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

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

Used when DUPLEX has been configured for AUTOMATIC. This is the preferred selection for most Heat/Cool applications when tuning a new chamber. This selection will sequentially perform both Heat and Cool tuning without further operator intervention.

Table 4-6 Procedure for Using AUTOMATIC 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 LSP1 is a value within the
			Heat Zone (output above 50%).
3	Configure LSP2		Until 2SP (Local Setpoint 2) shows
		Lower
		Display	in the lower display.
4		or	Until LSP2 is a value within the
			Cool Zone (output below 50%).
5	Switch to		Until the “A” indicator is lighted (on
		Man
	“Automatic” Mode	Auto	controllers with Manual option).
6	Show Tuning		Until “TUNE OFF” is shown on
		Lower
	Prompt	Display	lower display.
7	Initiate Tuning		Select “DO SLOW” or “DO FAST”
			in lower display.
	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.

74 UDC3200 Universal Digital Controller Operator Manual 04/08