CALEFFI 523190A Installation, Commissioning And Service Instructions - Page 8
Browse online or download pdf Installation, Commissioning And Service Instructions for Control Unit CALEFFI 523190A. CALEFFI 523190A 9 pages. Low lead high-flow thermostatic mixing valves
Also for CALEFFI 523190A: Installation And Commissioning Manual (13 pages)
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Troubleshooting
Under normal operating conditions the Caleffi 5231 series thermostatic mixing valve will provide a
very high level of performance. However, in some circumstances, where our maintenance plan is not
followed, the following problems may arise.
Symptom
Hot water at the cold taps
Fluctuating mixer water
temperature
Erratic flow of water from
the valve
No flow of water from
the valve
Cause
a) Operation of check valve
is hindered; check valve is
not sealing correctly
b) Check valves not fitted
a) Erratic supply
temperatures at the inlets
of the valve
b) Starvation of the water
supplies at the inlets of
the valve
c) Incorrect commissioning
of the valve
a) Insufficient water supplies
b) Fluctuations in supply
pressures/temperatures
c) Adverse effect created by
other draw off points on
the system
a) In-line filters blocked
b) Insufficient supply
pressures
c) Debris obstructing
valve operation
Corrective action
• R eplace faulty check valves
• R estore inlet conditions
within the limits of the valve
• S tabilize inlet supply
conditions
• C lean filters
• R estore inlet supplies
• C lean debris or scale
from valve
Caleffi North America, Inc.
3883 West Milwaukee Road
Milwaukee, WI 53208
T: 414.238.2360 F: 414.238.2366
04-30-15