Installation Sheet

FAULT / SYMPTOM
CAUSE
RECTIFICATION
1. The desired mixed
water temperature
cannot be obtained or
valve is difficult to set.
Refer also to point 1.
4. No flow from the valve
outlet.
5. Flow rate reduced or
fluctuating.
6. Mixed water temper-
ature does not change
when temperature
ajuster is altered.
7. Hot water flows into
the cold water system
or vice versa.
8. Valve is noisy.
● Inlet temperatures are
not within specific
limits.
● Hot and cold supplies
are reversed.
● Ensure inlet temperatures are
within the specified limits for
the valve.
● Refit the valve with Hot/Cold
supplies fitted to the correct
connections.
● Fluctuating supply
pressures.
● Install pressure regulating
valves on hot and cold
supplies.
● Valve is incorrectly set.
● Hot and cold supplies
are reversed.
● Debis in check valves
or check valves not
working.
● Hot or cold water
supply failure.
● Restore inlet supplies and
check mixed temperature.
● Fluctuating supply
pressures.
● Install pressure regulating
valves.
● Hot and cold supplies
are reversed.
● Refit the valve with Hot/Cold
supplies fitted to the correct
connections.
● Debris in check valves
or check valves not
working.
● Remove check valves and clear
debris - replace if necessary.
● Excessive water
velocity.
● Valve sized incorrectly.
● Reduce water velocity (best
achieved by fitting a pressure
regulating valve).
● Check valve specifications and
ensure the appropriate valve is
used for required flow.
I0520
2. Mixed temperature is
unstable or changing
over time.
3. Either full hot or full
cold water flowing from
outlet fixture.
● Adjust mix temperature as
required.
● Refit the valve with the Hot/
Cold supplies fitted to the
correct connections.
● Remove check valves and clear
debris - replace if necessary.
206804 Rev. A
11