14
MX 102 - MX110 User Guide
6.
Troubleshooting guide
In the unlikely event that a problem occurs on the equipment, this troubleshooting guide can be used to identify the probable cause
and remedy.
Warning
Troubleshooting should only be attempted by competent personnel. All major repair, and calibration work should be
undertaken by a domnick hunter trained, qualified and approved engineer.
Problem
Possible cause
Action Required.
Poor dewpoint identified by water in the
downstream piping and equipment.
Dryer is operating outside of its sizing
criteria.
Check actual inlet parameters and
environmental conditions against the
values quoted at the time of sizing.
Bypass valve is open.
Check bypass valve is fully closed.
Dryer has recently been started.
Allow time for the system to “dry down”
The condensate is not being drained.
Check the condensate drain(s) for faults.
Check the drain hoses are free from kinks and
obstructions.
Ensure that the drain isolation valves
are fully open.
Regeneration column pressure > 350mbar.
Replace the exhaust silencers.
Timer malfunction.
Contact domnick hunter approved
service agent.
Valve malfunction.
Contact domnick hunter approved
service agent.
Desiccant is approaching the end
of its useful life.
Contact domnick hunter approved
service agent.
High pressure drop resulting in low pressure
gauge readings or intermittent operation of
the downstream equipment.
The pre / after filtration is approaching the
end of its operational life.
Check and replace.
The dryer is being overflowed or is
operating at a reduced system pressure.
Check actual inlet conditions against the values
quoted at the time of sizing.
An isolation valve is partially closed.
Check the position of all the isolation valves.
Pressure loss from the system.
Check the system for leaks.
Ensure that the drain cocks and
pressure relief valves are closed.
The dryer tripped due to power
supply interruption to the dryer.
Check that the dryer “POWER ON”
indicator is illuminated. If it is not
check the isolator and fuses.
The compressor tripped due to power
supply interruption to the compressor.
Check that the compressor “POWER
ON” indicator is illuminated. If it is not
check the isolator and fuses.
Isolation valve closed
Check the position of the isolation valves.
Interruption of the air supply downstream
leading to a rapid loss of system pressure.
Compressor switched off.
Check the compressor.
Fault shutdown event.
Check the dryer fault indicators.
Summary of Contents for Pneudri Maxi MX102c
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