22
nitrogen gas generator
GEN
2
i4.0
13.1 troubleshooting
Problem
Problem Caused
Solution
Poor N
2
Purity
or Product
Performance
Insufficient inlet Pressure
Adjust inlet pressure settings.
Electrical Fault
Ensure the power is on and the generator display panel is illuminated;
check the generator is cycling correctly
Moist or contaminated CMS
Eliminate the cause of contamination, check the external inlet filtration
(water separator etc.) for failed auto-drains or condensate build up.
Replace inlet AMT dryer cartridge (were fitted) & CMS - Do not reuse.
Excessive air consumption
Ensure the performance of the generator matches the system and
required N
2
outlet delivery.
Check for leaks through out the unit and system
Excessive inlet air temperature
Check against technical specifications (remove heat source)
Insufficient purge air
Consult service personnel to adjust settings
Exhaust silencer blocked
Replace silencer/muffler & consult service personnel if problem persists
Failure of
generator
to cycle
Control not functioning correctly
Ensure the generator is powered; check the control solenoids valves are
cycling correctly
Controller not illuminated
Check power to unit & fuse
Insufficient inlet pressure
Check rating plate for set operating pressures
Failure to de-pressurised when cycling
Solenoid valve not functioning correctly; check if there is no power to coil,
replace valve if faulty. A correctly working valve outputs an audible click
when it energises.
Outlet flow stops
Check inlet air supply, purity valve & N
2
Purity (check alarm status)
Constant
pressurisation
Failure to cycle
Switch off, allow for 30 seconds and turn on.
Erratic air flow from exhaust
Faulty or damaged valve; service required
Reference to known misuses;
Opening the inlet valve too quickly
- Valve should be opened slowly allowing the pressure to build up gradually
Inlet/outlet head pipe
- Pipe diameter too small or pipe work unsupported
- Inlet pipe work from low point in system allowing bulk water to collect and enter the generator
Electrical Controller
- Incorrect fuse fitted or fuse blow. Check the main IEC connection for fuse
Additional Items:
• Use of non-authorised components
• Untrained/unauthorised maintenance/installation personnel used
• Cleaning the unit with cleaning products that could damage the components or the CMS.
• No direct contact with water, i.e.. a water hose.
• Covers removed or loose during operation.
• Located outside without appropriate protection
• Failure to carry out a service when indicated by the product.
