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Parker Hannifin Corporation
Bulletin TI-HFX-3D
Troubleshooting and Service
Symptom - Nitrogen Generator
Course of Action
Loss of Outlet Pressure
Check that the flow control valve on the generator is fully open and control the flow with a valve at the process.
Check operating pressure to assure that it is greater than 60 psig (4.1 barg).
Check the system for leaks.
Loss of Outlet Flow
Check operating pressure to assure that it is greater than 60 psig (4.1 barg).
Check setting of flow control valve. Adjust if necessary.
Check the system for leaks.
Purity is Lower than Specified for
Check setting of flow rate compared to specification.
Check the operating pressure to assure that it has not varied from the original reading.
Check the system for leaks.
Measure the temperature and dewpoint of the inlet air. The recommended temperature is 68°F (20°C) and the recommended
dewpoint 60°F (15°C) or lower.
Calibrate oxygen analyzer (if needed).
Air Leak Through Drains of Prefilters
Check inlet pressure. It should be greater than 15 psig (1 barg) to seal drain.
Remove tubing from the drain outlet, hold finger over drain opening for a few seconds to allow pressure to build and drain to seal.
Remove bowl from filter assembly and rinse with water.
If leak persists, replace automatic float drain (P/N 21552).
Symptom - Oxygen Analyzer
Course of Action
(Model HFX0-3 only)
Display varies
Check process flow demand
Check sensor light
Check sample lines for leaks
Alarm stays on
Check set points
Limited range during calibration
Replace sensor (P/N 72695)
Operating Conditions
To arrange for system service, contact the Technical Services Department at 1-800-343-4048, 8AM
to 5PM Eastern Time. For location outside North America and the UK, please contact your local
representative.
All troubleshooting and service activities should be performed by suitable personnel using
reasonable care.
Complete and mail your registration card.
Keep your product certification in a safe place.
Each major component in this unit has a serial number. A serial number for the entire unit is at-
tached to the left side panel, near the inlet port. For your own records, and in case service is
required, please record the following:
DATE IN SERVICE
SERIAL NO.
Remember To:
Serial Numbers
WARRANTY (NORTH AMERICA ONLY)
(FOR INFORMATION CONTACT YOUR LOCAL REPRESENTATIVE)
Parker Hannifin guarantees to the original purchaser of this product, that if the product fails or is defective within
12 months from the date of purchase, when this product is operated and maintained according to the instructions
provided with the product, then Parker guarantees, at Parker’s option, to replace the product, repair the product,
or refund the original price for the product. This warranty applies only to defects in material or workmanship and
does not cover: ring and valve wear on compressors, routine maintenance recommended by the instructions
provided with this product, or filter cartridges. Any modification of the product without written approval from Parker
will result in voiding this warranty. Complete details of the warranty are available on request. This warranty applies
to units purchased and operated in North America.
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