Carrier 19XRV specifications Icvc Alert Codes, Message, Prestart

Table 4 — ICVC Alert Codes

PRE-START ALERTS: These alerts only delay start-up. When alert is corrected, the start-up will continue. No reset is necessary.

ICVC FAULT	PRIMARY	SECONDARY	PRIMARY CAUSE	ADDITIONAL CAUSE/REMEDY
STATE	MESSAGE	MESSAGE
100	PRESTART	STARTS LIMIT	100→Excessive compressor starts	Depress the RESET softkey if additional start
	ALERT	EXCEEDED	(8 in 12 hours).	is required. Reassess start-up requirements.
101	PRESTART	HIGH BEARING	101→Comp Thrust Brg Temp [VALUE]	Check oil heater for proper operation.
	ALERT	TEMPERATURE	exceeded limit of [LIMIT]*.	Check for low oil level, partially closed oil sup-
				ply valves, clogged oil filters.
				Check the sensor wiring and accuracy.
				Check Comp Thrust Brg Alert setting in
				SETUP1 screen.
102	PRESTART	HIGH MOTOR	102→Comp Motor Winding Temp	Check motor sensors for wiring and accuracy.
	ALERT	TEMPERATURE	[VALUE] exceeded limit of [LIMIT]*.	Check motor cooling line for proper operation,
				or restrictions.
				Check for excessive starts within a short time
				span.
				Check Comp Motor Temperature Override
				setting in SETUP1 screen.
103	PRESTART	HIGH	103→Comp Discharge Temp [VALUE]	Allow discharge sensor to cool.
	ALERT	DISCHARGE	exceeded limit of [LIMIT]*.	Check sensor wiring and accuracy.
		TEMP		Check for excessive starts.
				Check Comp Discharge Alert setting in
				SETUP1 screen.
104	PRESTART	LOW	104→Evaporator Refrig Temp [VALUE]	Check transducer wiring and accuracy.
	ALERT	REFRIGERANT	exceeded limit of [LIMIT]*.	Check for low chilled fluid supply
		TEMP		temperatures.
				Check refrigerant charge.
				Check Refrig Override Delta T in SETUP1
				screen.
105	PRESTART	LOW OIL	105→Oil Sump Temp [VALUE]	Check oil heater contactor/relay and power.
	ALERT	TEMPERATURE	exceeded limit of [LIMIT]*.	Check oil level and oil pump operation.
106	PRESTART	HIGH	106→Condenser Pressure [VALUE]	Check transducer wiring and accuracy.
	ALERT	CONDENSER	exceeded limit of [LIMIT]*.	Check for high condenser water
		PRESSURE		temperatures.
				Check high condenser pressure switch wiring.
107	PRESTART	LOW LINE	107→Percent Line Voltage [VALUE]	Check voltage supply.
	ALERT	VOLTAGE	exceeded limit of [LIMIT]*.	Check voltage transformers and switch gear.
				Consult power utility if voltage is low.
108	PRESTART	HIGH LINE	108→Percent Line Voltage [VALUE]	Check voltage supply.
	ALERT	VOLTAGE	exceeded limit of [LIMIT]*.	Check power transformers.
				Consult power utility if voltage is high.
109	PRESTART	GUIDE VANE	109→Actual Guide Vane Pos	Press STOP button on ICVC and perform
	ALERT	CALIBRATION	Calibration Required Before Startup.	Guide Vane Calibration in Controls Test
				screen.
				Check guide vane actuator feedback
				potentiometer.
110	PRESTART	HIGH	110→Rectifier Temperature [VALUE]	Check that VFD refrigerant isolation valves
	ALERT	RECTIFIER	exceeded limit of [LIMIT]*.	are open.
		TEMP		Check VFD refrigerant cooling solenoid and
				refrigerant strainer.
				Check for proper VFD cooling fan operation
				and blockage.
111	PRESTART	HIGH	111→Inverter Temperature [VALUE]	Check that VFD refrigerant isolation valves
	ALERT	INVERTER	exceeded limit of [LIMIT]*.	are open.
		TEMP		Check VFD refrigerant cooling solenoid and
				refrigerant strainer.
				Check for proper VFD cooling fan operation
				and blockage.

*[LIMIT] is shown on the ICVC as temperature, pressure, voltage, etc., predefined or selected by the operator as an override or an alert. [VALUE] is the actual pressure, temperature, voltage, etc., at which the control tripped.

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