Maintenance; Disposal; Spare Parts; Accessories - Resideo Braukmann R295P-F Einbauanleitung

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.
In accordance with EN 806-5, the following measures must
be taken:
5.1 Inspection
5.1.1 Testing of function
• Close the valve 
• Relieve the pressure in the isolated section through
the small drain off valve 
• Visually check that the backflow preventer goes to the
flow position - Green spring bonnet is not visible
• If the backflow preventer does not go to the shut-off
position, check hydraulically actuated changeover
valve, the valve insert, seal disc and seals and replace
them if necessary
5.1.2 Checking for seal
• Visually check that no water is emitted when backflow
preventer is in the flow position (Green spring bonnet
is not visible)
• If water comes out, check the valve insert, seal disc
and seals and replace them if necessary
5.1.3 Checking the safety function
• Open an outlet which is downstream of the backflow
preventer
• Reduce the inlet pressure to the backflow preventer
by slowly closing a shut-off valve on the inlet side.
The backflow preventer must then go to the flow
position at the set pressure indicated on the rating
plate.
• The set pressure must be checked by connecting a
pressure measuring device between the outlet and
the backflow preventer
• If the backflow preventer does not go to the shut-off
position, check hydraulically actuated changeover
valve, the valve insert, seal disc and seals and replace
them if necessary
These inspections and tests should be carried out at least
once a year by the user or by a specialist. Depending on
operating conditions, it may be necessary to carry out these
tests and inspections more frequently.
5.2 Maintenance
5.2.1 Replace valve insert
1. Close valves  and 
2. Relieve pressure from valve (for example by opening
drain valve  )
MU1H-1211GE23 R0320
GB
3. Loosen spring bonnet  by turning anticlockwise and
remove it
4. Loosen flange fitting 
5. Take out complete valve insert  and seal
valve insert and seal for good condition and if
necessary clean or replace
6. Insert seal plus valve insert and tighten flange
⑪
fitting 
7. Replace spring bonnet  and tighten by turning
clockwise
8. Slowly open shut-off valve 
9. Slowly open shut-off valve  and fill and vent the
system
5.2.2 Replace seal disc (14) and lip seal
ring (19)
1. Close valves  and 
2. Relieve pressure from valve (for example by opening
drain valve  )
3. Completely remove backflow preventer from pipework
4. Loosen flange fitting
housing
⑬
WARNING!
There is a risk of injury, because inner components
can spring out.
5. Remove seal disc
necessary clean or replace
6. Replace lip seal ring
7. Fully reassemble connection housing
8. Refit backflow preventer into the pipework
9. Slowly open shut-off valve 
10. Slowly open shut-off valve  and fill and vent the
system
5.2.3 Replace seals
1. Close valves  and 
2. Relieve pressure from valve (for example by opening
drain valve  )
3. Remove valve insert  and replace seal
4. Loosen flange fitting
5. Remove discharge tundish
and replace seals 
6. Unscrew blanking plug
7. Slowly open shut-off valve 
8. Slowly open shut-off valve  and fill and vent the
system
6

Disposal

Observe the local requirements regarding correct waste
recycling/disposal!
7

Spare Parts

For Spare Parts visit homecomfort.resideo.com/europe
8

Accessories

For Accessories visit homecomfort.resideo.com/europe
5
. Check
⑪
and remove connection
⑫
and check for good condition. If
⑭
⑲
⑪
⑯
and inner components
⑮
and replace seals
⑰ ⑱