Carrier 30XW150-400 specifications Alarm Codes cont, A1, B1

Table 49 — Alarm Codes (cont)

PREFIX		SUFFIX	ALARM	ALARM DESCRIPTION			REASON FOR ALARM	ACTION TAKEN	RESET	PROBABLE CAUSE
CODE		CODE	NUMBER					BY CONTROL	TYPE
P		40	108	Circuit A — Repeated low			Multiple capacity	Circuit shut down	Automatic	Inaccurate
				suction temp overrides			overrides due to low satu-			transducer, faulty EXV,
							rated suction temperature			low refrigerant charge,
		41	109	Circuit B — Repeated low
										plugged or restricted
				suction temp overrides
										liquid line filter drier.
		43	111	Low entering water tempera-			Not supported	—	—	—
				ture in heating
		73	112	Condenser pump #1 default			—	None	Manual	Faulty contacts, wiring
		74	113	Condenser pump #2 default						error or low control
										voltage. Configuration
										error.
		78	114	Circuit A High Discharge			Discharge gas tempera-	Circuit shut down	Manual	Faulty transducer/high
				Temperature			ture is higher than 212 F			pressure switch, low/
							for more than 90 seconds			restricted condenser
		79	115	Circuit B High Discharge
										flow
				Temperature
		81	117	Circuit A Low Economizer			The economizer pressure	Circuit shut down	Manual	Faulty transducer,
				Pressure			is below the suction pres-			faulty main base board,
		82	118	Circuit B Low Economizer			sure more than 14.5 psi			faulty wiring, closed
							for more than 10 seconds			suction service valve,
				Pressure
										faulty EXV
		87	120	Circuit A Slide Valve Control			If 100% load current is	None	Manual	Slide valve stuck, inac-
				Unverifiable			less than 1.1 times of			curate initial current
							30% load current, or for			reading
		88	121	Circuit B Slide Valve Control
							1 minute when active
				Unverifiable
							cooling setpoint is
							greater than 32 F.
		90	123	Cooler flow switch set point			—	None	Manual	Configuration error
				configuration failure
		91	124	Cooler flow switch failure			Flow switch open	Unit shut down	Manual if unit	Faulty flow switch, low
									is running,	cooler flow, faulty
									automatic	wiring, faulty cooler
									otherwise	pump, faulty main base
										board
Sr		nn	128	Service maintenance alert			Field programmed	None	Manual	Maintenance required
				Number # nn			elapsed time has expired
							for maintenance time
A1, B1		01	132-01,	Compressor Motor tempera-			Compressor temperature	Circuit shut down	Manual	Economizer EXV fail-
			133-01	ture too high			higher than 232 F for			ure (350,400 only),
							more than 90 seconds			faulty CPM board,
										low refrigerant charge
		02	132-02,	Compressor Motor tempera-			Compressor temperature	Circuit shut down	Manual	Faulty thermistor, faulty
			133-02	ture out of range			reading out of the range of			wiring, faulty CPM
							–40 F to 245 F			board
		03	132-03,	Compressor High pressure			HPS input on CPM board	Circuit shut down	Manual, press	Loss of condenser air
			133-03	switch protection			open		reset button on	flow, operation beyond
									HPS	compressor envelope,
										faulty high pressure
										switch, faulty wiring,
										faulty CPM board
		04	132-04,	Compressor Over current			CPM board detects high	Circuit shut down	Manual	Operating beyond
			133-04				motor current compared			compressor envelope,
							with MTA setting			incorrect configuration
		05	132-05,	Compressor Locked rotor			CPM board detects locked	Circuit shut down	Manual	Compressor motor fail-
			133-05				rotor current compared			ure, unloader slide
							with MTA setting			valve failure, compres-
										sor mechanical failure
		06	132-06,	Compressor Phase loss L1			CPM board detects cur-	Circuit shut down	Manual	Blown fuse, wiring
			133-06				rent unbalance greater			error, loose terminals
							than 65% for more than
		07	132-07,	Compressor Phase loss L2
							1 second
			133-07
		08	132-08,	Compressor Phase loss L3
			133-08
		09	132-09,	Compressor Low current			CPM detects motor cur-	Circuit shut down	Manual	Power supply discon-
			133-09	alarm			rent less than a certain			nected, blown fuse,
							percentage of the MTA			wiring error, contact
							setting, compressor not			deenergized, faulty
							operating			current toroid high
										pressure switch trip.
				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

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