Using Manual Tune At Start-Up For Duplex (Heat/Cool); Table 4-13 Procedure For Using Blended Tune At Start-Up For Duplex Control; Table 4-14 Procedure For Using Manual Tune For Heat Side Of Duplex Control - Honeywell UDC2500 Product Manual

This selection results in performance tuning over the full range utilizing both Heat and
Cool outputs to acquire blended tune values that are then applied to both Heat and Cool
tuning parameters. Both PID sets are set to the same values.

Table 4-13 Procedure for Using BLENDED TUNE at Start-up for Duplex Control

Step
1
2
3
4
5
6
4.11.5

Using MANUAL TUNE at start-up for Duplex (Heat/Cool)

When DUPLEX has been configured for MANUAL. This selection should be used when
tuning is needed only for the HEAT zone or only for the COOL zone but not both. If
Local Setpoint 1 is used, then the controller will perform a HEAT zone tune. If Local
Setpoint 2 is used, then the controller will perform a COOL zone tune.

Table 4-14 Procedure for Using MANUAL TUNE for Heat side of Duplex Control

Step
1
2
3
4
4/07
Operation
Configure LSP1
Switch to
"Automatic" Mode
Show Tuning
Prompt
Initiate Tuning
Tuning in operation
Operation
Configure LSP1
Switch to
"Automatic" Mode
Show Tuning
Prompt
UDC2500 Universal Digital Controller Product Manual
Monitoring and Operating the Controller
Press
Until SP (Local Setpoint 1) shows
Lower Lower Lower
in the lower display.
Display Display Display
Until the Setpoint is to the desired
or
value.
Until the "A" indicator is lighted (on
M-A M-A M-A
controllers with Manual option).
Reset Reset Reset
Until "NoTUNE" is shown on lower
Lower Lower Lower
display.
Display Display Display
Select "DoSLOW" or "DoFAST" in
lower display.
Upper display will flash "TUNE" as
Lower Lower Lower
long as ACCUTUNE process is
Display Display Display
operating. When process
completes, tuning parameters are
calculated and lower display will
show "NoTune" prompt.
Press
Until SP (Local Setpoint 1) shows
Lower Lower Lower
in the lower display.
Display Display Display
Until LSP1 is a value within the
or
Heat Zone (output above 50%).
Until the "A" indicator is lighted (on
M-A M-A M-A
controllers with Manual option).
Reset Reset Reset
Until "NoTUNE" is shown on lower
Lower Lower Lower
display.
Display Display Display
Result
Result
107