Carrier 30GN040-420 Ð Keypad and Display Module Usage, Ð Functions and Subfunctions

Table 6 Ð Keypad and Display Module Usage

FUNCTION	USE
KEYS
	STATUS Ð For displaying diagnostic codes and
	current operating information about the machine.
	HISTORY Ð For displaying run time, cycles and
	previous alarms.
	SERVICE Ð For entering speci®c unit con®gura-
	tion information.
	TEST Ð For checking inputs and outputs for
	proper operation.
	SCHEDULE Ð For entering occupied/unoccupied
	schedules for unit operation.
	SET POINT Ð For entering operating set points
	and day/time information.
OPERATIVE	USE
KEYS
	EXPAND Ð For displaying a non-abbreviated ex-
	pansion of the display.
	CLEAR Ð For clearing the screen of all displays.
	UP ARROW Ð For returning to previous display
	position.
	DOWN ARROW Ð For advancing to next display
	position.
	ENTER Ð For entering data.

3.All functions are made up of a group of subfunctions. To enter a subfunction, ®rst press subfunction number de- sired. Then press the function key in which the subfunc- tion resides. To move within that subfunction, press

the or arrow. For example, a enters the Temperature Information subfunction.

4.At any time, another subfunction may be entered by press- ing the subfunction number, then the function key.

5.Prior to starting unit, check leaving ¯uid set point for cor- rect setting. Refer to Set Point Function section on page 38.

6.Depending on system con®guration, all displays may not be shown. All displays are shown unless marked with the following symbol:

²Must be con®gured.

For additional unit start-up procedures, see separate Installation, Start-Up, and Service Instructions supplied with unit.

Table 7 Ð Functions and Subfunctions

			FUNCTIONS
SUBFUNCTION	Status	Test	Schedule	Service	History		Set Point
NO.
1	Automatic	Outputs	Override	Log On and	Run Time		Set Points
	Display			Log Off			(Chiller Fluid)
2	Alarm	Compressors	Clock Select	Version	Starts		Reset
	Display	and Unloaders		(Software)			Set Points
3	Mode (Operating)	Calibrate	Period 1	Factory	Alarm		Demand Limit
	Display	Transducers		Con®guration	History		Set Points
4	Capacity	Ð	Period 2	Field	Ð		Date and
	Stages			Con®guration			Time
5	Set Points	Ð	Period 3	Service	Ð		Leaving Chiller
	(Current Operating)			Con®guration			Fluid Alert Limit
6	Temperatures	Ð	Period 4	Ð	Ð		Ð
7	Pressures	Ð	Period 5	Ð	Ð		Ð
8	Analog Inputs	Ð	Period 6	Ð	Ð		Ð
9	Discrete Inputs	Ð	Period 7	Ð	Ð		Ð
10	Outputs	Ð	Period 8	Ð	Ð		Ð
11	Ð	Ð	HOLIDAYS	Ð	Ð	Ð

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