Page 69 - NG-1 1150, NG-1 1500, NG-1 2000, NG-1 3000 - Stand-Alone Nitrogen Generator System Installation Manual

OL - OVERPRESS
UL - UNDERPRESS ERR1 - GEN.ERROR ERR2 - SHORTOUT1 ERR2 - SHORTOUT2
ERR3 - OVERVOLTG ERR4 - LOWVOLTG ATT1 - SHIFT RP1 ATT1 - SHIFT RP2
ATT2 – ADJ>LIMIT
Pressure Transducer Error and Warning Messages
Applied Pressure > End of Measuring Range Applied Pressure > Start of Measuring Range General Error
Short Circuit Present Output 1
Short Circuit Present Output 2
Supply Voltage >30 VDC1
Supply Voltage <17 VDC1
Switching Point is Set Below Existing Resetting Point. The Resetting Point is Automatically Set with Smallest Possible Hysteresis Below New Switching Point During Zero Point Adjustment, Applied Pressure is Outside Permissible Limits of 5% of the Range
If Key Lock is Active, System will Attempt to go into Programming Mode
Set Pressure within the Measuring Range
Contact Johnson Controls
Rectify Short-Circuit and Disconnect Supply Voltage Temporarily to Return Outputs to Normal Operation
Correct Power Supply Voltage
Press ◊ Button to Acknowledge Message
Press ◊ Button to Acknowledge Message Enter Password
LOCK - KEYLOCKED
1 The Outputs Switch Off if the Supply Voltage Exceeds 30VDC or Falls Below 17VDC
FILTER REPLACEMENT
TYCO Nitrogen Generator Filters
The stand-alone nitrogen generator models contain three (3) separate cartridge filters and a water separator. It is recommended that each filter be replaced at a minimum as part of an annual preventative maintenance program. Johnson Controls offers a replacement filter kit for each model. When maintained properly the nitrogen separation membrane will have an expected service life of 20 years.
Differential pressure indicators are included on the center and left filter housings to provide a visual indication when the cartridge filters are dirty and need replacement. The filter housings have a “Green” area near the base of the top of the housing to indicate flow through the filter housing.
The visual indications are:
• Indicator with “Green” area displayed - Air flow through the generator filters is acceptable.
• Indicator with “Green” area NOT displayed - cartridge filters are dirty and filters need to be
replaced immediately.
Johnson Controls recommends that all cartridge filters (Filters 1,2 & 3) in the nitrogen generator be replaced once a “Green” indication is not displayed.
TFP1275 Page 68 of 84