CALEFFI SinkMixer Instrukcja instalacji i uruchomienia - Strona 12
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Troubleshooting
Under normal operating conditions the Caleffi 5212 series thermostatic mixing valve will provide a
very high level of performance. However, in some circumstances, when the included maintenance
plan is not properly performed, the following problems may arise.
Sympton
Hot water at the cold faucets a) Inserted check
Fluctuating mixed water
temperature
Erratic flow of water from
the valve
No water flowing from the
valve
Cause
operation failed.
b) Check valves not
installed.
a) Erratic supply
temperatures at the
valve inlets.
b) Starvation of the
water supplies at the
valve inlets.
c) Incorrect
commissioning of the
valve.
a) Insufficient water
supplies.
b) Fluctuations in
supply pressure and/
or temperatures.
c) Adverse effect
created by other
draw-off points on the
system.
a) In-line strainers
blocked.
b) Insufficient supply
pressures.
c) Debris obstructing
valve operation.
12
Corrective action
Replace faulty check valves.
Restore inlet conditions within the
limits of the valve.
Stabilize inlet supply conditions.
a) Clean or replace strainers.
b) Restore inlet supplies.
c) Clean debris or scale from valve
internals.
Caleffi North America, Inc.
3883 West Milwaukee Road
Milwaukee, WI 53208
T: 414.238.2360 F: 414.238.2366
03-16-2020