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v UDC3200 Universal Digital Controller Operator Manual 4/08
4.5.2 Tune for Duplex (Heat/Cool).............................................................................................73
4.5.3 Using AUTOMATIC TUNE at start-up for Duplex (Heat/Cool) ......................................74
4.5.4 Using BLENDED TUNE at start-up for Duplex (Heat/Cool) ...........................................75
4.5.5 Using MANUAL TUNE at start-up for Duplex (Heat/Cool).............................................75
4.5.6 Error Codes ........................................................................................................................77
4.6 Fuzzy Overshoot Suppression.......................................................................................................78
5 TROUBLESHOOTING/SERVICE........................................................................79
5.1 Background Tests..........................................................................................................................79
5.2 Controller Failure Symptoms........................................................................................................81
6 SALES AND SERVICE........................................................................................ 82