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Flow switch for wet sprinkler systems
EN
Model FSFD, with adjustable time delay
Operating instructions
Contents
1. General information
2. Design and function
3. Safety
4. Transport, packaging and storage
5. Commissioning, operation
6. Faults
7. Maintenance and cleaning
8. Dismounting, return and disposal
9. Specifications
Declarations of conformity can be found online at www.wika.com.
© 04/2022 WIKA Alexander Wiegand SE & Co. KG
All rights reserved.
WIKA
is a registered trademark in various countries.
®
Prior to starting any work, read the operating instructions!Keep for
later use!
WIKA Alexander Wiegand SE & Co. KG
Alexander-Wiegand-Straße 30
63911 Klingenberg • Germany
Tel.
+49 9372 132-0
Fax
+49 9372 132-406
info@wika.de
www.wika.de
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Table of Contents
Related Manuals for WIKA FSFD
Summary of Contents for WIKA FSFD
- Page 1 6. Faults 7. Maintenance and cleaning 8. Dismounting, return and disposal 9. Specifications Declarations of conformity can be found online at www.wika.com. © 04/2022 WIKA Alexander Wiegand SE & Co. KG All rights reserved. WIKA is a registered trademark in various countries.
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Page 2: General Information
1. General information 2.2 Description The model FSFD is a vane-type flow switch for use in wet sprinkler systems. Water flow The flow switch described in the operating instructions has been designed and in the pipe moves the vane which generates a switching output, typically after a set ■... -
Page 3: Intended Use
3.2 Intended use 3.4 Personnel qualification The model FSFD was developed to detect flow in wet sprinkler systems once the WARNING! sprinkler has been triggered. The pneumatic time delay can be adjusted on-site between Risk of injury should qualification be insufficient! 0 ... -
Page 4: Packaging And Storage
NFPA 25: Inspection, testing and maintenance of sprinkler systems, section 5.3.3.2 ■ or jam against the inside of the pipe. Other applicable NFPA guidelines, local regulations and requirements of the compe- ■ tent authority WIKA operating instructions, flow switch, model FSFD... -
Page 5: Mechanical Mounting
Set the delay to the minimum required to avoid a false alarm due to water surges. ■ The areas marked in red must not be adjusted/opened. ■ Time delay Display of the time delay indication Time delay adjust- Time delay ment dial adjuster WIKA operating instructions, flow switch, model FSFD... -
Page 6: Electrical Mounting
Ensure that there is no longer any pressure present and the load circuit is switched off and protect it against being put into operation accidentally. ▶ Contact the manufacturer. If a return is needed, please follow the instructions given in chapter 8.2 “Return”. WIKA operating instructions, flow switch, model FSFD... -
Page 7: Maintenance And Cleaning
Observe the information in the material safety data sheet for the corresponding 7.1 Maintenance medium. Inspect the instrument every month. ▶ Dismount the instrument when the flow is interrupted. There is no specific maintenance required, only a regular check and inspection. WIKA operating instructions, flow switch, model FSFD... -
Page 8: Specifications
Compatible pipes Strictly observe the following when shipping the instrument: Model Nominal Outer Wall thickness All instruments delivered to WIKA must be free from any kind of hazardous substances pipe size diameter in Light-weight Schedule Schedule 40 (acids, bases, solutions, etc.) and must therefore be cleaned before being returned.
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