VOC sensor, e.g. LIYY 3 x 0.5 mm²

W8' - Connecting cable (provided by customer) for external r.h. sensor 1, e.g. LIYY 3 x 0.5 mm²

W8'' - Connecting cable (provided by customer) external pushbutton / potential-free contact (function – intermittent ventilation/sensor type = digital), e.g. LIYY 2 x 0.5 mm²

W9 - Connecting cable (provided by customer) external CO2 sensor 2, e.g. LIYY 3 x 0.5 mm² W10 - Connecting cable (provided by customer) external sensor 3, e.g. LIYY 3 x 0.5 mm²

W11 - Connecting cable (provided by customer) for external sensor 4, e.g. LIYY 3 x 0.5 mm²

The control’s sensor inputs can be freely parametrised.

The inputs are not defined for a particular sensor type.

When commissioning a sensor, the sensor input on the control must be activated and the sensor type specified  Commissioning and maintenance instructions.

If the RLS 1 WR is deactivated (parameters – single control unit

inactive) on the controller, a connection of up to four sensors is possible.

The power supply to sensors 3 + 4 can be ensured via terminals LD1, LD2, LD3 (all 12 VDC) or with double assignment, via the 24 VDC supply of sensor connections.



Predecessor - successor

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