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STEP 4 -
1.
Replace the cap to deter tampering.
ÉTAPE 4 -
1.
Remettez le capuchon pour éviter les manipulations non souhaitées.
PASO 4 -
1.
Cambie el mando para disuadir a manipulación.
FAULT / SYMPTOM
1. The desired mixed water temperature cannot be
obtained or valve is difficult to set.
2. Mix temperature unstable or changing over time.
3. Either full hot or full cold water flowing from outlet
fixture.
4. No flow from the valve outlet.
5. Flow rate reduced or fluctuating.
6. Mixed water temperature does not change when
temperature adjuster is altered.
7. Hot water flows into the cold water system or vice
versa.
8. Valve is noisy.
Recommend to the client that the valve is checked annually to ensure its continued function.
Troubleshooting
Dépannage
Solución de problemas
CAUSE
Inlet temperatures are not within specific limits.
-
Hot and cold supplies are reversed.
-
Strainers are blocked
-
Supply pressures out of specification (permitted
-
supply variation +/ 20%)
Strainers are blocked.
-
Fluctuating supply pressures.
-
Valve is incorrectly set.
-
Hot and cold supplies are reversed
-
Hot/Cold water has migrated to other inlet.
-
Refer also to point 1.
-
Hot or cold water supply failure.
-
Strainers are blocked.
-
Strainers are blocked.
-
Fluctuating supply pressures.
-
Non return valves fouled.
-
Excessive water velocity.
-
Valve sized incorrectly.
-
Page 6 - 9
214844, Rev B
Figure 4
Ensure inlet temperatures are within the specified
-
limits for the valve.
Refit the valve with Hot/Cold supplies fitted to the
-
correct connections.
Clean strainers.
-
Install PRVs to bring supplies within specification
-
Clean strainers.
-
Install pressure regulating valves on both hot and
-
cold supplies.
Adjust mix temperature as required.
-
Refit the valve with Hot/Cold supplies fitted to the
-
correct connections.
Check non return valve is not fouled. Clean if
-
necessary.
Restore inlet supplies and check mix temperature.
-
Clean strainers.
-
Clean Strainers.
-
Install pressure regulating valves.
-
Contact customer service.
-
Clean non returns ensuring debris is removed.
-
Reduce water velocity (best achieved by fitting a
-
pressure regulating valve).
Check valve specifications and ensure the
-
appropriate valve is used for required flow.
RECTIFICATION
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