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Zehnder ComfoAir 550

  • Comfort ventilation for dutys up to 550 m³/h
  • Heat recovery with an efficiency of up to 95%
  • Moisture recovery with the Zehnder enthalpy exchanger (optional)
  • Low power consumption thanks to EC direct current motors
  • Automatic 100% summer bypass
  • Infinitely variable frost protection function: efficient even at low temperatures
  • Quick, safe installation and servicing
  • Simple operation
  • Integrated preheater (optional)
  • Integrated controller for brine geothermal heat exchanger
  • Wireless remote control available
  • Digital Ease or Luxe control unit
  • With weekly timer as standard
  • 'Open Fire' programme for properties with chimneys
  • Passivhaus Institut accredited

DescriptionArt. no.
ComfoAir 550 L471 334 400
ComfoAir 550 R471 334 405
ComfoAir 550 L Luxe471 334 420
ComfoAir 550 R Luxe471 334 425
ComfoAir 550 L Luxe with Pre Heater471 334 440
ComfoAir 550 R Luxe with Pre Heater471 334 445

Switch setting Speed Air volume Pressure Power Current cos ϕ Sound level Weight
Factory setting Qv ΔP st consumption draw Return air Supply air
(speed level) % m³/h Pa W A (-) db(A) db(A) kg
ComfoAir 550
(1) Absent 15% 50 5 13 0,12 0,47 28 35 47
(2) 30% 140 30 26 0,22 0,51 38 50
(3) Level 1 40% 180 60 41 0,35 0,51 44 58
(4) 50% 225 100 69 0,57 0,53 48 63
(5) 60% 280 150 110 0,86 0,56 52 67
(6) Level 2 70% 330 215 160 1,21 0,57 55 71
(7) 80% 380 285 220 1,65 0,58 59 74
(8) 90% 430 360 310 2,22 0,61 63 78
(9) Level 3 100% 460 410 350 2,459 0,62 63 79
Sound, supply air
Sound power at the supply air connection at a distance of 0 m
Ventilation device Speed
Type level 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz
ComfoAir 550 9 78 78 79 69 70 66 53
ComfoAir 550 8 78 77 77 67 69 65 52
ComfoAir 550 7 75 75 73 66 66 61 48
ComfoAir 550 6 73 72 70 63 63 56 43
ComfoAir 550 5 70 70 66 58 58 51 38
ComfoAir 550 4 67 68 61 53 53 44 32
ComfoAir 550 3 63 65 55 45 44 35 24
ComfoAir 550 2 56 55 47 37 37 25 14
ComfoAir 550 1 45 39 29 26 21 9 12
Sound, return air
Sound power at the return air connection at a distance of 0 m
Ventilation device Speed
Type level 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz
ComfoAir 550 9 67 66 63 51 49 42 33
ComfoAir 550 8 66 65 64 50 47 41 31
ComfoAir 550 7 63 62 60 48 45 37 27
ComfoAir 550 6 60 60 54 45 41 33 23
ComfoAir 550 5 57 57 50 41 37 28 20
ComfoAir 550 4 52 55 46 36 32 21 18
ComfoAir 550 3 46 51 38 29 25 14 13
ComfoAir 550 2 45 44 33 27 18 8 11
ComfoAir 550 1 40 29 22 20 3 6 13
Sound, device emission
Sound power at the return air connection at a distance of 0 m
Ventilation device Speed
Type level 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz db(A)
ComfoAir 550 9 57 56 53 46 44 54
ComfoAir 550 8 56 55 52 45 43 53
ComfoAir 550 7 53 52 50 42 40 50
ComfoAir 550 6 50 49 48 39 36 48
ComfoAir 550 5 47 47 46 34 32 45
ComfoAir 550 4 44 45 39 30 27 41
ComfoAir 550 3 38 41 32 24 21 35
ComfoAir 550 2 37 36 27 20 15 28
ComfoAir 550 1 26 29 20 19 17 25


Product Description Article number

ComfoControl Ease control unit
Control unit for ComfoAir 140, 200, 350 and 550


655 010 100

Housing for surface mounting of Ease control unit

659 000 250

ComfoControl Luxe control unit
Control unit for ComfoAir 350 and ComfoAir 550


655 010 110

Remote-controlled control unit
as an additional handset for the Ease control unit


655 000 755

ComfoAir 550 assembly base
Height = 250 mm


642 300 140

Dry siphon 5/4" for ComfoAir 350 / 550
and ComfoFond-L


990 201 330

Filter set for ComfoAir 350 / 550 G4
2 pieces


006 040 202

Filter set for ComfoAir 350 / 550 G4 / F7
2 pieces


006 040 250

The right solution

All products with technical documentation
Go to product catalogue


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