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8.2. Maintenance
8.2.1. Check valve
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 outlet1215
4. Replace check valve
5. Slowly open shut off valves on inlet and outlet
10. Troubleshooting
Disturbance
No or too small water flow rate
Beating sounds
Honeywell GmbH
GB
9. Disposal
• Brass housing
• High grade synthetic material check valve cartridge
• Closing spring made of stainless spring steel
• Test plugs in high grade synthetic material
• NBR seal ring
Cause
Stop valve in front of or below the check
valve is not fully opened
The check valve is over-dimensioned
5
Observe the local requirements regarding correct waste
recycling/disposal!
Remedy
Open shutoff valves
Call Technical Customer Service
MU1H-1228GE23 R1215
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