Aeronom room air system

WRG 300 WPK

No longer available for delivery
Article number: 0082.0042
Manufacturer: MAICO
Compact ventilation system with heat recovery and heat pump with cooling function

Product data sheet
WRG 300 WPK IM0022792.PNG Compact ventilation system with heat recovery and heat pump with cooling function

Characteristic curve

WRG 300 WPK - Characteristic curve

WRG 300 WPK - Characteristic curve

Dimensioned drawing

WRG 300 WPK - Dimensioned drawing [mm]

  1. NW 150 mm outgoing air
  2. NW 150 mm outside air
  3. NW 150 mm exhaust air
  4. NW 150 mm supply air
  5. Electrical connection
  6. Condensation connection
  7. WPK only: Additional condensation connection

Technical data

WRG 300 WPK - Technical data

Article WRG 300 WPK
Air flow volume 320 m³/h / System pressure at 150 Pa
Power consumption 40 W / 295 W / 440 W / Power consumption measured at kwl
Imax 3 A / strom-kwl
Degree of protection IP 00
Colour White-blue
Weight 50
Heater power rating 2.010 W
Heat pump Air/air
Cooling capacity 850 W
Packing unit 1 piece
Range D
GTIN (EAN) 4012799820420
Article number 0082.0042

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA2, high (dB(A))

30

44

51

49

48

44

40

35

55

LWA2, medium (dB(A))

29

41

46

43

43

44

46

43

53

LWA2, low (dB(A))

13

25

24

18

17

16

16

14

38

LWA5, high (dB(A))

19

33

39

46

48

44

42

36

52

LWA5, medium (dB(A))

13

24

28

41

35

31

26

18

51

LWA5, low (dB(A))

8

15

21

24

22

17

15

13

37

LWA6, high (dB(A))

19

33

39

46

48

44

42

36

52

LWA6, medium (dB(A))

13

24

28

41

35

31

26

18

43

LWA6, low (dB(A))

8

15

21

24

22

17

15

13

37

LWA2= housing sound power level in dB.

LWA5= free inlet sound power level in dB.

LWA6= free outlet sound power level in dB.

Accessories

WRG 300 WPK - Accessories

Specific accessories

Product type Name Art. No. Price*(EUR) Action
Air filter, replacement ZF 300 0093.0696 on request
  • On the notes
Thermostat TH 10 0157.0764 on request
  • On the notes

Product description

Productdescription

WRG 300 WPK

short description

Compact ventilation system with heat recovery and heat pump with cooling function

Product description

Features

  • 65% degree of heat provision.
  • WRG 300 WP: Plus re-heating of the supply air by means of an integrated heat pump.
  • WRG 300 WPK: Plus re-heating, or cooling if desired, of the supply air by means of an integrated heat pump.
  • Inner coating of heat resistant synthetic material, non-hygroscopic.
  • With two integrated filters, filter change is possible without tools.
  • 4 DN 150 duct connections on the upper side of the unit.
  • Hermetically sealed cooling circuit.
  • R134a coolant.
  • Heat pump operation only at ventilation step 2 = normal and 3 = high.
  • Vaporizer and capacitor made of copper tubes with aluminium lamella..
  • Recommended installation site is a cellar room.
  • WRG 300 WP: Housing made of galvanised sheet-steel; heat pump is dark grey.
  • WRG 300 WPK: Housing made of galvanised sheet-steel; heat pump is dark grey.
  • Main components for WP300 heat pump module: Compressor, condenser, evaporator, expansion valve, dryer, inspection window , Pressostat.
  • Evaporator and capacitor protrude from the side, suitable for pushing into WRG 300.
  • Compressor: Piston stroke compressor, 230 V AC, 50 Hz.

Heat exchanger

  • Aluminium counterflow plate heat exchanger.
  • The heat exchanger can be removed without tools.
  • Separate air flows, separation by means of aluminium plates.
  • The heat exchanger can be exchanged with the summer casssete SK 300 for operation in summer. No tools are required for exchange.
  • Easy cleaning of the heat exchanger with water and a mild detergent.

Anti-frost protection

  • The frost protection feature switches the supply air fan off when the outgoing air temperature is too low (< 4 °C).
  • The heat pump switches the compressor off when the outgoing air temperature is too low ( +0.5° C).
  • If the outgoing air rises to +0.5°C, the compressor automatically switches on again.
  • Always combine heat recovery systems with earth heat exchangers or electrical frost protection heating, in order to be able to guarantee trouble-free operation, even at very low temperatures. Furthermore, an earth heat exchanger guarantees additional heater power rating in winter and additional cooling power in summer.

Heat recovery fan

  • 2 centrifugal fans, one fan each for supply air and exhaust air.
  • Fans with centrifugal impellers curved to the front.
  • Thermal overload protection as standard feature.
  • 3 ventilation steps: 1 = economy setting, 2 = normal, 3 = high.

Mounting instructions

  • Housing covers can be unscrewed.
  • Connect air channels and condensation drainage prior to commissioning.
  • Recommended for installation in cellars or store rooms.
  • Sound absorbers on the inlet and outlet side are recommended.
  • Material: Sheet steel, galvanised
  • Use ELM flexible cuffs to prevent transfer of vibrations onto the duct system.

Electrical connection

  • When delivered, the device is assembled and ready for service.
  • WRG 300 WP: 3-core connection cable with safety plug.
  • WRG 300 WPK: 3-core connection cable, 1.5 m long.
  • WRG 300 WP: Controlled using RLS 1 accessories.
  • WRG 300 WPK: Thermostat controller (5° - 30° C) included in delivery.

Condensation drain

  • The condensation is drained at the condensation drainage fitted on the side of the unit.

Safety devices

  • Fan motor with thermal overload protection: The thermal contact switches off under thermal overload and comes on automatically again after cooling down.
  • Heat pump: HIgh-pressure protection (Pressostat) with reclosing lockout and RESET key.

Table of contents

Wiring diagram

WRG 300 WPK - Wiring diagram

TH 10 thermostat: Anti-frost protection fuse

THR300 step switch (contained in scope of delivery)

R1 Outside air sensor (supply temperature). Installation: outside air duct, close to the outside wall / north side

WRG 300 K Heat recovery unit

M1 Exhaust air fan

M2 Supply air fan

F1 Anti-frost protection fuse. In the WRG 300 system, this must be supplied by the customer, bridged to terminals M2 and M4. See WRG 300 K wiring diagram

WP 300 K Heat pump

P1 Pressostat (high pressure fuse)

T1 Anti-frost protection fuse (vaporiser)

Y1 Cooling / heating change over valve

M1 Compressor

BU1 safety plug (supplied by the customer)

Terminals M2 and M4 must be bridged by the customer



Predecessor - successor

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