
OPERATION
INSTRUCTIONS
09/04 page 04
20
Assembly bracket dimensions
Type A B C
VKN-P 300/K 100 300 10
VKN-P 350/K 105 330 10
VKN-P 400/K 80 270 10
VKN-P 450/K 85 290 10
VKN-P 500/K 85 320 10
VKN-P 560/K 75 280 11
VKN-P 630/K 75 305 11
Flexible connection dimensions
∅D1∅D3
∅D2∅D4
150
nx∅
1d1nx∅2d2
∅d∅d
Type ØD1 ØD2 ØD3 ØD4 ØdØd1 Ød2 n1* n2*
VKN-P 315/P 350 375 356 388 315 10 9,5 12 8
VKN-P 355/P 390 415 395 428 355 10 9,5 12 8
VKN-P 400/P 445 480 438 474 400 12 9,5 12 12
VKN-P 450/P 495 530 487 524 450 12 9,5 12 12
VKN-P 315/P 350 375 356 388 315 10 9,5 12 8
VKN-P 355/P 390 415 395 428 355 10 9,5 12 8
VKN-P 400/P 445 480 438 474 400 12 9,5 12 12
VKN-P 450/P 495 530 487 524 450 12 9,5 12 12
VKN-P 500/P 545 580 541 574 500 12 9,5 16 12
VKN-P 560/P 605 640 605 639 560 12 12 16 16
VKN-P 630/P 675 710 674 708 630 12 12 16 16
*number of openings in the flanges
DIMENSIONS
ØC
5
ØE(Nx)
ØA
ØD
B
3
Weight
DN ABCDEN*[kg]
VKN-P-02-300/4E 315 388 140 356 307 9,5 8 7,0
VKN-P-02-350/4E 355 428 170 395 361 9,5 8 8,9
VKN-P-02-400/4E 400 474 190 438 404 9,5 12 10,5
VKN-P-02-450/4E 450 524 200 487 456 9,5 12 12,1
VKN-P-02-350/4D 355 428 170 395 361 9,5 8 8,9
VKN-P-02-400/4D 400 474 190 438 404 9,5 12 10,5
VKN-P-02-450/4D 450 524 200 487 456 9,5 12 12,1
VKN-P-02-500/4D 500 574 230 541 508 9,5 12 19,7
VKN-P-02-560/4D 560 639 250 605 563 11,5 16 22,2
VKN-P-02-630/6D 630 708 250 674 638 11,5 16 23,2
Dimensions [mm]
Type
Dimension "DN" is a nominal diameter of the duct connected.
* "N" - number of openings in the flange. Connecting dimensions "DN,A,C,E,A" correspond to DIN 24 154 (VKN-P 315-
500 DIN 24 154, series 5, VKN-P 560-630 DIN 24 154, series 2).
Only such a person that is physically and intellectually qualified to this activity and who is acquainted with these
Operation instructions and generally binding safety regulations in force can perform the service and maintenance of the
fan. The fan operation is controlled by the control of the HVAC system into which it is connected.
It is necessary to perform regular inspections of the fan stemming from requirements of relevant safety regulations and
standards. During the operation, it is necessary to observe the correct function of the fan, smooth operation, take care of
the cleanness of the fan and its surroundings, and load the fan to the extent of its power characteristics only. If the fan is
working permanently, we recommend that the check be performed every 6 months. Before cleaning, it is necessary that
the fan is disconnected from the main power supply and the main switch is blocked. Wait until the motor and fan propeller
are stopped.
SERVICE AND
MAINTENANCE