Centralised ventilation unit

WRG 300 EC

No longer available for delivery
Article number: 0082.0062
Manufacturer: MAICO
Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors... more information
Application examples: Waiting room
WRG 300 EC IM0009847.PNG Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, 4 x DN 160, 70 - 300m³/h, KNX connection possible
WRG 300 EC IM0013704.PNG Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, 4 x DN 160, 70 - 300m³/h, KNX connection possible

Characteristic curve

WRG 300 EC - Characteristic curve WRG 300 EC

  1. 100 m3/h
  2. 150 m3/h
  3. 200 m3/h
  4. 250 m3/h
  5. 300 m3/h

Dimensioned drawing

WRG 300 EC - Dimensioned drawing [mm]

  1. Outside air
  2. Exhaust air
  3. Outgoing air
  4. Supply air
  5. Condensation connection
  6. Electrical connection

Technical data

WRG 300 EC - Technical data

Article WRG 300 EC
Number of ventilation levels 3
Air flow volume 70 m³/h - 300 m³/h
Volumetric flow constant yes
Speed controllable
Type of voltage Alternating current
Rated voltage 230 V
Frequency 50 Hz/60 Hz
Power consumption 40 W - 160 W / At 100 Pa counter pressure
Imax 1,06 A
Degree of protection IP 31
DIBT approval No
PHI certification No
Installation site Cellar / Storage tank / Jamb wall / Utility room / Heating room
Heat exchanger material PETG plastic
Colour Pearl white, similar to RAL 1013
Weight 31,5 kg
Filter class G4
Connection diameter 160 mm
Connection diameter of condensation drain 1/2" inside thread
Width 675 mm
Height 602 mm
Depth 420 mm
Airstream temperature at IMax 50 °C
Degree of heat provision 90 %
Heat exchanger construction type Cross-counterflow
Bypass No
Frost protection External
Antifreeze circuit yes
Summer circuit No
Filter monitoring time controlled with RLS 2 F
Humidity control optional with HY 5, HY 5 I, HY 10 AP, HY 10 UP
CO2-control (optional) -
Air quality control (optional) -
KNX connection (optional) yes
Control unit included in scope of delivery. No
Control unit (optional) RLS 2 F, RLS 3
Wireless switch on/off (optional) XE 1, XS 1
Housing emission sound pressure level 45 dB(A) / Spacing 1m, sound absorption 10 m²
Packing unit 1 piece
Range K
GTIN (EAN) 4012799820628
Article number 0082.0062

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA2, Level 3 (dB(A))

25

33

38

39

41

38

40

33

47

LWA5, Level 3 (dB(A))

22

33

34

33

33

27

25

26

40

LWA6, Level 3 (dB(A))

36

48

53

57

60

55

52

47

63

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 an operating point on the connectors facing the room. LWA5 Exhaust air connections, LWA6 Supply air connections.

Measured at air volume of 210 m³/h.

Accessories

WRG 300 EC - Accessories

Specific accessories

Product type Name Art. No. Price*(EUR) Action
Summer cassette SK 300 Plus No longer available for delivery 0180.0924 on request
  • On the notes
Air filter, replacement WRF 300-400 EC 0093.0061 on request
  • On the notes
Room air control RLS 2 F 0157.0806 on request
  • On the notes
Room air control RLS 3 0157.0831 on request
  • On the notes

General accessories

Product type Name Art. No. Price*(EUR) Action
MAICOTherm ventilation duct system, thermally insulated MAICOTherm MT thermally-insulated ventilation duct system - - -
Brine earth heat exchanger EW brine earth heat exchanger - - -
MAICOFlex ventilation duct system, round Flexible round MAICOFlex MF 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
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, 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
Thermally insulated long pipe elbow ABLS 160 0058.0048 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
Slide-in sound absorber SDE 16 0044.0216 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
Hygrostat HY 10 AP Discontinued product 0157.0358 on request
  • On the notes
Hygrostat HY 10 UP Discontinued product 0157.0357 on request
  • On the notes
Folded spiral-seams duct WFR 160 No longer available for delivery 0055.0079 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
Hygrostat HY 5 No longer available for delivery 0157.0123 on request
  • On the notes
Hygrostat HY 5 I No longer available for delivery 0157.0125 on request
  • On the notes

Product description

Productdescription

WRG 300 EC

short description

Centralised ventilation unit with very effective heat recovery through cross-counterflow exchanger, EC motors with constant volumetric flow regulation, 4 x DN 160, 70 - 300m³/h, KNX connection possible

Product description

Features

  • Special energy savings due to DC motors having EC technology for constant volumetric flow.
  • With sound-insulated fans for especially quiet running.
  • With automatic volumetric flow regulation for constant air quantities.
  • Sheet steel housing, powder-coated
  • Colour: pearl white, similar to RAL 1013.
  • Inner coating of heat resistant synthetic material, non-hygroscopic.
  • Easy filter change.
  • With two integrated G4 filters, filter change is possible without tools.
  • WRG 300 EC: 4 DN 160 duct connections on the upper side of the unit.
  • WRG 400 EC: 4 DN 180 duct connections on the upper side of the unit.

Heat exchanger

  • Counterflow plate heat exchanger made of synthetic material (PETG).
  • The heat exchanger can be removed easily once the front plate has been unscrewed.
  • The heat exchanger can be easily cleaned using water.

Anti-frost protection

  • Guaranteed anti-frost protection ensures that the heat exchanger does not freeze.
  • The frost protection feature switches the supply air fan off when the outgoing air temperature is too low.
  • Heat recovery systems combined with earth heat exchangers or an electric frost protection feature to also ensure perfect operations at low temperatures. In the winter, the earth heat exchanger also guarantees extra heating power and in the summer, extra cooling power.

Energy-efficient fans

  • 2 centrifugal DC fans, one fan each for supply air and exhaust air.
  • Fans with centrifugal impellers curved to the front.
  • 3 ventilation levels:
    • 1 = Basic ventilation/Night operation
    • 2 = Normal/Daytime operation
    • 3 = Intensive/Party operation
  • WRG 300 EC:
    • Factory setting - 100 / 150 / 225 m3/h.
    • Within each ventilation level, the air volume can be adjusted from 70 m3/h up to 300 m3/h in 5 m3/h levels adjustable.
  • WRG 400 EC:
    • Factory setting - 100 / 200 / 300 m3/h.
    • Within each ventilation level, the air volume can be adjusted from 70 m3/h up to 400 m3/h in 5 m3/h levels adjustable.

Mounting instructions

  • With bracket for wall installation, feet for floor installation.
  • Installation on the wall or a pedestal is required to ensure access to the condensation connection.
  • Housing covers can be unscrewed.
  • Provide sound absorbers on the inlet and outlet sides.

Electrical connection

  • When delivered, the device is assembled and ready for service.

Condensation drain

  • Condensation is drained out at the bottom of the unit. Condensation drainage (½" internal thread) for connection to a drain trap.

Table of contents

Wiring diagram

WRG 300 EC - Wiring diagram



WRG 180 EC / WRG 300 EC / WRG 400 EC with room air control RLS 3

Fuse protection provided by customer



Predecessor - successor

WRG 300 EC - Predecessor

Product type Name Art. No. Action
Aeronom room air system WRG 300 EC No longer available for delivery 0082.0060
  • On the notes

Notes
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