Honeywell UDC3200 manual Using Blended Tune at start-up for Duplex Heat/Cool

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

When DUPLEX has been configured for DISABLE. This is the preferred selection for Heat/Cool applications which use a highly insulated chamber (a chamber which will lose heat very slowly unless a cooling device is applied). Only one local setpoint (LSP 1) is needed for this selection.

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 4-7 Procedure for Using BLENDED TUNE at Start-up for Duplex Control

Step	Operation	Press	Result
1	Configure LSP1		Until SP (Local Setpoint 1) shows
		Lower
		Display	in the lower display.
2		or	Until the Setpoint is to the desired
			value.
3	Switch to		Until the “A” indicator is lighted (on
		Man
	“Automatic” Mode	Auto	controllers with Manual option).
4	Show Tuning		Until “TUNE OFF” is shown on
		Lower
	Prompt	Display	lower display.
5	Initiate Tuning		Select “DO SLOW” or “DO FAST”
			in lower display.
6	Tuning in operation		Upper display will show a “T” as
		Lower
		Display	long as ACCUTUNE process is
			operating. When process
			completes, tuning parameters are
			calculated and lower display will
			show “NO TUNE” prompt.

4.5.5 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 4-8 Procedure for Using MANUAL TUNE for Heat side of Duplex Control

Step	Operation	Press	Result
1	Configure LSP1		Until SP (Local Setpoint 1) shows
		Lower
		Display	in the lower display.
2		or	Until LSP1 is a value within the
			Heat Zone (output above 50%).
3	Switch to		Until the “A” indicator is lighted (on
		Man
	“Automatic” Mode	Auto	controllers with Manual option).

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