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Carrier 30GN040-420 Ð Accessing Functions and Subfunctions, Ð Keypad Directory STATUS

Models: 30GN040-420

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Table 8 Ð Accessing Functions and Subfunctions

Table 8 Ð Accessing Functions and Subfunctions

	OPERATION	KEYPAD	DISPLAY	EXPANSION
	OPERATION	ENTRY	RESPONSE	EXPANSION
		ENTRY	RESPONSE
	To access a function, press
	subfunction no. and function		RESET	RESET SETPOINTS
	name key. Display shows sub-		RESET	RESET SETPOINTS
	name key. Display shows sub-
	function group.

	To move to other elements,		CRT1 x	COOL RESET AT 20 MA
	scroll up or down using arrow		CRT1 x	COOL RESET AT 20 MA
	scroll up or down using arrow
	keys. NOTE: These		CRT2N x	COOL RTEMP (NO RESET)
	displays do not show if		CRT2N x	COOL RTEMP (NO RESET)
	displays do not show if
	control is not con®gured		CRT2F x	COOL RTEMP (FULL RESET)
	for reset.
			CRT2D x	COOL DEGREES RESET

	When the last element in a		RESET	RESET SETPOINTS
	subfunction has been displayed,		RESET	RESET SETPOINTS
	subfunction has been displayed,
	the ®rst element is repeated.		CRT1 x	COOL RESET AT 20 MA
			CRT1 x	COOL RESET AT 20 MA

	To move to next subfunction		DEMAND	DEMAND LIMIT SETPOINTS
	it is not necessary to use		DEMAND	DEMAND LIMIT SETPOINTS
	subfunction number. Press			CURRENT TIME AND DAY OF
	function name key to ad-		TIME	CURRENT TIME AND DAY OF
	vance display through all		TIME	WEEK
	vance display through all			WEEK
	subfunctions within a
	function and then back		SETPOINT	UNIT SETPOINTS
	to the ®rst.
	To move to another function,
	either depress function name
	key for desired function		X ALARMS	THERE ARE n ALARMS
	(display shows the ®rst
	subfunction),
	or
	Access a speci®c sub-
	function by using the sub-		STAGE	CAPACITY STAGING
	function number and the		STAGE	INFORMATION
	function number and the			INFORMATION
	function name key.

Table 9 Ð Keypad Directory

STATUS

SUBFUNCTION	KEYPAD ENTRY	DISPLAY			COMMENT

1 AUTOMATIC DISPLAY		Refer to Automatic Display Operation/Default Display section on page 25.

2 ALARMS/ALERTS		X ALARMS		Number of Tripped Alarms/Alerts
		R S AL		Reset all Alarms/Alerts
		ALARM* X		}
		ALARM* X
		ALARM* X			Displays Tripped Alarms/Alerts
		ALARM* X
		ALARM* X

To toggle between inputs (Yes/No) Press:		(no) or	(yes)

3 MODES		X MODES		Number of Modes in Effect
		X MODE		}
		X MODE			Displays Mode in Effect
		X MODE			Displays Mode in Effect
		X MODE
		X MODE

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Carrier 30GN040-420 operating instructions Ð Accessing Functions and Subfunctions, Ð Keypad Directory STATUS

Contents

Keypad and Display Module Controls, Operation, and TroubleshootingACCESSORY UNLOADER INSTALLATION 30GN040-420Table 1 Ð Unit Sizes and Modular Combinations SAFETY CONSIDERATIONSGENERAL MAJOR SYSTEM COMPONENTSFig. 1 Ð 30GN Control Panel 040-110Unit Shown LEGEND CCN Ð Carrier Comfort NetworkTB Ð Terminal Block Keypad and Display Module Also Called HSIO Table 3 Ð Thermistor and Transducer Locations Fig. 3 Ð Compressor Ground Fault ModuleCompressor Protection Control Module CPCS OPERATION DATATable 4A Ð Capacity Control Steps Table 4A Ð Capacity Control Steps, 040-070cont Table 4A Ð Capacity Control Steps, 040-070cont LOADING SEQUENCE A LOADING SEQUENCE A LOADING SEQUENCE A UNIT LOADING SEQUENCE A LOADING SEQUENCE A A1*,B1 LOADING SEQUENCE A A1,kB1 LOADING SEQUENCE A LOADING SEQUENCE A LOADING SEQUENCE A LOADING SEQUENCE A LOADING SEQUENCE A LOADING SEQUENCE A Fig. 4 Ð Keypad and Display Module Head Pressure ControlPumpout Keypad and Display Module Also Called HSIOTable 5 Ð Condenser Fan Sequence Table 7 Ð Functions and Subfunctions Table 6 Ð Keypad and Display Module UsageTable 9 Ð Keypad Directory STATUS Table 8 Ð Accessing Functions and SubfunctionsKEYPAD ENTRY 6 TEMPERATURETable 9 Ð Keypad Directory cont STATUS cont SUBFUNCTIONDISPLAY Table 9 Ð Keypad Directory cont STATUS contSUBFUNCTION KEYPAD ENTRYTEST Table 9 Ð Keypad Directory cont STATUS contSCHEDULE Table 9 Ð Keypad Directory cont TEST contTable 9 Ð Keypad Directory cont SCHEDULE cont SERVICETable 9 Ð Keypad Directory cont SERVICE cont KEYPAD ENTRY 3 ALARM/ALERTTable 9 Ð Keypad Directory cont HISTORY SUBFUNCTIONTable 9 Ð Keypad Directory cont SET POINT Example 2 Ð Reading Current Operating Modes Example 1 Ð Reading Alarm CodesTable 10 Ð Operational and Mode Display Codes Pulldown Set Point Example 3 Ð Using Test FunctionReset Set Points Chilled Fluid Set PointChilled Fluid Set Point Example 5A Ð External ResetTable 11 Ð Reset Amounts Example 4 Ð Reading and ChangingExample 5B Ð 4 to 20 mA and Internally or Externally Powered ResetExample 5C Ð Using Return Fluid Temperature Reset Fig. 5 Ð Cooling Return Fluid ResetCOMM Ð Communications Bus Fig. 6 Ð Cooling External Temperature ResetÐ Power Ð SwitchExternally powered Fig. 8 Ð 4-20mA Cooling Temperature ResetExample 6 Ð Changing Reset Type Table 12 Ð Service FunctionsFirst Log On As Shown in Table To Disable Demand LimitExample 7B Ð Using Demand Limit 4-20mA Example 8 Ð Setting Time of Day and Day of WeekFig. 9 Ð 4-20mA Demand Limiting and press while on the correct conguration Table 14 Ð Adjustable Field CongurationsTable 13 Ð Factory Conguration Keystrokes To change a conguration enter the new congurationExample 9 Ð Using the Schedule Function cont Example 9 Ð Using the Schedule FunctionTROUBLESHOOTING Example 10 Ð Holiday Schedule FunctionFig. 10 Ð Sample Time Schedule Cooling load satised Table 16 Ð Alarm and Alert Codes Table 16 Ð Alarm and Alert Codes cont Fig. 11A Ð 24-VSafety Circuit Wiring Code 30 Reset input failure 4 to 20 mA alert Loss of communication can be attributed to a grounded transformer with a secondary voltage of 21 vac supplying the PSIO, DSIO-LV,or 4 IN/4 OUT the 12.5-vactrans- former supplying the DSIO-EXVmodule, or the 24-vactrans- former supplying PS1 for the transformers. These transformers should not be grounded, or serious damage to controls can result. Check to be sure the transformers are not grounded Code 42 Cooler freeze protection alarm Fig. 12 Ð Electronic Expansion Valve EXV Electronic Expansion Valve EXVModule, DSIO EXV Fig. 13 Ð EXV Cable Connections to EXV Driver6.Check operation of EXV TEMPERATURE TEMPERATURE 1.Disconnect transducer from the system Fig. 15 Ð Thermistor Locations FLUID-SIDETEMPERATURE THERMISTOR T2COMPRESSOR SUCTION GAS TEMPERATURE ALL UNITS AND FLUID-SIDETEMPERATURETRANSDUCER REPLACEMENT Control Modules Fig. 21 Ð Low-VoltageRelay Module DSIO ACCESSORY UNLOADER INSTALLATIONFig. 19 Ð Sensor Bus Wiring Communications Fig. 20 Ð Processor Module PSIOFig. 22 Ð 4 In/4 Out Module SIO InstallationTable 20 Ð Standard and Accessory Unloaders Table 19 Ð TroubleshootingThe keypad LCD will display 3.Wire in the solenoid valvespad display reads OUTPUTS. Press until display PressSee Table Externally Powered Switch InputsFig. 26 − Demand Limit Ð 4-20mA Signal Fig. 30 Ð Remote Reset from 4-20mA SignalFig. 35 Ð Interlocks InstallationFig. 34 Ð Remote Alarm REPLACING DEFECTIVE PROCESSOR MODULEPage Copyright 1995 Carrier Corporation