According to York (Johnson Controls), the level sensor is pre-calibrated at the factory and should not require calibration, however if you need to recalibrate, the
technical guide is now available for download on the product detail page.
Please note that work on this sensor should only be done by fully trained HVAC & R journeyman or equivalent who are qualified to work on this type of equipment.
Replied on July 20, 2017 by Ron from Industrial Stores