Alarm Codes cont, Valve stuck, faulty oil

Table 49 — Alarm Codes (cont)

PREFIX		SUFFIX	ALARM	ALARM DESCRIPTION			REASON FOR ALARM	ACTION TAKEN	RESET	PROBABLE CAUSE
CODE		CODE	NUMBER	ALARM DESCRIPTION			REASON FOR ALARM	BY CONTROL	TYPE	PROBABLE CAUSE
CODE		CODE	NUMBER					BY CONTROL	TYPE
P		11	77	Circuit A Low Suction			EXV<5% and either the	Circuit shut down	Manual	Faulty transducer,
				Superheat			suction superheat is less			faulty wiring, faulty
							than the set point by at			thermistor, faulty EXV,
		12	78	Circuit B Low Suction			than the set point by at			thermistor, faulty EXV,
		12	78	Circuit B Low Suction			least 5 F or the suction			or incorrect
				Superheat			least 5 F or the suction			or incorrect
				Superheat			temperature is greater			configuration
							temperature is greater			configuration
							than MOP set point for
							more than 5 minutes
		14	80	Interlock Failure			Lockout Switch Closed	Unit shut down or	Automatic	Lockout Switch Closed
								not allowed to start		on EMM board
		28	81	Electrical Box Thermostat			External pump interlock	Unit shut down or	Automatic	External pump off.
				Failure/Reverse Rotation			open	not allowed to start		Faulty jumper wiring
										when channel not used
		29	82	Loss of communication with			Loss of communication	Unit change to	Automatic	Faulty communication
				System Manager			with an external control	stand-alone		wiring, no power
							device for more than	operation		supply to the external
							2 minutes			controller
		30	83	Master/Slave communication			Communication between	Unit change to	Automatic	Faulty communication
				Failure			the master and slave	stand-alone		wiring, no power or
							machines lost	operation		control power to the
										main base board of
										either module
		67	84	Circuit A Low Oil Pressure			Oil pressure and suction	Circuit shut down	Automatic, first	Plugged oil filter, faulty
		68	85	Circuit B Low Oil Pressure			pressure differential is		occurrence in	oil transducer, oil check
		68	85	Circuit B Low Oil Pressure			less than the set point		24 hours;	valve stuck, plugged oil
							less than the set point		24 hours;	valve stuck, plugged oil
									manual if	strainer
									multiple alarms
									within 24 hours
		70	87	Circuit A Max Oil Filter Differ-			Difference between dis-	Circuit shut down	Manual	Plugged oil filter,
				ential Pressure			charge pressure and oil			closed oil valve, bad oil
							pressure is greater than			solenoid, oil check
		71	88	Circuit B Max Oil Filter Differ-			pressure is greater than			solenoid, oil check
		71	88	Circuit B Max Oil Filter Differ-			50 psi for more than			valve stuck, faulty oil
				ential Pressure			50 psi for more than			valve stuck, faulty oil
				ential Pressure			30 seconds			pressure transducer
							30 seconds			pressure transducer
		84	90	Circuit A High Oil Filter Drop			Difference between dis-	Alert generated	Manual	Plugged oil filter
				Pressure			charge pressure and oil
							pressure is greater than
		85	91	Circuit B High Oil Filter Drop			pressure is greater than
		85	91	Circuit B High Oil Filter Drop			30 psi for more than
				Pressure			30 psi for more than
				Pressure			5 minutes
							5 minutes
		75	93	Circuit A Low Oil Level			Oil level switch open	Circuit shut down or	Automatic, first	Low oil level, faulty
		76	94	Circuit B Low Oil Level				not allowed to start	occurrence in	switch, wiring error,
		76	94	Circuit B Low Oil Level					24 hours;	failed CPM board, oil
									24 hours;	failed CPM board, oil
									manual if	solenoid stuck open
									multiple alarms
									within 24 hours
MC		nn	96	Master chiller configuration			Wrong or incompatible	Unit not allowed to	Automatic	Configuration error
				error Number 01 to nn			configuration data	start in Master-slave
								control
FC		n0	97	No factory configuration			No Configuration	Unit not allowed to	Automatic	Configuration error
								start
		nn	98	Illegal factory configuration			Wrong or incompatible	Unit not allowed to	Automatic	Configuration error
				Number 01 to 04			configuration data	start
P		31	99	Unit is in CCN emergency			Emergency stop com-	Unit shut down or	Automatic	Carrier Comfort
				stop			mand has been received	not allowed to start		Network® Emergency
										Stop command
										received
		32	100	Cooler pump #1 fault			Pump interlock status	Unit shuts down, if	Manual	Faulty contacts, wiring
							does not match pump	available, another		error or low control
		33	101	Cooler pump #2 fault			does not match pump	available, another		error or low control
		33	101	Cooler pump #2 fault			status	pump will start		voltage. Configuration
							status	pump will start		voltage. Configuration
										error.
		15	102	Condenser Flow Switch			—	None	Manual	Configuration error,
				Failure						faulty wiring or external
										pump off
		34	103	Circuit A Reclaim Operation			—	None	Manual	Configuration error
				Failure
		35	104	Circuit B Reclaim Operation
				Failure
		37	105	Circuit A — High condensing			Multiple capacity over-	Circuit shut down	Automatic	Low or restricted
				temperature out of compres-			rides due to high			condenser water flow.
				sor envelope			saturated discharge			Fouled condenser
		38	106	Circuit B — High condensing			temperature			tubes.
				temperature out of compres-
				sor envelope
				LEGEND
CCN	— Carrier Comfort Network®				MLV	— Minimum Load Valve
CPM	— Compressor Protection Module				MOP	— Maximum Operating Pressure
EMM	— Energy Management Module				MTA	— Must Trip Amps
EWT	— Entering Water Temperature				SST	— Saturated Suction Temperature
EXV	— Electronic Expansion Valve				UL	— Underwriters Laboratories
HPS	— High Pressure Switch

Carrier 30XW150-400 specifications Alarm Codes cont, valve stuck, faulty oil

Models: 30XW150-400

valve stuck, faulty oil