Continuous product development at IV Produkt may give rise to specification changes without notice.
Flexomix 060-950
DU11.F.081008.01GB
Fan Section (code EFA-FD/FR)
The EFA-FD/FR fan section is a unit section with
built-in fan with vertical outlet for use as a supply air
or extract air fan in ventilation systems together with
other functional sections in the Flexomix series.
Design
•
EFA-FD with direct-driven fan (code ELFD).
The direct-driven fan is supplied with any of the
following types of motor:
- Motor including mounted frequency inverter.
- Motor to efficiency class eff1, for connection
to an external frequency inverter.
- Motor to efficiency class eff2, for connection
to an external frequency inverter.
•
EFA-FR with belt-driven fan (code ELFR).
The belt-driven fan is available in two versions:
- ELFR-FB belt-driven centrifugal fan with,
casing, forward-curved blades.
- ELFR-BB belt-driven centrifugal fan with,
casing, backward-curved blades (sizes 150-950).
• To facilitate servicing, the fan and motor unit are
withdrawable from the casing.
• To adequately cool the motor, the air tempera-
ture should not exceed 50 ˚C.
• The fan and motor are very effectively vibration-
isolated from the casing with a vibration attenu-
ated outlet spigot and rubber mountings sized
to suit the fan’s operating conditions.
Normal resonance frequency is 7–10 Hz.
• The standard outlet of the fan section is
equipped with an end connection.
• The design of some of the components in the
fan system do not conform to corrosion resist-
ance class C4.
Other information is available under the Functional
Fittings tab, Direct-driven Fan (code ELFD) and Belt-
driven Fan (code ELFR)
.
Configuration EFA-FD
ELFD-060 – 950
310V
320V
310H
320H
210V
220V
210H
220H
210V
210H
310V
310H
ELFR-060 – 190-FB, ELFR-150 – 190-BB
Configuration EFA-FR
ELFR-060 – 950-FB, ELFR-150 – 950-BB
ELFD-060 – 190
