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<br />n <br />[I <br /> <br /> Returned <br />Parameter Pre-Test to Pre-Test <br /> Values Values ..j <br />Discharge air 55 X <br />temperature Set <br />point <br />DA-T. set point <br />Discharge air stalic 1.0" X <br />set Dolnt <br /> <br /> Returned <br />Parameter Pre-Test to Pre-Test <br /> Values Values oJ <br />Low limit protection 38 X <br />set point <br />LLP set point <br />High Umlt 2.0" X <br /> <br />. <br /> <br />[1 <br /> <br />[] <br />[] <br /> <br />p. _ Record of All Values for PID Loop Control Parameters: <br /> <br />COntrol loop Proportional httegral Derivative <br /> Parameter Parameter Parameter <br /> p I D <br />Discharge Air Heating Coil -60 .6 Note 1 <br />Control Valve <br />Discharge Air DX COil Control 50 .6 Notel <br />SF VFD speed control Unknown <br />RF VFD speed control Unknown <br />Outside air damper control Unknown <br />Economizer <br /> <br />D <br />D <br /> <br />II <br />D <br />D <br />D <br />D <br />o <br /> <br />[) <br />o <br />o <br />lJ <br />Ll <br />U <br /> <br />Notes: 1. <br />2. <br />3. <br />4. <br />5. <br />6. <br />7. <br />8. <br />9. <br />10. <br />11. <br />12. <br />13. <br />14. <br /> <br />. <br /> <br />Set these numbers at the OX controller to gain discharge air lemperature control. <br />Didn1 lest OX staging because 01 outside air temperature. <br />Return CFM is not brought out on computer. GX-9100 program has a set point of .7OOCFM. <br />Drawing shows only IF-4 associabod with this unit. main computer has three _ust fans on ft. AI fans are commanded off. <br />Outside air dampers didn1 close, no alarms _e generated at the main computer. <br />Unable to get unR to start when IJIIOOOJpied. <br />Unable to locate IF-4 on screen, changing air handler status has no effect on IF-'l. <br />Air handler has a single 55" degree discharge temperature set point <br />Discharge a~ temperature was ~ng from 50 to eo degrees. I changed PI numbers 10 get better control. <br />Set point is not available from main computer. <br />No alarm is generated. <br />Filter status is not on computer. <br />Fans did not shut down. Heating valve controRed for discharge set point. No alarm generated. <br />UnR is not programmed for morning wann up. <br /> <br />. <br /> <br />Page 2 01 6 <br /> <br />File: AHU1_FinaIReport.doc <br />