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Honeywell GmbH
5
MU1H-1228GE23 R1215
GB
8.2. Maintenance
8.2.1. Check valve
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
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
To be carried out by an installation company
Observe the local requirements regarding correct waste
recycling/disposal!
10. Troubleshooting
Disturbance
Cause
Remedy
No or too small water flow rate
Stop valve in front of or below the check
valve is not fully opened
Open shutoff valves
Beating sounds
The check valve is over-dimensioned
Call Technical Customer Service