PRODUCTS

EShop-number

Password

Welcome to CAIROX BELGIUM

Pricelist request Request e-shop access Professional info Promotions

KRFI-SN F4 • Insulated roof fans 400°C/2h with vertical discharge

SERVICES

PROJECTS

DISTRIBUTION

Roof fans AC motor
Vertical discharge
Motor out of air stream
Centrifugal fan
400°C/2h / 200°C

Accessories

RAC-I • Acoustic curbs RC-I • Insulated roof curbs RAP • Adapterplate RAS F4 • Backdraught Shutters RFC F4 • Flexible connectors RIF • Matching flange FIS(-C)-44-B • Frequency converters 3x400V

Datasheet Certificates / Fire certificates

Roof fan with vertical discharge and acoustic insulation (40 mm) for smoke exhaust 400°C/2h

Application

Smoke extraction 400°C/2h up to 18.500 m³/h
Extraction of air up to 200°C
Extraction in industrial kitchens

Composition

Casing made out of AIMg3 aluminium that is resistant to seawater with protection grille.
40 mm insulation with fire class A1 according to DIN 4102-1
Turbine with backward curved impeller with blades that are made of galvanised steel plate up to type 280 and of aluminium for all other types, balanced G6.3 according to DIN ISO 1940.
Outer pole motor with maintenance-free ball bearings
Voltage: 400 Vac 3 ph
Swivel motor compartment
Insulation class F
Motor protection class: IP55
Integrated security switch
Equipped with integrated drain pan and evacuation.

Accessories

Acoustically insulated roof socket, type RAC-I
Roof socket, type RC-I
Adapter plate, type RAP
Backdraught shutter F400, type RAS F4
Flexible connector F400, type RFC F4
Matching flange, type RIF
Frequency converter 3x400V, type FIS(C-)-44-B

Order example

KRFI-SN 400 D4 F4 30

KRFI-SN = Type of fan

400 = Size

D = Controllable with frequency converter

4 = Number of poles

F4 = Suitable for smoke exhaust 400°C/2h

30 = Version

Air performance data

	Q [m³/h]
	50Pa	100Pa	150Pa	200Pa	250Pa	300Pa	400Pa	500Pa	600Pa	700Pa	800Pa	900Pa	1000Pa
KRFI-SN 225 D2 F4 30	1820	1770	1715	1660	1610	1555	1445	1315	1165	1020	845	480	480
KRFI-SN 250 D2 F4 30	2290	2240	2195	2140	2080	2020	1910	1790	1640	1470	1300	1100	812
KRFI-SN 280 D2 F4 30	2650	2595	2525	2450	2380	2300	2160	1980	1775	1520	1185	710	-
KRFI-SN 315 D2 F4 30	3725	3650	3575	3500	3435	3370	3250	3120	2950	2760	2530	2300	2030
KRFI-SN 315 D4 F4 30	1780	1670	1535	1340	1075	775	-	-	-	-	-	-	-
KRFI-SN 355 D4 F4 30	4100	3915	3725	3580	3460	3340	3060	2700	2280	1673	-	-	-
KRFI-SN 400 D4 F4 30	3840	3660	3480	3290	3070	2800	2225	720	-	-	-	-	-
KRFI-SN 450 D4 F4 30	6700	6430	6170	5990	5840	5680	5260	4730	4190	3380	1660	-	-
KRFI-SN 500 D4 F4 30	7690	7420	7160	6930	6700	6470	5890	5340	4630	3600	850	-	-
KRFI-SN 560 D4 F4 30	11725	11475	11180	10880	10570	10250	9675	9100	8375	7520	6520	5140	3150
KRFI-SN 630 D4 F4 30	14215	14030	13815	13570	13300	13030	12440	11850	11275	10630	9925	9100	8050
KRFI-SN 710 D6 F4 30	18540	18275	17850	17250	16520	15700	14000	12250	9675	5500	-	-	-

Selection curves

Technical data

	U [V]	P [W]	I [A]	SC_F	ŋ_t [%]	Tm [°C]	Tu [°C]	To [°C]	n [rpm]	Lwa [dB(A)]
	U [V]	P [W]	I [A]	SC_F	ŋ_t [%]	Tm [°C]	Tu [°C]	To [°C]	n [rpm]	Lwa 5	Lwa 6	Lwa 2
KRFI-SN 225 D2 F4 30	3x400	284	0.82	FIS-4420E-0.75-B	44.6	200* / 400**	50	-20	3540	77	75	-
KRFI-SN 250 D2 F4 30	3x400	425	1.14	FIS-4420E-0.75-B	42.8	200* / 400**	50	-20	3510	80	78	-
KRFI-SN 280 D2 F4 30	3x400	627	0.113	FIS-4420E-0.75-B	46.2	200* / 400**	50	-20	2920	81	82	-
KRFI-SN 315 D2 F4 30	3x400	1100	2.3	FIS-4420E-1.5-B	50.8	200* / 400**	50	-20	2950	81	80	-
KRFI-SN 315 D4 F4 30	3x400	202	79	FIS-4420E-0.75-B	36.6	200* / 400**	50	-20	1490	65	66	-
KRFI-SN 355 D4 F4 30	3x400	312	1.25	FIS-4420E-0.75-B	46.6	200* / 400**	50	-20	2060	75	75	-
KRFI-SN 400 D4 F4 30	3x400	492	1.04	FIS-4420E-0.75-B	48.1	200* / 400**	50	-20	1480	76	72	-
KRFI-SN 450 D4 F4 30	3x400	901	2.29	FIS-4420E-1.5-B	57.2	200* / 400**	50	-20	1640	76	77	-
KRFI-SN 500 D4 F4 30	3x400	1342	2.71	FIS-4420E-1.5-B	55.2	200* / 400**	50	-20	1485	78	80	-
KRFI-SN 560 D4 F4 30	3x400	2420	4.67	FIS-4420E-2.2-B	58.2	200* / 400**	50	-20	1480	80	80	-
KRFI-SN 630 D4 F4 30	3x400	4115	8.5	FIS-4420E-5.5-B	54.9	200* / 400**	50	-20	1490	91	86	-
KRFI-SN 710 D6 F4 30	3x400	2768	6.9	FIS-4420E-4.0-B	58.3	200* / 400**	50	-20	990	83	79	-

SC_F = Speed controller
ŋ_t = Maximum total efficiency
Tm = Maximum air temperature

* Maximum air temperature in continuous operation
** Maximum air temperature for smoke exhaust

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-SN 225 F4	534	556	467	213	245	363	36.4
KRFI-SN 250 F4	534	576	467	213	245	363	36.8
KRFI-SN 280 F4	651	655.6	514.5	286	330	463.5	44.6
KRFI-SN 315 F4	651	657.6	514.5	286	330	463.5	49.1
KRFI-SN 355 F4	804	-	565	438	450	625	60.9
KRFI-SN 400 F4	804	-	565	438	450	625	62.8
KRFI-SN 450 F4	984	-	737	438	535	697	103.4
KRFI-SN 500 F4	984	-	737	438	535	697	105
KRFI-SN 560 F4	1218	-	778	605	750	944	152
KRFI-SN 630 F4	1218	-	778	605	750	944	163
KRFI-SN 710 F4	1525	-	1003	674	840	1112	270

HELP Copyright Sales conditions Cookie policy fujitsu-airco.be

Requesting information. Please wait a moment...