19
Aquablend 2500 Thermostatic Mixing Valve
Call 1300 369 273
www.enware.com
FAULT /
SYMPTOM
CAUSE
RECTIFICATION
Either full hot
or cold flowing
from outlet
fixture
• Valve is incorrectly
set.
• Hot/Cold water
has migrated to
other inlet.
• Refer also to fault/
sympton 1 & 2
• Adjust mix temperature
between 35 - 50°C as
required.
• Replace faulty nonreturn
valves (ATMS312).
No flow from
the valve outlet
• Hot or cold water
failure.
• Strainers are fouled
• Valve functioning
correctly. Restore inlet
supplies and check mix
temperature.
• Clean strainers.
Flow rate
reduced or
fluctuating
• Valve or inlet
fittings fouled by
debris.
• Dynamic inlet
pressures are not
within recommended
limits.
• Check valve and inlet
fittings for blockages.
• Ensure operating
conditions are within
specified limits and the
dynamic inlet pressures
are nominally balanced to
/- 10%.
Mixed water
temperature
too hot or cold
• Valve has been
tampered with.
• Valve incorrectly
set.
• Inlet temperatures
are not within
specified limits.
• Readjust valve to required
set temperature.
• Readjust valve to required
set temperature.
• Ensure inlet temperatures
are within the specified
limits as listed in Sect 5.
Warm water
temperature
doesn’t
change when
temperature
adjuster is
altered
• Return spring is
missing
• Thermostatic
element has failed
• Install return spring
(ATMS311).
• Replace thermostatic
element (ATMS306).
Warm water
temperature
adjuster difficult
to move
• Adjuster at
maximum mix
temperature stop.
• Valve piston into
overstroke
• Mixed water is at
maximum temperature.
No higher mix temperature
adjustment is available.
• Wind adjuster out until
set temperature
required is achieved.
Summary of Contents for AQUABLEND 2500
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