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KRFI-S • Roof exhaust units

The KRFI-S series has got a 40mm insulation of mineral wool. A strong glass fibre yarn prevents the escape of mineral fibres. An additional mechanical protection is done by a perforated metal plate. The average sound attenuation is 9dB(A).

Application

  • Standard
  • Kitchen

Composition

  • Outer casing made of seawater resistant AlMg3
  • Motor outside of air stream
  • Motor voltage controllable
  • Swing out fan section
  • With isolator switch
  • Integrated drain pan
  • 40 mm mineral wool insulation

Order example

  • KRFI-S 400 E4

KRFI-S= Type of fan

400= Size

E= 1x230V

2= 1400rpm

Air performance data

Qv [m3/h]

50 Pa

100 Pa

150 Pa

200 Pa

250 Pa

300 Pa

400 Pa

500 Pa

600 Pa

700 Pa

KRFI-S 280 E2

2570250024002300220021001930176015501180

KRFI-S 315 E2

3780368035903480338032703000270023702000

KRFI-S 355 E2

4570448043904300418040803830355032302860

KRFI-S 400 E4

3660342031602850252021501370---

KRFI-S 450 E4

55805300503047704500422034802300--

KRFI-S 500 E4

762073007020670064006040526044203290-

KRFI-S 560 D4

11430110401064010180974093208520763067105610

KRFI-S 630 D4

15092148401457314284140131373113122123371139710486

KRFI-S 710 D6

146081397813253125061184911225905058222261-

Selection curves

Selection curves

Technical data

U [V]P [W]I [A]

SCT

ŋt [%]

tm [°C]tu [°C]to [°C]n [rpm]

Lwa [dB(A)]

Lwa 5

Lwa 6Lwa 2

KRFI-S 280 E2

1 x 2306503.90

BTRNTK 1-50

4012075-252866

82

79

-

KRFI-S 315 E2

1 x 2308805.10

BTRNTK 1-75

4412050-252846

80

77

-

KRFI-S 355 E2

1 x 23012507.70

BTRNTK 1-100

4212060-252897

87

81

-

KRFI-S 400 E4

1 x 2305402.90

BTRNTK 1-35

33

120

75-251400

71

70

-

KRFI-S 450 E4

1 x 2308104.30

BTRNTK 1-50

4612055-251399

75

73

-

KRFI-S 500 E4

1 x 23012407.20

BTRNTK 1-75

4712050-251418

79

80

-

KRFI-S 560 D4

3 x 40020804.50 5212070-251413

80

79

-

KRFI-S 630 D4

3 x 40039907.50

-

5112060-251440

85

83

-
KRFI-S 710 D63 x 40020704.50-4712060-25945

83

78

-

SCT = transformer controller

ŋt = maximum total efficiency

tm = maximum air temperature

tu = maximum ambient temperature

to = minimum operating temperature

Lwa 2 = Casing sound power level

Lwa 5 = Sound power level @inlet

Lwa 6 = Sound power level @outlet

The sound power levels are measured according to DIN 45635 part 2 & 38

Dimensions

A [mm]

B [mm]

C [mm]

D [mm]

E [mm]

F [mm]

Kg

KRFI-S 280 E2

567-61545144157734

KRFI-S 315 E2

567-61545144157736

KRFI-S 355 E2

700-75061160271257

KRFI-S 400 E4

700-75061160271252

KRFI-S 450 E4

7913990868367487054

KRFI-S 500 E4

7913990868367487073

KRFI-S 560 D4

9693811139459361075109

KRFI-S 630 D4

9693811139459361075112

KRFI-S 710 D6

105538-109810901343141
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