CHART Trifecta Pro Series, Product Manual

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Service 44 Product Manual - Trifecta
®
Pro Series
• Solenoid failure
The most common symptoms of these failures and their
remedies are described in the following sections:
Non-Energizing Solenoid
The PLC sends a signal to the solenoid to energize the coil
during a particular operation of the Trifecta Pro Series When
this signal is sent from the PLC, The solenoid valve shown
on the HMI Screen turns green If the solenoid turns green
but the solenoid is not energized and does not open, check
for loose wiring and voltage at the valve with a multi-meter
If there is power at the valve and the valve does not open,
the coil will need to be replaced If there is not power at
the valve, trace wiring back to find out where disconnect
is occurring Contact www chartparts com for replacement
parts
Contaminants on Solenoid Seat
If the solenoid appears to be leaking, there are most likely
contaminants on the seat of the piston The seat or piston
may also be damaged. In this case, remove the piston and
replace Also verify that the strainer is in place and replace if
it has been six months prior to last replacement
Moisture in Solenoid
Solenoid should be allowed to thaw. Once thawed, moisture
may be removed from solenoid upon next use via the flow of
new gas
Solenoid Failure
If none of the above improves the situation, there has been
a catastophic failure within the solenoid coil The entire
solenoid must be replaced
Leaking Components
If the leak cannot be fixed via tightening or re-plumbing a
component, a new component will have to be fitted. Refer to
the Preventive Maintenance section of this manual to locate
the description and part number of this component
Note: All replacement fittings should be cleaned
for oxygen service. Refer to replacement
part section for Chart part numbers for all
plumbing components.
Repairs
Note: Any time plumbing is removed from the
Trifecta Pro Series system, take care not
to allow any moisture to enter the system.
This moisture can freeze and cause check
valves and control valves to stick. Critical
lines can freeze causing incorrect level and
pressure readings.
Check Valve Leaking
If you find that there is a leaking check valve, the Trifecta
Pro Series will have to be emptied and depressurized The
check valve should then be replaced Replacement parts
can be found in the Preventive Maintenance section on this
manual and ordered on www chartparts com
Solenoids
If the solenoid appears to be malfunctioning, it could be for
a few reasons:
• PLC is not sending signal to energize the solenoid
• Contaminants on solenoid seat
• Moisture in solenoid