2
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2
Introduction
This technical documentation contains detailed instructions for proper operation and maintenance of fan units
and is intended for technical staff with the necessary qualifications. It is presumed that the reader has
necessary technical knowledge and experience with fan and blower handling, together with some theoretical
knowledge. Damage caused as a result of non compliance with the instructions in this manual, or improper use
of the machinery shall not be covered by the warranty of KONČAR-MES d.d. Improper use also includes power
network switching during operation of the machine, as this might damage rotating parts.
Following type of fans will be included in this manual:
2.1.
Centrifugal fans
These types of fans are marked as followed:
A
B
C
D
E
F
G
VARSK
BT
500
1U
–D0°
0315/224x355
D3540
M225 B5 P44
A
– Fan type VAR
– Ventilator Radial without housing
VARSK
– Ventilator Radial with spiral housing
B
– version (one letter or letter combination)
A - fans in special construction
B - ship construction T - PEX construction
C
– fan marking by the type and outer diameter of rotor (approximate value) – sizes 250-280-315-355-400-450-
500-560-630-710-800-900-1000-1120-1250
– sizes are defined by internal factory standard
D
– number of intakes (1U – one intake, 2U- two intakes, 4U – four intakes) and rotation (D – to the right:
CW, L
– to the left: CCW) with position defined in degrees according to DIN 6885
E - suction diameter in mm / exaust diameter in mm
F
– drive designation (D-direct drive, R- belt drive, S- clutch drive) and rotation speed in r.p.m.
G
– electromotor data as followed: IEC size (i.e. M225); IEC shape (i.e. B5); motor power in kW (i.e. P44)
REMARK:
- designations A, B and C are used for basic marking
- other designations are used for additional markings
2.2.
Axial fans
Meaning of marking for axial fans is as followed:
A
B
C
D
E
F
VAAZ
BT
1250A
L600
D3540
M225 B5 P44
A
– Fan type
VAA
– Ventilator Axial with fixed blades
VAAZ
– Ventilator Axial with adjustable blades angle
B
– version (one letter or combination of letters)
A - special construction B - ship construction C- cooling application
H- high temperature T - PEX construction
C- fan marking by the type and outer diameter of rotor (approximate value)
– sizes315- 355-400-450-500-560-
630-710-800-900- 1000-1120-1250
– 1400-1600 sizes are defined by internal factory standard
A-air flow direction
D
– housing length in mm
E- rotation (D-right, L-left, R-reversible) and r.p.m. (for motor with multiple speed D3540/1600)
F
– electromotor data as followed: IEC size (i.e. M225); IEC shape (i.e. B5); motor power in kW (i.e. P44)
REMARK:
- designations A, B and C are used for basic marking
- other designations are used for additional markings