SGL SDR 63 Operating Instructions Manual
OPERATING INSTRUCTIONS
PLASTIC CENTRIFUGAL ROOF MOUNTED FANS
SDR 63.3 SIZES 355 – 710
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
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.
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
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 electrodynamically in two planes. Minimum balancing quality Q 6.3 to
ISO 1940.
10. Servicing/Conversion 6
Appendix: Characteristics diagrams 8-11
2
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
Housing, motor support and impellers are made from
thermoplastics. The permissible operating temperatures of
the fans are with construction in
PVC 50°C
PP 70°C
and must not be exceeded.
Fig. 1 SGL ACOTEC Centrifugal Roof Fan SDR, flat roof installation
12
10
8
11
6
13
14
7
9
18
2
19
20
3
1
4
21
5
1 – Housing
2 – Motor support
3 – Impeller
4 – Air intake
5 – Liner
6 – Splinter guard
7 – Upper ventilation hose
8 – Lower ventilation hose
9 – Motor
10 – Motor lead
11 – Fan supply cable
12 – Terminal box
13 – Moisture-proof union
14 – Roof mount
15 – Roof covering
16 – Roof penetration
17 – Roof liner
18 – Hitching point
19 – Fixing screw, motor
20 – Fixing screw, motor flange
21 – Fixing screw, fan
16
1715
3
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
3. Realization of the safety requirements
SGL ACOTEC Centrifugal Roof Mounted Fans Type SDR
are manufactured to the latest technological standards and
conform to the legal requirements in design, construction
and safety measures. If used in accordance with their
purpose and in compliance with this operating manual,
they are safe and reliable.
• All rotating parts are covered so that they cannot be
touched (motor enclosed, impeller screened by a
housing).
• On open-inlet fans the air intake is covered by a protective grille.
• The enclosures are radially surrounded by a splinter
guard, which if the impeller and/or housing are
damaged, prevents flying fragments.
• The enclosures and plastic impellers are welded in
accordance with the valid regulations. Welding additives
for thermoplastics conform to DVS 22.11.
• All impellers are statically and dynamically balanced
in two planes. Balancing quality min. Q 6.3 to ISO 1940.
The user of centrifugal roof fans supplied by SGL ACOTEC
has the following obligations:
• The fans must only be operated, serviced, converted
and repaired by authorized persons. These must be
instructed by the user in accordance with the operating
instructions about the correct procedure during the
above work and about possible angers.
• The user is obliged to operate the supplied product
only in sound condition.
• Unauthorised modifications which affect the function
and/ or safety of the fan are not permitted.
• All servicing, inspection, conversion and maintenance
operations must only be carried out with the fan at rest
and the power supply shut off.
• The removal of information-, instruction- and prohibition
plates from the product is not permissible. In all cases,
the fan must also be operated in accordance with all
local safety and accident prevention regulations.
4. Transport and storage
• The fans must be transported carefully and safely to
prevent damage through excessive force. Any impact-,
traction- or pressure stress on the plastic housings
must be avoided.
• When transported by truck, rail or ship, the fans must
be loaded and secured so that slipping, tilting or
friction are avoided.
• The fans must be lifted and carried by means of fork-lift
truck or crane. When transported by crane, the fans
must be attached at the four plastic hitching eyes (fig. 2)
provided for that purpose.
To prevent damage of the eyes, shackles or fabric
attachments must be used.
The storage of the fans does not require any special
arrangements. They should be stored in rooms or on
roofed-over areas.
The discharge opening must be covered to prevent
objects from dropping into it. The fans must not be
stacked.
Fig. 2 SDR crane handling
5. Positioning
The SDR fans are placed on flat or sloping roofs by
installation on roof mounts, which are fixed onto the roof
covering and sealed with the roof liner (fig. 1).
• The intake-side duct must be connected to the liner
passing through the roof penetration and must only be
made with flexible connectors (bellows-type expansion
joints).
• Drive motor and terminal box at the top section of the
4
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