Ingersoll-Rand Trane Intellipak, General Service Bulletin

Page: 3 / 10

RT-SVB98B-EN 3
4. Referring to Figure 1 , if a value other than the factory
preset is shown, place the cursor beneath that value
and press the + and - keys to adjust it to the factory
preset value. Then press the ENTER key to set the
change. The display will prompt you to enter a
password.
The password is “+ + - +”. After entering the password,
press the ENTER key again. It won’t be necessary to
enter the password again for the next 15 minutes.
Important: The factory-preset values have been chosen
to provide stable but responsive control
loops. These values
MUST NOT be further
adjusted from the factory presets.
Figure 1. Control algorithm tuning parameter setup
submenu screens
Screen always shown
Control Algorithm Tuning Parameters
Press ENTER to Review or Adjust
Screen shown only for units with Dehumidification Installed
SA Reheat Control Gains
Proportional XX.X %/F Reset Time XXX Sec
└─┬─┘ └─┬─┘
Range 0.2-20.0 Range 5-600
Default 3.3 Default 50
Note: “XXX Sec” field becomes “DISABLE” if > 3600 seconds
Screen shown only for VAV or SZVAV units
VAV Cooling Control Gains
Proportional XX.X %/F Reset Time XXX Sec
└─┬─┘ └─┬─┘
Range 0.2-20.0 Range 5-600
Default 3.3 Default 50
Note: “XXX Sec” field becomes “DISABLE” if > 3600 seconds
Screen shown only for IntelliPak II VAV or SZVAV units with Electric heat installed
VAV Heating Control Gains
Proportional XX.X %/F Reset Time XXX Sec
└─┬─┘ └─┬─┘
Range 0.2-20.0 Range 5-600
Default 3.3 Default 50
Note: “XXX Sec” field becomes “DISABLE” if > 3600 seconds
Screen shown only for units with Air Economizer installed
Range 0.2-20.0
Default 2.0
┌─┴─┐
Econ SA Cntl Gain: Proportional XX.X %/F
Reset Time XXX Sec Rate Time XXX Sec
└─┬─┘ └─┬─┘
Range 5-600 Range 0-100
Default 75 Default 0
NOTE: Referred to as “VAV Occ Econ Ctrl Gains” in IPC documentation