resideo Braukmann BFW112 Systemtrenner User Manual

Resideo Braukmann BFW112 Systemtrenner User Manual

1 Safety Guidelines

1. Follow the installation instructions.

2. Use the appliance
   • according to its intended use
   • in good condition
   • with due regard to safety and risk of danger.

3. Note that the appliance is exclusively for use in the applications detailed in these installation instructions (see 2 Technical Data). Any other use will not be considered to comply with requirements and would invalidate the warranty.

4. Please take note that any assembly, commissioning, servicing and adjustment work may only be carried out by authorized persons.

5. Immediately rectify any malfunctions which may influence safety.

2 Technical Data

Note:
The mobile backflow preventer BFW112 in accordance with DIN 14346 is connected to existing standpipes or pillar hydrants to take water for fire fighting from the pipeline network. It prevents water from flowing back into the drinking water supply network as a result of back siphon age or back pressure, if the pressure in this network is lower than that in the pipeline laid for firefighting purposes.

Note:
In addition, pressure surges do not occur in the network, which helps to prevent burst pipes.

3 Options

For Options visit homecomfort.resideo.com/Europe

4 Assembly

4.1 Installation Guidelines

• Note flow direction
• Use both handles when assembling on hydrant/standpipe
• Ensure that parts are free of dirt
• Store in a clean and dry place
• These armatures need to be maintained regularly

4.2 Assembly instructions

1. Thoroughly flush hydrant / standpipe
2. Check that backflow preventer connections are clean
3. Assemble backflow preventer
   Position backflow preventer and, using both handles, rotate it and the counter coupling on the hydrant/standpipe to connect Note flow direction (indicated by arrow)

5 Maintenance

In order to comply with EN 806-5, water fixtures must be inspected and serviced on an annual basis. As all maintenance work must be carried out by an installation company, it is recommended that a servicing contract should be taken out.

5.1 Inspection

The backflow preventer must undergo regular visual inspections every 3 months at the latest. The following must be checked:

• State of the coupling
• Dirt accumulation
  —­ Stone trap
  —­ ­ Dust and fall protection
  —­ Drainage holes
  —­ Interior workings
  If dirt has accumulated, clean with clear water without the addition of detergents. If any parts are damaged carry out a maintenance.

5.2 Maintenance

Do not use any cleansers that contain solvents and/or alcohol for cleaning the plastic parts, because this can cause damage to the plastic components – water damage could result. Detergents must not be allowed to enter the environment or the sewerage system! Interval: every 12 months See chapter 10 Maintenance Report

Test set-up
Mount the backflow preventer in the testing equipment. Open all the valves, to bleed the system. Close valve 3. Check that the backflow preventer is sealed.

5.2.1 Inspection of check valve on input side

1. Close valve 2
2. Wait 10 seconds and observe the differential pressure. If it is constant, the check valve is airtight. Make a note of the differential pressure If the differential pressure = 0, the seal on the input side is damaged or soiled. Follow the instructions in chapter 5.2.3 Maintenance.

5.2.2 Inspection of discharge valve

1. Close valve 2
2. Close valve 1
3. Slowly open valve 3 and observe the differential pressure. The discharge valve must respond (begin to drop) before the differential pressure exceeds 0.14 bar. Make a note of the differential pressure at which the discharge valve responds (drops).

If the differential pressure is <0.14 bar at the response moment, follow the instructions in chapter 5.2.3 Maintenance.

5.2.3 Maintenance

Note: For exploded drawing see chapter 11

1. Fix the backflow preventer on the key area of the housing and open the cover on the output side with the help of a tape puller
2. Remove the springs and piston
3. Clean all interior parts and the running surface with clear water and check that they are in good condition.
4. If necessary, exchange all seals and pistons. When dismantling, ensure that the sealing faces in the base of the groove are not damaged.
5. Lightly grease the seals.
6. Reassemble in reverse order.
7. Carry out points in chapter 5.2.1 Inspection of check valve on input side and chapter 5.2.2 Inspection of discharge valve for inspection.

6 Disposal

Observe the local requirements regarding correct waste recycling/disposal!

7 Troubleshooting

8 Spare Parts

For Spare Parts visit homecomfort.resideo.com/Europe

9 Accessories

For Accessories visit homecomfort.resideo.com/Europe

10 Maintenance Report

Manufactured for and on behalf of Pittway Sàrl, Z.A., La Pièce 4, 1180 Rolle, Switzerland

For more information
homecomfort.resideo.com/Europe
Ademco 1 GmbH, Hardhofweg 40, 74821 MOSBACH, GERMANY
Phone: +49 6261 810
Fax: +49 6261 81309
Subject to change. MU1H-1264GE23 R0520

© 2020 Resideo Technologies, Inc. All rights reserved.

References

• Comfort Europe from Resideo
• Comfort Europe from Resideo

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>