Honeywell SG160S Notice De Montage page 10

Vanne de securite combinee
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9. Maintenance
DIN 1988, Part 8 specifies that the following operations
be carried out regularly.
A scheduled maintenance scheme is recommended.
9.1. Inspection
9.1.1. Pressure reducing valve
Interval: once a year
1. Close shutoff valve on outlet
2. Check outlet pressure using a pressure meter when there
is zero through-flow
• If the pressure is increasing slowly, the valve may be
dirty or defective. In this instance, carry out servicing
and cleaning
3. Slowly open shutoff valve on outlet
9.1.2. Check valve
Interval: once a year
1. Close shutoff valve on inlet
2. Remove test cockcovers of check valve
3. If not watertight, close shutoff valve on outlet
4. Unscrew sealing plug
5. Remove and exchange check valve
6. Mount sealing plug
• Check thread
7. Reassemble in reverse order
8. Slowly open shut off valves on inlet and outlet
9.1.3. Safety valve
Frequency: every 6 month
1. Actuate lifting device
2. Release lifting device
• Shut-off valve closes
• available water flows completely off
Malfunction:
1. Actuate lifting device multiple times, if necessary initiate
repairs
9.2. Maintenance
9.2.1. Pressure reducing valve
Frequency: every 1-3 years (depending on local
operating conditions)
To be carried out by an installation company
1. Close shutoff valve on inlet
2. Release pressure on outlet side (e.g. through water tap)
3. Close shutoff valve on outlet
4. Loosen slotted screw
• Do not remove slotted screw
Caution !
There is a spring in the spring bonnet. It may cause
injuries if the spring is derailing.
• Make sure tension in compression spring is slak-
kened!
Honeywell GmbH
GB
5. Slacken tension in compression spring
• Turn adjustment handle counter clockwise (-) until it
does not move any more
6. Unscrew spring bonnet
• Use double ring wrench ZR06K
7. Remove slip ring
8. Remove valve insert with a pair of pliers
9. Unscrew filter bowl
• Use double ring wrench ZR06K
10. Remove slotted ring
11. Check that sealing ring, edge of nozzle and slotted ring
are in good condition, and if necessary replace the entire
valve insert
12. Remove filter, clean and reinsert
13. Place O-ring onto filter bowl
14. Reassemble in reverse order
Press in diaphragm with finger before inserting slip ring
Screw in filter cup hand-tight (up to max. 18Nm)
15. Set outlet pressure and adjust setting scale
9.2.2. Check valve
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 sealing plug
5. Remove and exchange check valve
6. Mount sealing plug
• Check thread
7. Slowly open shut off valves on inlet and outlet
9.3. Adjusting the setting scale
If the adjustment knob is removed, this setting is lost. A new
setting can be achieved using a pressure gauge.
1. Close shutoff valve on inlet
2. Release pressure on outlet side (e.g. through water tap)
3. Close shutoff valve on outlet
4. Fit pressure gauge
5. Loosen slotted screw
• Do not remove slotted screw
6. Slowly open shutoff valve on inlet
7. Set desired outlet pressure (e.g. 4 bar)
8. Align scale (e.g. 4) in middle of viewing window
9. Retighten slotted screw
10. Slowly open shutoff valve on outlet
10
MU1H-1346GE23 R1014

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