CHART Trifecta XPro Series - Solenoids; Non-Energizing Solenoid; Contaminants on Solenoid Seat; Moisture in Solenoid

41
ServiceProduct Manual - Trifecta
®
XPro Series
Solenoids

a few reasons:
• PLC is not sending signal to energize the solenoid
• Contaminants on solenoid seat
• Moisture in solenoid
• 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 XPro Series.

panel lights up. If the LED lights up but the solenoid is not

voltage at the valve with a multi-meter. If there is power at

be replaced. Contact www.chartparts.com for replacement
parts.
Contaminants on Solenoid Seat

contaminants on the seat of the piston. The seat or piston

replace. Also verify that the strainer is in place and replace if
it has been six months prior to last replacement.
Moisture in Solenoid


new gas.
Solenoid Failure

a catastophic failure within the solenoid coil. The entire
solenoid must be replaced.
Leaking Components


the Preventive Maintenance section of this manual to locate
the description and part number of this component.
Note: 
for oxygen service. Refer to replacement
part section for Chart part numbers for all
plumbing components.
Pressure and Liquid Level
Transmitters
1. 
to verify the circuit has zero leaks. The sensor error


“F6” will display in the error code section of the PLC if
a pressure or liquid level transmitter is out of range. See
the Service section of this manual for Error Codes.
2. 
3. If all connections are made and the error condition does

4. Recalibrate or replace the transmitter as necessary.
5. Also verify display versus the analog gauges for both

Ball Valve Repair (Trifecta XPro
Series - 600 psig only)
Early versions of the 600 psig Trifecta XPro Series used
cryogenically rated ball valves in place of solenoid valves.
Chart recommends that these ball valves have their stem
seals checked and tightened at least every six months. Ball
seals and actuator seals should also be checked and replaced
at least once per year.