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OPERATING INSTRUCTIONS
30
DEWPOINT ADJUSTMENT (DRYER ONLY)
The dewpoint may be adjusted by the Hot Gas Bypass Valve (HGBV).
To reduce the dewpoint turn the HGBV adjustment counter−clockwise.
At ambient conditions of 25_C (77_F) a low−side pressure of 1.8barg
(26.5psig) 15 ±% may yield a dewpoint of 3_C (37_F). Reduction in the
low−side pressure may result in adverse operating conditions.
STATUS DISPLAY
Status Display 1.1 is the default display. Navigate the other Status
screens by pressing the Status Display Key once and then pressing the
Up or Down navigation keys.
Status Display 1.1
Status Display 1.1 provides the following information:
S Discharge Pressure 100 − pressure at the discharge point of the
compressor package.
S Target Pressure [100] − pressure that the compressor tries to
maintain when running in VFD mode.
S Percent of Load − current motor speed / max motor speed * 100%.
S Lifetime Energy Savings − a cumulative total of the energy savings,
calculated hourly. This cannot be reset.
S Maintenance Indicator − a bar graph display indicating 0 to 100 %
used to continuously indicate the percentage of the maintenance
interval time remaining until the next service is due.
S Warning Text Message.
S Operational Status.
i. Running, signified by one arrow rotating:
ii. Stopped, signified by no arrows.
iii. Stopped in Auto Restart, signified by all arrows shown:
iv. Scheduled Start / Stop Enabled
Status Display 1.2
Status Display 1.2 provides the following information:
S Discharge Pressure 100− pressure at the discharge point of the
compressor package.
S Target Pressure [100] − pressure that the compressor tries to
maintain when running in VFD mode.
S Motor Speed.
S Energy Saving − a cumulative total, calculated hourly, and can be
reset by selecting Reset Energy Savings in the Operator Setpoints.
This is calculated the same as Lifetime Energy Savings but this
accumulated value can be reset.
S Maintenance Indicator − a bar graph display indicating 0 to 100 %
used to continuously indicate the percentage of the maintenance
interval time remaining until the next service is due.
S Warning Text Message.
S Operational Status.
i. Running, signified by one arrow rotating:
ii. Stopped, signified by no arrows.
iii. Stopped in Auto Restart, signified by all arrows shown:
iv. Scheduled Start / Stop Enabled.
Status Display 1.3
Status Display 1.3 provides the following information:
S Discharge Pressure 100 − pressure at the discharge point of the
compressor package.
S Logging Pressure Screen (XY Plot) of Discharge Pressure and
Target Pressure vs. Time.
S % Load − current motor speed / max motor speed * 100%.
Status Display 1.4
Status Display 1.4 provides the following information:
S % Load − current motor speed / max motor speed * 100%.
S Logging % Load Screen (XY Plot) of % Load vs. Time.
S Discharge Pressure 100 − pressure at the discharge point of the
compressor package.
Status Display 1.5
Status Display 1.5 provides the following information:
S Hourmeter − indicates the number of hours the compressor motor
has run throughout it’s entire lifetime.
S Current Date and Time.
S Time to Scheduled Start.
S Time to Scheduled Stop.
S Software Version.
S Service Contact Information.
S % Load − current motor speed / max motor speed * 100%.
S Discharge Pressure 100 − pressure at the discharge point of the
compressor package.
SETUP SCREEN
Press the SETUP button to view and adjust settings.
Press the arrow keys to view the settings.
S Target Pressure.
S Auto Stop Pressure.
S VFD/Fixed Mode.
S Scheduled Start / Stop.
S Scheduled Start Time.
S Scheduled Stop Time.
S Energy Savings Reset.
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