Disposal - Buderus 7738306430 Instrucciones De Montaje

9.1.2. Filter
Interval: every 2 months
• The filter must be cleaned by reverse rinsing regularly, at
the latest every 2 months
• Non-compliance can lead to the filter becoming blocked
This results in a drop in pressure and decreasing water
flow
• The filter meshes are made of stainless steel. A red
coating as a consequence of rust from the pipelines has no
influence on function or the way the filter works
Do not forget to do a visual check of the ball valve.
Replace if it is dripping!
9.2. Maintenance
9.2.1. Pressure reducing valve (filter combinations only)
Frequency: every 1-3 years (depending on local opera-
ting conditions)
To be carried out by an installation company
1. Close shutoff valve on inlet
2. Close shutoff valve on outlet
3. Release pressure on outlet side (e.g. through water tap)
Caution !
There is a spring in the spring bonnet. It may cause inju-
ries if the spring is derailing.
• Make sure tension in compression spring is slak-
kened!
4. Slacken tension in compression spring
• Lift adjustment handle
• Turn adjustment handle counter clockwise (-) until it
does not move any more
5. Loosen cover cap with a screw driver
6. Pull out the adjustment handle
7. Unscrew spring bonnet
• Use plastic wrench 7738309061
8. Remove spring and setting unit
9. Remove slip ring
10. Remove valve insert with a pair of pliers
11. Unscrew filter bowl
• Use plastic wrench 7738309061
12. Pull guide piece with O-ring out downwards
13. Remove slotted ring
14. Check that sealing ring, edge of nozzle and slotted ring
are in good condition, and if necessary replace the entire
valve insert
15. Reassemble in reverse order
Before inserting the cover hood, make sure the square
cut-out (hood) is aligned with the square drive (spindle).
Press in diaphragm with finger before inserting slip ring
Screw in spring bonnet (30Nm)
Put O-ring on filter bowl
Screw in filter bowl hand-tight (without tools)
16. Set outlet pressure
6720803833
en
9.3. Cleaning
If necessary, the filter bowl and the filter can be cleaned.
Caution !
Use only cold, clear drinkink water to clean the
surfaces.
Frequency: every 6 month (depending on local opera-
ting conditions)
To be carried out by an installation company
1. Close shutoff valve on inlet
2. Close shutoff valve on outlet
3. Release pressure on outlet side (e.g. through water tap)
4. Unscrew filter bowl
• Use plastic wrench 7738309061
5. Remove filter, clean and reinsert
6. Put O-ring on filter bowl
7. Screw in filter bowl hand-tight (without tools)
8. Slowly open shutoff valve on inlet
9. Slowly open shutoff valve on outlet

10. Disposal

• High quality synthetic material housing
• Brass threaded connections
• Synthetic material spring bonnet , valve insert and filter
mesh carrier (filter combinations only)
• Dezincification resistant brass connector piece (filter
combinations only)
• Stainless steel fine filter
• Shock-resistant, clear transparent synthetic material filter
bowl
• NBR seals
Observe the local requirements regarding correct waste
recycling/disposal!
11 2012/05