2
1. General notes
This operating manual is valid for all plastic centrifugal roof
fans of series
SDR 63 Sizes 355 - 710
manufactured and supplied by SGL ACOTEC GmbH in
56427 Siershahn, Berggarten 1, Germany.
The instructions must be handed to the user, who has to
inform the people responsible for operation, servicing and
repair. No liability is accepted for damage resulting from
non-observance of the instructions.
The fans supplied by SGL ACOTEC are designed with
reference to the order on the basis of flow rate, total
pressure differential, medium, operating temperature and
installation site. The actual parameters are shown on the
machine card or rating plate.
The product supplied must only be used for the application
specified in the contract and within the scope of the
conversion possibilities listed in this operating manual. Any
other use is regarded as not in accordance with the
intended purpose. SGL ACOTEC do not accept liability for
any damage arising from such a use.
2. Construction and operating principle
SGL ACOTEC Centrifugal Roof Mounted Fans of Series
SDR 63 have been designed as vertically discharging,
direct-drive feed appliances for corrosive gases and
vapours. The medium handled is drawn in axially by the
rotating impeller and by deflection downstream of the
horizontal impeller outlet again passed axially around the
enclosed motor and to the outlet branch.
SDR fans of sizes 355 - 710 are of welded construction
and consist of the following sub-assemblies: enclosure,
motor support, impeller, air intake and tubular liner. Motor
support as well as the top and bottom section of the
enclosure are welded together. For Sizes 355 and 400, 450
and 500 as well as 560 and 630, identical enclosures are
used respectively. This makes it possible to convert the
fans also after delivery and installation by changing the
impeller and air intake to the other respective size.
The motor support is designed for the installation of six
motor sizes (71 - 132) in the design B5. The motors are
screened against the medium; cooling air supply is via
ventilation hoses (fig. 1). The impellers used have eight
backward curved blades and are balanced electrodyna-
mically in two planes. Minimum balancing quality Q 6.3 to
ISO 1940.
CONTENTS
1. General notes
2
2. Construction and operating principle
2- 3
3. Realization of the safety requirements
4
4. Transport/Storage
4
5. Installation
4
6. Drive
5
7. Installation of the motors
5
8. Commissioning
5
9. Inspection/Maintenance
6
10. Servicing/Conversion
6
Appendix: Characteristics diagrams
8-11
Issued: PA S
Operating manual No. 28.95.103
Valid from: Serial No. 29956
Date: 01.03.2001
Plastic Radial Roof Mounted Fans
SDR 63 Sizes 355-710