Braukmann
Einbauanleitung
Installation instructions 
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Systemtrenner
Backflow Preventer
Safety Guidelines
- Follow the installation instructions.
- Use the appliance
• according to its intended use
• in good condition
• with due regard to safety and risk of danger. - Note that the appliance is exclusively for use in the applications detailed in these installation instructions. Any other use will not be considered to comply with require-
ments and would invalidate the warranty. - Please take note that any assembly, commissioning, servicing and adjustment work may only be carried out by authorized persons.
- Immediately rectify any malfunctions which may influence safety.
Description of function
BA-type backflow preventers are divided into three pressure zones. The pressure in the zone
is higher than in the zone
, which in turn is higher than in the zone. A discharge valve is connected to a zone
that opens at the latest when the differential pressure between zones and drops to 0.14 bar. The water from the zone
discharges to the atmosphere, both check valves close and therefore separate the zone
from the zone
and
. In this way, the danger of back pressure or back siphonage into the supply network is prevented. The pipe-work connection is interrupted and the drinking water network s protected.
3. Application
Medium.Water
Maximum inlet pressure 10.0 bar
Minimum inlet pressure 1.5 bar
Technical data
| Installation position | Horizontal with discharge valve downwards |
| Max. operating temperature | 65°C |
| Discharge pipe connection | DN 40 |
| Nominal diameter | DN 10 |
| Connection size | 1/2″, 3/4″ |
Scope of delivery
The backflow preventer consists of:
- Housing
- Valve cartridge with integral check valve and discharge valve
- Integral sieve on the inlet
- Outlet check valve
- Discharge connection
- Check ball valves
Options
BA095-3/8E = Standard version with external threads 1/2″ on housing
BA095-3/8EZ = Special version with external threads 3/4″ on housing
Assembly
7.1. Installations Guidelines
- Install shutoff valves before and after backflow preventer• Install in horizontal pipework with the discharge valve downwards
- Ensure good access – Simplifies maintenance and inspection
- If a fine filter is not installed in the drinking water system, the installation of a filter with a mesh width of 100µ m is recommended in front of the backflow preventer.
- In the case of fluctuating pre-pressure or an input pressure over 10 bar, we recommend the insertion of a pressure regulator in front of the backflow preventer.
- Do not install in places where flooding can occur
- The installation environment should be protected against frost and ventilated well
- Install discharge pipework that has adequate capacity
- Thoroughly flush pipework
Assembly instructions
- Thoroughly flush pipework
- Install a backflow preventer
• Mount dirt strainer on the input side
• Install in horizontal pipework with discharge connection directed downwards
• Note flow direction (indicated by arrow)
• Install without tension or bending stresses
• Provide a straight section of pipework of at least five times the nominal valve size after the backflow preventer - Attach drain pipe to discharge connection (plastic pipe HT 40)
- The appliance is ready for use
Maintenance
We recommend taking out a servicing contract with an installation firm
Maintenance of the backflow preventer must be carried out by authorized personnel!
Inspection
Frequency: every 6 months (depending on local operating conditions)
To be carried out by an installation company
Inspection with a test control unit and maintenance set (see accessories)
8.1.1. Testing discharge valve
Take note of the instructions of the test control unit TKA295 or TK295
1. Procedure according to the instruction of the test control unit
TKA295 resp. TK295
TKA295 resp. TK295
Quick test for the discharge valve:
• Lower the inlet pressure – if the discharge valve opens (it drops), the function is o.k.
8.1.2. Testing outlet check valve
Take note of the instructions of the test control unit TKA295 or TK295
1. Procedure according to the instruction of the test control unit TKA295 resp. TK295
8.2. Maintenance
We recommend taking out a servicing contract with an installation firm
In accordance with DIN EN 1717, regular maintenance must be taken.
Interval: once a year
To be carried out by an installation company
8.2.1. Cartridge insert
- Close shutoff valve on the inlet
- Release pressure on the outlet side (e.g. through water tap)
- Close shutoff valve on the outlet
- Remove discharge connection
- Remove retaining ring
- Replace cartridge insert and lip seal
Don’t disassemble the cartridge insert to individual parts! - Reassemble in reverse order
• push down the cartridge insert till it snaps in - Test function (see chapter inspection)
8.2.2. Check valve
- Close shutoff valve on the inlet
- Release pressure on the outlet side (e.g. through water tap)
- Close shutoff valve on the outlet
- Unscrew the plug
- Remove retaining ring
- Remove and exchange
check valve The check valve will be destroyed after demounting - Reassemble in reverse order
- Test function (see chapter inspection)
8.3. Cleaning
To be carried out by an installation company or the operator.
Do not use any cleaning agents containing solvents and/or alcohol to clean the plastic parts!
Detergents must not be allowed to enter the environment- mentor the sewerage system!
8.3.1. Cartridge insert
If necessary, the cartridge insert can be cleaned.
- A close shutoff valve on the inlet
- Release pressure on the outlet side (e.g. through water tap)
- A close shutoff valve on the outlet
- Remove discharge connection
- Remove retaining ring
- Clean or replace cartridge insert and lip seal
Don’t disassemble the cartridge insert into individual parts! - Reassemble in reverse order
• push down the cartridge insert till it snaps in - Test function (see chapter inspection)
8.3.2. Sieve
If nesseccary, the filter can be cleaned.
- A close shutoff valve on the inlet
- Release pressure on the outlet side (e.g. through water tap)
- A close shutoff valve on the outlet
- Unscrew the pipeline on the input side
- Remove filter, clean, and reinsert
- Montage dans l’ordre inverse
Disposal
- Brass housing
- High-quality synthetic material valve cartridge
- High-grade synthetic material check valve
- Sealing elements made of elastomer materials suitable for drinking water
- High-quality synthetic material discharge connection
Observe the local requirements regarding correct waste recycling/disposal!
Troubleshooting
| Problem | Cause | Remedy |
| The discharge valve opens without apparent reason | Pressure strokes in water supply system | Install a pressure reducing valve upstream the backflow preventer |
| Fluctuating inlet pressure | Install a pressure reducing valve upstream the backflow preventer | |
| Cartridge insert is contaminated | Remove cartridge insert and exchange it | |
| The discharge valve don’t close | Deposits on the valve seat | Remove cartridge insert and clean or exchange it |
| Damaged ’ring | Remove cartridge insert and exchange it | |
| Leaky discharge valve | Remove cartridge insert and clean or exchange it | |
| Flow is too low | The inlet strainer is blocked | Remove strainer and clean it |
Spare Parts 
| No. Description | Dimension Part No. |
| 1 Cartridge insert complete | 3/4″ KE195 |
| 2 Check valve insert complete 3/8″ | RVE095 |

TK295 Test kit
Electronic pressure measuring device with digital indicator, battery-operated.
With case and accessories, ideal for inspection and maintenance of backflow preventer type BA.
TKA295 Test kit
Analog pressure measuring device with differential pressure display.
With case and accessories, ideal for inspection and maintenance of backflow preventer type BA.
WS195 Maintenance-set
Maintenance-set for backflow preventers for use with Test kit TK295 resp. TKA295 

Ademco 1 GmbH
Hardhofweg 40
74821 Mosbach
Phone: +49 1801 466 388
info.[email protected]
homecomfort.resideo.com
@2020 Resideo Technologies,
Inc. All rights reserved. This product is manufactured by Resideo Technologies, Inc and its affiliates.




















